Volume 119
Main Index

Issue 01

Paramagnetic NMR Spectroscopy of Microperoxidase-8 Donald W. Low, Harry B. Gray, and Jens Ø. Duus pp 1–5 DOI: 10.1021/ja962948s

In Vitro Site-Specific Incorporation of Fluorescent Probes into β-Galactosidase Lance E. Steward, Cynthia S. Collins, Marcella A. Gilmore, Justin E. Carlson, J. B. Alexander Ross, and A. Richard Chamberlin pp 6–11 DOI: 10.1021/ja963023f

Design and Synthesis of Metal Ion-Recognition-Induced Conjugated Polymers:  An Approach to Metal Ion Sensory Materials Bing Wang and Michael R. Wasielewski pp 12–21 DOI: 10.1021/ja962229d

Synthesis of (−)-Haliclonadiamine Douglass F. Taber and Yanong Wang pp 22–26 DOI: 10.1021/ja962162u

Transition State Analysis of NAD+ Hydrolysis by the Cholera Toxin Catalytic Subunit Kathleen A. Rising and Vern L. Schramm pp 27–37 DOI: 10.1021/ja9621915 Supporting Info

Stereochemistry in Inactivation of Carboxypeptidase A. Structural Analysis of the Inactivated Carboxypeptidase A by an Enantiomeric Pair of 2-Benzyl-3,4-epoxybutanoic Acids Seong-Eon Ryu, Hee-Jeong Choi, and Dong H. Kim pp 38–41 DOI: 10.1021/ja9622463

Computational Simulation and Analysis of Dynamic Association between Plastocyanin and Cytochrome f. Consequences for the Electron-Transfer Reaction G. Matthias Ullmann, Ernst-Walter Knapp, and Nenad M. Kostić pp 42–52 DOI: 10.1021/ja962237u Supporting Info

Shapes of Dendrimers from Rotational-Echo Double-Resonance NMR Karen L. Wooley, Christopher A. Klug, Kenzabu Tasaki, and Jacob Schaefer pp 53–58 DOI: 10.1021/ja962285e

Intrusion of Counterions into the Spine of Hydration in the Minor Groove of B-DNA:  Fractional Occupancy of Electronegative Pockets Matthew A. Young, B. Jayaram, and D. L. Beveridge pp 59–69 DOI: 10.1021/ja960459m

Structure and Function of Subtilisin BPN‘ Solubilized in Organic Solvents Pramod P. Wangikar, Peter C. Michels, Douglas S. Clark, and Jonathan S. Dordick pp 70–76 DOI: 10.1021/ja962620z

Synthesis and Assembly of New Molecular Hosts:  Solvation and the Energetics of Encapsulation R. Meissner, X. Garcias, S. Mecozzi, and J. Rebek, Jr. pp 77–85 DOI: 10.1021/ja962991f

Molecular Symmetry and the Design of Molecular Solids:  The Oxalamide Functionality as a Persistent Hydrogen Bonding Unit Seth Coe, John J. Kane, Tam Luong Nguyen, Leticia M. Toledo, Eric Wininger, Frank W. Fowler, and Joseph W. Lauher pp 86–93 DOI: 10.1021/ja961958q Supporting Info

Photodeoxygenation of Dibenzothiophene Sulfoxide:  Evidence for a Unimolecular S−O Cleavage Mechanism1 Daniel D. Gregory, Zehong Wan, and William S. Jenks pp 94–102 DOI: 10.1021/ja962975i

Absolute Configuration and Total Synthesis of (+)-Curacin A, an Antiproliferative Agent from the Cyanobacterium Lyngbya majuscula James D. White, Tae-Seong Kim, and Mitch Nambu pp 103–111 DOI: 10.1021/ja9629874

Naked Fluoride Ion Sources:  Synthesis, Characterization, and Coupling Reaction of 1-Methylhexamethylenetetramine Fluoride Robert Z. Gnann, Ross I. Wagner, Karl O. Christe, Robert Bau, George A. Olah, and Wiliam W. Wilson pp 112–115 DOI: 10.1021/ja963168m Supporting Info

Optically Active Amines. 41.1 Application of the Benzene Chirality Rule to Chiral Ring-Substituted Benzylcarbinamines and Benzylcarbinamine Salts Howard E. Smith and Jon R. Neergaard pp 116–124 DOI: 10.1021/ja961752p

Tandem [4 + 2]/[3 + 2] Cycloadditions of Nitroalkenes. 11. The Synthesis of (+)-Crotanecine Scott E. Denmark and Atli Thorarensen pp 125–137 DOI: 10.1021/ja963084d Supporting Info

Novel Preorganized Hemispherands To Encapsulate Rare Earth Ions:  Shielding and Ligand Deuteration for Prolonged Lifetimes of Excited Eu3+ Ions Manon P. Oude Wolbers, Frank C. J. M. van Veggel, Bianca H. M. Snellink-Ruël, Johannes W. Hofstraat, Frank A. J. Geurts, and David N. Reinhoudt pp 138–144 DOI: 10.1021/ja9609314 Supporting Info

Carboxylate-Bridged Diiron(II) Complexes:  Synthesis, Characterization, and O2-Reactivity of Models for the Reduced Diiron Centers in Methane Monooxygenase and Ribonucleotide Reductase Susanna Herold and Stephen J. Lippard pp 145–156 DOI: 10.1021/ja9628563 Supporting Info

Interplay between Oxidation State and Coordination Geometry of Metal Ions in Azurin Rogert Bauer, Eva Danielsen, Lars Hemmingsen, Morten J. Bjerrum, Örjan Hansson, and Kulwant Singh pp 157–162 DOI: 10.1021/ja962499w

Photochemical Deposition of ZnS from the Gas Phase and Simultaneous Luminescence Detection of Photofragments from a Single-Source Precursor, Zn(S2COCHMe2)2 Jinwoo Cheon, David S. Talaga, and Jeffrey I. Zink pp 163–168 DOI: 10.1021/ja9625891

Internuclear Distance Measurements up to 0.44 nm for Retinals in the Solid State with 1-D Rotational Resonance 13C MAS NMR Spectroscopy P. J. E. Verdegem, M. Helmle, J. Lugtenburg, and H. J. M. de Groot pp 169–174 DOI: 10.1021/ja961475m Supporting Info

Turn Residue Sequence Determines β-Hairpin Conformation in Designed Peptides Eva de Alba, M. Angeles Jiménez, and Manuel Rico pp 175–183 DOI: 10.1021/ja962325e Supporting Info

Proximity, Photochemical Reactivity, and Intermolecular 1H−13C Cross Polarization in Benzophenone-d10 and Cyclohexane in the Zeolite NaX Deniz Cizmeciyan, Laura B. Sonnichsen, and Miguel A. Garcia-Garibay pp 184–188 DOI: 10.1021/ja9623368

Polymeric Self-Assembled Monolayers. 4. Chemical, Electrochemical, and Thermal Stability of ω-Functionalized, Self-Assembled Diacetylenic and Polydiacetylenic Monolayers Taisun Kim, Kwok C. Chan, and Richard M. Crooks pp 189–193 DOI: 10.1021/ja9617956

Structure of Chemisorbed Sulfur on a Pt(111) Electrode Y.-E. Sung, W. Chrzanowski, A. Zolfaghari, G. Jerkiewicz, and A. Wieckowski pp 194–200 DOI: 10.1021/ja962637h Supporting Info

Covalent Modification of Carbon Surfaces by Aryl Radicals Generated from the Electrochemical Reduction of Diazonium Salts Philippe Allongue, Michel Delamar, Bernard Desbat, Olivier Fagebaume, Rachid Hitmi, Jean Pinson, and Jean-Michel Savéant pp 201–207 DOI: 10.1021/ja963354s Supporting Info

Toward Site Specificity of Oxidative Damage in Proteins:  C−H and C−C Bond Dissociation Energies and Reduction Potentials of the Radicals of Alanine, Serine, and Threonine ResiduesAn ab Initio Study A. Rauk, D. Yu, and D. A. Armstrong pp 208–217 DOI: 10.1021/ja9618210

Theoretical Study of the Electronic Spectrum of Plastocyanin Kristine Pierloot, Jan O. A. De Kerpel, Ulf Ryde, and Björn O. Roos pp 218–226 DOI: 10.1021/ja962381f

Transition State Looseness and α-Secondary Kinetic Isotope Effects Sanne Schrøder Glad and Frank Jensen pp 227–232 DOI: 10.1021/ja962733i Supporting Info

The Sila-Wittig Rearrangement Atsushi Kawachi, Noriyuki Doi, and Kohei Tamao pp 233–234 DOI: 10.1021/ja9630957 Supporting Info

The First Raman Spectrum of an Organic Monolayer on a High-Temperature Superconductor:  Direct Spectroscopic Evidence for a Chemical Interaction between an Amine and YBa2Cu3O7-δ Jin Zhu, Feng Xu, Susan J. Schofer, and Chad A. Mirkin pp 235–236 DOI: 10.1021/ja962556l

Cubyl Anion Formation and an Experimental Determination of the Acidity and C−H Bond Dissociation Energy of Cubane Michael Hare, Todd Emrick, Philip E. Eaton, and Steven R. Kass pp 237–238 DOI: 10.1021/ja9627858 Supporting Info

Photophysical Evidence That Δ- and Λ-[Ru(phen)2(dppz)]2+ Intercalate DNA from the Minor Groove Eimer Tuite, Per Lincoln, and Bengt Nordén pp 239–240 DOI: 10.1021/ja961857s

Relaxation Time of Confined Aqueous Films under Shear Ali Dhinojwala and Steve Granick pp 241–242 DOI: 10.1021/ja9632318

Mechanism of Reaction of Reduced Polyoxometalates with O2 Evaluated by 17O NMR Dean C. Duncan and Craig L. Hill pp 243–244 DOI: 10.1021/ja9627860 Supporting Info

A Novel Substitution Process for the Preparation of Alkoxy-, Aryloxy-, and Acyloxy-Substituted 1,2-Dioxetanes Hashem Akhavan-Tafti, Robert A. Eickholt, Zahra Arghavani, and A. Paul Schaap pp 245–246 DOI: 10.1021/ja962245a Supporting Info

Pyridine CN Bond Cleavage Mediated by (silox)3Nb (silox = tBu3SiO) Troy S. Kleckley, Jordan L. Bennett, Peter T. Wolczanski, and Emil B. Lobkovsky pp 247–248 DOI: 10.1021/ja9631312 Supporting Info

Nucleotide C3‘,4‘-Radical Cations and the Effect of a 2‘-Oxygen Substituent. The DNA/RNA Paradox David Crich and Xue-Sheng Mo pp 249–250 DOI: 10.1021/ja963411h Supporting Info

Energy and Angle-Resolved Uptake of Organic Molecules in Concentrated Sulfuric Acid Kathleen M. Fiehrer and Gilbert M. Nathanson pp 251–252 DOI: 10.1021/ja9629120

Definitive Evidence of Diffusing Radicals in Grignard Reagent Formation John F. Garst, Ferenc Ungváry, and James T. Baxter pp 253–254 DOI: 10.1021/ja963208m

Handbook of Advanced Materials Testing Edited by Nicholas P. Cheremisinoff (National Association of Safety & Health Professionals) and Paul N. Cheremisinoff (New Jersey Institute of Technology). Marcel Dekker:  New York. 1994. xii + 1024 pp. $195.00. ISBN 0-8247-9196-7. G. Graham Allan p 255 DOI: 10.1021/ja955112i

Advances in Biosensors. Volume 3. Biosensors:  A Russian Perspective Edited by Anthony P. F. Turner (Cranfield Biotechnology Centre) and Yu. M. Yevdokimov (W. A. Engelhardt Institute of Molecular Biology). Jai Press:  Greenwich, CT. 1995. xv + 216 pp. $97.50. ISBN 1-55938-535-9. Mark. A. Arnold p 255 DOI: 10.1021/ja965561y

Metallomesogens:  Synthesis, Properties and Applications Edited by José Louis Serrano (University of Zaragoza). VCH:  New York. 1996. xxii + 498 pp. $210.00. ISBN 3-527-29296-9. Malcolm H. Chisholm pp 255–256 DOI: 10.1021/ja965594d

Modern Aspects of Electrochemistry, No. 28 Edited by B. E. Conway (University of Ottawa), J. O'M. Bockris (Texas A&M University), and Ralph E. White (University of South Carolina). Plenum Press:  New York. 1996. xii + 404 pp. $95.00. ISBN 0-306-45146-8. Stephen E. Creager p 256 DOI: 10.1021/ja965644e

Techniques in Analytical Chemistry. Supercritical Fluid Extraction By Larry T. Taylor (Virginia Tech). Wiley:  New York. 1996. xiv + 181 pp. $49.95. ISBN 0-471-11990-3. Michael J. Drews pp 256–257 DOI: 10.1021/ja9655855

Metal Complexes in Aqueous Solutions. Modern Inorganic Chemistry Series By Arthur E. Martell (Texas A&M University) and Robert D. Hancock (IBC Advanced Technologies). Plenum:  New York. 1996. x + 253 pp. $59.50. ISBN 0-306-45248-0. Frederick T. Greenaway p 257 DOI: 10.1021/ja9656715

Trace Analysis:  A Structured Approach to Obtaining Reliable Results Edited by E. Pritchard, G. M. MacKay, and J. Points (Laboratory of the Government Chemist, U.K.). Royal Society of Chemistry:  Cambridge. xiii + 404 pp. $125.00. ISBN 0-85404-417-5. Barbara B. Kebbekus pp 257–258 DOI: 10.1021/ja965685a

Laser-Enhanced Ionization Spectrometry Edited by John C. Travis and Gregory C. Turk (National Institute of Standards and Technology). Wiley:  New York. 1996. xxi + 334 pp. $79.95. ISBN 0-471-5768-4-0. Vahid Majidi p 258 DOI: 10.1021/ja9656661

Biological Structure and Dynamics, 2 volume set Edited by Ramaswany H. Sarma and Mukti H. Sarma (State University of New York at Albany). Adenine Press:  Schenectady, NY. 1996. 370 pp. $250.00. ISBN 0-940030-46-2. p 258 DOI: 10.1021/ja965737w

Issue 02

Stabilization of Self-Assembled Monolayers of Carboxylic Acids on Native Oxides of Metals Yael G. Aronoff, Bo Chen, Gang Lu, Carwai Seto, Jeffrey Schwartz, and Steven L. Bernasek pp 259–262 DOI: 10.1021/ja953848+ Supporting Info

Stable Triple-Helical DNA Complexes Formed by Benzopyridoindole− and Benzopyridoquinoxaline− Oligonucleotide Conjugates Gail C. Silver, Jian-Sheng Sun, Chi Hung Nguyen, Alexandre S. Boutorine, Emile Bisagni, and Claude Hélène pp 263–268 DOI: 10.1021/ja961304h

Photoinduced Electron Transfer between Cytochrome c Peroxidase (D37K) and Zn-Substituted Cytochrome c:  Probing the Two-Domain Binding and Reactivity of the Peroxidase Jian S. Zhou, Suong T. Tran, George McLendon, and Brian M. Hoffman pp 269–277 DOI: 10.1021/ja962399q

Investigations of an Antibody Ligase David B. Smithrud, Patricia A. Benkovic, Stephen J. Benkovic, Carol M. Taylor, Kraig M. Yager, Jason Witherington, Barton W. Philips, Paul A. Sprengeler, Amos B. Smith, III, and Ralph Hirschmann pp 278–282 DOI: 10.1021/ja963167u Supporting Info

Induction of Liquid Crystallinity by Host−Guest Interactions Johanna L. M. van Nunen, Brigitte F. B. Folmer, and Roeland J. M. Nolte pp 283–291 DOI: 10.1021/ja9603113

Autopoietic Self-Reproduction of Chiral Fatty Acid Vesicles Kenichi Morigaki, Sabrina Dallavalle, Peter Walde, Stefano Colonna, and Pier Luigi Luisi pp 292–301 DOI: 10.1021/ja961728b

The Slipping Approach to Self-Assembling [n]Rotaxanes Masumi Asakawa, Peter R. Ashton, Roberto Ballardini, Vincenzo Balzani, Martin Bělohradský, Maria Teresa Gandolfi, Oldrich Kocian, Luca Prodi, Françisco M. Raymo, J. Fraser Stoddart, and Margherita Venturi pp 302–310 DOI: 10.1021/ja961817o Supporting Info

Total Synthesis of (+)-Duocarmycin A, epi-(+)-Duocarmycin A and Their Unnatural Enantiomers:  Assessment of Chemical and Biological Properties Dale L. Boger, Jeffrey A. McKie, Takahide Nishi, and Tsuyoshi Ogiku pp 311–325 DOI: 10.1021/ja962431g Supporting Info

Molecular Crystal Structure and Electron Density Distribution in the Crystal of Pentaethyl-1,5-dicarba-closo-pentaborane [C2B3(Et)5] at 120 K Mikhael Antipin, Roland Boese, Dieter Bläser, and Andreas Maulitz pp 326–333 DOI: 10.1021/ja961884i Supporting Info

Kinetic Studies of Reactions of Dioxygen with Carboxylate-Bridged Diiron(II) Complexes Leading to the Formation of (μ-Oxo)diiron(III) Complexes Andrew L. Feig, Axel Masschelein, Andreja Bakac, and Stephen J. Lippard pp 334–342 DOI: 10.1021/ja962814e Supporting Info

Synthesis, Structural Characterization, and Reactivity of Zirconium Complexes Containing Trimethylenemethane-Based Ligands George Rodriguez and Guillermo C. Bazan pp 343–352 DOI: 10.1021/ja962545s Supporting Info

Intrinsic Contributions to Chiral Recognition:  Discrimination Between Enantiomeric Amines by Dimethyldiketopyridino-18-crown-6 in the Gas Phase David V. Dearden, Chadin Dejsupa, Yongjiang Liang, Jerald S. Bradshaw, and Reed M. Izatt pp 353–359 DOI: 10.1021/ja962400l

An ab Initio MO Study on the Transformation of Acetylene to Vinylidene in the Coordination Sphere of Rhodium(I). The Intra- and Intermolecular Proton Transfer Mechanism Yasuo Wakatsuki, Nobuaki Koga, Helmut Werner, and Keiji Morokuma pp 360–366 DOI: 10.1021/ja962732q

A Density Functional Study of the Mechanism of the Diimine−Nickel-Catalyzed Ethylene Polymerization Reaction Djamaladdin G. Musaev, Robert D. J. Froese, Mats Svensson, and Keiji Morokuma pp 367–374 DOI: 10.1021/ja9628314

Non-Kramers ESEEM of Integer-Spin Diferrous Carboxylate-Bridged Clusters in Proteins Bradley E. Sturgeon, Peter E. Doan, Katherine E. Liu, Doug Burdi, Wing H. Tong, Judith M. Nocek, Nishi Gupta, JoAnne Stubbe, Donald M. Kurtz, Jr., Stephen J. Lippard, and Brian M. Hoffman pp 375–386 DOI: 10.1021/ja9628157

Ligand Field Circular Dichroism and Magnetic Circular Dichroism Studies of Component B and Substrate Binding to the Hydroxylase Component of Methane Monooxygenase Sabine Coates Pulver, Wayne A. Froland, John D. Lipscomb, and Edward I. Solomon pp 387–395 DOI: 10.1021/ja962854i

Carbon-13 Chemical Shift Tensors for Acylium Ions:  A Combined Solid State NMR and Ab Initio Molecular Orbital Study Teng Xu, Dewey H. Barich, Paul D. Torres, John B. Nicholas, and James F. Haw pp 396–405 DOI: 10.1021/ja962944n Supporting Info

Benzenium Ion Chemistry on Solid Metal Halide Superacids:  In Situ 13C NMR Experiments and Theoretical Calculations Teng Xu, Dewey H. Barich, Paul D. Torres, and James F. Haw pp 406–414 DOI: 10.1021/ja963082t

Characterization of the Strongly Coupled, Low-Frequency Vibrational Modes of the Special Pair of Photosynthetic Reaction Centers via Isotopic Labeling of the Cofactors Kazimierz Czarnecki, James R. Diers, Veeradej Chynwat, Joy P. Erickson, Harry A. Frank, and David F. Bocian pp 415–426 DOI: 10.1021/ja963281c

Formation of BH6+ in the Gas Phase Charles H. DePuy, Roustam Gareyev, Joseph Hankin, and Gustavo E. DavicoRobert Damrauer pp 427–428 DOI: 10.1021/ja963399t

Electronic Spectrum of Propadienylidene (H2CCC:) John F. StantonJeffrey T. DePinto, Randal A. Seburg, Jonathan A. Hodges, and Robert J. McMahon pp 429–430 DOI: 10.1021/ja961900b Supporting Info

Bond-Coupled Electron Transfer Processes:  A New Strategy for High-Efficiency Photoinduced Electron Transfer Reactions S. B. Karki, J. P. Dinnocenzo, S. Farid, J. L. Goodman, I. R. Gould, and T. A. Zona pp 431–432 DOI: 10.1021/ja962291a

Protein Molecular Mass to 1 Da by 13C, 15N Double-Depletion and FT-ICR Mass Spectrometry Alan G. Marshall, Michael W. Senko, Weiqun Li, Ming Li, Stephanie Dillon, Shenheng Guan, and Timothy M. Logan pp 433–434 DOI: 10.1021/ja9630046

Intramolecular Electron Transfer Kinetics of a Synthetic Flavocytochrome c Mark B. Twitchett, Juan C. Ferrer, Prabha Siddarth, and A. Grant Mauk pp 435–436 DOI: 10.1021/ja963086y

The Voltammetry of Sc3@C82 Mark R. Anderson, Harry C. Dorn, Steven Stevenson, Paul M. Burbank, and James R. Gibson pp 437–438 DOI: 10.1021/ja962963x

Modeling of the Chemistry of Quinoprotein Methanol Dehydrogenase. Oxidation of Methanol by Calcium Complex of Coenzyme PQQ via Addition−Elimination Mechanism Shinobu Itoh, Hirokatsu Kawakami, and Shunichi Fukuzumi pp 439–440 DOI: 10.1021/ja963366d Supporting Info

Novel Cyclic Biphenyl Ether Peptide β-Strand Mimetics and HIV-Protease Inhibitors James W. Janetka, Prakash Raman, Ken Satyshur, George R. Flentke, and Daniel H. Rich pp 441–442 DOI: 10.1021/ja963495u Supporting Info

Enantioselective Epoxidation of ω-Bromo-2-methyl-1-alkenes Catalyzed by Chloroperoxidase. Effect of Chain Length on Selectivity and Efficiency Frederick J. Lakner, Kevin P. Cain, and Lowell P. Hager pp 443–444 DOI: 10.1021/ja962998x Supporting Info

A New and Practical Synthesis of α-Amino Acids from Alkenyl Boronic Acids Nicos A. Petasis and Ilia A. Zavialov pp 445–446 DOI: 10.1021/ja963178n Supporting Info

A Computational Strategy for the Design of Regiospecific Syntheses of Fullerene Derivatives Simon H. Friedman and George L. Kenyon pp 447–448 DOI: 10.1021/ja963041x

A General and Highly Efficient Solid Phase Synthesis of Oligosaccharides. Total Synthesis of a Heptasaccharide Phytoalexin Elicitor (HPE) K. C. Nicolaou, Nicolas Winssinger, Joaquín Pastor, and Frederik DeRoose pp 449–450 DOI: 10.1021/ja963482g Supporting Info

Polycatenated Two-Dimensional Polyrotaxane Net Dongmok Whang and Kimoon Kim pp 451–452 DOI: 10.1021/ja963096z Supporting Info

Advances in Photochemistry. Volume 21 Edited by Douglas C. Neckers (Bowling Green State University), David H. Volman (University of California-Davis), and Günther von Bünau (Universität Siegen, FRG). Wiley:  New York. 1996. ix + 309 pp. $95.00. ISBN 0-471-14332-4. Christopher J. Abelt p 453 DOI: 10.1021/ja965664g

Chemical Applications of Density-Functional Theory Edited by Brian B. Laird (University of Kansas), Richard B. Ross (PPG), and Tom Ziegler (University of Calgary). ACS:  Washington, DC. 1996. x + 478 pp. $126.95. ISBN 0-8412-3403-5. p 453 DOI: 10.1021/ja965743s

Unimolecular Reactions, 2nd Edition By Kenneth A. Holbrook (University of Hull) and Michael J. Pilling and Struan H. Robertson (University of Leeds). John Wiley & Sons:  New York. 1996. xv + 417 pp. $165.00. ISBN 0-471-92268-4. Tomas Baer pp 453–454 DOI: 10.1021/ja965697w

Mechanisms of Metallocenter Assembly Edited by Robert P. Hausinger (Michigan State University), Gunther L. Eichhorn (National Institute on Aging), and Luigi G. Marzilli (Emory University). VCH:  New York. 1995. xiv + 267 pp. $115.00. ISBN 1-56081-920-0. Lance C. Seefeldt p 454 DOI: 10.1021/ja965505x

Metals and Ligand Reactivity:  An Introduction to the Organic Chemistry of Metal Complexes By Edwin C. Constable (University of Basel, Switzerland). VCH:  New York. 1996. xiv + 308 pp. $45.00 ISBN 3-527-29277-2. Michael D. Jensen p 454 DOI: 10.1021/ja9655810

Issue 03

A General Method for Constraining Short Peptides to an α-Helical Conformation J. Christopher Phelan, Nicholas J. Skelton, Andrew C. Braisted, and Robert S. McDowell pp 455–460 DOI: 10.1021/ja9611654 Supporting Info

Short-Lived 1,5-Biradicals Formed from Triplet 1-Alkoxy- and 1-(Benzyloxy)-9,10-anthraquinones Robert P. Smart, Timothy J. Peelen, Ronald L. Blankespoor, and Donald L. Ward pp 461–465 DOI: 10.1021/ja962633c Supporting Info

Direct Detection and Characterization of a Transient 1-Silaallene Derivative in Solution Corinna Kerst, Cerrie W. Rogers, Ralph Ruffolo, and William J. Leigh pp 466–471 DOI: 10.1021/ja962591s

Optically Active (E,Z)-1,3-Cyclooctadiene:  First Enantioselective Synthesis through Asymmetric Photosensitization and Chiroptical Property Yoshihisa Inoue, Hiroshi Tsuneishi, Tadao Hakushi, and Akira Tai pp 472–478 DOI: 10.1021/ja963160c

Diastereoselectivity of Enolate Anion Protonation. H/D Exchange of β-Substituted Ethyl Butanoates in Ethanol-d Jerry R. Mohrig, Robert E. Rosenberg, John W. Apostol, Mark Bastienaansen, Jordan W. Evans, Sonya J. Franklin, C. Daniel Frisbie, Sabrina S. Fu, Michelle L. Hamm, Christopher B. Hirose, David A. Hunstad, Thomas L. James, Randall W. King, Christopher J. Larson, Hallie A. Latham, David A. Owen, Karin A. Stein, and Ronald Warnet pp 479–486 DOI: 10.1021/ja962631s

Diastereoselectivity of Enolate Anion Protonation. Reaction of HCN with the Enolate of 3-Fluorobutanoic Acid. An ab Initio Molecular Orbital Study Robert E. Rosenberg and Jerry R. Mohrig pp 487–492 DOI: 10.1021/ja962632k Supporting Info

Cocrystallized Mixtures and Multiple Geometries:  Syntheses, Structures, and NMR Spectroscopy of the Re6 Clusters [NMe4]4[Re6(Te8-nSen)(CN)6] (n = 0−8) Yuri V. Mironov, Jason A. Cody, Thomas E. Albrecht-Schmitt, and James A. Ibers pp 493–498 DOI: 10.1021/ja962264k Supporting Info

Functional Self-Assembly of Hydrogen-Bonded Networks. Construction of Aromatic Stacks and Columns and Cavity-Size Control via Flexible Intercalation of 1D Chains Having Orthogonal Aromatic Substituents Ken Endo, Takayoshi Ezuhara, Masayuki Koyanagi, Hideki Masuda, and Yasuhiro Aoyama pp 499–505 DOI: 10.1021/ja960292x Supporting Info

Conformational Analysis of Some trans-4,5-Diaryl-1,3-dioxolanes by CD Spectroscopy and Induction of Cholesteric Mesophases in Nematic Solvents:  A Correlation between Twisting Power and Structure of the Dopant Carlo Rosini, Gian Piero Spada, Gloria Proni, Stefano Masiero, and Simone Scamuzzi pp 506–512 DOI: 10.1021/ja962445m

Two Closely Related Structure Types with Unprecedented Bioctahedral Rare-Earth-Metal Clusters Centered by Transition Metals:  A2R10I17Z2 (A = Rb, Cs; R = La, Ce, Pr; Z = Co, Ni, Ru, Os) and La10I15Os2 Michael Lulei, James D. Martin, Laura M. Hoistad, and John D. Corbett pp 513–520 DOI: 10.1021/ja9630607 Supporting Info

Oxidation of Coordinated Ammonia to Nitrosyl in the Reaction of Aqueous Chlorine with cis-[Ru(bpy)2(NH3)2]2+ Zerihun Assefa and David M. Stanbury pp 521–530 DOI: 10.1021/ja9633629

Quasi-Unidimensional {[M(dmb)2]Y}n Organometallic Polymers (M = Cu(I), Ag(I); dmb = 1,8-Diisocyano-p-menthane; Y = BF4-, PF6-, NO3-, ClO4-, CH3CO2-).1a Structural, Calorimetric, and Luminescence Properties Daniel Fortin, Marc Drouin, Martin Turcotte, and Pierre D. Harvey pp 531–541 DOI: 10.1021/ja9600845 Supporting Info

Heavy-Atom Isotope Effects on Reactions of Co(III)-Bound p-Nitrophenyl Phosphate:  Nucleophilic Displacements of p-Nitrophenol and Dissociation of p-Nitrophenyl Phosphate Jill Rawlings, Alvan C. Hengge, and W. W. Cleland pp 542–549 DOI: 10.1021/ja962448z

Electrochemically Controlling Ligand Binding Affinity for Transition Metals via RHLs:  The Importance of Electrostatic Effects Alan M. Allgeier, Caroline S. Slone, Chad A. Mirkin, Louise M. Liable-Sands, Glenn P. A. Yap, and Arnold L. Rheingold pp 550–559 DOI: 10.1021/ja963008a Supporting Info

Molecular Orientation Distributions in Protein Films. 1. Cytochrome c Adsorbed to Substrates of Variable Surface Chemistry Paul L. Edmiston, John E. Lee, Shih-Song Cheng, and S. Scott Saavedra pp 560–570 DOI: 10.1021/ja962366a Supporting Info

Molecular Orientation Distributions in Protein Films. 2. Site-Directed Immobilization of Yeast Cytochrome c on Thiol-Capped, Self-Assembled Monolayers Laurie L. Wood, Shih-Song Cheng, Paul L. Edmiston, and S. Scott Saavedra pp 571–576 DOI: 10.1021/ja9623673

Temperature Dependence of the Rate Constants and Branching Ratios for the Reactions of Cl-(D2O)1-3 with CH3Br and Thermal Dissociation Rates for Cl-(CH3Br) John V. Seeley, Robert A. Morris, A. A. Viggiano, Haobin Wang, and William L. Hase pp 577–584 DOI: 10.1021/ja960872u

Quantitative Assessment by 1D-EXSY NMR of Stereoelectronic Control in Acid-Catalyzed Exchange between Stereoisomeric 2-Methoxy-1,3-dioxanes and Methanol Charles L. Perrin and Richard E. Engler pp 585–591 DOI: 10.1021/ja962808i

Two-Photon Laser-Induced Reaction of 1,8-Bis(halomethyl)naphthalenes from Different Excited States and Transient Targeting of Its Intermediate by Time-Delayed, Two-Color Photolysis and Argon Ion Laser-Jet Photolysis Techniques Akihiko Ouchi, Yoshinori Koga, and Waldemar Adam pp 592–599 DOI: 10.1021/ja962884l Supporting Info

Explanation of Where and How Enantioselective Binding Takes Place on Permethylated β-Cyclodextrin, a Chiral Stationary Phase Used in Gas Chromatography Kenny B. Lipkowitz, Greg Pearl, Bob Coner, and Michael A. Peterson pp 600–610 DOI: 10.1021/ja963076x

Highly Regioselective Alkylation at the More-Hindered α-Site of Unsymmetrical Ketones by the Combined Use of Aluminum Tris(2,6-diphenylphenoxide) and Lithium Diisopropylamide Susumu Saito, Masahiro Ito, and Hisashi Yamamoto pp 611–612 DOI: 10.1021/ja963274o Supporting Info

Influence of Copper−Sulfur Covalency and Copper−Copper Bonding on Valence Delocalization and Electron Transfer in the CuA Site of Cytochrome c Oxidase Kendra Rose Williams, Daniel R. Gamelin, Louis B. LaCroix, Robert P. Houser, William B. Tolman, Ton C. Mulder, Simon de Vries, Britt Hedman, Keith O. Hodgson, and Edward I. Solomon pp 613–614 DOI: 10.1021/ja963225b

8,11-Dichloro-N-tosyl-3-aza[5]metacyclophane:  A Highly Strained Aromatic System Daniël S. van Es, Arne Egberts, Stephen Nkrumah, Hans de Nijs, Willem H. de Wolf, and Friedrich BickelhauptNora Veldman and Anthony L. Spek pp 615–616 DOI: 10.1021/ja9634987 Supporting Info

How Easily Oxidizable Is DNA? One-Electron Reduction Potentials of Adenosine and Guanosine Radicals in Aqueous Solution Steen Steenken and Slobodan V. Jovanovic pp 617–618 DOI: 10.1021/ja962255b

A New Route to Chiral Diaryldiacetylenic Liquid Crystals. Preparation of Iodonium Salts Bearing Chiral Alkynyl Ligands and Utility for Chiral Alkynyl Transfer Agents Tsugio Kitamura, Chi Han Lee, Yuki Taniguchi, and Yuzo FujiwaraMasaru Matsumoto and Youichi Sano pp 619–620 DOI: 10.1021/ja963203p Supporting Info

Carotenoids Enhance Vitamin E Antioxidant Efficiency Fritz Böhm, Ruth Edge, Edward J. Land, David J. McGarvey, and T. George Truscott pp 621–622 DOI: 10.1021/ja962512c

Synthesis of Highly Functionalized Diquinanes by the Regio- and Stereoselective Cleavage of Homo-Diels−Alder Cycloadducts Mark Lautens, William Tam, and James Blackwell pp 623–624 DOI: 10.1021/ja962223o Supporting Info

Trinuclear Ruthenium Complex with a Face-Capping Benzene Ligand. Hapticity Change Induced by Two-Electron Redox Reaction Akiko Inagaki, Yoshiaki Takaya, Toshifumi Takemori, and Hiroharu SuzukiMasako TanakaMasa-aki Haga pp 625–626 DOI: 10.1021/ja963338v Supporting Info

Determination of the 31P−27Al J-Coupling Constant for Trimethylphosphine Bound to the Lewis Acid Site of Zeolite HY Hsien-Ming Kao and Clare P. Grey pp 627–628 DOI: 10.1021/ja962037i

Covalent Modification of N3 of Guanine by (+)-CC-1065 Results in Protonation of the Cross-Strand Cytosine Hyun-Ju Park and Laurence H. Hurley pp 629–630 DOI: 10.1021/ja9632264 Supporting Info

A Unique Nido Exo-Arachno Equilibrium Involving [(PPh3)2(CO)OsB5H9] and Its Base Adducts:  Crystal and Molecular Structure of [{(PPh3)2(CO)OsB4H7}(BH2·PPh2Me)] Lawrence Barton, Jonathan Bould, Hong Fang, Kevin Hupp, Nigam P. Rath, and Charles Gloeckner pp 631–632 DOI: 10.1021/ja962192x Supporting Info

Self-Assembly and Disassembly of Regioregular, Water Soluble Polythiophenes:  Chemoselective Ionchromatic Sensing in Water Richard D. McCullough, Paul C. Ewbank, and Robert S. Loewe pp 633–634 DOI: 10.1021/ja963713j Supporting Info

Issue 04

Rational Design and Engineered Biosynthesis of a Novel 18-Carbon Aromatic Polyketide Peter J. Kramer, Robert J. X. Zawada, Robert McDaniel, C. Richard Hutchinson, David A. Hopwood, and Chaitan Khosla pp 635–639 DOI: 10.1021/ja962888q

Design and Synthesis of Molecular Umbrellas Vaclav Janout, Marion Lanier, and Steven L. Regen pp 640–647 DOI: 10.1021/ja962405i Supporting Info

Mechanism of Nucleophilic Aromatic Substitution of 1-Chloro-2,4-dinitrobenzene by Glutathione in the Gas Phase and in Solution. Implications for the Mode of Action of Glutathione S-Transferases Ya-Jun Zheng and Rick L. Ornstein pp 648–655 DOI: 10.1021/ja963177v

Highly Practical Methodology for the Synthesis of d- and l-α-Amino Acids, N-Protected α-Amino Acids, and N-Methyl-α-amino Acids Andrew G. Myers, James L. Gleason, Taeyoung Yoon, and Daniel W. Kung pp 656–673 DOI: 10.1021/ja9624073 Supporting Info

Controlled/“Living” Radical Polymerization. Kinetics of the Homogeneous Atom Transfer Radical Polymerization of Styrene Krzysztof Matyjaszewski, Timothy E. Patten, and Jianhui Xia pp 674–680 DOI: 10.1021/ja963361g

Influenza Neuraminidase Inhibitors Possessing a Novel Hydrophobic Interaction in the Enzyme Active Site:  Design, Synthesis, and Structural Analysis of Carbocyclic Sialic Acid Analogues with Potent Anti-Influenza Activity Choung U. Kim, Willard Lew, Matthew A. Williams, Hongtao Liu, Lijun Zhang, S. Swaminathan, Norbert Bischofberger, Ming S. Chen, Dirk B. Mendel, Chun Y. Tai, W. Graeme Laver, and Raymond C. Stevens pp 681–690 DOI: 10.1021/ja963036t

Reactions of Aryl Phenylacetates with Secondary Amines in MeCN. Structure−Reactivity Relationship in the Ketene-Forming Eliminations and Concurrent E2 and E1cb Mechanisms Bong Rae Cho, Yong Kwan Kim, and Choon-Ock Maing Yoon pp 691–697 DOI: 10.1021/ja961294k Supporting Info

Palladium-Catalyzed Additions of Terminal Alkynes to Acceptor Alkynes Barry M. Trost, Mark T. Sorum, Chuen Chan,Arthur E. Harms, and Gerd Rühter pp 698–708 DOI: 10.1021/ja9624937

Modeling Photochemical [4 + 4] Cycloadditions:  Conical Intersections Located with CASSCF for Butadiene + Butadiene Michael J. Bearpark, Merce Deumal, Michael A. Robb, Thom Vreven, Naoko Yamamoto, Massimo Olivucci, and Fernando Bernardi pp 709–718 DOI: 10.1021/ja962576n

Type I and Type II Photosensitized Oxidative Modification of 2‘-Deoxyguanosine (dGuo) by Triplet-Excited Ketones Generated Thermally from the 1,2-Dioxetane HTMD Waldemar Adam, Chantu R. Saha-Möller, and André Schönberger pp 719–723 DOI: 10.1021/ja9629827 Supporting Info

Synthesis and Solid State Chemistry of CH3BiI2:  A Structure with an Extended One-Dimensional Organometallic Framework Shumin Wang, David B. Mitzi, Gregory A. Landrum, Hugh Genin, and Roald Hoffmann pp 724–732 DOI: 10.1021/ja961753h Supporting Info

Investigation by EPR and ENDOR Spectroscopy of the Nickel(I) Form of Cofactor F4301 of Methanobacterium thermoautotrophicum and of Nickel(I) Octaethylisobacteriochlorin Joshua Telser, Yang-Cheng Fann, Mark W. Renner, Jack Fajer, Shengke Wang, Hui Zhang, Robert A. Scott, and Brian M. Hoffman pp 733–743 DOI: 10.1021/ja9625337 Supporting Info

Stabilities and Structures of Metal Ion Complexes of Adenosine 5‘-O-Thiomonophosphate (AMPS2-) in Comparison with Those of Its Parent Nucleotide (AMP2-) in Aqueous Solution Roland K. O. Sigel, Bin Song, and Helmut Sigel pp 744–755 DOI: 10.1021/ja962970l

High Yield Synthesis and Characterization of Sn6(μ3-O)4(μ3-OSiMe3)4:  A Novel Main Group Cluster for the Support of Multiple Transition Metal Centers Lawrence R. Sita, Rimo Xi, Glenn P. A. Yap, Louise M. Liable-Sands, and Arnold L. Rheingold pp 756–760 DOI: 10.1021/ja963450t Supporting Info

Host−Guest Interactions in Pure-Silica and Aluminosilicate Sodalites Containing Ethylene Glycol as a Guest Molecule Suk Bong Hong, Miguel A. Camblor, and Mark E. Davis pp 761–770 DOI: 10.1021/ja961036n

On the Structure, Electrochemistry, and Spectroscopy of the (N,N‘-Bis(2‘-(dimethylamino)ethyl)-N,N‘-dimethylpropane-1,3- diamine)copper(II) Ion Paul V. Bernhardt pp 771–774 DOI: 10.1021/ja961764a Supporting Info

Consanguineous Families of Coordinated Carbon:  A ReC4Re Assembly That Is Isolable in Three Oxidation States, Including Crystallographically Characterized ReCCCCRe and +ReCCCCRe+ Adducts and a Radical Cation in Which Charge Is Delocalized between Rhenium Termini Monika Brady, Weiqing Weng, Yuanlin Zhou, Jeffery W. Seyler, Angelo J. Amoroso, Atta M. Arif, Marlis Böhme, Gernot Frenking, and J. A. Gladysz pp 775–788 DOI: 10.1021/ja9631817 Supporting Info

Synthesis and EPR Studies of Radicals and Biradical Anions of C60 Nitroxide Derivatives Francesca Arena, Federico Bullo, Fosca Conti, Carlo Corvaja, Michele Maggini, Maurizio Prato, and Gianfranco Scorrano pp 789–795 DOI: 10.1021/ja9626291

Dipolar Recoupling in MAS NMR:  A Probe for Segmental Order in Lipid Bilayers John D. Gross, Dror E. Warschawski, and Robert G. Griffin pp 796–802 DOI: 10.1021/ja962951b

Anomeric Effects in Bis(fluorooxy)difluoromethane Karina I. Gobbato, Hans-Georg Mack, Heinz Oberhammer, and Carlos O. Della Védova pp 803–806 DOI: 10.1021/ja963106w

Novel Aspects of the [1,3] Sigmatropic Silyl Shift in Allylsilane Tokio Yamabe, Koichi Nakamura, Yoshihito Shiota, Kazunari Yoshizawa, Susumu Kawauchi, and Mitsuo Ishikawa pp 807–815 DOI: 10.1021/ja9623525

Structural and Solvent Effects on the Mechanism of the Thermal Decarboxylation of 2-Oxetanones. A Limiting Case between Concerted and Stepwise Pathways in Pericyclic Reactions Iñaki Morao, Begoña Lecea, Ana Arrieta, and Fernando P. Cossío pp 816–825 DOI: 10.1021/ja962810+ Supporting Info

Conformational Transmission of Chirality:  The Origin of 1,4-Asymmetric Induction in Michael Reactions of Chiral Imines Melissa J. Lucero and K. N. Houk pp 826–827 DOI: 10.1021/ja962819b

Stepwise Synthesis of (CCH2CH2C), (CCHCHC), and (CCCC) Bridges between Molybdenum or Tungsten Centers B. E. Woodworth, P. S. White, and J. L. Templeton pp 828–829 DOI: 10.1021/ja963662q Supporting Info

Exciton Interactions in Nonconjugated Squaraine Dimers. Mechanisms for Coupling and Consequences for Photophysics and Photochemistry Kangning Liang, Mohammad S. Farahat, Jerry Perlstein, Kock-Yee Law, and David G. Whitten pp 830–831 DOI: 10.1021/ja962091z Supporting Info

The Structure of DNA−Liposome Complexes Danilo D. Lasic, Helmut Strey, Mark C. A. Stuart, Rudolf Podgornik, and Peter M. Frederik pp 832–833 DOI: 10.1021/ja962713g

Loss of Cubic Symmetry in Low-Temperature Na2RbC60 Kosmas Prassides, Konstantinos Vavekis, Konstantinos Kordatos, Katsumi Tanigaki, Götz M. Bendele, and Peter W. Stephens pp 834–835 DOI: 10.1021/ja9634076

A Ru-Catalyzed Three-Component Addition To Form 1,5-Diketones Barry M. Trost, Moshe Portnoy, and Hideki Kurihara pp 836–837 DOI: 10.1021/ja963460u Supporting Info

A de Novo Designed Protein with Properties That Characterize Natural Hyperthermophilic Proteins Xin Jiang, Edmund J. Bishop, and Ramy S. Farid pp 838–839 DOI: 10.1021/ja963319l Supporting Info

Catalytic Dehydrogenation of Cycloalkanes to Arenes by a Dihydrido Iridium P−C−P Pincer Complex Mukta Gupta, Chrystel Hagen, William C. Kaska, Roger E. Cramer, and Craig M. Jensen pp 840–841 DOI: 10.1021/ja962560x Supporting Info

Homolytic C−S Bond Cleavage on a Heterogeneous Co/Mo/S Hydrodesulfurization Catalyst Keenan E. Dungey and M. David Curtis pp 842–843 DOI: 10.1021/ja962941a Supporting Info

Stepwise Synthesis of Substituted Oligo(phenylenevinylene) via an Orthogonal Approach Todd Maddux, Wenjie Li, and Luping Yu pp 844–845 DOI: 10.1021/ja9629928 Supporting Info

Enantiotopic Differentiation of pro-R or pro-S Chlorides in (Dichloromethyl)borates by Chiral Lewis Acids:  Enantioselective Synthesis of (α-Chloroalkyl)boronates Prabhakar K. Jadhav and Hon-Wah Man pp 846–847 DOI: 10.1021/ja9635185

C−H Activation at Cationic Platinum(II) Centers Matthew W. Holtcamp, Jay A. Labinger, and John E. Bercaw pp 848–849 DOI: 10.1021/ja9620595

Novel Binding Mode of Hydroxamate Inhibitors to Human Carbonic Anhydrase II Laura R. Scolnick, Adrienne M. Clements, John Liao, Lori Crenshaw, Mark Hellberg, Jesse May, Tom R. Dean, and David W. Christianson pp 850–851 DOI: 10.1021/ja963832z

Stereochemically-Defined Supramolecular Architectures:  Diastereomerically-Pure Multi-RuII Complexes Dimitrios Tzalis and Yitzhak Tor pp 852–853 DOI: 10.1021/ja963760b Supporting Info

Biomimetic Materials Chemistry Edited by Stephen Mann (University of Bath). VCH:  New York. 1996. xxi + 383 pp. $125.00. ISBN 1-56081-669-4. Edward I. Stiefel p 854 DOI: 10.1021/ja965532n

Alkaloids:  Chemical and Biological Perspectives, Volume 10 Edited by S. William Pelletier (Institute for Natural Products Research and The University of GeorgiaAthens). Pergamon:  Oxford. 1996. xv + 430 pp. $190.00. ISBN 0-08-042791-X. p 854 DOI: 10.1021/ja965710c

Kirk-Othmer Encyclopedia of Chemical Technology, Volume 19:  Pigments to Powders, Handling Edited by Jacqueline I. Kroschwitz and Mary Howe-Grant. John Wiley & Sons:  New York. 1996. xxviii + 1141 pp. $325.00. ISBN 0-471-52688-6. p 854 DOI: 10.1021/ja9657115

Issue 05

Isomerization, But Not Oxidation, Is Suppressed by a Single Point Mutation, E361Q, in the Reaction Catalyzed by Cholesterol Oxidase Nicole S. Sampson and Ignatius J. Kass pp 855–862 DOI: 10.1021/ja962258o

Binding of Bicarbonate to Human Carbonic Anhydrase II:  A Continuum of Binding States Kenneth M. Merz, Jr. and Lucia Banci pp 863–871 DOI: 10.1021/ja963296a

Assignment of Backbone Resonances for Larger Proteins Using the 13C−1H Coherence of a 1Hα-, 2H-, 13C-, and 15N-Labeled Sample Toshio Yamazaki, Hidehito Tochio, Junichi Furui, Saburo Aimoto, and Yoshimasa Kyogoku pp 872–880 DOI: 10.1021/ja962945f

Control of Macromolecule Distribution within Synthetic and Biogenic Single Calcite Crystals J. Aizenberg, J. Hanson, T. F. Koetzle, S. Weiner, and L. Addadi pp 881–886 DOI: 10.1021/ja9628821

Model Systems for Flavoenzyme Activity:  One- and Two-Electron Reduction of Flavins in Aprotic Hydrophobic Environments Angelika Niemz, Jason Imbriglio, and Vincent M. Rotello pp 887–892 DOI: 10.1021/ja963704a

A Novel Water-Soluble Rhodium−Poly(enolate-co-vinyl alcohol-co-vinyl acetate) Catalyst for the Hydroformylation of Olefins Jinhua Chen and Howard Alper pp 893–895 DOI: 10.1021/ja9623875

Proteins as Solvents:  The Role of Amino Acid Composition in the Excited-State Charge Transfer Dynamics of Plastocyanins G. R. Loppnow and E. Fraga pp 896–905 DOI: 10.1021/ja962983z Supporting Info

Mechanistic Studies of Palladium(II)-Catalyzed Hydrosilation and Dehydrogenative Silation Reactions Anne M. LaPointe, Francis C. Rix, and Maurice Brookhart pp 906–917 DOI: 10.1021/ja962979n

Pseudo-Prolines as a Molecular Hinge:  Reversible Induction of cis Amide Bonds into Peptide Backbones Pascal Dumy, Michael Keller, Declan E. Ryan, Barbara Rohwedder, Torsten Wöhr, and Manfred Mutter pp 918–925 DOI: 10.1021/ja962780a Supporting Info

Selective Functionalization on [60]Fullerene Governed by Tether Length Masumi Taki, Sachiko Sugita, Yosuke Nakamura, Eiji Kasashima, Eiji Yashima, Yoshio Okamoto, and Jun Nishimura pp 926–932 DOI: 10.1021/ja960873m

Separation of Enantiomers and Racemate Formation in Two-Dimensional Crystals at the Water Surface from Racemic α-Amino Acid Amphiphiles:  Design and Structure Isabelle Weissbuch, Maria Berfeld, Wim Bouwman, Kristian Kjaer, Jens Als-Nielsen, Meir Lahav, and Leslie Leiserowitz pp 933–942 DOI: 10.1021/ja9613926 Supporting Info

Synthesis of [70]Azafulleroids:  Investigations of Azide Addition to C70 Cheryl Bellavia-Lund and Fred Wudl pp 943–946 DOI: 10.1021/ja963063j

A Unified Total Synthesis of the Immunomodulators (−)-Rapamycin and (−)-27-Demethoxyrapamycin:  Construction of the C(21−42) Perimeters Amos B. Smith, III, Stephen M. Condon, John A. McCauley, Johnnie L. Leazer, Jr., James W. Leahy, and Robert E. Maleczka, Jr. pp 947–961 DOI: 10.1021/ja963066w Supporting Info

A Unified Total Synthesis of the Immunomodulators (−)-Rapamycin and (−)-27-Demethoxyrapamycin:  Assembly of the Common C(1−20) Perimeter and Final Elaboration Amos B. Smith, III, Stephen M. Condon, John A. McCauley, Johnnie L. Leazer, Jr., James W. Leahy, and Robert E. Maleczka, Jr. pp 962–973 DOI: 10.1021/ja963067o Supporting Info

Intramolecular Electron Transfer in Fullerene/Ferrocene Based Donor−Bridge−Acceptor Dyads Dirk M. Guldi, Michele Maggini, Gianfranco Scorrano, and Maurizio Prato pp 974–980 DOI: 10.1021/ja960070z

Matrix Isolation of Diphenylsulfene and Diphenyl-α-sultine Wolfram Sander, Andreas Kirschfeld, and Martin Halupka pp 981–986 DOI: 10.1021/ja962949k

Three-Electron SN2 Reactions of Arylcyclopropane Cation Radicals. 1. Mechanism1 J. P. Dinnocenzo, T. R. Simpson, H. Zuilhof, W. P. Todd, and T. Heinrich pp 987–993 DOI: 10.1021/ja9631110

Three-Electron SN2 Reactions of Arylcyclopropane Cation Radicals. 2. Steric and Electronic Effects of Substitution1 J. P. Dinnocenzo, H. Zuilhof, D. R. Lieberman, T. R. Simpson, and M. W. McKechney pp 994–1004 DOI: 10.1021/ja963112s Supporting Info

Electrically Conducting Dendrimers Larry L. Miller, Robert G. Duan, David C. Tully, and Donald A. Tomalia pp 1005–1010 DOI: 10.1021/ja963270j

Bimetallic Magnetic Material [Ni(diamine)2]2[Fe(CN)6]X with Two-Dimensional Network Extended by Fe(III)-CN-Ni(II) Linkages Masaaki Ohba, Hisashi Ōkawa, Nobuo Fukita, and Yuzo Hashimoto pp 1011–1019 DOI: 10.1021/ja962198m Supporting Info

Synthesis of Au(II) Fluoro Complexes and Their Structural and Magnetic Properties Scott H. Elder, George M. Lucier, Frederick J. Hollander, and Neil Bartlett pp 1020–1026 DOI: 10.1021/ja9630654 Supporting Info

Homolytic C−S Bond Scission in the Desulfurization of Aromatic and Aliphatic Thiols Mediated by a Mo/Co/S Cluster:  Mechanistic Aspects Relevant to HDS Catalysis M. David Curtis and Scott H. Druker pp 1027–1036 DOI: 10.1021/ja9621096 Supporting Info

A Hexairon(III) Complex with Three Nonplanar η2-μ4-Peroxo Ligands Bridging Two Basic Iron Acetate Units Itzhak Shweky, Laura E. Pence, Georgia C. Papaefthymiou, Roberta Sessoli, Joanne W. Yun, Avi Bino, and Stephen J. Lippard pp 1037–1042 DOI: 10.1021/ja963062r Supporting Info

Functionalization of Gold Surfaces for Specific and Reversible Attachment of a Fused β-Galactosidase and Choline-Receptor Protein Juan Madoz, Boris A. Kuznetzov, Francisco J. Medrano, José L. Garcia, and Víctor M. Fernandez pp 1043–1051 DOI: 10.1021/ja963465r Supporting Info

An ab Initio Study of the Trimethylamine−Formic Acid and the Trimethylammonium Ion−Formate Anion Complexes, Their Monohydrates, and Continuum Solvation Tommy Liljefors and Per-Ola Norrby pp 1052–1058 DOI: 10.1021/ja9616692 Supporting Info

Theoretical Investigations on the Structure of Poly(iminomethylenes) with Aliphatic Side Chains. Conformational Studies and Comparison with Experimental Spectroscopic Data M. Clericuzio, G. Alagona, C. Ghio, and P. Salvadori pp 1059–1071 DOI: 10.1021/ja961692n

Alkali Metal Cation π-Interactions in Metalated and Nonmetalated Acetylenes:  π-Bonded Lithiums in the X-ray Crystal Structures of [Li−CC−SiMe2−C6H4−OMe]6 and [Li−O−CMe2−CC−H]6 and Computational Studies Bernd Goldfuss, Paul von Ragué Schleyer, and Frank Hampel pp 1072–1080 DOI: 10.1021/ja9622517 Supporting Info

Theoretical Study of the Low-Barrier Hydrogen Bond in the Hydrogen Maleate Anion in the Gas Phase. Comparison with Normal Hydrogen Bonds Mireia Garcia-Viloca, Angels González-Lafont, and José M. Lluch pp 1081–1086 DOI: 10.1021/ja962662n

[1,2]-Acyloxy Shifts in Radicals. A Computational Investigation of Substituent and Solvent Effects Hendrik Zipse pp 1087–1093 DOI: 10.1021/ja963249i Supporting Info

A Density Functional Study of Nickel(II) Diimide Catalyzed Polymerization of Ethylene Liqun Deng, Peter Margl, and Tom Ziegler pp 1094–1100 DOI: 10.1021/ja962860e Supporting Info

Quantum Mechanical Analysis of an α-Carboxylate-Substituted Oxocarbenium Ion. Isotope Effects for Formation of the Sialyl Cation and the Origin of an Unusually Large Secondary 14C Isotope Effect Benjamin A. Horenstein pp 1101–1107 DOI: 10.1021/ja963079+ Supporting Info

Amino Proton Exchange Processes in Mononucleosides A. Kettani, M. Guéron, and J.-L. Leroy pp 1108–1115 DOI: 10.1021/ja962022k Supporting Info

UV Resonance Raman Ground and Excited State Studies of Amide and Peptide Isomerization Dynamics Pusheng Li, X. G. Chen, E. Shulin, and Sanford A. Asher pp 1116–1120 DOI: 10.1021/ja962058c

Probing Through-Bond Connectivities and Through-Space Distances in Solids by Magic-Angle-Spinning Nuclear Magnetic Resonance M. Baldus, R. J. Iuliucci, and B. H. Meier pp 1121–1124 DOI: 10.1021/ja9622259

Skeletal Substitution as a Route to New Inorganic Heterocycles:  The Unexpected Replacement of Boron in a Borazine-like Environment Derek P. Gates, Louise M. Liable-Sands, Glenn P. A. Yap, Arnold L. Rheingold, and Ian Manners pp 1125–1126 DOI: 10.1021/ja9633427 Supporting Info

New Carbonyl Olefination Using Thioacetals Yasuo Horikawa, Mikako Watanabe, Tooru Fujiwara, and Takeshi Takeda pp 1127–1128 DOI: 10.1021/ja962240d Supporting Info

Biomimetic Cascade Cyclizations of Terpenoid Polyalkenes via Photoinduced Electron Transfer. Long-Distance Asymmetric Induction by a Chiral Auxiliary Christoph Heinemann and Martin Demuth pp 1129–1130 DOI: 10.1021/ja962479u Supporting Info

4‘-Acylated Thymidines:  A New Class of DNA Chain Terminators and Photocleavable DNA Building Blocks Andreas Marx, Maria P. MacWilliams, Thomas A. Bickle, Urs Schwitter, and Bernd Giese pp 1131–1132 DOI: 10.1021/ja9627813 Supporting Info

Enediyne C1027 Induces the Formation of Novel Covalent DNA Interstrand Cross-Links and Monoadducts Yong-jie Xu, Yong-su Zhen, and Irving H. Goldberg pp 1133–1134 DOI: 10.1021/ja963444x Supporting Info

Chemical Mechanism of DNA Scission by (1,10-Phenanthroline)copper. Carbonyl Oxygen of 5-Methylenefuranone Is Derived from Water Michael M. Meijler, Ottilie Zelenko, and David S. Sigman pp 1135–1136 DOI: 10.1021/ja962409n

Flavin-Dependent Photocleavage of RNA at G·U Base Pairs Petra Burgstaller and Michael Famulok pp 1137–1138 DOI: 10.1021/ja962918p Supporting Info

Unusual Ligand-Induced Reductive Elimination in Cp*W(NO)(H)[η2-PPh2C6H4]:  A Route to the Extremely Strong π-Donor Fragment Cp*W(NO)(PPh3) David J. Burkey, Jeff D. Debad, and Peter Legzdins pp 1139–1140 DOI: 10.1021/ja9635037 Supporting Info

Encapsulated Electroactive Molecules Based upon an Inorganic Cluster Surrounded by Dendron Ligands Christopher B. Gorman, Brandon L. Parkhurst, Wendy Y. Su, and Kang-Yi Chen pp 1141–1142 DOI: 10.1021/ja963541q Supporting Info

Host−Guest Complex Dependent Regioselectivity in Substitution Reactions of Chlorocyclotriphosphazene-Containing PNP-Crowns with Alkylenediamines Krystyna Brandt, Iwona Porwolik, Mariola Siwy, Teobald Kupka, Robert A. Shaw, David B. Davies, Michael B. Hursthouse, and Georgia D. Sykara pp 1143–1144 DOI: 10.1021/ja9624883 Supporting Info

Synthesis and Crystal Structure of an Unprecedented Tin(II)−Tin(II) Donor−Acceptor Complex, RN2Sn→SnCl2 [RN = CH(SiMe3)C9H6N-8] Wing-Por Leung, Wai-Him Kwok, Feng Xue, and Thomas C. W. Mak pp 1145–1146 DOI: 10.1021/ja962687m Supporting Info

Use of Molecular Recognition To Drive Chemical Evolution. 1. Controlling the Composition of an Equilibrating Mixture of Simple Arginine Receptors Alexey V. Eliseev and Marina I. Nelen pp 1147–1148 DOI: 10.1021/ja961893r Supporting Info

Why Is the Rearrangement of [6,5] Open Fulleroids to [6,6] Closed Fullerenes Zero Order? Zizhong Li and Philip B. Shevlin pp 1149–1150 DOI: 10.1021/ja963088i Supporting Info

Prediction of the Rate Constants for Proton Abstraction from Carbon Acids, Using a Simple Model and Multidimensional Marcus Theory J. Peter Guthrie pp 1151–1152 DOI: 10.1021/ja9629367 Supporting Info

A Permutation Test for Stabilization of Polypeptide Helices by Sequence-Dependent Side Chain Interactions:  Characterization of a Helix Initiation Site within the Myohemerythrin Sequence 76-87 Jonathan A. Zerkowski, Evan T. Powers, and D. S. Kemp pp 1153–1154 DOI: 10.1021/ja962642l

pH and Secondary Kinetic Isotope Effects on the Reaction of d-Amino Acid Oxidase with Nitroalkane Anions:  Evidence for Direct Attack on the Flavin by Carbanions Kevin A. Kurtz and Paul F. Fitzpatrick pp 1155–1156 DOI: 10.1021/ja962783n

Carbonic Anhydrase-Inhibitor Binding:  From Solution to the Gas Phase Qinyuan Wu, Jinming Gao, Diane Joseph-McCarthy, George B. Sigal, James E. Bruce, George M. Whitesides, and Richard D. Smith pp 1157–1158 DOI: 10.1021/ja9630250

An Anomalous Reaction of 2-Benzenesulfonyl-3-aryloxaziridines (Davis Reagents) with Indoles:  Evidence for a Stepwise Reaction of the Davis Reagent with a π-Bond Salim Mithani, David M. Drew, Edwin H. Rydberg, Nicholas J. Taylor, Sandra Mooibroek, and Gary I. Dmitrienko pp 1159–1160 DOI: 10.1021/ja963159d Supporting Info

Characterization of Waters of Hydrophobic Hydration by Microwave Dielectric Relaxation Dan W. Urry, ShaoQing Peng, Jie Xu, and David T. McPherson pp 1161–1162 DOI: 10.1021/ja962374r

Beam Implantation:  A New Method for Preparing Cage Molecules Containing Atoms at High Incorporation Levels R. Shimshi, R. J. Cross, and M. Saunders pp 1163–1164 DOI: 10.1021/ja9624578

Model Systems for Flavoenzyme Activity. Modulation of Flavin Redox Potentials through π-Stacking Interactions Eric C. Breinlinger and Vincent M. Rotello pp 1165–1166 DOI: 10.1021/ja9612110 Supporting Info

Solvent Effects on the 310-/α-Helix Equilibrium in Short Amphipathic Peptides Rich in α,α-Disubstituted Amino Acids T. Scott Yokum, Ted J. Gauthier, Robert P. Hammer, and Mark L. McLaughlin pp 1167–1168 DOI: 10.1021/ja962875c Supporting Info

Change in Reaction Pathway Induced by Deuteration:  Thermal Decomposition of Neopentyl Groups on Pt(111) Surfaces Ton V. W. Janssens, Gaolong Jin, and Francisco Zaera pp 1169–1170 DOI: 10.1021/ja962606m

Issue 06

Structure and Dynamics of Disulfide Cross-Linked DNA Triple Helices Scott E. Osborne, Robert J. Cain, and Gary D. Glick pp 1171–1182 DOI: 10.1021/ja963285h Supporting Info

Polymerization of Unprotected Synthetic Peptides:  A View toward Synthetic Peptide Vaccines Neil M. O'Brien-Simpson, Nicholas J. Ede, Lorena E. Brown, John Swan, and David C. Jackson pp 1183–1188 DOI: 10.1021/ja962707k

A Simulation of the Catalytic Mechanism of Aspartylglucosaminidase Using ab Initio Quantum Mechanics and Molecular Dynamics Mikael Peräkylä and Peter A. Kollman pp 1189–1196 DOI: 10.1021/ja9628967

Intramolecular Complex Formation and Triplet Energy Transfer in Polynorbornenes Incorporating Benzophenone Renae D. Fossum and Marye Anne Fox pp 1197–1207 DOI: 10.1021/ja961917u

Synthesis, Structure, and Properties of 4,8,12-Trioxa-12c-phospha-4,8,12,12c-tetrahydrodibenzo[cd,mn]pyrene, a Molecular Pyroelectric Frederik C. Krebs, Peter S. Larsen, Jan Larsen, Claus S. Jacobsen, Carlo Boutton, and Niels Thorup pp 1208–1216 DOI: 10.1021/ja962023c Supporting Info

Concerted and Stepwise Solvolytic Elimination and Substitution Reactions:  Stereochemistry and Substituent Effects Qingshui Meng, Adolf Gogoll, and Alf Thibblin pp 1217–1223 DOI: 10.1021/ja962469t Supporting Info

Mechanisms of Solvent- and Base-Promoted Imine-Forming Elimination Reactions Qingshui Meng and Alf Thibblin pp 1224–1229 DOI: 10.1021/ja9624681

The Squarate Ester−Polyquinane Connection. An Analysis of the Capacity of Achiral Divinyl Adducts To Rearrange Spontaneously to Polycyclic Networks Housing Multiple Stereogenic Centers Leo A. Paquette and Tina M. Morwick pp 1230–1241 DOI: 10.1021/ja963214i Supporting Info

Probe of the Stereochemically Determining Step in Squarate Ester Cascades. Proof that Helical Equilibration within the Octatetraene Intermediate Is Responsible and Definition of Steric Control Elements Leo A. Paquette, Ashton T. Hamme, II, Lung Huang Kuo, Julien Doyon, and Rüdiger Kreuzholz pp 1242–1253 DOI: 10.1021/ja9632163 Supporting Info

Thermodynamic Study of an Unusual Chiral Separation. Propranolol Enantiomers on an Immobilized Cellulase Torgny Fornstedt, Peter Sajonz, and Georges Guiochon pp 1254–1264 DOI: 10.1021/ja9631458

Remote Stereochemical Control of Both Reacting Centers in Ketyl-Olefin Radical Cyclizations:  Involvement of a Samarium Tridentate Ligate Gary A. Molander, J. Christopher McWilliams, and Bruce C. Noll pp 1265–1276 DOI: 10.1021/ja963195c Supporting Info

Methodology for the Preparation of Pure Recombinant S. cerevisiae Lanosterol Synthase Using a Baculovirus Expression System. Evidence That Oxirane Cleavage and A-Ring Formation Are Concerted in the Biosynthesis of Lanosterol from 2,3-Oxidosqualene E. J. Corey, Hengmiao Cheng, C. Hunter Baker, Seiichi P. T. Matsuda, Ding Li, and Xuelei Song pp 1277–1288 DOI: 10.1021/ja963227w

Studies on the Substrate Binding Segments and Catalytic Action of Lanosterol Synthase. Affinity Labeling with Carbocations Derived from Mechanism-Based Analogs of 2,3-Oxidosqualene and Site-Directed Mutagenesis Probes E. J. Corey, Hengmiao Cheng, C. Hunter Baker, Seiichi P. T. Matsuda, Ding Li, and Xuelei Song pp 1289–1296 DOI: 10.1021/ja963228o Supporting Info

Toward the Prediction of Magnetic Coupling in Molecular Systems:  Hydroxo- and Alkoxo-Bridged Cu(II) Binuclear Complexes Eliseo Ruiz, Pere Alemany, Santiago Alvarez, and Joan Cano pp 1297–1303 DOI: 10.1021/ja961199b Supporting Info

Kinetics of Photoinduced Electron-Transfer Reactions within Sol-Gel Silica Glass Doped with Zinc Cytochrome c. Study of Electrostatic Effects in Confined Liquids Chengyu Shen and Nenad M. Kostić pp 1304–1312 DOI: 10.1021/ja961867t Supporting Info

Toward Prediction of Magnetic Properties in Layered Vanadyl Phosphonates:  Correlation of Magnetic Exchange with the Hammett σ Parameter Jean Le Bideau, Dimitris Papoutsakis, James E. Jackson, and Daniel G. Nocera pp 1313–1316 DOI: 10.1021/ja9624836 Supporting Info

Hexacoordination via Sulfur Donor Action in Nitrogen and Chlorine Bonded Bicyclic Tetraoxyphosphoranes1 David J. Sherlock, A. Chandrasekaran, Roberta O. Day, and Robert R. Holmes pp 1317–1322 DOI: 10.1021/ja963258r Supporting Info

Spin−Orbit Coupling Induced Electron Spin Polarization:  Influence of Heavy Atom Position Shinya Sasaki, Akio Katsuki, Kimio Akiyama, and Shozo Tero-Kubota pp 1323–1327 DOI: 10.1021/ja961016l

Stereoisomerism and Biological Activity of the Selective and Superactive αvβ3 Integrin Inhibitor cyclo(-RGDfV-) and Its Retro-Inverso Peptide J. Wermuth, S. L. Goodman, A. Jonczyk, and H. Kessler pp 1328–1335 DOI: 10.1021/ja961908l Supporting Info

Temperature Dependence of Molecular Conformation, Dynamics, and Chemical Shift Anisotropy of α,α-Trehalose in D2O by NMR Relaxation Gyula Batta, Katalin E. Kövér, Jacquelyn Gervay, Miklós Hornyák, and Gareth M. Roberts pp 1336–1345 DOI: 10.1021/ja962807q Supporting Info

Investigation of Pyrolysis Products of Propylenimine by Gas Electron Diffraction Combined with ab Initio Calculations. Molecular Structures of CH3−NH−CHCH2 and CH3−NCH−CH3 Hideo Fujiwara, Toru Egawa, and Shigehiro Konaka pp 1346–1353 DOI: 10.1021/ja961063d Supporting Info

Photoelectron Spectroscopy of m-Xylylene Anion Paul G. Wenthold, Joseph B. Kim, and W. C. Lineberger pp 1354–1359 DOI: 10.1021/ja9623830

Geometric Structure and Torsional Potential of Biisothianaphthene. A Comparative DFT and ab Initio Study Pedro M. Viruela, Rafael Viruela, Enrique Ortí, and Jean-Luc Brédas pp 1360–1369 DOI: 10.1021/ja961586l Supporting Info

The Naphthylcarbene Potential Energy Hypersurface Yaoming Xie, Peter R. Schreiner, Paul von Ragué Schleyer, and Henry F. Schaefer, III pp 1370–1377 DOI: 10.1021/ja9517072 Supporting Info

Ab Initio Study of the Ring Expansion of Phenylnitrene and Comparison with the Ring Expansion of Phenylcarbene William L. Karney and Weston Thatcher Borden pp 1378–1387 DOI: 10.1021/ja9635241 Supporting Info

Free Radical Chain Reactions of [1.1.1]Propellane with Three-Coordinate Phosphorus Molecules. Evidence for the High Reactivity of the Bicyclo[1.1.1]pent-1-yl Radical Kevin P. Dockery and Wesley G. Bentrude pp 1388–1399 DOI: 10.1021/ja962287z Supporting Info

Photoinduced Charge Separation and Charge Recombination to a Triplet State in a Carotene−Porphyrin−Fullerene Triad Paul A. Liddell, Darius Kuciauskas, John P. Sumida, Boaz Nash, Dorothy Nguyen, Ana L. Moore, Thomas A. Moore, and Devens Gust pp 1400–1405 DOI: 10.1021/ja9631054

Tuning the Singlet−Triplet Energy Gap in a Non-Kekulé Series by Designed Structural Variation. The Singlet States of N-Substituted-3,4-dimethylenepyrrole Biradicals Linda C. Bush, Richard B. Heath, Xu Wu Feng, Patricia A. Wang, Ljiljana Maksimovic, Anne In Song, Wen-Sheng Chung, Alain B. Berinstain, J. C. Scaiano, and Jerome A. Berson pp 1406–1415 DOI: 10.1021/ja963113k Supporting Info

Triplet Species from Dihydropyrrolo[3,4-d]pyridazines, the Diazene Precursors of N-Arenesulfonyl-3,4-dimethylenepyrroles Linda C. Bush, Ljiljana Maksimovic, Xu Wu Feng, Helen S. M. Lu, and Jerome A. Berson pp 1416–1427 DOI: 10.1021/ja963114c Supporting Info

Catenation of Heterocyclic Non-Kekulé Biradicals to Tetraradical Prototypes of Conductive or Magnetic Polymers Helen S. M. Lu and Jerome A. Berson pp 1428–1438 DOI: 10.1021/ja9631155 Supporting Info

Hybrid Electrochemical/Chemical Synthesis of Supported, Luminescent Semiconductor Nanocrystallites with Size Selectivity:  Copper(I) Iodide G. S. Hsiao, M. G. Anderson, S. Gorer, D. Harris, and R. M. Penner pp 1439–1448 DOI: 10.1021/ja9630755

Could 2.2.2-Propellatriene Exist? Ernest R. Davidson p 1449 DOI: 10.1021/ja963652p

[Rh28N4(CO)41Hx]4-, a Massive Carbonyl Cluster with Four Interstitial Nitrogen Atoms Alessandro Fumagalli, Secondo Martinengo, Giovanni Bernasconi, Gianfranco Ciani, Davide M. Proserpio, and Angelo Sironi pp 1450–1451 DOI: 10.1021/ja961403v Supporting Info

Effect of Molecular Structures and Solvents on the Excited State Dynamics of the S2 State of Carotenoids Analyzed by the Femtosecond Up-Conversion Method, Mamoru Mimuro, Seiji Akimoto, Shinichi Takaichi, and Iwao Yamazaki pp 1452–1453 DOI: 10.1021/ja963162x

Short-Circuiting the Molecular Wire:  Cooperative Binding of Δ-[Ru(phen)2dppz]2+ and Δ-[Rh(phi)2bipy]3+ to DNA Per Lincoln, Eimer Tuite, and Bengt Nordén pp 1454–1455 DOI: 10.1021/ja9631965 Supporting Info

Reaction of a Sterically Hindered Silylene with Isocyanides:  The First Stable Silylene−Lewis Base Complexes Nobuhiro Takeda, Hiroyuki Suzuki, Norihiro Tokitoh, and Renji OkazakiShigeru Nagase pp 1456–1457 DOI: 10.1021/ja963092u Supporting Info

Light-Induced Route to Chaos in the H2O2−HSO3-−HCO3-−Fe(CN)64- Flow System Gyula RábaiIchiro Hanazaki pp 1458–1459 DOI: 10.1021/ja963244l

Synthesis, Structure, and Reactions of a Sulfenic Acid Bearing a Novel Bowl-Type Substituent:  The First Synthesis of a Stable Sulfenic Acid by Direct Oxidation of a Thiol Kei Goto, Michel Holler, and Renji Okazaki pp 1460–1461 DOI: 10.1021/ja962994s Supporting Info

Determination of the Absolute Steric Course of an Enantioselective Single Crystal-to-Single Crystal Photorearrangement Mordechai Leibovitch, Gunnar Olovsson, John R. Scheffer, and James Trotter pp 1462–1463 DOI: 10.1021/ja9631007

Synthesis and Thermal Rearrangement of C,N-Dialkynyl Imines:  A Potential Aza-Bergman Route to 2,5-Didehydropyridine Wendi M. David and Sean M. Kerwin pp 1464–1465 DOI: 10.1021/ja962328r Supporting Info

Dinitrogen and Carbon Dioxide Fixation by Transition Metal Oxo Complexes Martin Beyer, Christian Berg, Gerhard Albert, Uwe Achatz, Stefan Joos, Gereon Niedner-Schatteburg, and Vladimir E. Bondybey pp 1466–1467 DOI: 10.1021/ja963013e

A Sensitive Method for the Measurement of Three-Bond C‘,Hα J Couplings in Uniformly 13C- and 15N-Enriched Proteins Frank Löhr and Heinz Rüterjans pp 1468–1469 DOI: 10.1021/ja963149c

Oxidation of Hydrocarbons by [(phen)2Mn(μ-O)2Mn(phen)2]3+ via Hydrogen Atom Abstraction Kun Wang and James M. Mayer pp 1470–1471 DOI: 10.1021/ja963180e Supporting Info

Synthesis of Organometallic Dehydroannulenes Containing Ferrocene or (Cyclopentadienylcobalt)cyclobutadiene Moieties Markus Altmann, Jan Friedrich, Frank Beer, Ronald Reuter, Volker Enkelmann, and Uwe H. F. Bunz pp 1472–1473 DOI: 10.1021/ja962147p Supporting Info

Combining Quantum Mechanical Reaction Pathways with Force Field Lattice Interactions To Model a Solid-State Phototransformation Amy E. Keating, Steve H. Shin, K. N. Houk, and Miguel A. Garcia-Garibay pp 1474–1475 DOI: 10.1021/ja962734a Supporting Info

Nitration of Organolithiums and Grignards with Dinitrogen Tetroxide:  Success at Melting Interfaces Keita Tani, Kirill Lukin, and Philip E. Eaton pp 1476–1477 DOI: 10.1021/ja963658e

Regio- and Stereoselective Ring-Opening Cross-Metathesis. Rapid Entry into Functionalized Bicyclo[6.3.0] Ring Systems Marc L. Snapper, John A. Tallarico, and Michele L. Randall pp 1478–1479 DOI: 10.1021/ja9638263 Supporting Info

Diastereocontrolled Synthesis of Carbon Glycosides of N-Acetylneuraminic Acid via Glycosyl Samarium(III) Intermediates Iontcho R. Vlahov, Petinka I. Vlahova, and Robert J. Linhardt pp 1480–1481 DOI: 10.1021/ja962703f Supporting Info

A Facile Synthesis of Chiral γ-Butyrolactones in Extremely High Enantioselectivity Mediated by Samarium(II) Iodide Shin-ichi Fukuzawa, Kazutaka Seki, Masahiro Tatsuzawa, and Keisuke Mutoh pp 1482–1483 DOI: 10.1021/ja962965h Supporting Info

On-line HPLC−Exciton CD Analysis Using a Chiral Benzoyl Agent, (S)-TBMB Carboxylic Acid:  A Promising Approach toward Selective Identification of Enantiomeric Diols and Diamines Yoshihiro Nishida, Jeong-Hwan Kim, Hiroshi Ohrui, and Hiroshi Meguro pp 1484–1485 DOI: 10.1021/ja963229g

Reactions of Propargyl Metallic Species Generated by the Addition of Alkynyllithiums to Fischer-Type Carbene Complexes Nobuharu Iwasawa, Katsuya Maeyama, and Masatoshi Saitou pp 1486–1487 DOI: 10.1021/ja962173n Supporting Info

Ru-Catalyzed Rearrangement of Styrenyl Ethers. Enantioselective Synthesis of Chromenes through Zr- and Ru-Catalyzed Processes Joseph P. A. Harrity, Michael S. Visser, John D. Gleason, and Amir H. Hoveyda pp 1488–1489 DOI: 10.1021/ja9636597 Supporting Info

High Sensitivity and Fragmentation Specificity in the Analysis of Drug−DNA Adducts by Electrospray Tandem Mass Spectrometry Paula Iannitti, Margaret M. Sheil, and Geoffrey Wickham pp 1490–1491 DOI: 10.1021/ja962439q

Effective Kinetic Resolution of Secondary Alcohols with a Planar−Chiral Analogue of 4-(Dimethylamino)pyridine. Use of the Fe(C5Ph5) Group in Asymmetric Catalysis J. Craig Ruble, Hallie A. Latham, and Gregory C. Fu pp 1492–1493 DOI: 10.1021/ja963835b Supporting Info

Enantiomeric Cross-Inhibition in the Synthesis of Oligonucleotides on a Nonchiral Template Jürgen G. Schmidt, Peter E. Nielsen, and Leslie E. Orgel pp 1494–1495 DOI: 10.1021/ja963563c

Binding of Daunorubicin to β-d-Glucosylated DNA Found in Protozoa Tryponosoma brucei Studied by X-ray Crystallography Yi-gui Gao, Howard Robinson, Eric R. Wijsman, Gijs A. van der Marel, Jacques H. van Boom, and Andrew H.-J. Wang pp 1496–1497 DOI: 10.1021/ja963793r Supporting Info

Pericyclic Arrays in the Solid State. Azooxide and Azodioxide Donor−Acceptor Complexes with Tetracyanoethylene J. Am. Chem. Soc. 1995, 117, 6617−6618 Silas C. Blackstock, Kathy Poehling, and Melinda L. Greer p 1498 DOI: 10.1021/ja9654591

Loss Prevention and Safety Promotion in the Process Industries, 2 volumes Edited by J. J. Mewis (Katholieke Universiteit Leuven), H. J. Passman (TNO Defence Research, Delft), and E. E. De Rademaeker (Prevention Management International, Antwerp). Elsevier:  Amsterdam. 1995. 1504 pp. $338.25. ISBN 0-444-82136-8. p 1499 DOI: 10.1021/ja965677u

Reviews in Computational Chemistry, Volume 8 By Kenny B. Lipkowitz and Donald B. Boyd (Indiana Univeristy-Purdue University at Indianapolis). VCH:  New York. 1996. xxi + 324 pp. $110.00. ISBN 1-56081-929-4. Raymond C. Fort, Jr. p 1499 DOI: 10.1021/ja965725a

The Chemistry of Heterocycles By Theophil Eicher (University of The Saarland) and Siegfried Hauptmann (University of Leipzig). Georg Thieme:  Stuttgart, Germany. 1996. x + 504 pp. DM84. ISBN 3-13-100511-4. pp 1499–1500 DOI: 10.1021/ja965693r

Symmetry Through the Eyes of a Chemist, Second Edition By Istvan Hargittai (Budapest Technical University and Hungarian Academy of Sciences) and Magdolna Hargittai (Hungarian Academy of Sciences). Plenum Press:  New York. 1995. xii + 469 pp. $85.00. ISBN 0-306-44851-3. p 1500 DOI: 10.1021/ja965616w

Organic Thin Films and Surfaces:  Directions for the Nineties, Volume 20 Edited by Abraham Ulman (Polytechnic University, Brooklyn). Academic Press:  San Diego. 1995. 100 pp. $84.95. ISBN 0-12-523485-6. p 1500 DOI: 10.1021/ja965617o

A Multilingual Glossary of Biotechnological Terms (IUPAC Recommendations) Edited by Hans G. W. Leuenberger (F. Hoffmann-La Roche, AG), Bertrand Nagel (Seipelweg), and Heinz Kolbl (Bayer AG). VCH:  Weinheim, Germany. 1995. 251 pp. $78.00. ISBN 3-906390-13-6. p 1500 DOI: 10.1021/ja965618g

Enzyme Engineering XII Edited by Marie-Dominique Legoy and Daniel Thomas. Annals of the New York Academy of Sciences. New York Academy of Sciences:  New York. 1995. xiii + 506 pp. ISBN 0-89766-928-2. p 1500 DOI: 10.1021/ja965627p

Handbook of Thermodynamic Tables, Second Edited and Revised Edition By Kuzman Raznjevic. Begell House, Inc.: New York. 1996. vi + 247 pp. $77.50. ISBN 1-56700-046-0. p 1500 DOI: 10.1021/ja965738o

Topics in Molecular Organization and Engineering:  Strategies and Applications in Quantum Chemistry. From Molecular Astrophysics to Molecular Engineering Edited by Y. Ellinger (Ecole Normale Supereure & Observatoire de Paris) and M. Defranceschi (Commissarat a l'Energie Atomique). Kluwer Academic:  Dordrecht, The Netherlands. 1996. xiv + 461 pp. $207.00. ISBN 0-7923-3837-5. p 1500 DOI: 10.1021/ja965739g

Drug Prototypes and Their Exploitation By Walter Sneader (University of Strathclyde). John Wiley:  Chichester, U.K. 1996. xii + 788 pp. ISBN 0-471-94847-0. p 1500 DOI: 10.1021/ja9657418

Issue 07

DNA Damage from Sulfite Autoxidation Catalyzed by a Nickel(II) Peptide James G. Muller, Robyn P. Hickerson, Ronelito J. Perez, and Cynthia J. Burrows pp 1501–1506 DOI: 10.1021/ja963701y

The Linkage of Catalysis and Regulation in Enzyme Action. Fluoropyruvate as a Probe of Regulation in Pyruvate Decarboxylases Shaoxian Sun, Gregory S. Smith, Marion H. O'Leary, and Richard L. Schowen pp 1507–1515 DOI: 10.1021/ja963259j Supporting Info

Simultaneous Recognition of a Carboxylate-Containing Ligand and an Intramolecular Surrogate Ligand in the Crystal Structure of an Asymmetric Vancomycin Dimer Patrick J. Loll, Anthony E. Bevivino, Brian D. Korty, and Paul H. Axelsen pp 1516–1522 DOI: 10.1021/ja963566p Supporting Info

Role of Active Site Tyrosine in Glutathione S-Transferase:  Insights from a Theoretical Study on Model Systems Ya-Jun Zheng and Rick L. Ornstein pp 1523–1528 DOI: 10.1021/ja961667h

Effectiveness of Tetrahedral Adducts as Transition-State Analogs and Inhibitors of the Class C β-Lactamase of Enterobacter cloacae P99 Kieran Curley and R. F. Pratt pp 1529–1538 DOI: 10.1021/ja9634942 Supporting Info

Rational Design of the First Spherical Supramolecular Dendrimers Self-Organized in a Novel Thermotropic Cubic Liquid-Crystalline Phase and the Determination of Their Shape by X-ray Analysis V. S. K. Balagurusamy, G. Ungar, V. Percec, and G. Johansson pp 1539–1555 DOI: 10.1021/ja963295i Supporting Info

Solid Phase Syntheses of Oligoureas Kevin Burgess, Javier Ibarzo, D. Scott Linthicum, David H. Russell, Hunwoo Shin, Aroonsiri Shitangkoon, Reiko Totani, and Alex J. Zhang pp 1556–1564 DOI: 10.1021/ja9631256 Supporting Info

Chemical and Biological Oxidation of Thiophene:  Preparation and Complete Characterization of Thiophene S-Oxide Dimers and Evidence for Thiophene S-Oxide as an Intermediate in Thiophene Metabolism in Vivo and in Vitro Alexander Treiber, Patrick M. Dansette, Hamid El Amri, Jean-Pierre Girault, Daria Ginderow, Jean-Paul Mornon, and Daniel Mansuy pp 1565–1571 DOI: 10.1021/ja962466g Supporting Info

Preparation of and Fluoroalkylation with (Chlorodifluoromethyl)trimethylsilane, Difluorobis(trimethylsilyl)methane, and 1,1,2,2-Tetrafluoro-1,2-bis(trimethylsilyl)ethane Andrei K. Yudin, G. K. Surya Prakash, Denis Deffieux, Michael Bradley, Robert Bau, and George A. Olah pp 1572–1581 DOI: 10.1021/ja962990n

Polymethylated and Poly(tert)butylated Diphenylcarbenes. Generation, Reactions, Kinetics, and Deuterium Isotope Effects of Sterically Congested Triplet Carbenes Hideo Tomioka, Hidetsumu Okada, Tetsuya Watanabe, Kohji Banno, Kazunori Komatsu, and Katsuyuki Hirai pp 1582–1593 DOI: 10.1021/ja9635903 Supporting Info

CP-225,917 and CP-263,114:  Novel Ras Farnesylation Inhibitors from an Unidentified Fungus. 2. Structure Elucidation Thomas T. Dabrah, Takushi Kaneko, Walter Massefski, Jr., and Earl B. Whipple pp 1594–1598 DOI: 10.1021/ja961000v

Synthesis and Conformational Studies of Urobilin Difluoroboron Complexes. Unprecedented Solvent-Dependent Chiroptical Properties of the BF2 Chelate of an Urobilinoid Analogue1 Albert Gossauer, Felix Fehr, Fredy Nydegger, and Helen Stöckli-Evans pp 1599–1608 DOI: 10.1021/ja961883q Supporting Info

Neutral Molecule Receptor Systems Using Ferrocene's “Atomic Ball Bearing” Character as the Flexible Element Chensheng Li, Julio C. Medina, Glenn E. M. Maguire, Ernesto Abel, Jerry L. Atwood, and George W. Gokel pp 1609–1618 DOI: 10.1021/ja9600284

pH-Sensitive Gating by Conformational Change of a Polypeptide Brush Grafted onto a Porous Polymer Membrane Yoshihiro Ito, Yasushi Ochiai, Yong Soon Park, and Yukio Imanishi pp 1619–1623 DOI: 10.1021/ja963418z

Intracrystalline Structure of Molecular Mercury Halide Intercalated in High-Tc Superconducting Lattice of Bi2Sr2CaCu2Oy Jin-Ho Choy, Seong-Ju Hwang, and Nam-Gyu Park pp 1624–1633 DOI: 10.1021/ja961993x

Ring-Opening of σ-Thienyl and σ-Furyl Ligands at Ditungsten (MM) Centers Malcolm H. Chisholm, Scott T. Haubrich, John C. Huffman, and William E. Streib pp 1634–1647 DOI: 10.1021/ja962978v Supporting Info

Kinetics and Mechanism of Alkyl Transfer from Organocobalt(III) to Nickel(I):  Implications for the Synthesis of Acetyl Coenzyme A by CO Dehydrogenase M. S. Ram, Charles G. Riordan, Glenn P. A. Yap, Louise Liable-Sands, Arnold L. Rheingold, Adam Marchaj, and Jack R. Norton pp 1648–1655 DOI: 10.1021/ja963061z Supporting Info

Controlling the Orientation of Sequential Ligands in the Self-Assembly of Binuclear Coordination Compounds Markus Albrecht and Roland Fröhlich pp 1656–1661 DOI: 10.1021/ja963265f Supporting Info

Catalytic Reduction of cis-Dimethyldiazene by the [MoFe3S4]3+ Clusters. The Four-Electron Reduction of a NN Bond by a Nitrogenase-Relevant Cluster and Implications for the Function of Nitrogenase Steven M. Malinak, Anton M. Simeonov, Patrick E. Mosier, Charles E. McKenna, and Dimitri Coucouvanis pp 1662–1667 DOI: 10.1021/ja963475s Supporting Info

Mechanism of Nitrous Oxide Formation by Metal-Catalyzed Reduction of Nitric Oxide in Aqueous Solution Joseph H. MacNeil, Polly A. Berseth, Eric L. Bruner, Temur L. Perkins, Yasmine Wadia, Glenn Westwood, and William C. Trogler pp 1668–1675 DOI: 10.1021/ja963588b

Ester Hydrolysis by a Catalytic Cyclodextrin Dimer Enzyme Mimic with a Metallobipyridyl Linking Group Biliang Zhang and Ronald Breslow pp 1676–1681 DOI: 10.1021/ja963769d Supporting Info

Experimental and Theoretical Evidence for the Formation of Several Uranium Hydride Molecules Philip F. Souter, Gary P. Kushto, Lester Andrews, and Matthew Neurock pp 1682–1687 DOI: 10.1021/ja9630809

Gaseous Protein Cations Are Amphoteric James L. Stephenson, Jr., and Scott A. McLuckey pp 1688–1696 DOI: 10.1021/ja9632973

A Comprehensive Study of the Reactions of Methyl Fragments from Methyl Iodide Dissociation on Reduced and Oxidized Silica-Supported Copper Nanoparticles M. D. Driessen and V. H. Grassian pp 1697–1707 DOI: 10.1021/ja9633833

Experimental and Theoretical Characterization of FSi(OCH3)2(OCH2)-:  A Gas Phase Fluoride−Siloxirane Adduct Nelson H. Morgon, Andre B. Argenton, Maria L. P. da Silva, and José M. Riveros pp 1708–1716 DOI: 10.1021/ja963382a Supporting Info

Relationship between H−D Spin−Spin Coupling and Internuclear Distance in Molecular Hydrogen Complexes N. S. Hush pp 1717–1719 DOI: 10.1021/ja963150b

The Amide I Mode of Peptides in Aqueous Solution Involves Vibrational Coupling between the Peptide Group and Water Molecules of the Hydration Shell Guido Sieler and Reinhard Schweitzer-Stenner pp 1720–1726 DOI: 10.1021/ja960889c

Conformation of sLex Tetrasaccharide, Free in Solution and Bound to E-, P-, and L-Selectin, Leszek Poppe, Gregory S. Brown, John S. Philo, Pandurang V. Nikrad, and Bhavana H. Shah pp 1727–1736 DOI: 10.1021/ja9610702 Supporting Info

13C−1H and 13C−13C Spin Couplings in [2‘-13C]2‘-Deoxyribonucleosides:  Correlations with Molecular Structure Tapasree Bandyopadhyay, Jian Wu, Wayne A. Stripe, Ian Carmichael, and Anthony S. Serianni pp 1737–1744 DOI: 10.1021/ja961622g

Structure of [1.1]Ferrocenophanyllithium in the Solution and the Solid State. Absence of an Intramolecular [C−H−C]- Hydrogen Bond Per Ahlberg, Öjvind Davidsson, Martin Löwendahl, Göran Hilmersson, Annika Karlsson, and Mikael Håkansson pp 1745–1750 DOI: 10.1021/ja9619519

Mechanism and Solvent Catalysis of the Degenerate 1,12-Metalations of [1.1]Ferrocenophanyllithium and [1.1]Ferrocenophanylsodium Studied by NMR Spectroscopy Per Ahlberg, Annika Karlsson, Öjvind Davidsson, Göran Hilmersson, and Martin Löwendahl pp 1751–1757 DOI: 10.1021/ja964346e

Effects of Concerted Hydrogen Bonding of Distal Histidine on Active Site Structures of Horseradish Peroxidase. Resonance Raman Studies with Asn70 Mutants Masahiro Mukai, Shingo Nagano, Motomasa Tanaka, Koichiro Ishimori, Isao Morishima, Takashi Ogura, Yoshihito Watanabe, and Teizo Kitagawa pp 1758–1766 DOI: 10.1021/ja962551o

Polymorphism in Molecular Crystals:  Stabilization of a Metastable Form by Conformational Mimicry R. J. Davey, N. Blagden, G. D. Potts, and R. Docherty pp 1767–1772 DOI: 10.1021/ja9626345

Spin−Orbit Coupling in the Oxidative Activation of H−H by FeO+. Selection Rules and Reactivity Effects David Danovich and Sason Shaik pp 1773–1786 DOI: 10.1021/ja963033g

Reduction of Inhomogeneous Line Broadening in Two-Dimensional High-Resolution MAS NMR Spectra of Molecules Attached to Swelled Resins in Solid-Phase Synthesis Axel Meissner, Paw Bloch, Eberhard Humpfer, Manfred Spraul, and Ole Winneche Sørensen pp 1787–1788 DOI: 10.1021/ja9630001

Δ3-1,3,4-Oxadiazolines:  Photochemical Precursors to Diazoalkanes and sec-Alkanediazonium Ions in Acidic Solution1 John Paul Pezacki, Brian D. Wagner, Calvin S. Q. Lew, John Warkentin, and Janusz Lusztyk pp 1789–1790 DOI: 10.1021/ja962550w

High-Pressure NMR Studies of (Porphinato)iron-Catalyzed Isobutane Oxidation Utilizing Dioxygen as the Stoichiometric Oxidant Kevin T. Moore, István T. Horváth, and Michael J. Therien pp 1791–1792 DOI: 10.1021/ja961531j Supporting Info

Anion Recognition by Tripodal Receptors Derived from Cholic Acid Anthony P. Davis, Justin J. Perry, and Robert P. Williams pp 1793–1794 DOI: 10.1021/ja9629930 Supporting Info

The First Example of Facile Oxidative Addition of Carbon−Tellurium Bonds to Zero-Valent Pt, Pd, and Ni Complexes Li-Biao Han, Nami Choi, and Masato Tanaka pp 1795–1796 DOI: 10.1021/ja963798o Supporting Info

C60:  Sphere or Polyhedron? R. C. Haddon pp 1797–1798 DOI: 10.1021/ja9637659

Highly Enantioselective Rh-Catalyzed Hydrogenations with a New Chiral 1,4-Bisphosphine Containing a Cyclic Backbone Guoxin Zhu, Ping Cao, Qiongzhong Jiang, and Xumu Zhang pp 1799–1800 DOI: 10.1021/ja9634381 Supporting Info

Synthesis of Metal-Centered Star-Shaped Polyoxazolines Using Fe(II) and Ru(II) Tris-bipyridine Derivatives as Multifunctional Initiators Jaydeep J. S. Lamba and Cassandra L. Fraser pp 1801–1802 DOI: 10.1021/ja962834g Supporting Info

Two-Dimensional NMR Methods for Determining χ1 Angles of Aromatic Residues in Proteins from Three-Bond JC‘Cγ and JNCγ Couplings Jin-Shan Hu, Stephan Grzesiek, and Ad Bax pp 1803–1804 DOI: 10.1021/ja963625z Supporting Info

Cell-Specific Calcineurin Inhibition by a Modified Cyclosporin Peter J. Belshaw and Stuart L. Schreiber pp 1805–1806 DOI: 10.1021/ja9636146

Studies in Surface Science and Catalysis, No. 96. Catalysis and Automotive Pollution Control III Edited by A. Frennet and J.-M. Bastin (Universite Libre de Bruxelles). Elsevier:  Amsterdam. 1995. xvii + 940 pp. $340.75. ISBN 0-444-82019-1. p 1807 DOI: 10.1021/ja9656199

Metal-Containing Polymeric Materials Edited by Charles U. Pittman, Jr. (Mississippi State University), Charles E. Carraher, Jr. (Florida Atlantic University), Martel Zeldin (City University of New York), John E. Sheats (Rider College), and Bill M. Culbertson (Ohio State University). Plenum Press:  New York. 1996. x + 518 pp. $125.00. ISBN 0-306-45295-2. p 1807 DOI: 10.1021/ja965679e

Progress in the Chemistry of Organic Natural Products, No. 68 Edited by W. Herz (The Florida State University), G. W. Kirby (The UniversityGlasgow), R. E. Moore (University of Hawaii at Manoa), W. Steglich (Institut fur Organishche Chemie der Universitat Munchen), and Ch. Tamm. Springer:  Wein. 1996. vii + 498 pp. DM330. ISBN 3-211-82702-1. p 1807 DOI: 10.1021/ja9657869

Electroanalytical Chemistry. Volume 19 Edited by Allen J. Bard (University of Texas at Austin) and Israel Rubinstein (Weizmann Institute of Science, Israel). Marcel Dekker:  New York. 1966. xii + 525 pp. $175.00. ISBN 0-8247-9379-X. Bernadette T. Donovan-Merkert pp 1807–1808 DOI: 10.1021/ja9656863

Nonlinear Computer Modeling of Chemical and Biochemical Data By James F. Rushing (University of Connecticut) and Thomas F. Kumosinski (USDA). Academic Press:  San Diego. 1996. xv + 26 pp. $64.95. ISBN 0-12-604490-2. Victor J. Law p 1808 DOI: 10.1021/ja965588h

Bioorganic Chemistry:  Nucleic Acids Edited by Sidney M. Hecht (University of Virginia). Oxford University Press:  New York. 1996. viii + 500 pp. $59.95. ISBN 0-19-508467-5. Kent S. Gates p 1808 DOI: 10.1021/ja9657059

Issue 08

3-Deoxy-3-fluoropyridoxamine 5‘-Phosphate:  Synthesis and Chemical and Biological Properties of a Coenzyme B6 Analog Patricia A. Pieper, Ding-yah Yang, Hui-qiang Zhou, and Hung-wen Liu pp 1809–1817 DOI: 10.1021/ja9632668 Supporting Info

Tritiated Chiral Alkanes as Substrates for Soluble Methane Monooxygenase from Methylococcus capsulatus (Bath):  Probes for the Mechanism of Hydroxylation Ann M. Valentine, Barrie Wilkinson, Katherine E. Liu, Sonja Komar-Panicucci, Nigel D. Priestley, Philip G. Williams, Hiromi Morimoto, Heinz G. Floss, and Stephen J. Lippard pp 1818–1827 DOI: 10.1021/ja963971g Supporting Info

DNA Damage Induced via 5,6-Dihydrothymid-5-yl in Single-Stranded Oligonucleotides Marc M. Greenberg, Mark R. Barvian, Gary P. Cook, Brian K. Goodman, Tracy J. Matray, Christopher Tronche, and Hariharan Venkatesan pp 1828–1839 DOI: 10.1021/ja9533510 Supporting Info

Toward an Understanding of the High Enantioselectivity in the Osmium-Catalyzed Asymmetric Dihydroxylation. 4. Electronic Effects in Amine-Accelerated Osmylations Derek W. Nelson, Andreas Gypser, Pui Tong Ho, Hartmuth C. Kolb, Teruyuki Kondo, Hoi-Lun Kwong, Dominic V. McGrath, A. Erik Rubin, Per-Ola Norrby, Kevin P. Gable, and K. Barry Sharpless pp 1840–1858 DOI: 10.1021/ja961464t Supporting Info

Control of Carbene Reactivity by Crystals. A Highly Selective 1,2-H Shift in the Solid-to-Solid Reaction of 1-(4‘-Biphenylyl)-2-phenyldiazopropane to (Z)-1-(4‘-Biphenylyl)-2-phenylpropene Steve H. Shin, Deniz Cizmeciyan, Amy E. Keating, Saeed I. Khan, and Miguel A. Garcia-Garibay pp 1859–1868 DOI: 10.1021/ja9633225 Supporting Info

Pentalene:  Formation, Electronic, and Vibrational Structure Thomas Bally, Shengyong Chai, Markus Neuenschwander, and Zhendong Zhu pp 1869–1875 DOI: 10.1021/ja963439t Supporting Info

Nucleophile-Assisted Cleavage of Benzyltrialkylsilane Cation Radicals Kevin P. Dockery, Joseph P. Dinnocenzo, Samir Farid, Joshua L. Goodman, Ian R. Gould, and William P. Todd pp 1876–1883 DOI: 10.1021/ja963197x

Kinetic Resolution of Meso/dl Stereoisomeric Mixtures:  Theory and Practice Dale E. Ward, David How, and Yadong Liu pp 1884–1894 DOI: 10.1021/ja9629726 Supporting Info

Unusual Intensities in the Resonance Raman Spectra and Excitation Profiles of an Intervalence Metal-to-Metal Charge Transfer Complex Jeffrey L. Wootton and Jeffrey I. Zink pp 1895–1900 DOI: 10.1021/ja962228l

Spectroscopic Characterization of the Catalytically Competent Ferrous Site of the Resting, Activated, and Substrate-Bound Forms of Phenylalanine Hydroxylase Kelly E. Loeb, Tami E. Westre, T. Joseph Kappock, Nataša Mitić, Elizabeth Glasfeld, John P. Caradonna, Britt Hedman, Keith O. Hodgson, and Edward I. Solomon pp 1901–1915 DOI: 10.1021/ja962269h

Determination of Reactive Intermediates in Iron Porphyrin Complex-Catalyzed Oxygenations of Hydrocarbons Using Isotopically Labeled Water:  Mechanistic Insights Kyoung Ah Lee and Wonwoo Nam pp 1916–1922 DOI: 10.1021/ja9629118

EPR Studies on the Mono- and Dicobalt(II)-Substituted Forms of the Aminopeptidase from Aeromonas proteolytica. Insight into the Catalytic Mechanism of Dinuclear Hydrolases Brian Bennett and Richard C. Holz pp 1923–1933 DOI: 10.1021/ja963021v

Preparation and Characterization of [2Ga-2S] Anabaena 7120 Ferredoxin, the First Gallium−Sulfur Cluster-Containing Protein Evanly Vo, Harry C. Wang, and Juris P. Germanas pp 1934–1940 DOI: 10.1021/ja961330f Supporting Info

A Theoretical Study of the Favorskii Rearrangement. Calculation of Gas-Phase Reaction Paths and Solvation Effects on the Molecular Mechanism for the Transposition of the α-Chlorocyclobutanone V. Moliner, R. Castillo, V. S. Safont, M. Oliva, S. Bohn, I. Tuñón, and J. Andrés pp 1941–1947 DOI: 10.1021/ja962571q Supporting Info

A Theoretical Study of Stereochemistry of 1,3-Migration in Allylsilane and Related Allylmetallic Compounds Masae Takahashi and Mitsuo Kira pp 1948–1953 DOI: 10.1021/ja9630506 Supporting Info

Calculation of a Reaction Path for KOH Catalyzed Ring-Opening Polymerization of Hexamethylcyclotrisiloxane J. D. Kress, P. C. Leung, G. J. Tawa, and P. J. Hay pp 1954–1960 DOI: 10.1021/ja961190+

Absolute Rate Constants for the Reactions of Sulfur (3PJ) Atoms in Solution Werner M. Nau, Götz Bucher, and J. C. Scaiano pp 1961–1970 DOI: 10.1021/ja962929i

Model Studies of DNA Photorepair:  Reduction Potentials of Thymine and Cytosine Cyclobutane Dimers Measured by Fluorescence Quenching Michael P. Scannell, David J. Fenick, Syun-Ru Yeh, and Daniel E. Falvey pp 1971–1977 DOI: 10.1021/ja963360o

Electron Transfer in Proteins:  Structural and Energetic Control of the Electronic Coupling José-Maria Lopez-Castillo, Abdelali Filali-Mouhim, Élise Nguyen Van Binh-Otten, and Jean-Paul Jay-Gerin pp 1978–1980 DOI: 10.1021/ja961978s

Combined MAS NMR and X-ray Powder Diffraction Structural Characterization of Hydrofluorocarbon-134 Adsorbed on Zeolite NaY:  Observation of Cation Migration and Strong Sorbate−Cation Interactions Clare P. Grey, Faiza I. Poshni, Alessandro F. Gualtieri, Poul Norby, Jonathan C. Hanson, and David R. Corbin pp 1981–1989 DOI: 10.1021/ja963565x

How Unstable are Thiosulfoxides? An ab Initio MO Study of Various Disulfanes RSSR (R = H, Me, Pr, All), Their Branched Isomers R2SS, and the Related Transition States1,2 Ralf Steudel, Yana Drozdova, Karol Miaskiewicz, Roland H. Hertwig, and Wolfram Koch pp 1990–1996 DOI: 10.1021/ja9624026

Electron and Mass Transport in Hybrid Redox Polyether Melts:  Co and Fe Bipyridines with Attached Polyether Chains Mary Elizabeth Williams, Hitoshi Masui, Jeffrey W. Long, Jitendra Malik, and Royce W. Murray pp 1997–2005 DOI: 10.1021/ja962531m

Force Titrations and Ionization State Sensitive Imaging of Functional Groups in Aqueous Solutions by Chemical Force Microscopy Dmitri V. Vezenov, Aleksandr Noy, Lawrence F. Rozsnyai, and Charles M. Lieber pp 2006–2015 DOI: 10.1021/ja963375m

Absolute Affinities of α-Amino Acids for Cu+ in the Gas Phase. A Theoretical Study S. Hoyau and G. Ohanessian pp 2016–2024 DOI: 10.1021/ja963432b

Raman and Infrared Spectra of (2‘S)-[2‘-2H]Thymidine:  Vibrational Coupling between Deoxyribosyl and Thymine Moieties and Structural Implications Masamichi Tsuboi, Mamoru Komatsu, Junichi Hoshi, Etsuko Kawashima, Takeshi Sekine, Yoshiharu Ishido, Malcolm P. Russell, James M. Benevides, and George J. Thomas, Jr. pp 2025–2032 DOI: 10.1021/ja962676t Supporting Info

Conformations and Relative Stabilities of the Cis and Trans Isomers in a Series of Isolated N-Phenylamides V. P. Manea, K. J. Wilson, and J. R. Cable pp 2033–2039 DOI: 10.1021/ja962809a

Fullerene Dications and Trications as Initiators in the Gas-Phase “Ball-and-Chain” Polymerization of Allene and Propyne:  Observation of a Remarkable Periodicity in Chain Growth with Allene Vladimir Baranov, Jinru Wang, Gholamreza Javahery, Simon Petrie, Alan C. Hopkinson, and Diethard K. Bohme pp 2040–2049 DOI: 10.1021/ja961359j

Enantioselective Total Syntheses of the 5,11-Methanomorphanthridine Amaryllidaceae Alkaloids (−)-Pancracine and (−)-Coccinine Jian Jin and Steven M. Weinreb pp 2050–2051 DOI: 10.1021/ja963900h Supporting Info

Synthesis, Crystal Structure, and Explosive Decomposition of 1,2:5,6:11,12:15,16- Tetrabenzo-3,7,9,13,17,19-hexadehydro[20]annulene:  Formation of Onion- and Tube-like Closed-Shell Carbon Particles Roland Boese, Adam J. Matzger, and K. Peter C. Vollhardt pp 2052–2053 DOI: 10.1021/ja963845c Supporting Info

Electron Photodetachment Spectroscopy of (E)- and (Z)-Propionaldehyde Enolate Anions. Electron Affinities of the Stereoisomers of Propionaldehyde Enolate Radicals Bettina C. Römer and John I. Brauman pp 2054–2055 DOI: 10.1021/ja962482d

Difluorotoluene, a Nonpolar Isostere for Thymine, Codes Specifically and Efficiently for Adenine in DNA Replication Sean Moran, Rex X.-F. Ren, Squire Rumney IV, and Eric T. Kool pp 2056–2057 DOI: 10.1021/ja963718g Supporting Info

Total Synthesis of the Polyene Macrolide Roflamycoin Scott D. Rychnovsky, Uday R. Khire, and Guang Yang pp 2058–2059 DOI: 10.1021/ja963800b Supporting Info

A Ternary Complex Reagent for an Asymmetric Reaction of Lithium Ester Enolates with Imines Hiroki Fujieda, Motomu Kanai, Takeshi Kambara, Akira Iida, and Kiyoshi Tomioka pp 2060–2061 DOI: 10.1021/ja963581u Supporting Info

All-or-None Type Photochemical Switching of Cation Binding with Malachite Green Carrying a Bis(monoazacrown ether) Moiety Keiichi Kimura, Ryoko Mizutani, Masaaki Yokoyama, Ryuichi Arakawa, Gen-etsu Matsubayashi, Masanori Okamoto, and Hidekazu Doe pp 2062–2063 DOI: 10.1021/ja963405l

Solution and Crystal Structures of the H175G Mutant of Cytochrome c Peroxidase:  A Resonance Raman Study Jie Sun, Melissa M. Fitzgerald, David B. Goodin, and Thomas M. Loehr pp 2064–2065 DOI: 10.1021/ja963461m

Tandem Enamine Michael Additions to 4-(Mesyloxy)cyclopentenones:  Bridged Tricyclic Skeletons via a Net [3 + 2] Construction1 G. U. Gunawardena, Atta M. Arif, and F. G. West pp 2066–2067 DOI: 10.1021/ja963978y Supporting Info

Observation of New Intermediates in Hydrogenation Catalyzed by Wilkinson's Catalyst, RhCl(PPh3)3, Using Parahydrogen-Induced Polarization J. Am. Chem. Soc. 1994, 116, 10548−10556 Simon B. Duckett, Connie L. Newell, and Richard Eisenberg p 2068 DOI: 10.1021/ja975400+

Issue 09

Electronic Characteristics of Arylated Tetraethynylethenes:  A Cooperative Computational and Electrochemical Investigation Anouk Hilger, Jean-Paul Gisselbrecht, Rik R. Tykwinski, Corinne Boudon, Martin Schreiber, Rainer E. Martin, Hans Peter Lüthi, Maurice Gross, and François Diederich pp 2069–2078 DOI: 10.1021/ja962724+ Supporting Info

A Novel Camphor-Derived Selenenamide That Acts as a Glutathione Peroxidase Mimetic Thomas G. Back and Brian P. Dyck pp 2079–2083 DOI: 10.1021/ja963602k

Oscillations and Complex Dynamics in the Peroxidase−Oxidase Reaction Induced by Naturally Occurring Aromatic Substrates Ursula Kummer, Marcus J. B. Hauser, Klaus Wegmann, Lars F. Olsen, and Gerold Baier pp 2084–2087 DOI: 10.1021/ja9636855

Synthesis of New α-Thiosialodendrimers and Their Binding Properties to the Sialic Acid Specific Lectin from Limax flavus Diana Zanini and René Roy pp 2088–2095 DOI: 10.1021/ja963874n Supporting Info

Protonation of Unactivated Aromatic Hydrocarbons on Osmium(II):  Stabilization of Arenium Cations via Unprecedented η2- and η3-Coordination Mark D. Winemiller, Michael E. Kopach, and W. Dean Harman pp 2096–2102 DOI: 10.1021/ja963299n

Physical Organic Chemistry of Transition Metal Carbene Complexes. 7.1 Kinetics of Hydrolysis of (CO)5MC(OR)Ph (M = Cr, W; R = Me, Et) and (CO)5Cr(OMe)CHCHPh in Aqueous Acetonitrile Claude F. Bernasconi, Francis X. Flores, and Kevin W. Kittredge pp 2103–2110 DOI: 10.1021/ja963617i Supporting Info

Dolastatins. 26. Synthesis and Stereochemistry of Dolastatin 111a Robert B. Bates, Kennard G. Brusoe, Jennifer J. Burns, Sriyani Caldera, Wei Cui, Sanjeev Gangwar, Michelle R. Gramme, Kelly J. McClure, Gregory P. Rouen, Heiko Schadow, Chad C. Stessman, Stuart R. Taylor, Vicky H. Vu, Gayle V. Yarick, Jianxing Zhang, George R. Pettit, and Roger Bontems pp 2111–2113 DOI: 10.1021/ja963857y Supporting Info

Enzymatic Glycoprotein Synthesis:  Preparation of Ribonuclease Glycoforms via Enzymatic Glycopeptide Condensation and Glycosylation Krista Witte, Pamela Sears, Richard Martin, and Chi-Huey Wong pp 2114–2118 DOI: 10.1021/ja961846z

Phenacenes:  A Family of Graphite Ribbons. 2. Syntheses of Some [7]Phenacenes and an [11]Phenacene by Stilbene-like Photocyclizations Frank B. Mallory, Kelly E. Butler, Amanda C. Evans, Emilie J. Brondyke, Clelia W. Mallory, Changqing Yang, and Aviva Ellenstein pp 2119–2124 DOI: 10.1021/ja9638418

Scope and Utility of a New Soluble Copper Catalyst [CuBr−LiSPh−LiBr−THF]:  A Comparison with Other Copper Catalysts in Their Ability to Couple One Equivalent of a Grignard Reagent with an Alkyl Sulfonate Dennis H. Burns, Jeffrey D. Miller, Ho-Kit Chan, and Michael O. Delaney pp 2125–2133 DOI: 10.1021/ja963944q

Electron-Transfer-Coupled Ligand Dynamics in CuI/II(TTCN)2 Complexes in Aqueous Solution Sanaullah, Hartmut Hungerbühler, Christian Schöneich, Martha Morton, David G. Vander Velde, George S. Wilson, Klaus-Dieter Asmus, and Richard S. Glass pp 2134–2145 DOI: 10.1021/ja9627757 Supporting Info

Cyclic Electron Transfer within the [Zn-Myoglobin, Cytochrome b5] Complex Judith M. Nocek, Bhavini P. Sishta, Janelle C. Cameron, A. Grant Mauk, and Brian M. Hoffman pp 2146–2155 DOI: 10.1021/ja9630811

NMR and Electronic Relaxation in Paramagnetic Dicopper(II) Compounds Narasimha N. Murthy, Kenneth D. Karlin, Ivano Bertini, and Claudio Luchinat pp 2156–2162 DOI: 10.1021/ja961555q Supporting Info

A Basis Set of Re6Se8 Cluster Building Blocks and Demonstration of Their Linking Capability:  Directed Synthesis of an Re12Se16 Dicluster Zhiping Zheng, Jeffrey R. Long, and R. H. Holm pp 2163–2171 DOI: 10.1021/ja9638519 Supporting Info

Solution−Liquid−Solid Growth of Indium Phosphide Fibers from Organometallic Precursors:  Elucidation of Molecular and Nonmolecular Components of the Pathway Timothy J. Trentler, Subhash C. Goel, Kathleen M. Hickman, Ann M. Viano, Michael Y. Chiang, Alicia M. Beatty, Patrick C. Gibbons, and William E. Buhro pp 2172–2181 DOI: 10.1021/ja9640859 Supporting Info

Ultrasonic Relaxation and Fast Chemical Kinetics of Some Carbohydrate Aqueous Solutions Ralph Behrends, Mary K. Cowman, Frieder Eggers, Edward M. Eyring, Udo Kaatze, Jason Majewski, Sergio Petrucci, Kurt-H. Richmann, and Michael Riech pp 2182–2186 DOI: 10.1021/ja9632623

Characterizing Triplet States of Quinonoidal Dinitrenes as a Function of Conjugation Length Masaki Minato and Paul M. Lahti pp 2187–2195 DOI: 10.1021/ja963648d Supporting Info

Molecular Dynamics Simulations Combined with Large Angle X-ray Scattering Technique for the Determination of the Structure, Conformation, and Conformational Dynamics of Polyphosphazenes in Amorphous Phase:  Study of Poly[di(4-methylphenoxy)phosphazene] Ruggero Caminiti, Mario Gleria, Kenny B. Lipkowitz, Giuseppe M. Lombardo, and Giuseppe C. Pappalardo pp 2196–2204 DOI: 10.1021/ja961858k

Atomic Resolution X-ray Standing Wave Microstructural Characterization of NLO-Active Self-Assembled Chromophoric Superlattices Wenbin Lin, Tien-Lin Lee, Paul F. Lyman, Jaejin Lee, Michael J. Bedzyk, and Tobin J. Marks pp 2205–2211 DOI: 10.1021/ja962293v

Structure and Dynamics of a Peptidoglycan Monomer in Aqueous Solution Using NMR Spectroscopy and Simulated Annealing Calculations Hans Matter, László Szilágyi, Péter Forgó, Željko Marinić, and Branimir Klaić pp 2212–2223 DOI: 10.1021/ja962776z Supporting Info

Assembling Alternate Dye−Polyion Molecular Films by Electrostatic Layer-by-Layer Adsorption Katsuhiko Ariga, Yuri Lvov, and Toyoki Kunitake pp 2224–2231 DOI: 10.1021/ja963442c

Theory versus Experiment in Jet Spectroscopy:  Glycolic Acid Peter D. Godfrey, Fiona M. Rodgers, and Ronald D. Brown pp 2232–2239 DOI: 10.1021/ja9616793 Supporting Info

Protein Structure in Vacuo:  Gas-Phase Conformations of BPTI and Cytochrome c Konstantin B. Shelimov, David E. Clemmer, Robert R. Hudgins, and Martin F. Jarrold pp 2240–2248 DOI: 10.1021/ja9619059

Cyclopentadienyl, Indenyl, and Fluorenyl Anions:  Gas-Phase and Solvation Energy Contributions to Electron Detachment Energies Bettina Römer, Gordon A. Janaway, and John I. Brauman pp 2249–2254 DOI: 10.1021/ja961947x

A Study of Dendrimer-Solute Interactions via Electrokinetic Chromatography Scott A. Kuzdzal, Curtis A. Monnig, George R. Newkome, and Charles N. Moorefield pp 2255–2261 DOI: 10.1021/ja9623018

Correlation of Gas-Phase Stability of Bridgehead Carbocations with Rates of Solvolysis and ab Initio Calculations José-Luis M. Abboud, Obis Castaño, Ernest W. Della, Marta Herreros, Paul Müller, Rafael Notario, and Jean-Claude Rossier pp 2262–2266 DOI: 10.1021/ja962319i

Radiatively Self-Cooled Penning-Trapped Electrons:  A New Way To Make Gas-Phase Negative Ions from Neutrals of Low Electron Affinity Guo-Zhong Li, Hyun Sik Kim, Shengheng Guan, and Alan G. Marshall pp 2267–2272 DOI: 10.1021/ja962350k

Regiospecific and Diastereoselective C−H and C−Si Bond Activation of ω-Silyl-Substituted Alkane Nitriles by “Bare” Co+ Cations in the Gas Phase Georg Hornung, Detlef Schröder, and Helmut Schwarz pp 2273–2279 DOI: 10.1021/ja963254m

Protonation Sites in Pyrimidine and Pyrimidinamines in the Gas Phase Viet Q. Nguyen and František Tureek pp 2280–2290 DOI: 10.1021/ja9634785 Supporting Info

Spectral Evidence for Single Electron Transfer in Nucleophilic Aliphatic Substitution of a Carbanion by Methyl Iodide Laren M. Tolbert, Joanne Bedlek, Michael Terapane, and Janusz Kowalik pp 2291–2292 DOI: 10.1021/ja9620402

Synthesis and Kinetic Properties of Ribozyme Analogues Prepared Using Phosphoramidite Derivatives of Dysprosium(III) Texaphyrin Darren Magda, Shaun Crofts, Alice Lin, Dale Miles, Meredith Wright, and Jonathan L. Sessler pp 2293–2294 DOI: 10.1021/ja9627149 Supporting Info

Conformational Switching by Asparagine-Linked Glycosylation Sarah E. O'Connor and Barbara Imperiali pp 2295–2296 DOI: 10.1021/ja963435o Supporting Info

Thermal Derivatization of Porous Silicon with Alcohols Namyong Y. Kim and Paul E. Laibinis pp 2297–2298 DOI: 10.1021/ja963540y Supporting Info

Preferential Solvation of Neutral Species in Binary Solvent Mixtures Characterized by 1H NOESY NMR Spectroscopy Alessandro Bagno, Gianfranco Scorrano, and Stefano Stiz pp 2299–2300 DOI: 10.1021/ja963707n Supporting Info

Site-Selective N-Methylation of Peptides on Solid Support Stephen C. Miller and Thomas S. Scanlan pp 2301–2302 DOI: 10.1021/ja9635443 Supporting Info

Insights on β-Hairpin Stability in Aqueous Solution from Peptides with Enforced Type I‘ and Type II‘ β-Turns Tasir S. Haque and Samuel H. Gellman pp 2303–2304 DOI: 10.1021/ja963653h Supporting Info

Femtosecond Nucleophilic Substitution Reaction Dynamics D. Zhong, S. Ahmad, P. Y. Cheng, and A. H. Zewail pp 2305–2306 DOI: 10.1021/ja963879k

Intramolecular Catalysis of Amide Isomerization Christopher Cox, Victor G. Young, Jr., and Thomas Lectka pp 2307–2308 DOI: 10.1021/ja964017m Supporting Info

β-Lactam-Based Azomethine Ylide Reactivity. Expedient Synthesis of Carbapenams and Carbapenems Sarah R. Martel, Richard Wisedale, Timothy Gallagher, Lee D. Hall, Mary F. Mahon, Robert H. Bradbury, and Neil J. Hales pp 2309–2310 DOI: 10.1021/ja9637560 Supporting Info

Stark Spectroscopy of Donor−Acceptor Polyenes:  Correlation with Nonlinear Optical Measurements Gerold U. Bublitz, Rafael Ortiz, Claude Runser, Alain Fort, Marguerite Barzoukas, Seth R. Marder, and Steven G. Boxer pp 2311–2312 DOI: 10.1021/ja963672r

An Organometallic B12-Rotaxane and a B12-Dimer, Relaxed and Loaded Forms of a Molecular Spring Renate B. Hannak, Gerald Färber, Robert Konrat, and Bernhard Kräutler pp 2313–2314 DOI: 10.1021/ja962376b Supporting Info

Antibody Catalysis of BAc2 Aryl Carbamate Ester Hydrolysis:  A Highly Disfavored Chemical Process Paul Wentworth, Jr., Anita Datta, Simon Smith, Ann Marshall, Lynda J. Partridge, and G. Michael Blackburn pp 2315–2316 DOI: 10.1021/ja961625t Supporting Info

Properties of a Bifunctional Bacterial Antibiotic Resistance Enzyme That Catalyzes ATP-Dependent 2‘‘-Phosphorylation and Acetyl-CoA-Dependent 6‘-Acetylation of Aminoglycosides Eduardo Azucena, Ioannis Grapsas, and Shahriar Mobashery pp 2317–2318 DOI: 10.1021/ja964278w Supporting Info

18O Isotope Effects Support a Concerted Mechanism for Ribonuclease A Gwendolyn A. Sowa, Alvan C. Hengge, and W. W. Cleland pp 2319–2320 DOI: 10.1021/ja963974t

Thromboresistant Chemical Sensors Using Combined Nitric Oxide Release/Ion Sensing Polymeric Films Cecilia Espadas-Torre, Vanessa Oklejas, Kelly Mowery, and Mark E. Meyerhoff pp 2321–2322 DOI: 10.1021/ja963054a Supporting Info

Design of a Unique Protein Scaffold for Maquettes Brian R. Gibney, Francesc Rabanal, Jack J. Skalicky, A. Joshua Wand, and P. Leslie Dutton pp 2323–2324 DOI: 10.1021/ja963561s Supporting Info

A Readily Available Non-preorganized Neutral Acyclic Halide Receptor with an Unusual Nonplanar Binding Conformation Konstantinos Kavallieratos, Susan R. de Gala, David J. Austin, and Robert H. Crabtree pp 2325–2326 DOI: 10.1021/ja964018e Supporting Info

Synthesis of Stipiamide and a New Multidrug Resistance Reversal Agent, 6,7-Dehydrostipiamide Merritt B. Andrus and Salvatore D. Lepore pp 2327–2328 DOI: 10.1021/ja9641923 Supporting Info

Catalytic Asymmetric Epoxidation of α,β-Unsaturated Ketones Promoted by Lanthanoid Complexes Masahiro Bougauchi, Shizue Watanabe, Takayoshi Arai, Hiroaki Sasai, and Masakatsu Shibasaki pp 2329–2330 DOI: 10.1021/ja964037o Supporting Info

The Requirement for Manganese and Oxygen in the Isoniazid-Dependent Inactivation of Mycobacterium tuberculosis Enoyl Reductase Roger F. Zabinski and John S. Blanchard pp 2331–2332 DOI: 10.1021/ja9639731

The Chemistry of Trichlorosilyl Enolates. 2. Highly-Selective Asymmetric Aldol Additions of Ketone Enolates Scott E. Denmark, Ken-Tsung Wong, and Robert A. Stavenger pp 2333–2334 DOI: 10.1021/ja9636698 Supporting Info

A Fundamentally New, Simple, Stereospecific Synthesis of Oligosaccharides Containing the β-Mannopyranosyl and β-Rhamnopyranosyl Linkage György Hodosi and Pavol Ková pp 2335–2336 DOI: 10.1021/ja964021y Supporting Info

First Stable Germanetellones:  Syntheses and Crystal Structures of the Heaviest Germanium−Chalcogen Double-Bond Compound Norihiro Tokitoh, Tsuyoshi Matsumoto, and Renji Okazaki pp 2337–2338 DOI: 10.1021/ja963517c Supporting Info

Directed Synthesis of Chromium and Molybdenum Metallaborane Clusters. Preparation and Characterization of (Cp*Cr)2B5H9, (Cp*Mo)2B5H9, and (Cp*MoCl)2B4H10 Simon Aldridge, Thomas P. Fehlner, and Maoyu Shang pp 2339–2340 DOI: 10.1021/ja963864m Supporting Info

Two-Dimensional DNA-Mimetic Molecular Organizations at the Air−Water Interface Masatsugu Shimomura, Fumio Nakamura, Kuniharu Ijiro, Hirotaka Taketsuna, Masaru Tanaka, Hiroshi Nakamura, and Kiyosi Hasebe pp 2341–2342 DOI: 10.1021/ja962847u

Interfaces in Crystalline Materials By A. P. Sutton (University of Oxford) and R. W. Balluffi (MIT). Oxford University Press:  New York. 1995. xxvii + 819 pp. $165. ISBN 0-19-851385-2. W. T. Reynolds, Jr. p 2343 DOI: 10.1021/ja955377x

Comphrehensive Organic Functional Group Transformations, Volumes 1−7 Edited by Alan R. Katritzky, Otto Meth-Cohn, and Charles W. Rees. Elsevier:  Amsterdam. 1996. 7500+ pp. $6846.00. ISBN 0-08-040604-1. Richard Apodaca pp 2343–2344 DOI: 10.1021/ja965708l

Handbook of Lipid Research. Volume 8. Lipid Second Messengers Edited by Robert M. Bell (Duke University), John H. Exton (Vanderbilt University), and Stephen M. Prescott (University of Utah). Plenum:  New York and London. 1996. xiii + 316 pp. $89.50. ISBN 0-306-45174-3. Thurston E. Banks p 2344 DOI: 10.1021/ja965707t

Issue 10

Direct Determination of Hydration in the Lamellar to Inverted Hexagonal Transition of Phosphatidylethanolamine Sreelatha Channareddy, Sherilyn S. Jose, and Nathan Janes pp 2345–2347 DOI: 10.1021/ja9636451

Probable Role of Clavaminic Acid as the Terminal Intermediate in the Common Pathway to Clavulanic Acid and the Antipodal Clavam Metabolites Laura A. Egan, Robert W. Busby, Dirk Iwata-Reuyl, and Craig A. Townsend pp 2348–2355 DOI: 10.1021/ja963107o

Kinetics of C(2α)-Proton Abstraction from 2-Benzylthiazolium Salts Leading to Enamines Relevant to Catalysis by Thiamin-Dependent Enzymes Gabriel L. Barletta, Yu Zou, W. Phillip Huskey, and Frank Jordan pp 2356–2362 DOI: 10.1021/ja9633528 Supporting Info

Synthesis and Application of Unprotected Cyclic Peptides as Building Blocks for Peptide Dendrimers Lianshan Zhang and James P. Tam pp 2363–2370 DOI: 10.1021/ja9621105

Solvolytic Generation of Antiaromatic Cyclopentadienyl Cations Annete D. Allen, Mirjana Sumonja, and Thomas T. Tidwell pp 2371–2375 DOI: 10.1021/ja962494z Supporting Info

Chemical Implications for Antitumor and Antiviral Prostaglandins:  Reaction of Δ7-Prostaglandin A1 and Prostaglandin A1 Methyl Esters with Thiols Masaaki Suzuki, Makoto Mori, Terutake Niwa, Ryu Hirata, Kyoji Furuta, Toshihisa Ishikawa, and Ryoji Noyori pp 2376–2385 DOI: 10.1021/ja9628359 Supporting Info

Electrostatic Characterization of Enzyme Complexes:  Evaluation of the Mechanism of Catalysis of Dihydrofolate Reductase William R. Cannon, Barbara J. Garrison, and Stephen J. Benkovic pp 2386–2395 DOI: 10.1021/ja962621r Supporting Info

Crystal Structures of Oligodeoxyribonucleotides Containing 6‘-α-Methyl and 6‘-α-Hydroxy Carbocyclic Thymidines Stefan Portmann, Karl-Heinz Altmann, Nathalie Reynes, and Martin Egli pp 2396–2403 DOI: 10.1021/ja962406a Supporting Info

Total Synthesis of the Sesquiterpenoid Polyols (±)-Euonyminol and (±)-3,4-Dideoxymaytol, Core Constituents of Esters of the Celastraceae James D. White, Hyunik Shin, Tae-Seong Kim, and Neil S. Cutshall pp 2404–2419 DOI: 10.1021/ja963567h Supporting Info

Concerted and Stepwise Dissociative Electron Transfers. Oxidability of the Leaving Group and Strength of the Breaking Bond as Mechanism and Reactivity Governing Factors Illustrated by the Electrochemical Reduction of α-Substituted Acetophenones Claude P. Andrieux, Jean-Michel Savéant, André Tallec, Robert Tardivel, and Caroline Tardy pp 2420–2429 DOI: 10.1021/ja963674b Supporting Info

A Trisubstituted 1,4-Diazepine-3-one-Based Dipeptidomimetic:  Conformational Characterization by NMR and Computer Simulation Maria Pellegrini, Iris S. Weitz, Michael Chorev, and Dale F. Mierke pp 2430–2436 DOI: 10.1021/ja963144f Supporting Info

1,3-Allylic Strain as a Control Element in the Paternò−Büchi Reaction of Chiral Silyl Enol Ethers:  Synthesis of Diastereomerically Pure Oxetanes Containing Four Contiguous Stereogenic Centers Thorsten Bach, Kai Jödicke, Kristian Kather, and Roland Fröhlich pp 2437–2445 DOI: 10.1021/ja963827v Supporting Info

Total Synthesis of (+)-Isolaurepinnacin. Use of Acetal-Alkene Cyclizations To Prepare Highly Functionalized Seven-Membered Cyclic Ethers Daniel Berger, Larry E. Overman, and Paul A. Renhowe pp 2446–2452 DOI: 10.1021/ja964080b Supporting Info

New Photoactivated Protecting Groups. 6. p-Hydroxyphenacyl:  A Phototrigger for Chemical and Biochemical Probes1,2 Chan-Ho Park and Richard S. Givens pp 2453–2463 DOI: 10.1021/ja9635589 Supporting Info

Photoinduced Oxidation of Horseradish Peroxidase Johan Berglund, Torbjörn Pascher, Jay R. Winkler, and Harry B. Gray pp 2464–2469 DOI: 10.1021/ja961026m

Multiple-Edge XAS Studies of Cyanide-Bridged Iron−Copper Molecular Assemblies Relevant to Cyanide-Inhibited Heme−Copper Oxidases Using Four-Body Multiple-Scattering Analysis Hua Holly Zhang, Adriano Filipponi, Andrea Di Cicco, Michael J. Scott, R. H. Holm, Britt Hedman, and Keith O. Hodgson pp 2470–2478 DOI: 10.1021/ja963300i

A Metal-Chelating Lipid for 2D Protein Crystallization via Coordination of Surface Histidines Daniel W. Pack, Guohua Chen, Kevin M. Maloney, Chao-Tsen Chen, and Frances H. Arnold pp 2479–2487 DOI: 10.1021/ja964099e

A Comparison of the Lability of Mononuclear Octahedral and Dinuclear Triple-Helical Complexes of Cobalt(II) Loïc J. Charbonnière, Alan F. Williams, Urban Frey, André E. Merbach, Philippe Kamalaprija, and Olivier Schaad pp 2488–2496 DOI: 10.1021/ja963693l Supporting Info

Syntheses and Characterizations of Chiral Tetrahedral Cobalt Phosphates with Zeolite ABW and Related Frameworks Pingyun Feng, Xianhui Bu, Sarah H. Tolbert, and Galen D. Stucky pp 2497–2504 DOI: 10.1021/ja9634841 Supporting Info

Oligomerization Versus Polymerization of Texn- in the Polytelluride Compound BaBiTe3. Structural Characterization, Electronic Structure, and Thermoelectric Properties Duck-Young Chung, Stéphane Jobic, Tim Hogan, Carl R. Kannewurf, Raymond Brec, Jean Rouxel, and Mercouri G. Kanatzidis pp 2505–2515 DOI: 10.1021/ja9636496 Supporting Info

Spin State Change in Organometallic Reactions. Experimental and MP2 Theoretical Studies of the Thermodynamics and Kinetics of the CO and N2 Addition to Spin Triplet Cp*MoCl(PMe3)2 D. Webster Keogh and Rinaldo Poli pp 2516–2523 DOI: 10.1021/ja960786u

Molecular Architecture via Coordination:  Self-Assembly, Characterization, and Host−Guest Chemistry of Mixed, Neutral-Charged, Pt−Pt and Pt−Pd Macrocyclic Tetranuclear Complexes. X-ray Crystal Structure of Cyclobis[[cis- Pt(dppp)(4-ethynylpyridine)2][cis-Pd2+(PEt3)22-OSO2CF3]] Jeffery A. Whiteford, Cuong V. Lu, and Peter J. Stang pp 2524–2533 DOI: 10.1021/ja9635286 Supporting Info

Effects of Matrix Structure/Acidity on Ion Formation in Matrix-Assisted Laser Desorption Ionization Mass Spectrometry Mary Gimon-Kinsel, Lisa M. Preston-Schaffter, Gary R. Kinsel, and David H. Russell pp 2534–2540 DOI: 10.1021/ja960269b

Molecular Dynamics Simulation Study of the B-States of Solvated Carbon Monoxymyoglobin Jianpeng Ma, Shuanghong Huo, and John E. Straub pp 2541–2551 DOI: 10.1021/ja9608252

A New Look at the Classical Beckmann Rearrangement:  A Strong Case of Active Solvent Effect Minh Tho Nguyen, Greet Raspoet, and Luc G. Vanquickenborne pp 2552–2562 DOI: 10.1021/ja962364q Supporting Info

Control of Spin State by Ring Conformation of Iron(III) Porphyrins. A Novel Model for the Quantum-Mixed Intermediate Spin State of Ferric Cytochrome c‘ from Photosynthetic Bacteria Ru-Jen Cheng, Ping-Yu Chen, Pong-Ren Gau, Chun-Chia Chen, and Shie-Ming Peng pp 2563–2569 DOI: 10.1021/ja962474x Supporting Info

A Molecular Mechanics Study of the Cholesteryl Acetate Crystal:  Evaluation of Interconversion among rg, rz, and rα Bond Lengths Buyong Ma, Jenn-Huei Lii, Kuohsiang Chen, and Norman L. Allinger pp 2570–2573 DOI: 10.1021/ja9629524 Supporting Info

Stabilization of U5+ in Rb4U4P4Se26. An Actinide Compound with a Mixed Selenophosphate/Polyselenide Framework and Ion-Exchange Properties Konstantinos Chondroudis and Mercouri G. Kanatzidis pp 2574–2575 DOI: 10.1021/ja963673j Supporting Info

Microbial Resistance to Mitomycins Involves a Redox Relay Mechanism David A. Johnson, Paul R. August, Cedric Shackleton, Hung-wen Liu, and David H. Sherman pp 2576–2577 DOI: 10.1021/ja963880j Supporting Info

Automated Recognition, Sorting, and Covalent Self-Assembly by Predisposed Building Blocks in a Mixture Stuart J. Rowan, Darren G. Hamilton, Paul A. Brady, and Jeremy K. M. Sanders pp 2578–2579 DOI: 10.1021/ja963320k

The Mechanism of Addition of an Ir−OH bond to Ethylene. Catalytic Tandem Activation by Two [η5-Cp*(Ph)IrPMe3]+ Complex Fragments Joachim C. M. Ritter and Robert G. Bergman pp 2580–2581 DOI: 10.1021/ja9636653 Supporting Info

Very Large Counteranion Modulation of Cationic Metallocene Polymerization Activity and Stereoregulation by a Sterically Congested (Perfluoroaryl)fluoroaluminate You-Xian Chen, Charlotte L. Stern, and Tobin J. Marks pp 2582–2583 DOI: 10.1021/ja963834j Supporting Info

Parallel Kinetic Resolution Edwin Vedejs and Xinhai Chen pp 2584–2585 DOI: 10.1021/ja963666v Supporting Info

The Anti-Selective Boron-Mediated Asymmetric Aldol Reaction of Carboxylic Esters Atsushi Abiko, Ji-Feng Liu, and Satoru Masamune pp 2586–2587 DOI: 10.1021/ja963754f Supporting Info

The Dendritic Effect in Molecular Recognition:  Ferrocene Dendrimers and Their Use as Supramolecular Redox Sensors for the Recognition of Small Inorganic Anions Christine Valério, Jean-Luc Fillaut, Jaime Ruiz, Joëlle Guittard, Jean-Claude Blais, and Didier Astruc pp 2588–2589 DOI: 10.1021/ja964127t Supporting Info

Resonance Raman Characterization of the Molybdenum Center in Sulfite Oxidase:  Identification of MoO Stretching Modes Shannon D. Garton, Robert M. Garrett, K. V. Rajagopalan, and Michael K. Johnson pp 2590–2591 DOI: 10.1021/ja963931c

Molecular Recognition of the Cyclic Water Trimer in the Solid State Leonard R. MacGillivray and Jerry L. Atwood pp 2592–2593 DOI: 10.1021/ja962955g Supporting Info

Identification of the Magnesium−Histidine Stretching Vibration of the Bacteriochlorophyll Cofactors in Photosynthetic Reaction Centers via 15N-Labeling of the Histidines Kazimierz Czarnecki, Veeradej Chynwat, Joy P. Erickson, Harry A. Frank, and David F. Bocian pp 2594–2595 DOI: 10.1021/ja964107r

17O NMR Study of Chromium(VI) Ions in Water J. Am. Chem. Soc. 1996, 118, 7969−7980 Nicola E. Brasch, David A. Buckingham, A. Bram Evans, and Charles R. Clark p 2596 DOI: 10.1021/ja9654600

Advances in Heterocyclic Natural Product Synthesis. Vol. 3 Edited by William H. Pearson (University of Michigan). JAI Press, Inc.:  Greenwich, CT. 1996. ix + 288 pp. $97.50. ISBN 1-55938-426-3. Regina Zibuck p 2596 DOI: 10.1021/ja965583k

Comprehensive Supramolecular Chemistry. 11 Volumes. Editor-in-chief Jean-Marie Lehn (Université Louis Pasteur, France). Edited by Jerry L. Atwood (University of Missouri), J. Eric Davies (University of Lancaster, U.K.), David D. Macnicol (University of Glasgow), and Fritz Vogtle (Friedrich-Willhelms-Universität, Germany). Pergamon:  Oxford. 1996. 6672 pp. $4320. ISBN 0-08-040610-6 (set). David Flaxbart p 2596 DOI: 10.1021/ja9657723

Issue 11

Asymmetric Photocycloadditions with an Optically Active Allenylsilane:  Trimethylsilyl as a Removable Stereocontrolling Group for the Enantioselective Synthesis of exo-Methylenecyclobutanes Mary S. Shepard and Erick M. Carreira pp 2597–2605 DOI: 10.1021/ja963436g

Interactions with Natural Polyamines and Thermal Stability of DNA. A DSC Study and a Theoretical Reconsideration Diego Esposito, Pompea Del Vecchio, and Guido Barone pp 2606–2613 DOI: 10.1021/ja962449r Supporting Info

Structure−Reactivity Relationship in Interlocked Molecular Compounds and in Their Supramolecular Model Complexes Masumi Asakawa, Christopher L. Brown, Stephan Menzer, Françisco M. Raymo, J. Fraser Stoddart, and David J. Williams pp 2614–2627 DOI: 10.1021/ja962937z Supporting Info

Evidence for Divalent Iodine (9-I-2) Radical Intermediates in the Thermolysis of (tert-Butylperoxy)iodanes. An Unusually Efficient Deiodination of o-Iodocumyl Alcohols by Cyclohexyl Radicals1 Darko Dolenc and Božo Plesniar pp 2628–2632 DOI: 10.1021/ja9636404 Supporting Info

The Heterocyclic Diradical Benzo-1,2:4,5-bis(1,3,2-dithiazolyl). Electronic, Molecular and Solid State Structure T. M. Barclay, A. W. Cordes, R. H. de Laat, J. D. Goddard, R. C. Haddon, D. Y. Jeter, R. C. Mawhinney, R. T. Oakley, T. T. M. Palstra, G. W. Patenaude, R. W. Reed, and N. P. C. Westwood pp 2633–2641 DOI: 10.1021/ja9636294 Supporting Info

High-Yield, Radical-Initiated Oxidative Functionalization of Ethane by Perfluorocarboxylic Acid Anhydrides. Role of Metal Ions in Catalytic Alkane Oxidations in the Presence of Perfluorocarboxylic Acid Anhydrides Terrence Hogan and Ayusman Sen pp 2642–2646 DOI: 10.1021/ja964068j

High Nuclearity Ruthenium Carbonyl Cluster Chemistry. 5.1 Local Density Functional, Electronic Spectroscopy, Magnetic Susceptibility, and Electron Paramagnetic Resonance Studies on (Carbido)decaruthenium Carbonyl Clusters Marie P. Cifuentes, Mark G. Humphrey, John E. McGrady, Paul J. Smith, Robert Stranger, Keith S. Murray, and Boujemaa Moubaraki pp 2647–2655 DOI: 10.1021/ja9602197

Construction of Interlocking and Threaded Rings Using Two Different Transition Metals as Templating and Connecting Centers:  Catenanes and Rotaxanes Incorporating Ru(terpy)2-Units in Their Framework Diego J. Cárdenas, Pablo Gaviña, and Jean-Pierre Sauvage pp 2656–2664 DOI: 10.1021/ja963955j

Rational Synthesis of Metastable Skutterudite Compounds Using Multilayer Precursors Marc D. Hornbostel, Edward J. Hyer, James Thiel, and David C. Johnson pp 2665–2668 DOI: 10.1021/ja964084g

Diffraction Studies of Photoexcited Crystals:  Metastable Nitrosyl-Linkage Isomers of Sodium Nitroprusside M. D. Carducci, M. R. Pressprich, and P. Coppens pp 2669–2678 DOI: 10.1021/ja9625743 Supporting Info

Logic Operations at the Molecular Level. An XOR Gate Based on a Molecular Machine Alberto Credi, Vincenzo Balzani, Steven J. Langford, and J. Fraser Stoddart pp 2679–2681 DOI: 10.1021/ja963572l

Structure and Dynamics in Alkanethiolate Monolayers Self-Assembled on Gold Nanoparticles:  A DSC, FT-IR, and Deuterium NMR Study Antonella Badia, Louis Cuccia, Linette Demers, Fred Morin, and R. Bruce Lennox pp 2682–2692 DOI: 10.1021/ja963571t Supporting Info

Intercalation of Inorganic Fullerene-like Structures Yields Photosensitive Films and New Tips for Scanning Probe Microscopy M. Homyonfer, B. Alperson, Y. Rosenberg, L. Sapir, S. R. Cohen, G. Hodes, and R. Tenne pp 2693–2698 DOI: 10.1021/ja963585z

A Conformational Study of 2-Oxanol:  Insight into the Role of Ring Distortion on Enzyme-Catalyzed Glycosidic Bond Cleavage Brian J. Smith pp 2699–2706 DOI: 10.1021/ja9623020 Supporting Info

Inclusion of Loss of Translational and Rotational Freedom in Theoretical Estimates of Free Energies of Binding. Application to a Complex of Benzene and Mutant T4 Lysozyme Jan Hermans and Lu Wang pp 2707–2714 DOI: 10.1021/ja963568+

A Spectroscopic Study of the Epidermal Ultraviolet Chromophore trans-Urocanic Acid Kerry M. Hanson, Bulang Li, and John D. Simon pp 2715–2721 DOI: 10.1021/ja963440s

Marcus Theory of a Parallel Effect on α for Hydride Transfer Reaction between NAD+ Analogues In-Sook Han Lee, Eun Hee Jeoung, and Maurice M. Kreevoy pp 2722–2728 DOI: 10.1021/ja963768l

Fortuitously Superimposed Lattice Plane Secondary Diffraction from Crystalline Colloidal Arrays Lei Liu, Pusheng Li, and Sanford A. Asher pp 2729–2732 DOI: 10.1021/ja963885g

Remote Effects in Macrolide Formation through Ring-Forming Olefin Metathesis:  An Application to the Synthesis of Fully Active Epothilone Congeners Dongfang Meng, Dai-Shi Su, Aaron Balog, Peter Bertinato, Erik J. Sorensen, Samuel J. Danishefsky, Yu-Huang Zheng, Ting-Chao Chou, Lifeng He, and Susan B. Horwitz pp 2733–2734 DOI: 10.1021/ja964275j Supporting Info

A Simple Divergence from Asymmetric Cyclopropane to Lactone Annulation Barry M. Trost, Shinji Tanimori, and Patrick T. Dunn pp 2735–2736 DOI: 10.1021/ja963459v Supporting Info

Molecular Tectonics. Porous Hydrogen-Bonded Networks with Unprecedented Structural Integrity Philippe Brunet, Michel Simard, and James D. Wuest pp 2737–2738 DOI: 10.1021/ja963905e Supporting Info

Visualization of Critical pH-Controlled Gating of a Porous Membrane Grafted with Polyelectrolyte Brushes Yoshihiro Ito, Yong Soon Park, and Yukio Imanishi pp 2739–2740 DOI: 10.1021/ja9641057

Molecular Association by the Radiation Pressure of a Focused Laser Beam:  Fluorescence Characterization of Pyrene-Labeled PNIPAM J. Hofkens, J. Hotta, K. Sasaki, and H. MasuharaT. Taniguchi and T. Miyashita pp 2741–2742 DOI: 10.1021/ja963830e

Significance of Borane Tuning in Titanium-Catalyzed Borylation Chemistry Douglas H. Motry, Aimee G. Brazil, and Milton R. Smith, III pp 2743–2744 DOI: 10.1021/ja961111u Supporting Info

Photoinduced Reduction and Carbonylation of Organic Chlorides with Samarium Diiodide Akiya Ogawa, Yukihito Sumino, Taizoh Nanke, Syoji Ohya, Noboru Sonoda, and Toshikazu Hirao pp 2745–2746 DOI: 10.1021/ja963117p Supporting Info

Oxygen Surface Exchange and Diffusion in the New Perovskite Oxide Ion Conductor LaGaO3 Tatsumi Ishihara, John A. Kilner, Miho Honda, and Yusaku Takita pp 2747–2748 DOI: 10.1021/ja964128l

Self-Assembly and Polymerization of Epoxy Resin-Amphiphilic Block Copolymer Nanocomposites Marc A. Hillmyer, Paul M. Lipic, Damian A. Hajduk, Kristoffer Almdal, and Frank S. Bates pp 2749–2750 DOI: 10.1021/ja963622m

Crown Ether Pillared and Functionalized Layered Zirconium Phosphonates:  A New Strategy to Synthesize Novel Ion Selective Materials Baolong Zhang and Abraham Clearfield pp 2751–2752 DOI: 10.1021/ja9634583 Supporting Info

“Fixation” of Dinitrogen by Molybdenum and the Formation of a Trigonal Planar Iron−Tris[molybdenum(dinitrogen)] Complex Myra B. O'Donoghue, Nadia C. Zanetti, William M. Davis, and Richard R. Schrock pp 2753–2754 DOI: 10.1021/ja963822y Supporting Info

The Pinene Path to Taxanes. 5. Stereocontrolled Synthesis of a Versatile Taxane Precursor Paul A. Wender, Neil F. Badham, Simon P. Conway, Paul E. Floreancig, Timothy E. Glass, Christian Gränicher, Jonathan B. Houze, Jan Jänichen, Daesung Lee, Daniel G. Marquess, Paul L. McGrane, Wei Meng, Thomas P. Mucciaro, Michel Mühlebach, Michael G. Natchus, Holger Paulsen, David B. Rawlins, Jeffrey Satkofsky, Anthony J. Shuker, James C. Sutton, Richard E. Taylor, and Katsuhiko Tomooka pp 2755–2756 DOI: 10.1021/ja9635387 Supporting Info

The Pinene Path to Taxanes. 6. A Concise Stereocontrolled Synthesis of Taxol Paul A. Wender, Neil F. Badham, Simon P. Conway, Paul E. Floreancig, Timothy E. Glass, Jonathan B. Houze, Nancy E. Krauss, Daesung Lee, Daniel G. Marquess, Paul L. McGrane, Wei Meng, Michael G. Natchus, Anthony J. Shuker, James C. Sutton, and Richard E. Taylor pp 2757–2758 DOI: 10.1021/ja963539z Supporting Info

Transition Metal−Amine Initiators for Preparation of Well-Defined Poly(γ-benzyl l-glutamate) Timothy J. Deming pp 2759–2760 DOI: 10.1021/ja962625w Supporting Info

O2 Evolution and Permanganate Formation from High-Valent Manganese Complexes Julian Limburg, Gary W. Brudvig, and Robert H. Crabtree pp 2761–2762 DOI: 10.1021/ja963899m Supporting Info

Solvent Dependence on the Intramolecular Excited-State Proton or Hydrogen Atom Transfer in Hypocrellin K. Das, D. S. English, and J. W. Petrich pp 2763–2764 DOI: 10.1021/ja962923t

Facilitated Transport of Small Carbohydrates through Plasticized Cellulose Triacetate Membranes. Evidence for Fixed-Site Jumping Transport Mechanism Jennifer A. Riggs and Bradley D. Smith pp 2765–2766 DOI: 10.1021/ja964103m Supporting Info

Bridgehead Oxiranyl Sesquiterpenoids. Asymmetric Total Synthesis of (−)-Salsolene Oxide Leo A. Paquette, Li-Qiang Sun, Timothy J. N. Watson, Dirk Friedrich, and Brett T. Freeman pp 2767–2768 DOI: 10.1021/ja964221+ Supporting Info

Issue 12

Self-Assembled Ionophores. An Isoguanosine-K+ Octamer Sampath Tirumala and Jeffery T. Davis pp 2769–2776 DOI: 10.1021/ja963213q

Molecular Recognition: The Demonstration of 1,3-Bis[(pyrid-2-ylamino)carbonyl]adamantane as an Exceptionally Versatile Assembler of One-Dimensional Motifs Isabella L. Karle, Darshan Ranganathan, and V. Haridas pp 2777–2783 DOI: 10.1021/ja9623121 Supporting Info

Studies on the Mechanism of Ribonucleotide Reductases Roman Lenz and Bernd Giese pp 2784–2794 DOI: 10.1021/ja962974q

Chemistry of C-2 Glyceryl Radicals:  Indications for a New Mechanism of Lipid Damage Stephan N. Müller, Rohit Batra, Martin Senn, Bernd Giese, Micail Kisel, and Oleg Shadyro pp 2795–2803 DOI: 10.1021/ja9641416 Supporting Info

Comparison of Isomerization Rates of the Metal Carbonyl Cluster Cp*IrCp2Co2(CO)3 in Three Oxidation States (47e, 48e, 49e):  Dramatic Rate Enhancements in the Odd-Electron Species William E. Geiger, Michael J. Shaw, Martin Wünsch, Craig E. Barnes, and Frank Holger Foersterling pp 2804–2811 DOI: 10.1021/ja963476k Supporting Info

Stereochemical Effect of Even−Odd Connecting Links on Supramolecular Assemblies Made of 1-Glucosamide Bolaamphiphiles Toshimi Shimizu and Mitsutoshi Masuda pp 2812–2818 DOI: 10.1021/ja961226y Supporting Info

Nitrilimines:  Evidence for the Allenic Structure in Solution, Experimental and Ab Initio Studies of the Barrier to Racemization, and First Diastereoselective [3 + 2]-Cycloaddition Jean-Luc Fauré, Régis Réau, Ming Wah Wong, Rainer Koch, Curt Wentrup, and Guy Bertrand pp 2819–2824 DOI: 10.1021/ja9637661

X-ray-Induced Transformation of o-Vinylbenzaldehyde and 2-Methylbenzocyclobutenone to an o-Quinoid Ketene and Its Radical Cation Krzysztof Huben, Zhendong Zhu, Thomas Bally, and Jerzy Gebicki pp 2825–2831 DOI: 10.1021/ja964243w

Stabilized and Persistent Allenylketenes Wenwei Huang, Decai Fang, Karen Temple, and Thomas T. Tidwell pp 2832–2838 DOI: 10.1021/ja963496m Supporting Info

Metalloporphyrin Mixed-Valence π-Cation Radicals:  Solution Stability and Properties Kristin E. Brancato-Buentello, Seong-Joo Kang, and W. Robert Scheidt pp 2839–2846 DOI: 10.1021/ja9616950

Synthesis and Characterization of Lewis Base-Free, σ-Bonded Lithium Aryls:  A Structural Model for Unsolvated Phenyllithium in the Solid State Rudolf J. Wehmschulte and Philip P. Power pp 2847–2852 DOI: 10.1021/ja962889i Supporting Info

Photochemistry of Roussin's Red Salt, Na2[Fe2S2(NO)4], and of Roussin's Black Salt, NH4[Fe4S3(NO)7]. In Situ Nitric Oxide Generation To Sensitize γ-Radiation Induced Cell Death1 James Bourassa, William DeGraff, Setsuko Kudo, David A. Wink, James B. Mitchell, and Peter C. Ford pp 2853–2860 DOI: 10.1021/ja963914n

Selective Guest Binding by Tailored Channels in a 3-D Porous Zinc(II)−Benzenetricarboxylate Network O. M. Yaghi, Charles E. Davis, Guangming Li, and Hailian Li pp 2861–2868 DOI: 10.1021/ja9639473 Supporting Info

Synthesis, Characterization, Electronic Structure, and Bonding of Heteroatomic Deltahedral Clusters:  Na49Cd58.5Sn37.5, A Network Structure Containing the First Empty Icosahedron without a Group 13 Element and the Largest closo-Deltahedron Evgeny Todorov and Slavi C. Sevov pp 2869–2876 DOI: 10.1021/ja964077s Supporting Info

Theory of Substituent Effects on Pericyclic Reaction Rates:  Alkoxy Substituents in the Claisen Rearrangement Hi Young Yoo and K. N. Houk pp 2877–2884 DOI: 10.1021/ja9605026

Ab Initio Calculations of the Geometry and Vibrational Frequencies of the Triplet State of Tungsten Pentacarbonyl Amine:  A Model for the Unification of the Preresonance Raman and the Time-Resolved Infrared Experiments Snežana Zarić, Marc Couty, and Michael B. Hall pp 2885–2888 DOI: 10.1021/ja9612662

Computational Insight into the Chemistry of β-(Phosphatoxy)alkyl Radicals:  [3,2]- and [1,2]-Phosphatoxy Rearrangements and a New Pathway for syn-Elimination of Phosphate Hendrik Zipse pp 2889–2893 DOI: 10.1021/ja9618762 Supporting Info

Structure, Vibrational Frequencies, and Stability of a Reactive Intermediate:  FOONO Theodore S. Dibble and Joseph S. Francisco pp 2894–2895 DOI: 10.1021/ja952332n

Theoretical and (e,2e) Experimental Investigation into the Complete Valence Electronic Structure of [1.1.1]Propellane W. Adcock M. J. Brunger, C. I. Clark, I. E. McCarthy, M. T. Michalewicz, W. von Niessen, E. Weigold, and D. A. Winkler pp 2896–2904 DOI: 10.1021/ja963058f

Selective Reduction of NOx with Propene under Oxidative Conditions:  Nature of the Active Sites on Copper-Based Catalysts C. Márquez-Alvarez, I. Rodríguez-Ramos, A. Guerrero-Ruiz, G. L. Haller, and M. Fernández-García pp 2905–2914 DOI: 10.1021/ja961629y

15N Nuclear Magnetic Resonance Spectroscopy. Changes in Nuclear Overhauser Effects and T1 with Viscosity Alexander Wei, Mary Katherine Raymond, and John D. Roberts pp 2915–2920 DOI: 10.1021/ja963263v

Oxidation of Guanine in DNA by Ru(phen)2(dppz)3+ Using the Flash-Quench Technique E. D. A. Stemp, M. R. Arkin, and J. K. Barton pp 2921–2925 DOI: 10.1021/ja963606p

Identification of Photoexcited Singlet Quinones and Their Ultrafast Electron-Transfer vs Intersystem-Crossing Rates Stephan M. Hubig, T. Michael Bockman, and Jay K. Kochi pp 2926–2935 DOI: 10.1021/ja963907z

Photoenzymic Repair of the DNA 6−4 PhotoproductA Density Functional Theory and Semiempirical Study Paul F. Heelis and Shubin Liu pp 2936–2937 DOI: 10.1021/ja9639877

Identification of Zr(III) Allyl Species in the Negishi System [Cp2ZrCl2, 2LiBu]. An ESR Study Frédérique Soleil and Robert Choukroun pp 2938–2939 DOI: 10.1021/ja962355h Supporting Info

The First Structure Determination of a Possible Intermediate in Ruthenium 2,2‘-Bis(diphenylphosphino)-1,1‘-binaphthyl Catalyzed Hydrogenation with a Prochiral Group Bound to Ruthenium. Stoichiometric Reaction of a Chiral Ruthenium−Carbon Bond with Dihydrogen Gas Jason A. Wiles and Steven H. BergensVictor G. Young pp 2940–2941 DOI: 10.1021/ja964014+ Supporting Info

Ligand-Unsupported Metal−Metal (M = Cu, Ag) Interactions between Closed-Shell d10 Trinuclear Systems Kuljeet Singh, Jeffrey R. Long, and Pericles Stavropoulos pp 2942–2943 DOI: 10.1021/ja963664a Supporting Info

Total Synthesis of the Potent Antitumor Agent Roseophilin:  A Concise Approach to the Macrotricyclic Core Alois Fürstner and Holger Weintritt pp 2944–2945 DOI: 10.1021/ja963795b Supporting Info

Synthesis of C59(CHPh2)N from (C59N)2 and C59HN. The First Derivatization of C59N Cheryl Bellavia-Lund, Rosario González, Jan Cornelis Hummelen, Robin G. Hicks, Angela Sastre, and Fred Wudl pp 2946–2947 DOI: 10.1021/ja964447c Supporting Info

Highly Efficient Phosphate Diester Transesterification by a Calix[4]arene-Based Dinuclear Zinc(II) Catalyst Peter Molenveld, Susan Kapsabelis, Johan F. J. Engbersen, and David N. Reinhoudt pp 2948–2949 DOI: 10.1021/ja9638770

Rhodium-Catalyzed Asymmetric [4 + 1] Cycloaddition Masahiro Murakami, Kenichiro Itami, and Yoshihiko Ito pp 2950–2951 DOI: 10.1021/ja964259m Supporting Info

An Infinite 2D Polyrotaxane Network in Ag2(bix)3(NO3)2 (bix = 1,4-Bis(imidazol-1-ylmethyl)benzene) Bernard F. Hoskins, Richard Robson, and Damian A. Slizys pp 2952–2953 DOI: 10.1021/ja9642626 Supporting Info

Catalytic Synthesis of the P16 Macrocycle (C6H4P2)8 Nola Etkin, Maria C. Fermin, and Douglas W. Stephan pp 2954–2955 DOI: 10.1021/ja964203s Supporting Info

Versatile Synthetic Route to and DSC Analysis of Dehydrobenzoannulenes:  Crystal Structure of a Heretofore Inaccessible [20]Annulene Derivative Michael M. Haley, Michael L. Bell, Jamieson J. English, Charles A. Johnson, and Timothy J. R. Weakley pp 2956–2957 DOI: 10.1021/ja964048h Supporting Info

Selective C−C Bond Formation on the First Ketene−Alkyne Complexes H. C. Lo and Douglas B. Grotjahn pp 2958–2959 DOI: 10.1021/ja963750a Supporting Info

Raman Evidence for a Trapped-Valence FeII−O−FeIII Complex Formed from an Outer-Sphere Reaction of Diiron(II) with Dioxygen Jonathan D. Cohen, Sonha Payne, Karl S. Hagen, and Joann Sanders-Loehr pp 2960–2961 DOI: 10.1021/ja9638871 Supporting Info

Solvent Effects on the Bond Length Alternation and Absorption Energy of Conjugated Compounds Jiali Gao and Cristobal Alhambra pp 2962–2963 DOI: 10.1021/ja9700358

KR OnDisc Encyclopedia of Physical Science and Technology, 2E CD-ROM Academic Press, Inc.:  525 B Street, Suite 1900, San Diego, California 92101-4495. Tel:  619-699-6410. $2995.00. ISBN 0-12-000200-0. 1995. Carol Gill and Michael P. Doyle p 2964 DOI: 10.1021/ja965922+

Radical and Concerted Mechanisms in Oxidations of Amines, Sulfides, and Alkenes by Peroxynitrite, Peroxynitrous Acid, and the Peroxynitrite−CO2 Adduct:  Density Functional Theory Transition Structures and Energetics J. Am. Chem. Soc. 1996, 118, 13002 K. N. Houk, Kevin R. Condroski, and William A. Pryor p 2964 DOI: 10.1021/ja9754012

Issue 13

A Comparison of DNA Cleavage by Neocarzinostatin Chromophore and Its Aglycon:  Evaluating the Role of the Carbohydrate Residue Andrew G. Myers, Michael E. Kort, and Marlys Hammond pp 2965–2972 DOI: 10.1021/ja9641719

Linking Diversity in Evolutionary Origin and Stereospecificity for Enoyl Thioester Reductases:  Determination and Interpretation of the Novel Stereochemical Course of Reaction Catalyzed by Crotonyl CoA Reductase from Streptomyces collinus Haibin Liu, Kimberlee K. Wallace, and Kevin A. Reynolds pp 2973–2979 DOI: 10.1021/ja961047g

Excited-State Photophysics of Hypericin and Its Hexamethoxy Analog:  Intramolecular Proton Transfer as a Nonradiative Process in Hypericin D. S. English, W. Zhang, G. A. Kraus, and J. W. Petrich pp 2980–2986 DOI: 10.1021/ja962476h

Conformations, Unfolding, and Refolding of Apomyoglobin in Vacuum:  An Activation Barrier for Gas-Phase Protein Folding Konstantin B. Shelimov and Martin F. Jarrold pp 2987–2994 DOI: 10.1021/ja962914k

Anomalous Second-Order Nonlinear Optical Response of In-Plane Poled Glassy Polymers. Spectroscopic and Theoretical Support for the Importance of Charged Chromophore Aggregates Shlomo Yitzchaik, Santo Di Bella, Paul M. Lundquist, George K. Wong, and Tobin J. Marks pp 2995–3002 DOI: 10.1021/ja963489y

Charge Distribution and Second-Order Nonlinear Optical Response of Charged Centrosymmetric Chromophore Aggregates. An ab Initio Electronic Structure Study of p-Nitroaniline Dimers Santo Di Bella, Giuseppe Lanza, Ignazio Fragalà, Shlomo Yitzchaik, Mark A. Ratner, and Tobin J. Marks pp 3003–3006 DOI: 10.1021/ja963490x

A Model of the Interaction of Substrates and Inhibitors with Xanthine Oxidase Giulio Rastelli, Luca Costantino, and Albano Albasini pp 3007–3016 DOI: 10.1021/ja962309h

Order in Microcontact Printed Self-Assembled Monolayers N. B. Larsen, H. Biebuyck, E. Delamarche, and B. Michel pp 3017–3026 DOI: 10.1021/ja964090c

Induction of Smectic Layering in Nematic Liquid Crystals Using Immiscible Components. 1. Laterally Attached Side-Chain Liquid Crystalline Poly(norbornene)s and Their Low Molar Mass Analogs with Hydrocarbon/Fluorocarbon Substituents Stephen V. Arehart and Coleen Pugh pp 3027–3037 DOI: 10.1021/ja963687p

Enhanced Channeling of the Squarate Cascade through the Dianionic Oxy-Cope Option. Oxy Substitution Markedly Augments Syn Delivery of the Second Alkenyllithium Leo A. Paquette, Lung Huang Kuo, and Julien Doyon pp 3038–3047 DOI: 10.1021/ja964140d

Probing the Factors That Stabilize Mononuclear Rhodium(II) Bis(phosphine), η6-Arene Complexes with Piano-Stool Geometries Elizabeth T. Singewald, Caroline S. Slone, Charlotte L. Stern, Chad A. Mirkin, Glenn P. A. Yap, Louise M. Liable-Sands, and Arnold L. Rheingold pp 3048–3056 DOI: 10.1021/ja963384v

Coenzyme B12 Chemical Precedent Studies:  Probing the Role of the Imidazole Base-on Motif Found in B12-Dependent Methylmalonyl-CoA Mutase Jeanne M. Sirovatka and Richard G. Finke pp 3057–3067 DOI: 10.1021/ja963380q

A Tris(ZnII−1,4,7,10-tetraazacyclododecane) Complex as a New Receptor for Phosphate Dianions in Aqueous Solution Eiichi Kimura, Shin Aoki, Tohru Koike, and Motoo Shiro pp 3068–3076 DOI: 10.1021/ja9640408 Supporting Info

Theoretical Studies of Inorganic and Organometallic Reaction Mechanisms. 11. Migratory Insertion of Coordinated Nitric Oxide into Cobalt−Carbon Bonds Shuqiang Niu and Michael B. Hall pp 3077–3086 DOI: 10.1021/ja961995h

First X-ray Crystallographic Study of a Benzyl Cation, Cumyl Hexafluoroantimonate(V), and Structural Implications Thomas Laube, George A. Olah, and Robert Bau pp 3087–3092 DOI: 10.1021/ja9631514 Supporting Info

Kinetics of F- + CH3Cl SN2 Nucleophilic Substitution Haobin Wang and William L. Hase pp 3093–3102 DOI: 10.1021/ja962622j

Mechanism of C−H Activation by Diiron Methane Monooxygenases:  Quantum Chemical Studies Per E. M. Siegbahn and Robert H. Crabtree pp 3103–3113 DOI: 10.1021/ja963939m

Electronic Transition Moments of 2-Aminopurine Anders Holmén, Bengt Nordén, and Bo Albinsson pp 3114–3121 DOI: 10.1021/ja9635600

Water 1H Magnetic Relaxation Dispersion in Protein Solutions. A Quantitative Assessment of Internal Hydration, Proton Exchange, and Cross-Relaxation Kandadai Venu, Vladimir P. Denisov, and Bertil Halle pp 3122–3134 DOI: 10.1021/ja963611t

n-Alkylsiloxanes:  From Single Monolayers to Layered Crystals. The Formation of Crystalline Polymers from the Hydrolysis of n-Octadecyltrichlorosilane A. N. Parikh, M. A. Schivley, E. Koo, K. Seshadri, D. Aurentz, K. Mueller, and D. L. Allara pp 3135–3143 DOI: 10.1021/ja963284p

Highly Dipolar, Optically Nonlinear Adducts of Tetracyano-p-quinodimethane:  Synthesis, Physical Characterization, and Theoretical Aspects Marek Szablewski, Philip R. Thomas, Anna Thornton, David Bloor, Graham H. Cross, Jacqueline M. Cole, Judith A. K. Howard, Massimo Malagoli, Fabienne Meyers, Jean-Luc Brédas, Wim Wenseleers, and Etienne Goovaerts pp 3144–3154 DOI: 10.1021/ja963923w Supporting Info

Conformationally-Induced Geometric Electron Localization. Interrupted Conjugation, Very Large Hyperpolarizabilities, and Sizable Infrared Absorption in Simple Twisted Molecular Chromophores Israel D. L. Albert, Tobin J. Marks, and Mark A. Ratner pp 3155–3156 DOI: 10.1021/ja964389v

Carbocation-Mediated Processes in Biocatalysts. Contribution of Aromatic Moieties Dov Barak, Arie Ordentlich, Yoffi Segall, Baruch Velan, Hendrik P. Benschop, Leo P. A. De Jong, and Avigdor Shafferman pp 3157–3158 DOI: 10.1021/ja963861+

Prediction of Alternative Structures of the Molybdenum Site in the Xanthine Oxidase-Related Aldehyde Oxido Reductase Alexander A. Voityuk, Katrin Albert, Sibylle Köstlmeier, Vladimir A. Nasluzov, Konstantin M. Neyman, Peter Hof, Robert Huber, Maria J. Romão, and Notker Rösch pp 3159–3160 DOI: 10.1021/ja963901+

Synthesis of Sulfated Neoglycopolymers:  Selective P-Selectin Inhibitors David D. Manning, Xin Hu, Pamela Beck, and Laura L. Kiessling pp 3161–3162 DOI: 10.1021/ja964046x Supporting Info

Motifs for Metallophosphatase Inhibition Jason K. Myers, Stephen M. Antonelli, and Theodore S. Widlanski pp 3163–3164 DOI: 10.1021/ja960952y Supporting Info

Co(I)-Catalyzed Inter- and Intramolecular Hydroacylation of Olefins with Aromatic Aldehydes Christian P. Lenges and Maurice Brookhart pp 3165–3166 DOI: 10.1021/ja9639776 Supporting Info

Synthesis and Characterization of Chelating Bis(silane) Complexes [RuH2{(η2-HSiMe2)2X}(PCy3)2] (X = C6H4, O) Containing Two Ru−(η2-Si−H) Bonds Fabien Delpech, Sylviane Sabo-Etienne, Bruno Chaudret, and Jean-Claude Daran pp 3167–3168 DOI: 10.1021/ja963933x Supporting Info

Nonenzymatic Kinetic Resolution of Racemic Alcohols through an “Induced Fit” Process Takeo Kawabata, Minoru Nagato, Kiyosei Takasu, and Kaoru Fuji pp 3169–3170 DOI: 10.1021/ja963275g Supporting Info

Electrophilic Tungsten(II) Methylene Carbene Complexes:  Adduct Formation, Methylene Transfer, and Catalysis of Aziridine Formation from Imines and Ethyl Diazoacetate T. Brent Gunnoe, P. S. White, J. L. Templeton, and Luis Casarrubios pp 3171–3172 DOI: 10.1021/ja9640206 Supporting Info

Electrochemical Interconversion of Mono-, Bi-, and Tetranuclear (Bipyridyl) Manganese Complexes in Buffered Aqueous Solution Marie-Noëlle Collomb Dunand-Sauthier, Alain Deronzier, and Xavier PradonStéphane MénageChristian Philouze pp 3173–3174 DOI: 10.1021/ja964102u

First Evidence of Anchimeric Spin Delocalization in Tryptophan Radical Cation1 Susan E. Walden and Ralph A. Wheeler pp 3175–3176 DOI: 10.1021/ja9642166 Supporting Info

Recognition of Uncharged Polyamide-Linked Nucleic Acid Analogs by DNA Polymerases and Reverse Transcriptases Michael J. Lutz, Steven A. Benner, Silvia Hein, Gerhard Breipohl, and Eugen Uhlmann pp 3177–3178 DOI: 10.1021/ja9637457

Novel, Stereoselective Synthesis of 2-Amino Saccharides J. Du Bois, Craig S. Tomooka, Jason Hong, and Erick M. Carreira pp 3179–3180 DOI: 10.1021/ja964381l Supporting Info

Peptide Helix Induction in a Self-Assembling Hemoprotein Model Paige A. Arnold, William R. Shelton, and David R. Benson pp 3181–3182 DOI: 10.1021/ja963747r Supporting Info

Synthesis and Reactivity of Niobium−Vinylketene Complexes Exhibiting Ketene η2-C,O Complexation Margaret E. Kerr and Joseph W. Bruno pp 3183–3184 DOI: 10.1021/ja963520w Supporting Info

New Entries to and New Reactions of Fluorocarbon Ligands Dejian Huang and Kenneth G. Caulton pp 3185–3186 DOI: 10.1021/ja963903u Supporting Info

A Multinuclear Ca2+ Complex of a Linear N-Protected Glycyl-Dipeptoid Derivative Elizabeth A. Jefferson, Peter Gantzel, Ettore Benedetti, and Murray Goodman pp 3187–3188 DOI: 10.1021/ja970033n Supporting Info

Observation of a PNA−PNA−PNA Triplex Pernilla Wittung, Peter Nielsen, and Bengt Nordén pp 3189–3190 DOI: 10.1021/ja964341h

Laser Flash and Dual Wavelength Photolysis of 3,4-Diaza-2,2-dimethoxy-1-oxa[4.5]spirooct-3-ene. Migration of Hydrogen and Carbon in Cyclobutylidene and in the Excited State of Its Precursor John Paul Pezacki, David L. Pole, and John WarkentinTongqian Chen, Francis Ford, John P. Toscano, Jennifer Fell, and Matthew S. Platz pp 3191–3192 DOI: 10.1021/ja961933r Supporting Info

The Asymmetric Synthesis of Erythromycin B Stephen F. Martin, Tsuneaki Hida, Philip R. Kym, Michael Loft, and Anne Hodgson pp 3193–3194 DOI: 10.1021/ja963575y Supporting Info

An Endohedral Simple Enol:  The First Isolation of a β-Unsubstituted Simple Enol Utilizing a Lantern-Shaped Molecular Framework Soichiro Watanabe, Kei Goto, Takayuki Kawashima, and Renji Okazaki pp 3195–3196 DOI: 10.1021/ja963093m Supporting Info

Liquid Crystals Obtained from Disclike Mesogenic Diacetylenes and Their Polymerization Ji Young Chang, Jung Hyun Baik, Chan Bong Lee, and Man Jung HanSung-Kwon Hong pp 3197–3198 DOI: 10.1021/ja961193m Supporting Info

Quality Assurance in Environmental Monitoring:  Sampling and Simple Pretreatment Edited by Philippe Quevauviller (European Commercial Measurement and Testing Programme). VCH:  New York. 1995. xv + 306 pp. $115.00. ISBN 3-527-28725-8. James M. O'Neal p 3199 DOI: 10.1021/ja965646z

Food Proteins. Properties and Characterization Edited by Shuryo Nakai (University of British Columbia) and H. Wayne Modler (Food Research Center, Agriculture, Canada). VCH:  New York. 1996. xii + 544 pp. $160.00. ISBN 1-56081-691-0. S. Suzanne Nielsen p 3199 DOI: 10.1021/ja965650a

New Trends in Kramers' Reaction Rate Theory Edited by Peter Talkner (Paul Scherrer Institute, Switzerland) and Peter Hanggi (University of Augsburg, FRG). Kluwer:  Dordrecht, The Netherlands. 1995. ix + 251 pp. $125.00. ISBN 0-7923-2940-6. Jayendran C. Rasaiah pp 3199–3200 DOI: 10.1021/ja9554017

Advances in Polymer Science. Volume 125. Statistical Mechanics; Deformation; Ultrasonic Spectroscopy Edited by Akihiro Abe (Tokyo Institute of Polytechnics) et al. Springer:  New York. 1996. 194 pp. ISBN 3-540-60483-9. Guy C. Berry p 3200 DOI: 10.1021/ja965795h

Issue 14

α-Hydroxytropolones:  A New Class of Potent Inhibitors of Inositol Monophosphatase and Other Bimetallic Enzymes Serge R. Piettre, Axel Ganzhorn, Jan Hoflack, Khalid Islam, and Jean-Marie Hornsperger pp 3201–3204 DOI: 10.1021/ja9634278

First Observation of Left-Handed Helical Conformation in a Dehydro Peptide Containing Two l-Val Residues. Crystal and Solution Structure of Boc-l-Val-ΔPhe-ΔPhe-ΔPhe-l-Val-OMe, R. M. Jain, K. R. Rajashankar, S. Ramakumar, and V. S. Chauhan pp 3205–3211 DOI: 10.1021/ja961460o

Electrostatic Effects on Ion Selectivity and Rectification in Designed Ion Channel Peptides J. D. Lear, J. P. Schneider, P. K. Kienker, and W. F. DeGrado pp 3212–3217 DOI: 10.1021/ja9629672

Reversible Migratory Insertion/β-Alkyl Elimination in α-Agostic Alkylniobium Alkyne Complexes Michel Etienne, René Mathieu, and Bruno Donnadieu pp 3218–3228 DOI: 10.1021/ja963697q Supporting Info

Correlations of Structure with Binding Ability Involving Nine Hemicarcerand Hosts and Twenty-Four Guests1 Roger C. Helgeson, Carolyn B. Knobler, and Donald J. Cram pp 3229–3244 DOI: 10.1021/ja963379r Supporting Info

Controlling Subtilisin Activity and Selectivity in Organic Media by Imprinting with Nucleophilic Substrates Joseph O. Rich and Jonathan S. Dordick pp 3245–3252 DOI: 10.1021/ja9637715

Beyond the Cyanine Limit:  Peierls Distortion and Symmetry Collapse in a Polymethine Dye Laren M. Tolbert and Xiaodong Zhao pp 3253–3258 DOI: 10.1021/ja9626953

Perfluorinated Cyclic and Acyclic Keto−Enol Systems:  A Remarkable Contrast Patrick E. Lindner and David M. Lemal pp 3259–3266 DOI: 10.1021/ja963788n Supporting Info

Energetics of Fluoroalkene Double Bond Isomerizations Patrick E. Lindner and David M. Lemal pp 3267–3273 DOI: 10.1021/ja963789f Supporting Info

Reversible Protonation of Isobutane in Liquid Superacids in Competition with Protolytic Ionization Jean Sommer, Jozef Bukala, Mohammed Hachoumy, and Roland Jost pp 3274–3279 DOI: 10.1021/ja963848p Supporting Info

Multiple-Photon Chemistry of 9-(Phenoxymethyl)- and 9,10-Bis(phenoxymethyl)anthracenes in the Laser-Jet:  Generation, Photochemistry, and Time-Resolved Laser-Flash Spectroscopy of Anthracenylmethyl Radicals and Pulse Radiolysis of 9-(Bromomethyl)anthracene Waldemar Adam, Katrin Schneider, Marion Stapper, and Steen Steenken pp 3280–3287 DOI: 10.1021/ja963643g

Synthesis of Tertiary Amines Using a Polystyrene (REM) Resin Angus R. Brown, David C. Rees, Zoran Rankovic, and J. Richard Morphy pp 3288–3295 DOI: 10.1021/ja963829f Supporting Info

Toward Dendrimers with Cylindrical Shape in Solution Birol Karakaya, Wilhelm Claussen, Katrin Gessler, Wolfram Saenger, and A.-Dieter Schlüter pp 3296–3301 DOI: 10.1021/ja963943y Supporting Info

On the Mechanism of Allylic Amination Catalyzed by Iron Salts Radhey S. Srivastava and Kenneth M. Nicholas pp 3302–3310 DOI: 10.1021/ja964006t Supporting Info

Excited State Properties of Quinoxaline-Substituted Platinum 1,2-Enedithiolates Sharada P. Kaiwar, Anthony Vodacek, Neil V. Blough, and Robert S. Pilato pp 3311–3316 DOI: 10.1021/ja9626998 Supporting Info

Electron Transfer Behavior and Solid State Structures of the Helical Cobalt Complexes of the Open-Chain Tetrapyrrole Ligand, Octaethylbilindione Saeed Attar, Alan L. Balch, Pamela M. Van Calcar, and Krzysztof Winkler pp 3317–3323 DOI: 10.1021/ja9628718 Supporting Info

Cooperative Jahn-Teller Effect in Titanium Alum Philip L. W. Tregenna-Piggott, Stephen P. Best, Mary C. M. O'Brien, Kevin S. Knight, J. Bruce Forsyth, and John R. Pilbrow pp 3324–3332 DOI: 10.1021/ja963509w Supporting Info

Formation of β-Lactones through Lewis Acid-Promoted [2 + 2] Cycloaddition Reaction. A Theoretical Study Jean-Marc Pons, Magali Oblin, Agnès Pommier, Michel Rajzmann, and Daniel Liotard pp 3333–3338 DOI: 10.1021/ja962082q

Structure and Reactions of the Succinimidyl Radical:  A Density Functional Study Joanne L. Gainsforth, Mariusz Klobukowski, and Dennis D. Tanner pp 3339–3346 DOI: 10.1021/ja9630710

Why Does o-Fluorine Substitution Raise the Barrier to Ring Expansion of Phenylnitrene? William L. Karney and Weston Thatcher Borden pp 3347–3350 DOI: 10.1021/ja9644440 Supporting Info

Infrared Multiphoton Dissociation of MC4H6+ [M = Fe, Co, or Ni; C4H6 = 1,3-Butadiene or (C2H2)(C2H4)] Paul I. Surya, Don Rufus A. Ranatunga, and Ben S. Freiser pp 3351–3357 DOI: 10.1021/ja963200c

Photorefractivity in Nematic Liquid Crystals Containing Electron Donor−Acceptor Molecules That Undergo Intramolecular Charge Separation Gary P. Wiederrecht, Beth A. Yoon, Walter A. Svec, and Michael R. Wasielewski pp 3358–3364 DOI: 10.1021/ja963812x

Stark Spectroscopy of Donor/Acceptor Substituted Polyenes Gerold U. Bublitz, Rafael Ortiz, Seth R. Marder, and Steven G. Boxer pp 3365–3376 DOI: 10.1021/ja9640814

Nuclear Magnetic Resonance Studies of a Paramagnetic Metallo DNA Complex Miriam Gochin pp 3377–3378 DOI: 10.1021/ja9633169

Design of a Synthetic Nuclease:  DNA Hydrolysis by a Zinc-Binding Peptide Tethered to a Rhodium Intercalator Marilena P. Fitzsimons and Jacqueline K. Barton pp 3379–3380 DOI: 10.1021/ja9633981 Supporting Info

A Carbene−Phosphorus(V) Adduct Anthony J. Arduengo, III, Roland Krafczyk, William J. Marshall, and Reinhard Schmutzler pp 3381–3382 DOI: 10.1021/ja964094h Supporting Info

13C Kinetic Isotope Effects for the Addition of Lithium Dibutylcuprate to Cyclohexenone. Reductive Elimination Is Rate-Determining Doug E. Frantz, Daniel A. Singleton, and James P. Snyder pp 3383–3384 DOI: 10.1021/ja9636348 Supporting Info

Experimental Geometry of the Epoxidation Transition State Daniel A. Singleton, Steven R. Merrigan, Jian Liu, and K. N. Houk pp 3385–3386 DOI: 10.1021/ja963656u Supporting Info

Surprising Titanium Complexes Bearing η2-Pyrazolato Ligands:  Synthesis, Structure, and Molecular Orbital Studies Ilia A. Guzei, Anwar G. Baboul, Glenn P. A. Yap, Arnold L. Rheingold, H. Bernhard Schlegel, and Charles H. Winter pp 3387–3388 DOI: 10.1021/ja963446h Supporting Info

Electron Density Distribution in Diphosphenes and the Nature of the Phosphorus−Phosphorus Double Bond:  Experimental and Theoretical Studies Alan H. Cowley, Andreas Decken, Nicholas C. Norman, Carl Krüger, Frank Lutz, Heiko Jacobsen, and Tom Ziegler pp 3389–3390 DOI: 10.1021/ja9627510 Supporting Info

Solid-Supported Hyperbranched Polymerization:  Evidence for Self-Limited Growth P. Bharathi and Jeffrey S. Moore pp 3391–3392 DOI: 10.1021/ja9632062 Supporting Info

Enzyme-Catalyzed Synthesis of Oligosaccharides That Contain Functionalized Sialic Acids Mark D. Chappell and Randall L. Halcomb pp 3393–3394 DOI: 10.1021/ja963894p Supporting Info

Palladium-Catalyzed Intermolecular Carbon−Oxygen Bond Formation:  A New Synthesis of Aryl Ethers Michael Palucki, John P. Wolfe, and Stephen L. Buchwald pp 3395–3396 DOI: 10.1021/ja9640152 Supporting Info

Facile and Remarkably Selective Substitution Reactions Involving Framework Silicon Atoms in Silsesquioxane Frameworks Frank J. Feher, Shawn H. Phillips, and Joseph W. Ziller pp 3397–3398 DOI: 10.1021/ja963904m Supporting Info

Synthesis of and Asymmetric Cycloaddition with Chiral Diiron Acyl Complexes Scott R. Gilbertson and Omar D. Lopez pp 3399–3400 DOI: 10.1021/ja964195f Supporting Info

Observation of Hybridization and Dehybridization of Thiol-Tethered DNA Using Two-Color Surface Plasmon Resonance Spectroscopy Kevin A. Peterlinz and Rosina M. GeorgiadisTonya M. Herne and Michael J. Tarlov pp 3401–3402 DOI: 10.1021/ja964326c Supporting Info

Synthesis of Caged NAD(P)+ Coenzymes:  Photorelease of NADP+ Charles P. Salerno, Marianne Resat, Douglas Magde, and Joseph Kraut pp 3403–3404 DOI: 10.1021/ja962904j Supporting Info

The First Silatriafulvene Derivative:  Generation, Unusually Low Reactivity toward Alcohols, and Isomerization to Silacyclobutadiene Kenkichi Sakamoto, Jun Ogasawara, Hideki Sakurai, and Mitsuo Kira pp 3405–3406 DOI: 10.1021/ja970083s

2,6-Dimethylmesitylene-2,6-diyl Dication, a Unique Dienyl−Allyl Dication and Its Comparison with Bisallylic Benzene Dication1 George A. Olah, Tatyana Shamma, Arwed Burrichter, Golam Rasul, and G. K. Surya Prakash pp 3407–3408 DOI: 10.1021/ja970090g

Total Synthesis of (±)-Stemoamide Peter A. Jacobi and Kyungae Lee pp 3409–3410 DOI: 10.1021/ja9642727 Supporting Info

Coupling of Carbon Monoxide to Isocyanides and Enones Induced by Alkyl Zr(IV) and Hf(IV) Tropocoronand Complexes Michael J. Scott and Stephen J. Lippard pp 3411–3412 DOI: 10.1021/ja9640861 Supporting Info

Metal Coordination Environment of a Cu(II)-Substituted α-Keto Acid-Dependent Dioxygenase That Degrades the Herbicide 2,4-D Adam K. Whiting and Lawrence Que, Jr.Ruth E. Saari and Robert P. HausingerMatthew A. Fredrick and John McCracken pp 3413–3414 DOI: 10.1021/ja964449x

Thermodynamic Viability of Hydrogen Atom Transfer from Water Coordinated to the Oxygen-Evolving Complex of Photosystem II M. Tyler Caudle and Vincent L. Pecoraro pp 3415–3416 DOI: 10.1021/ja9641158 Supporting Info

Synthesis and Conformational Properties of the M(4-6)(5-7) Bicyclic Tetrapeptide Common to the Vancomycin Antibiotics David A. Evans, Christopher J. Dinsmore, Andrew M. Ratz, Deborah A. Evrard, and James C. Barrow pp 3417–3418 DOI: 10.1021/ja964419u Supporting Info

Approaches to the Synthesis of the Vancomycin Antibiotics. Synthesis of Orienticin C (Bis-dechlorovancomycin) Aglycon David A. Evans, James C. Barrow, Paul S. Watson, Andrew M. Ratz, Christopher J. Dinsmore, Deborah A. Evrard, Keith M. DeVries, Jonathan A. Ellman, Scott D. Rychnovsky, and Jérôme Lacour pp 3419–3420 DOI: 10.1021/ja964420t Supporting Info

New Synthetic Technology for the Synthesis of Aryl Ethers:  Construction of C-O-D and D-O-E Ring Model Systems of Vancomycin K. C. Nicolaou, C. N. C. Boddy, S. Natarajan, T.-Y. Yue, H. Li, S. Bräse, and J. M. Ramanjulu pp 3421–3422 DOI: 10.1021/ja9636350 Supporting Info

Photophysics of π-Conjugated Polymers That Incorporate Metal to Ligand Charge Transfer Chromophores Kevin D. Ley, C. Ed Whittle, Michael D. Bartberger, and Kirk S. Schanze pp 3423–3424 DOI: 10.1021/ja963278t Supporting Info

On the Interaction Between p53 and MDM2:  Transfer NOE Study of a p53-Derived Peptide Ligated to MDM2 M. J. J. Blommers, G. Fendrich, C. García-Echeverría, and P. Chêne pp 3425–3426 DOI: 10.1021/ja9633171

Biomimetic Diastereoselective Total Synthesis of epi-Illudol via a Transannular Radical Cyclizations Strategy Maryse Rychlet Elliott, Anne-Lise Dhimane, and Max Malacria pp 3427–3428 DOI: 10.1021/ja970139i Supporting Info

Issue 15

Highly Efficient Ring Closure of Aromatic Dialdehydes to Macrocyclic Allenes Marcus S. Brody, Robin M. Williams, and M. G. Finn pp 3429–3433 DOI: 10.1021/ja962868o Supporting Info

Replacement of the Bizelesin Ureadiyl Linkage by a Guanidinium Moiety Retards Translocation from Monoalkylation to Cross-Linking Sites on DNA Seung-Joo Lee, Frederick C. Seaman, Daekyu Sun, Heping Xiong, Robert C. Kelly, and Laurence H. Hurley pp 3434–3442 DOI: 10.1021/ja963873v

Fluorescent Chemosensors for Divalent Zinc Based on Zinc Finger Domains. Enhanced Oxidative Stability, Metal Binding Affinity, and Structural and Functional Characterization Grant K. Walkup and Barbara Imperiali pp 3443–3450 DOI: 10.1021/ja9642121 Supporting Info

Thermal and Photodegradation of Photochromic Spiroindolinenaphthooxazines and -pyrans:  Reaction with Nucleophiles. Trapping of the Merocyanine Zwitterionic Form Vincenzo Malatesta, Carlo Neri, Maria Lucia Wis, Luciano Montanari, and Roberto Millini pp 3451–3455 DOI: 10.1021/ja961784c Supporting Info

A Cation-Specific, Light-Controlled Transient Chromoionophore Based on a Benzothiazolium Styryl Azacrown Ether Dye Igor K. Lednev, Ronald E. Hester, and John N. Moore pp 3456–3461 DOI: 10.1021/ja964154j

Total Synthesis of a Mycobactin S, a Siderophore and Growth Promoter of Mycobacterium Smegmatis, and Determination of its Growth Inhibitory Activity against Mycobacterium tuberculosis Jingdan Hu and Marvin J. Miller pp 3462–3468 DOI: 10.1021/ja963968x

Treating Electrostatic Shielding at the Surface of Silica as Discrete Siloxide·Cation Interactions Mathai Mammen, Jeffrey D. Carbeck, Eric E. Simanek, and George M. Whitesides pp 3469–3476 DOI: 10.1021/ja9638115

Crystal Engineering and Correspondence between Molecular and Crystal Structures. Are 2- and 3-Aminophenols Anomalous? Frank H. Allen, Vanessa J. Hoy, Judith A. K. Howard, Venkat R. Thalladi, Gautam R. Desiraju, Chick C. Wilson, and Garry J. McIntyre pp 3477–3480 DOI: 10.1021/ja964254p Supporting Info

Aza-Crown-Capped Porphyrin Models of Myoglobin:  Studies of the Steric Interactions of Gas Binding James P. Collman, Paul C. Herrmann, Lei Fu, Todd A. Eberspacher, Michael Eubanks, Bernard Boitrel, Pascal Hayoz, Xumu Zhang, John I. Brauman, and Victor W. Day pp 3481–3489 DOI: 10.1021/ja963945i Supporting Info

Coordination and Hydrogenation of 1,3-Cyclohexadiene by Niobium and Tantalum Aryl Oxide Compounds:  Relevance to Catalytic Arene Hydrogenation Valerie M. Visciglio, Janet R. Clark, Mindy T. Nguyen, Douglas R. Mulford, Phillip E. Fanwick, and Ian P. Rothwell pp 3490–3499 DOI: 10.1021/ja964073n Supporting Info

Spin Density Maps for the Ferrimagnetic Chain Compound MnCu(pba)(H2O)3·2H2O (pba = 1,2-Propylenebis(oxamato)):  Polarized Neutron Diffraction and Theoretical Studies Valéry Baron, Béatrice Gillon, Alain Cousson, Corine Mathonière, Olivier Kahn, André Grand, Lars Öhrström, Bernard Delley, Michel Bonnet, and Jean-Xavier Boucherle pp 3500–3506 DOI: 10.1021/ja9641620 Supporting Info

Aqueous Catalysis:  Methylrhenium Trioxide (MTO) as a Homogeneous Catalyst for the Diels−Alder Reaction Zuolin Zhu and James H. Espenson pp 3507–3512 DOI: 10.1021/ja963172y Supporting Info

Synthesis and Characterization of 17-Valence-Electron [CpCr(NO)X2]- Anions:  Oxidatively Induced Loss of the Nitrosyl Ligand1 Peter Legzdins, W. Stephen McNeil, Steven J. Rettig, and Kevin M. Smith pp 3513–3522 DOI: 10.1021/ja963464z Supporting Info

Reduced Nitrosyl Polyoxomolybdates with the Hitherto Unknown Decamolybdate Y Structure:  Preparation and Crystal and Electronic Structures of the Two-Electron Reduced [Mo10O25(OMe)6(NO)]- and the Four-Electron Reduced [Mo10O24(OMe)7(NO)]2- Anna Proust, Francis Robert, Pierre Gouzerh, Qin Chen, and Jon Zubieta pp 3523–3535 DOI: 10.1021/ja9635140 Supporting Info

Reductive Electrochemistry of Rhodium Porphyrins. Disproportionation of Intermediary Oxidation States Valérie Grass, Doris Lexa, Michel Momenteau, and Jean-Michel Savéant pp 3536–3542 DOI: 10.1021/ja964023i

Hydrogenation of Ru(1,5-cyclooctadiene)(η3-C3H5)2 over Black Platinum. A Low-Temperature Reactive Deposition of Submonolayer Quantities of Ruthenium Atoms on Platinum with Real Time Control over Surface Stoichiometry Christopher E. Lee, Paul B. Tiege, Yue Xing, Jayan Nagendran, and Steven H. Bergens pp 3543–3549 DOI: 10.1021/ja963163p

Novel [3 + 2] 1,3-Cycloaddition of the Ionized Carbonyl Ylide +CH2OCH2• with Carbonyl Compounds in the Gas Phase Marcos N. Eberlin, Ana Elisa P. M. Sorrilha, Fábio C. Gozzo, and Regina S. Pimpim pp 3550–3557 DOI: 10.1021/ja9514151

H/D Exchange Levels of Shape-Resolved Cytochrome c Conformers in the Gas Phase Stephen J. Valentine and David E. Clemmer pp 3558–3566 DOI: 10.1021/ja9626751

Planarity of N,N-Dimethylacetamide, (CH3)2NC(O)CH3 Hans-Georg Mack and Heinz Oberhammer pp 3567–3570 DOI: 10.1021/ja964374x

Partially Delocalized Allylic Lithium Compounds:  Dynamics of Inversion, 1,3 Li Shift, and C−Li Bond, Exchange Influence of the Stereochemistry of Solvation Gideon Fraenkel and Fayang Qiu pp 3571–3579 DOI: 10.1021/ja963083l

Fluorescence Lifetime Measurements and Spectral Analysis of Adamantyldiazirine Jeffrey S. Buterbaugh, John P. Toscano, William L. Weaver, James R. Gord, Christopher M. Hadad, Terry L. Gustafson, and Matthew S. Platz pp 3580–3591 DOI: 10.1021/ja964022q Supporting Info

Gathering of Charged Colloidal Particles near a Like-Charged Glass Plate Tadashi Muramoto, Kensaku Ito, and Hiromi Kitano pp 3592–3595 DOI: 10.1021/ja963485t Supporting Info

Alkaline Lyotropic Silicate−Surfactant Liquid Crystals A. Firouzi, F. Atef, A. G. Oertli, G. D. Stucky, and B. F. Chmelka pp 3596–3610 DOI: 10.1021/ja963007i

Molecular Structures and Conformations of PolyphosphazenesA Study Based on Density Functional Calculations of Oligomers Huai Sun pp 3611–3618 DOI: 10.1021/ja963077p

Total Synthesis of the Ocular Age Pigment A2-E:  A Convergent Pathway Rex X.-F. Ren, Naomi Sakai, and Koji Nakanishi pp 3619–3620 DOI: 10.1021/ja9700414 Supporting Info

A 1H NMR Study of the Binding of Δ-[Ru(phen)2DPQ]2+ to the Hexanucleotide d(GTCGAC)2. Evidence for Intercalation from the Minor Groove Ivan Greguric, Janice R. Aldrich-Wright, and J. Grant Collins pp 3621–3622 DOI: 10.1021/ja962395l Supporting Info

An Antibody-Catalyzed Selenoxide Elimination Zhaohui S. Zhou, Ning Jiang, and Donald Hilvert pp 3623–3624 DOI: 10.1021/ja963748j

Acid−Base Equilibrium between Phenoxyl−Nitronyl Nitroxide Biradical and Closed-Shell Cation. A Magnetic pH Sensor Katsuya Ishiguro, Mitsutoshi Ozaki, Nobuyuki Sekine, and Yasuhiko Sawaki pp 3625–3626 DOI: 10.1021/ja963289m Supporting Info

Asymmetric Syntheses and Absolute Stereochemistry of 5,6-Dihydro-α-pyrones, A New Class of Potent HIV Protease Inhibitors T. M. Judge, G. Phillips, J. K. Morris, K. D. Lovasz, K. R. Romines, G. P. Luke, J. Tulinsky, J. M. Tustin, R. A. Chrusciel, L. A. Dolak, S. A. Mizsak, W. Watt, J. Morris, S. L. Vander Velde, J. W. Strohbach, and R. B. Gammill pp 3627–3628 DOI: 10.1021/ja963434w Supporting Info

Syntheses and Characterization of Bis(silacyclopropene) and Disilabenzvalene Wataru Ando, Tadahiro Shiba, Takahiro Hidaka, Kenji Morihashi, and Osamu Kikuchi pp 3629–3630 DOI: 10.1021/ja9637412 Supporting Info

[2 + 2 + 1] Alkyne Cyclotrimerizations:  A Metallacyclopentadiene Route to Fulvenes Joseph M. O'Connor, Kristin Hiibner, Rich Merwin, Peter K. Gantzel, and Bella S. FongMelanie Adams and Arnold L. Rheingold pp 3631–3632 DOI: 10.1021/ja970007p Supporting Info

Heptane Coordination to an Iron(II) Porphyrin Daniel R. Evans, Tatiana Drovetskaya, Robert Bau, Christopher A. Reed, and Peter D. W. Boyd pp 3633–3634 DOI: 10.1021/ja970008h Supporting Info

Modeling Nonheme Diiron Enzymes:  Hydrocarbon Hydroxylation and Desaturation by a High-Valent Fe2O2 Diamond Core Cheal Kim, Yanhong Dong, and Lawrence Que, Jr. pp 3635–3636 DOI: 10.1021/ja963578a

Elimination of Chlorine (Radical) or Tosylate (Anion) from C2‘ of Nucleoside C3‘ Free Radicals as Model Reactions Postulated To Occur at the Active Site of Ribonucleotide Reductases1 Morris J. Robins, Zhiqiang Guo, and Stanislaw F. Wnuk pp 3637–3638 DOI: 10.1021/ja970171c Supporting Info

Ziegler Catalysts:  Recent Scientific Innovations and Technological Improvements Edited by G. Fink (Max-Planck-Institute), R. Mülhaupt (Albert-Ludwigs-University), and H. H. Brintzinger (University of Konstanz). Springer:  New York. 1995. xiii + 511 pp. $133.00. ISBN 0-387-58225-8. David H. McConville p 3639 DOI: 10.1021/ja9655193

The Chemistry of Organophosphorus Compounds. Volume 4. Ter- and Quinquevalent Phosphorus Acids and their Derivatives. The Chemistry of Functional Group Series Edited by Frank R. Hartley (Cranfield University, Cranfield, U.K.). Wiley:  New York. 1996. xiv + 995 pp. $375.00. ISBN 0-471-95706-2. Cynthia K. McClure pp 3639–3640 DOI: 10.1021/ja965683q

Electrochemical Processes for Clean Technology By Keith Scott (University of Newcastle). The Royal Society of Chemistry:  Cambridge. 1995. xiii + 307 pp. $99.00. ISBN 0-85404-506-6. Carl A. Koval p 3640 DOI: 10.1021/ja9655909

Studies in Surface Science and Catalysis, #94:  Catalysis by Microporous Materials Edited by H. K. Beyer (Hungarian Academy of Sciences), H. G. Karge (Fritz Haber Institute), I. Kiricsi (Jozsef Attila University), and J. B. Nagy (University of Notre-Dame de la Paix). Elsevier:  Amsterdam. 1995. xix + 792 pp. $291.25. ISBN 0-444-82049-3. p 3640 DOI: 10.1021/ja965612r

Synthetic Methods of Organometallic and Inorganic Chemistry. Vol. 1 Edited by W. A. Herrmann (Technische Universität München) and A. Salzer (Technische Hochschule Aachen). G. Thieme:  Stuttgart, Germany. 1996. x + 182 pp. DM124.00. ISBN 3-13-103021-6. John P. Selegue p 3640 DOI: 10.1021/ja9657216

Issue 16

Direct Observation of Aminoglycoside−RNA Interactions by Surface Plasmon Resonance Martin Hendrix, E. Scott Priestley, Gerald F. Joyce and Chi-Huey Wong pp 3641–3648 DOI: 10.1021/ja964290o Supporting Info

Factors Governing the Sequence-Selective DNA Binding of Geometrically Constrained Peptide Dimers Takashi Morii, Yoshitaka Saimei, Masako Okagami, Keisuke Makino, and Yukio Sugiura pp 3649–3655 DOI: 10.1021/ja963280k

A New Arrangement for the Anticancer Antibiotics Tallysomycin and Bleomycin When Bound to Zinc:  An Assessment of Metal and Ligand Chirality by NMR and Molecular Dynamics Antonia M. Calafat, Hoshik Won, and Luigi G. Marzilli pp 3656–3664 DOI: 10.1021/ja963392b Supporting Info

Optical Activity of Oxo Amide Crystals Toru Asahi, Makoto Nakamura, Jinzo Kobayashi, Fumio Toda, and Hisakazu Miyamoto pp 3665–3669 DOI: 10.1021/ja9620189

Using Secondary α Deuterium Kinetic Isotope Effects To Determine the Symmetry of SN2 Transition States Kenneth Charles Westaway, Thuy Van Pham, and Yao-ren Fang pp 3670–3676 DOI: 10.1021/ja962088f

Photochemistry in a Crystalline Cage. Control of the Type-B Bicyclic Reaction Course:  Mechanistic and Exploratory Organic Photochemistry1,2 Howard E. Zimmerman and Pavel Sebek pp 3677–3690 DOI: 10.1021/ja9630396 Supporting Info

Efficient Synthesis of Methylenebis(phosphonate) Analogues of P1,P2-Disubstituted Pyrophosphates of Biological Interest. A Novel Plausible Mechanism Krzysztof W. Pankiewicz, Krystyna Lesiak, and Kyoichi A. Watanabe pp 3691–3695 DOI: 10.1021/ja964058i

Solution Phase Combinatorial Chemistry. Discovery of Novel Polyazapyridinophanes with Potent Antibacterial Activity by a Solution Phase Simultaneous Addition of Functionalities Approach Haoyun An, Lendell L. Cummins, Richard H. Griffey, Ramesh Bharadwaj, Becky D. Haly, Allister S. Fraser, Laura Wilson-Lingardo, Lisa M. Risen, Jacqueline R. Wyatt, and P. Dan Cook pp 3696–3708 DOI: 10.1021/ja964153r Supporting Info

Palladium(0)-Catalyzed Asymmetric Cycloaddition of Vinyloxiranes with Heterocumulenes Using Chiral Phosphine Ligands:  An Effective Route to Highly Enantioselective Vinyloxazolidine Derivatives Chitchamai Larksarp and Howard Alper pp 3709–3715 DOI: 10.1021/ja964335l Supporting Info

Synthesis, Structural Diversity, Dynamics, and Acidity of the M(II) and M(IV) Complexes [MH3(PR3)4]+ (M = Fe, Ru, Os; R = Me, Et) Dmitry G. Gusev, Rainer Hübener, Peter Burger, Olli Orama, and Heinz Berke pp 3716–3731 DOI: 10.1021/ja963692t Supporting Info

A Model for the Structure of the Large-Pore Zeolite SSZ-31 Raul F. Lobo, Michael Tsapatsis, Clemens C. Freyhardt, Ignatius Chan, Cong-Yan Chen, Stacey I. Zones, and Mark E. Davis pp 3732–3744 DOI: 10.1021/ja963925g Supporting Info

Organolanthanide-Catalyzed Imine Hydrogenation. Scope, Selectivity, Mechanistic Observations, and Unusual Byproducts Yasushi Obora, Tetsuo Ohta, Charlotte L. Stern, and Tobin J. Marks pp 3745–3755 DOI: 10.1021/ja963775+ Supporting Info

Internal Chemistry of the Pure and Chemically Substituted Quadruple Perovskites Ln‘Ln‘‘Ba2Cu2Ti2O11 (Ln‘Ln‘‘ = LaY or NdDy) P. A. Salvador, T. O. Mason, K. Otzschi, K. B. Greenwood, K. R. Poeppelmeier, and B. Dabrowski pp 3756–3764 DOI: 10.1021/ja963908r

Structure and Properties of Li+(Cryptand [2.1.1])e-, an Electride with a 1D “Spin-Ladder-like” Cavity-Channel Geometry Rui H. Huang, Michael J. Wagner, Deborah J. Gilbert, Kerry A. Reidy-Cedergren, Donald L. Ward, Margaret K. Faber, and James L. Dye pp 3765–3772 DOI: 10.1021/ja9640760 Supporting Info

Novel Ni(0)-COT Complexes, Displaying Semiaromatic Planar COT Ligands with Alternating C−C and CC Bonds Ingrid Bach, Klaus-Richard Pörschke, Bernd Proft, Richard Goddard, Carsten Kopiske, Carl Krüger, Anna Rufińska, and Klaus Seevogel pp 3773–3781 DOI: 10.1021/ja964210g Supporting Info

Has the Dimer of Carbonic Acid a Lower Energy Than Its Constituents Water and Carbon Dioxide? Klaus R. Liedl, Sanja Sekušak, and Erwin Mayer pp 3782–3784 DOI: 10.1021/ja961802q

Activity Regulation of Photoreactive Nitrile Hydratase by Nitric Oxide Masafumi Odaka, Kaoru Fujii, Mikio Hoshino, Takumi Noguchi, Masanari Tsujimura, Shigehiro Nagashima, Masafumi Yohda, Teruyuki Nagamune, Yorinao Inoue, and Isao Endo pp 3785–3791 DOI: 10.1021/ja962179c

Scanning Force Microscopy of Small Ligand−Nucleic Acid Complexes:  Tris(o-phenanthroline)ruthenium(II) as a Test for a New Assay Joseph E. Coury, Jaimie R. Anderson, Lori McFail-Isom, Loren Dean Williams, and Lawrence A. Bottomley pp 3792–3796 DOI: 10.1021/ja9623774

Influence of Head Group Mismatch on the Miscibility of Phospholipids in the Physiologically-Relevant Fluid Phase:  A Nearest-Neighbor Recognition Analysis Maki Uragami, Takehisa Dewa, Minoru Inagaki, Robert A. Hendel, and Steven L. Regen pp 3797–3801 DOI: 10.1021/ja962880g

Acid−Amide Intermolecular Hydrogen Bonding Paul L. Wash, Emily Maverick, John Chiefari, and David A. Lightner pp 3802–3806 DOI: 10.1021/ja963416e Supporting Info

A 2D 31P MAS NMR Study of Polycrystalline Cd3(PO4)2 W. A. Dollase, M. Feike, H. Förster, T. Schaller, I. Schnell, A. Sebald, and S. Steuernagel pp 3807–3810 DOI: 10.1021/ja9636808

Are There Hydrogen Bonds in Supercritical Water? Markus M. Hoffmann and Mark S. Conradi pp 3811–3817 DOI: 10.1021/ja964331g

Absolute Configuration of Bromochlorofluoromethane from Molecular Dynamics Simulation of Its Enantioselective Complexation by Cryptophane-C Jeanne Costante-Crassous, Tami J. Marrone, James M. Briggs, J. Andrew McCammon, and André Collet pp 3818–3823 DOI: 10.1021/ja9701164

Singlet Oxygenation/Radical Rearrangement as an Approach to 1,4-Dioxygenated Peroxides:  Asymmetric Total Syntheses of Plakorin and enantio-Chondrillin Patrick H. Dussault and Kevin R. Woller pp 3824–3825 DOI: 10.1021/ja970174p Supporting Info

Double Stereochemical Labeling in Stilbene Photochemistry:  Tracing Phenyl Rotation Reveals Stereochemically Distinct Reaction Pathways for Formation of the E Photoproducts James E. Gano, Patricia A. Garry, Padmanabhan Sekher, Jason Schliesser, and Yong Wah KimDieter Lenoir pp 3826–3827 DOI: 10.1021/ja962334n

A New and Efficient Strategy for the Total Synthesis of Polycyclic Diterpenoids:  The Preparation of Gibberellins (±)-GA103 and (±)-GA73 Geoffrey R. King, Lewis N. Mander, Nathaniel J. T. Monck, Jonathan C. Morris, and Hongbin Zhang pp 3828–3829 DOI: 10.1021/ja963935h Supporting Info

Synthesis of Titanium and Zirconium Complexes That Contain the Tridentate Diamido Ligand, [((t-Bu-d6)N-o-C6H4)2O]2- ([NON]2-) and the Living Polymerization of 1-Hexene by Activated [NON]ZrMe2 Robert Baumann, William M. Davis, and Richard R. Schrock pp 3830–3831 DOI: 10.1021/ja963823q Supporting Info

Synthesis and Characterization of Aromatic Biradicals in the Gas Phase:  A meta-Benzyne with an Inert Positively Charged Substituent and Its ortho- and para-Isomers Kami K. Thoen and Hilkka I. Kenttämaa pp 3832–3833 DOI: 10.1021/ja962359m

The Excited State Behavior of Aminostilbenes. A New Example of the Meta Effect Frederick D. Lewis and Jye-Shane Yang pp 3834–3835 DOI: 10.1021/ja964465u Supporting Info

Asymmetric [3 + 2] Cycloaddition of 2,3-Butadienoates with Electron-Deficient Olefins Catalyzed by Novel Chiral 2,5-Dialkyl-7-phenyl-7- phosphabicyclo[2.2.1]heptanes Guoxin Zhu, Zhaogen Chen, Qiongzhong Jiang, Dengming Xiao, Ping Cao, and Xumu Zhang pp 3836–3837 DOI: 10.1021/ja9644687 Supporting Info

Gas Phase Photochemical Synthesis of II/VI Metal Sulfide Films and in Situ Luminescence Spectroscopic Identification of Photofragments Jinwoo Cheon and Jeffrey I. Zink pp 3838–3839 DOI: 10.1021/ja964452g

High-Performance Caged Nitric Oxide:  A New Molecular Design, Synthesis, and Photochemical Reaction Shigeyuki Namiki, Tatsuo Arai, and Ken Fujimori pp 3840–3841 DOI: 10.1021/ja962839d

Deuterium Relaxation in a Uniformly 15N-Labeled Homeodomain and Its DNA Complex1 Konstantin Pervushin, Gerhard Wider, and Kurt Wüthrich pp 3842–3843 DOI: 10.1021/ja964298y Supporting Info

l-Dopa:  A Powerful Nonphosphorylatable Tyrosine Mimetic for pp60c-src Jinkui Niu and David S. Lawrence pp 3844–3845 DOI: 10.1021/ja970037s Supporting Info

The Biradical, Bis(3,5-di- tert-butyl-4-phenoxyl)methyleneadamantane, Exhibits Matrix-Dependent EPR Spectra Suggesting Rotamer Bistability with Differential Exchange Coupling David A. Shultz, Andrew K. Boal, and Gary T. Farmer pp 3846–3847 DOI: 10.1021/ja964330o Supporting Info

Combinatorial Peptide and Nonpeptide Libraries. A Handbook Edited by Gunther Jung (Institute Fur Organische Chemie Eberhard-Karls-Universitat Tubingen). VCH:  Weinheim. 1996. xxvii + 544 pp. ISBN 3-527-29380-9. Kim D. Janda p 3848 DOI: 10.1021/ja9657768

Solvent Isotope Effects in H2O−D2O Mixtures (Proton Inventories) on Serine-Protease-Catalyzed Hydrolysis Reactions. Influence of Oxyanion Hole Interactions and Medium Effects  J. Am. Chem. Soc. 1996, 118, 8802−8807 T. K. Chang, Y. Chiang, H.-X. Guo, A. J. Kresge, L. Mathew, M. F. Powell, and J. A. Wells p 3848 DOI: 10.1021/ja975402u

Advances in Polymer Science 126:  Biopolymers Liquid Crystalline Polymers Phase Emulsion Edited by Akihiro Abe (Tokyo Institute of Polytechnics). Springer:  New York. 1996. 226 pp. $149.00. ISBN 3-540-60484-7. Pradip K. Bhowmik pp 3848–3849 DOI: 10.1021/ja965723q

Symmetry:  A Basis for Synthesis Design By Tse-Lok Ho (National Chiao Tung University, Taiwan). Wiley:  New York. 1995. xv + 561 pp. $69.95. ISBN 0-471-57376-0. Gary A. Sulikowski p 3849 DOI: 10.1021/ja955343p

Archaeological Chemistry By A. Mark Pollard and Carl Heron (University of Bradford). Royal Society of Chemistry:  Cambridge. 1996. xvi + 376 pp. $39.00. ISBN 0-85404-523-6. Gene S. Hall pp 3849–3850 DOI: 10.1021/ja9656457

The Physics of Polymers:  Concepts for Understanding their Structures and Behavior By Gert R. Strobl (Alber-Ludwigs University). Springer:  New York. 1996. xi + 439 pp. $39.95. ISBN 3-540-60768-4. H. Henning Kausch p 3850 DOI: 10.1021/ja965718m

Advances in Chemical Physics, Vol. 94. Polymeric Systems Edited by I. Prigogine (University of Brussels and University of TexasAustin) and Stuart A. Rice (The University of Chicago). Wiley:  New York. 1996. ix + 742 pp. $130.00. ISBN 0-471-14324-3. Jean Duhamel pp 3850–3851 DOI: 10.1021/ja965682y

Crystal Structures I:  Patterns and Symmetry By M. O'Keeffe (Arizona State University) and B. G. Hyde (The Australian National University). Mineralogical Society of America:  Washington, DC. 1996. xvi + 453 pp. $36.00. ISBN 0-939950-40-5. Jacques Barbier pp 3851–3852 DOI: 10.1021/ja965775f

Advances in Metal-Organic Chemistry, Vol. 5 Edited by Lanny S. Liebeskind (Emory University). JAI Press:  Greenwich, CT. 1996. x + 267 pp. $97.50. ISBN 1-55938-789-0. Allen W. Apblett p 3852 DOI: 10.1021/ja965660b

Stereoselective Synthesis, Vol. E21f Edited by Gunter Helmchen (Heidelberg), Reinhard W. Hoffman (Marburg), Johann Mulzer (Berlin), and Ernst Schaumann (Clausthal). G. Thieme:  Stuttgart, Germany. 1996. x + 1230 pp. DM1930.00. ISBN 3-13-102794-0. Michael P. Doyle p 3852 DOI: 10.1021/ja965720d

Issue 17

Reduction of Ferric Iron Could Drive Hydrogen Tunneling in Lipoxygenase Catalysis:  Implications for Enzymatic and Chemical Mechanisms Nimrod Moiseyev, Joseph Rucker, and Michael H. Glickman pp 3853–3860 DOI: 10.1021/ja9632825

Deconvolution of Combinatorial Oligonucleotide Libraries by Electrospray Ionization Tandem Mass Spectrometry Steven C. Pomerantz, James A. McCloskey, Theodore M. Tarasow, and Bruce E. Eaton pp 3861–3867 DOI: 10.1021/ja963875f

On the Dehalogenation Mechanism of 4-Chlorobenzoyl CoA by 4-Chlorobenzoyl CoA Dehalogenase:  Insights from Study Based on the Nonenzymatic Reaction Ya-Jun Zheng and Thomas C. Bruice pp 3868–3877 DOI: 10.1021/ja970114j

Effect of HMPA on the Composition of Organocyanocuprates. First Observation of a 2J13C-13CN Coupling Constant in a Vinylcyanocuprate Jorge A. Cabezas and Allan C. Oehlschlager pp 3878–3886 DOI: 10.1021/ja962697n

Well-Defined Ruthenium Olefin Metathesis Catalysts:  Mechanism and Activity Eric L. Dias, SonBinh T. Nguyen, and Robert H. Grubbs pp 3887–3897 DOI: 10.1021/ja963136z

Inferences from the 1H-NMR Spectroscopic Study of an Antiferromagnetically Coupled Heterobinuclear Fe(III)−(X)−Cu(II) S = 2 Spin System (X = O2-, OH-) Alaganandan Nanthakumar, Stephen Fox, Narasimha N. Murthy, and Kenneth D. Karlin pp 3898–3906 DOI: 10.1021/ja962404q Supporting Info

Toward a Hexagonal Grid Polymer:  Synthesis, Coupling, and Chemically Reversible Surface-Pinning of the Star Connectors, 1,3,5-C6H3(CB10H10CX)3 Ulrich Schöberl, Thomas F. Magnera, Robin M. Harrison, Frank Fleischer, Jodi L. Pflug, Peter F. H. Schwab, Xiangsheng Meng, Dariusz Lipiak, Bruce C. Noll, Viloya S. Allured, Trevor Rudalevige, Stephen Lee, and Josef Michl pp 3907–3917 DOI: 10.1021/ja963331d Supporting Info

Tetrafluorophosphate Anion Karl O. Christe, David A. Dixon, Gary J. Schrobilgen, and William W. Wilson pp 3918–3928 DOI: 10.1021/ja963421i

Correlation between the Stretching Frequency of Carbon Monoxide Adsorbed and the Fermi Level Local Density of States at Surfaces of Platinum Catalysts Y. Y. Tong, J. Billy, A. J. Renouprez, and J. J. van der Klink pp 3929–3934 DOI: 10.1021/ja962156y

Dehydrogenation of Ethene by Ti+ and V+:  Excited State Effects on the Mechanism for C−H Bond Activation from Kinetic Energy Release Distributions Jennifer Gidden, Petra A. M. van Koppen, and Michael T. Bowers pp 3935–3941 DOI: 10.1021/ja964377+

Exploitation of Subtilisin BPN‘ as Catalyst for the Synthesis of Peptides Containing Noncoded Amino Acids, Peptide Mimetics and Peptide Conjugates Wilna J. Moree, Pamela Sears, Katsuhiro Kawashiro, Krista Witte, and Chi-Huey Wong pp 3942–3947 DOI: 10.1021/ja964399w Supporting Info

Nuclear Dynamics and Electronic Transition in a Photosynthetic Reaction Center Marc Souaille and Massimo Marchi pp 3948–3958 DOI: 10.1021/ja943841c

Methylation of Carbon Monoxide Dehydrogenase from Clostridium thermoaceticum and Mechanism of Acetyl Coenzyme A Synthesis David P. Barondeau and Paul A. Lindahl pp 3959–3970 DOI: 10.1021/ja963597k

Ring Strain Perturbation of the Equilibria between Hydroxycarbene Complexes and Metal Acyl Hydride Complexes Charles P. Casey, Curtis J. Czerwinski, Kerry A. Fusie, and Randy K. Hayashi pp 3971–3978 DOI: 10.1021/ja9637311 Supporting Info

Electrochemical Generation and Reactions of Ferrylmyoglobins in Water and Microemulsions Anthony C. Onuoha, Xiaolin Zu, and James F. Rusling pp 3979–3986 DOI: 10.1021/ja964007l

Solid State Electrochemically Generated Luminescence Based on Serial Frozen Concentration Gradients of RuIII/II and RuII/I Couples in a Molten Ruthenium 2,2‘-Bipyridine Complex Karolyn M. Maness, Hitoshi Masui, R. Mark Wightman, and Royce W. Murray pp 3987–3993 DOI: 10.1021/ja9636754

High-Pressure CO Oxidation on Pt(111) Monitored with Infrared−Visible Sum Frequency Generation (SFG) Xingcai Su, Paul S. Cremer, Y. Ron Shen, and Gabor A. Somorjai pp 3994–4000 DOI: 10.1021/ja9638723

Determination of Activation Energies for Ion Fragmentation by Surface-Induced Dissociation Samuel B. Wainhaus, Eric A. Gislason, and Luke Hanley pp 4001–4007 DOI: 10.1021/ja962471k

Intrinsic Barriers and Transition State Structures in the Gas Phase Carbon-to-Carbon Identity Proton Transfers from Nitromethane to Nitromethide Anion and from Protonated Nitromethane to aci-Nitromethane. An ab Initio Study Claude F. Bernasconi, Philip J. Wenzel, James R. Keeffe, and Scott Gronert pp 4008–4020 DOI: 10.1021/ja963492h Supporting Info

Ab Initio Molecular Orbital Theory on Intramolecular Charge Polarization:  Effect of Hydrogen Abstraction on the Charge Sensitivity of Aromatic and Nonaromatic Species Akihiro Morita and Shigeki Kato pp 4021–4032 DOI: 10.1021/ja9635342

Knowledge Discovery in Reaction Databases:  Landscaping Organic Reactions by a Self-Organizing Neural Network Lingran Chen and Johann Gasteiger pp 4033–4042 DOI: 10.1021/ja960027b Supporting Info

Electronic Band Structure Study of the Anomalous Electrical and Superconducting Properties of Hexagonal Alkali Tungsten Bronzes AxWO3 (A = K, Rb, Cs) Kwang-Soon Lee, Dong-Kyun Seo, and Myung-Hwan Whangbo pp 4043–4049 DOI: 10.1021/ja964455t

Proton Exchange and Inversion at Coordinated sec-Amine Centers. Particularly Rapid Inversion at Sterically Strained “Planar” N in Some [Co(cyclen)(S-AlaO)]2+ and [Co(Mecyclen)(S-AlaO)]2+ Complexes1 David A. Buckingham, Charles R. Clark, and Andrew J. Rogers pp 4050–4058 DOI: 10.1021/ja963631v Supporting Info

Structure of the Modified Heme in Allylbenzene-Inactivated Chloroperoxidase Determined by Q-Band CW and Pulsed ENDOR Hong-In Lee, Annette F. Dexter, Yang-Cheng Fann, Frederick J. Lakner, Lowell P. Hager, and Brian M. Hoffman pp 4059–4069 DOI: 10.1021/ja963684c

Orbital Specific Charge Transfer Distances, Solvent Reorganization Energies, and Electronic Coupling Energies:  Electronic Stark Effect Studies of Parallel and Orthogonal Intervalence Transfer in (NC)5OsII−CN−RuIII(NH3)5- Laba Karki and Joseph T. Hupp pp 4070–4073 DOI: 10.1021/ja963279l

An Abrupt Solvatochromic Transition in a Polar Polysilane Kunio Oka, Naofumi Fujiue, and Takaaki DohmaruChien-Hua Yuan and Robert West pp 4074–4075 DOI: 10.1021/ja963724c

Structure and Bonding in B10X2H10 (X = C and Si). The Kinky Surface of 1,2-Dehydro-o-disilaborane Eluvathingal D. Jemmis and Boggavarapu Kiran pp 4076–4077 DOI: 10.1021/ja964385q

Base-Catalyzed C−H Deprotonation of 4-Methoxybenzyl Alcohol Radical Cations in Water:  Evidence for a Carbon-to-Oxygen 1,2-H-Shift Mechanism Enrico Baciocchi, Massimo Bietti, and Steen Steenken pp 4078–4079 DOI: 10.1021/ja970259q

Novel Asymmetric Alkylation of Aromatic Aldehydes with Triethylaluminum Catalyzed by Titanium·(1,1‘-bi-2-naphthol) and Titanium·(5,5‘,6,6‘,7,7‘,8,8‘-octahydro-1,1‘- bi-2-naphthol) Complexes Albert S. C. Chan, Fu-Yao Zhang, and Chiu-Wing Yip pp 4080–4081 DOI: 10.1021/ja970135d

Identification of a Key Intermediate of Relevance to Iron−Sulfur Cluster Biosynthesis. Mechanism of Cluster Assembly and Implications for Protein Folding Kshama Natarajan and J. A. Cowan pp 4082–4083 DOI: 10.1021/ja9639729

An Unusual Stereochemical Outcome in the Oxidatively Induced Reductive Elimination of (Pentenediyl)iron Complexes Young K. Yun and William A. Donaldson pp 4084–4085 DOI: 10.1021/ja964258u Supporting Info

The New α-Amino Acid Nω-Hydroxy-nor-l-arginine:  a High-Affinity Inhibitor of Arginase Well Adapted To Bind to Its Manganese Cluster J. Custot, C. Moali, M. Brollo, J. L. Boucher, M. Delaforge, D. Mansuy, J. P. Tenu, and J. L. Zimmermann pp 4086–4087 DOI: 10.1021/ja970285o

A Pentacoordinate Oxorhenium(V) Metallochelate Elicits Antibody Catalysts for Phosphodiester Cleavage David P. Weiner, Torsten Wiemann, Mary M. Wolfe, Paul Wentworth, Jr., and Kim D. Janda pp 4088–4089 DOI: 10.1021/ja970107v Supporting Info

Synthesis and Characterization of a Reactive Vinyl-Functionalized MCM-41:  Probing the Internal Pore Structure by a Bromination Reaction Myong H. Lim, Christopher F. Blanford, and Andreas Stein pp 4090–4091 DOI: 10.1021/ja9638824 Supporting Info

Ordered Poly(p-phenylenevinylene) Matrix Nanocomposites via Lyotropic Liquid-Crystalline Monomers Ryan C. Smith, Walter M. Fischer, and Douglas L. Gin pp 4092–4093 DOI: 10.1021/ja963837w Supporting Info

Modification of Heme Peptides by Reverse Proteolysis:  Spectroscopy of Microperoxidase-10 with C-Terminal Histidine, Tyrosine, and Methionine Residues Donald W. Low, Grace Yang, Jay R. Winkler, and Harry B. Gray pp 4094–4095 DOI: 10.1021/ja970103q Supporting Info

Physical Properties of Polymers Handbook Edited by James E. Mark (University Of Cincinnati). American Institute of Physics Press:  Woodbury, NY. 1996. xv + 723 pp. $290.00. ISBN 1-56396-295-0. Patty Wisian-Neilson p 4096 DOI: 10.1021/ja965747x

Physical Properties of Polymers Handbook, CD-ROM Edited by James E. Mark (University of Cincinnati). American Institute of Physics Press:  Woodbury, NY. 1996. $127.00. ISBN 1-56396-598-4. Patty Wisian-Neilson p 4096 DOI: 10.1021/ja9659333

Issue 18

Discotic Liquid Crystals through Molecular Self-Assembly Ralf Kleppinger, C. Peter Lillya, and Changqing Yang pp 4097–4102 DOI: 10.1021/ja9631108 Supporting Info

Generation and in Situ Evaluation of Libraries of Poly(acrylic acid) Presenting Sialosides as Side Chains as Polyvalent Inhibitors of Influenza-Mediated Hemagglutination Seok-Ki Choi, Mathai Mammen, and George M. Whitesides pp 4103–4111 DOI: 10.1021/ja963519x

Dysiherbaine:  A New Neurotoxic Amino Acid from the Micronesian Marine Sponge Dysidea herbacea Ryuichi Sakai, Hisao Kamiya, Michio Murata, and Keiko Shimamoto pp 4112–4116 DOI: 10.1021/ja963953z Supporting Info

Catalysis by Organic Solids. Stereoselective Diels−Alder Reactions Promoted by Microporous Molecular Crystals Having an Extensive Hydrogen-Bonded Network Ken Endo, Takashi Koike, Tomoya Sawaki, Osamu Hayashida, Hideki Masuda, and Yasuhiro Aoyama pp 4117–4122 DOI: 10.1021/ja964198s Supporting Info

Stereospecific Alkenylation of C−H Bonds via Reaction with β-Heteroatom-Functionalized Trisubstituted Vinyl Triflones1 Jason Xiang, Wanlong Jiang, Jianchun Gong, and P. L. Fuchs pp 4123–4129 DOI: 10.1021/ja963636s Supporting Info

Total Synthesis of (−)-Dendrobine via α-Carbonyl Radical Cyclization Chin-Kang Sha, Rei-Torng Chiu, Cheng-Fen Yang, Nai-Tung Yao, Wei-Hong Tseng, Fen-Ling Liao, and Sue-Lein Wang pp 4130–4135 DOI: 10.1021/ja9643432 Supporting Info

Reactive Intermediates in Peptide Synthesis:  First Crystal Structures and ab Initio Calculations of 2-Alkoxy-5(4H)-oxazolones from Urethane-Protected Amino Acids Marco Crisma, Giovanni Valle, Fernando Formaggio, Claudio Toniolo, and Alessandro Bagno pp 4136–4142 DOI: 10.1021/ja9637863 Supporting Info

β-Donor Bonds in SiON Units:  An Inherent Structure- Determining Property Leading to (4 + 4)-Coordination in Tetrakis-(N,N-dimethylhydroxylamido)silane Norbert W. Mitzel, Alexander J. Blake, and David W. H. Rankin pp 4143–4148 DOI: 10.1021/ja9640004 Supporting Info

Time-Resolved Infrared Spectroscopy of Intermediates and Products from Photolysis of 1-(2-Nitrophenyl)ethyl Phosphates:  Reaction of the 2-Nitrosoacetophenone Byproduct with Thiols Andreas Barth, John E. T. Corrie, Michael J. Gradwell, Yashusi Maeda, Werner Mäntele, Tanja Meier, and David R. Trentham pp 4149–4159 DOI: 10.1021/ja964430u

Unsubstituted CyclidenesA Novel Family of Lacunar Dioxygen Carriers with Enhanced Stability toward Autoxidation:  Synthesis, Characterization, and a Representative X-ray Structure A. G. Kolchinski, B. Korybut-Daszkiewicz, E. V. Rybak-Akimova, D. H. Busch, N. W. Alcock, and H. J. Clase pp 4160–4171 DOI: 10.1021/ja9624477 Supporting Info

Cationic Hydrogen Complexes of Rhenium. 2. Synthesis, Reactivity, and Competition Studies D. M. Heinekey, Catherine E. Radzewich, Mark H. Voges, and Beth M. Schomber pp 4172–4181 DOI: 10.1021/ja9643228

Magnetic Circular Dichroism Spectroscopy as a Probe of Geometric and Electronic Structure of Cobalt(II)-Substituted Proteins:  Ground-State Zero-Field Splitting as a Coordination Number Indicator James A. Larrabee, Christopher M. Alessi, Esi T. Asiedu, Justin O. Cook, Keith R. Hoerning, Lance J. Klingler, Gregory S. Okin, Stuart G. Santee, and Thomas L. Volkert pp 4182–4196 DOI: 10.1021/ja963555w Supporting Info

Models for Nonheme Iron Intermediates:  Structural Basis for Tuning the Spin States of Fe(TPA) Complexes Yan Zang, Jinheung Kim, Yanhong Dong, Elizabeth C. Wilkinson, Evan H. Appelman, and Lawrence Que, Jr. pp 4197–4205 DOI: 10.1021/ja9638521 Supporting Info

The Temperature-Dependence of Hydrophobic Association in Water. Pair versus Bulk Hydrophobic Interactions Susanna Lüdemann, Roger Abseher, Hellfried Schreiber, and Othmar Steinhauser pp 4206–4213 DOI: 10.1021/ja953439d

Theoretical Study of the Effects of Protonation and Deprotonation on Bond Dissociation Energies of Second-Row Elements:  Comparison with First-Row Elements Susan L. Boyd and Russell J. Boyd pp 4214–4219 DOI: 10.1021/ja9619770

Computed Properties of the CB9H10 and CB11H12 Free Radicals Michael L. McKee pp 4220–4223 DOI: 10.1021/ja964328x Supporting Info

Core Electron Energies, Infrared Intensities, and Atomic Charges Paulo H. Guadagnini, Anselmo E. Oliveira, Roy E. Bruns, and Benicio de Barros Neto pp 4224–4231 DOI: 10.1021/ja961378t

A Theoretical Study of the Endo/Exo Selectivity of the Diels−Alder Reaction between Cyclopropene and Butadiene Mariona Sodupe, Raphael Rios, Vicenç Branchadell, Tony Nicholas, Antonio Oliva, and J. J. Dannenberg pp 4232–4238 DOI: 10.1021/ja9628260 Supporting Info

A Computational Analysis of Substituent Effects on the O−H Bond Dissociation Energy in Phenols:  Polar Versus Radical Effects Tore Brinck, Markus Haeberlein, and Mats Jonsson pp 4239–4244 DOI: 10.1021/ja962931+

Theoretical Calculation of Substituent Effects on the O−H Bond Strength of Phenolic Antioxidants Related to Vitamin E James S. Wright, David J. Carpenter, Daniel J. McKay, and K. U. Ingold pp 4245–4252 DOI: 10.1021/ja963378z

Peri-, Site-, and Regioselectivity in Heterocumulene−Heterodiene Cycloaddition Reactions:  An ab Initio Study of the System Ketenimine + Acrolein Walter M. F. Fabian and Rudolf Janoschek pp 4253–4257 DOI: 10.1021/ja963941d Supporting Info

Temperature-Jump Relaxation Magic-Angle Spinning NMR Study of the Methyl tert-Butyl Ether Reaction in a Boron Pentasil Zeolite Toralf Mildner, Horst Ernst, Dieter Freude, and Wolfgang F. Hölderich pp 4258–4262 DOI: 10.1021/ja963355k

Raman Excitation Profiles of C70 in Benzene Solution. Assignment of the Electronic Spectrum in the 380−510-nm Region Sean H. Gallagher, Robert S. Armstrong, Robert D. Bolskar, Peter A. Lay, and Christopher A. Reed pp 4263–4271 DOI: 10.1021/ja963426f

A Protocol for the Interpretation of Side-Chain Dynamics Based on NMR Relaxation:  Application to Phenylalanines in Antamanide T. Bremi, R. Brüschweiler, and R. R. Ernst pp 4272–4284 DOI: 10.1021/ja9636505 Supporting Info

Using the Electrostatic Field Effect to Design a New Class of Inhibitors for Cysteine Proteases Jeffrey L. Conroy, Tanya C. Sanders, and Christopher T. Seto pp 4285–4291 DOI: 10.1021/ja9641867 Supporting Info

Derivatization of Carbon Surfaces by Anodic Oxidation of Arylacetates. Electrochemical Manipulation of the Grafted Films Claude P. Andrieux, Felipe Gonzalez, and Jean-Michel Savéant pp 4292–4300 DOI: 10.1021/ja9636092 Supporting Info

3-Amino-4-hydroxybenzoic Acid:  the Precursor of the C7N Unit in Asukamycin and Manumycin Yiding Hu, Chris R. Melville, Steven J. Gould, and Heinz G. Floss pp 4301–4302 DOI: 10.1021/ja9701016

Reductive Oligomerization of Carbon Monoxide by Rhodium-Catalyzed Reaction with Hydrosilanes Naoto Chatani, Masaaki Shinohara, Shin-ichi Ikeda, and Shinji Murai pp 4303–4304 DOI: 10.1021/ja9631561 Supporting Info

Dipeptide Surrogates Containing Asparagine-Derived Tetrahydropyrimidinones:  Preparation, Structure, and Use in Solid Phase Synthesis Joseph P. Konopelski, Lubov K. Filonova, and Marilyn M. Olmstead pp 4305–4306 DOI: 10.1021/ja9639271 Supporting Info

Elongation of the Quadruple CrII−CrII Bond Induced by Two PtMe2 Moieties in the Linearly Aligned Tetrametal System, PtMe2···Cr−Cr···PtMe2 Kazushi Mashima, Mitsuhiro Tanaka, and Kazuhide TaniAkira NakamuraSadamu Takeda, Wasuke Mori, and Kizashi Yamaguchi pp 4307–4308 DOI: 10.1021/ja964052t Supporting Info

Gain-of-Function Mutagenesis of a Modular Polyketide Synthase Robert McDaniel, Camilla M. Kao, Hong Fu, Peter Hevezi, Claes Gustafsson, Mary Betlach, Gary Ashley, David E. Cane, and Chaitan Khosla pp 4309–4310 DOI: 10.1021/ja9702531

Oxidizing Properties of Zeolite-Encapsulated Oxobis(2,2‘-bipyridine)ruthenium(IV) Complexes Formed by Air Oxidation of Bis(2,2‘-bipyridine)aquaruthenium(II) Prabir K. Dutta and Samar K. Das pp 4311–4312 DOI: 10.1021/ja964309n

Development of Highly Enantioselective Polymeric Catalysts Using Rigid and Sterically Regular Chiral Polybinaphthols Wei-Sheng Huang, Qiao-Sheng Hu, Xiao-Fan Zheng, Julie Anderson, and Lin Pu pp 4313–4314 DOI: 10.1021/ja964285k Supporting Info

A Functional Mimic of the New Class of Tungstoenzyme, Acetylene Hydratase Jyoti Yadav, Samar K. Das, and Sabyasachi Sarkar pp 4315–4316 DOI: 10.1021/ja970134l

The Asymmetric Baylis−Hillman Reaction Linda Joy Brzezinski, Sara Rafel, and James W. Leahy pp 4317–4318 DOI: 10.1021/ja970079g Supporting Info

C−F Bond Activation by Aryl Carbocations:  Conclusive Intramolecular Fluoride Shifts between Carbon Atoms in Solution and the First Examples of Intermolecular Fluoride Ion Abstractions Dana Ferraris, Christopher Cox, Rahul Anand, and Thomas Lectka pp 4319–4320 DOI: 10.1021/ja963090+ Supporting Info

Self-Assembling Ternary Complex Stabilities and Template Ratios in Carceplex Formation Kensuke Nakamura, Chimin Sheu, Amy E. Keating, and K. N. HoukJohn C. Sherman and Robert G. ChapmanWilliam L. Jorgensen pp 4321–4322 DOI: 10.1021/ja9623065

KaleidaGraph 3.0.5 for MacIntosh and Windows Synergy Software, 2457 Perkiomen Avenue, Reading, Pennsylvania 19606-9976. Phone: (610) 370-0548. Fax: (610) 370-0548. E-mail:  maxwell@sales.synergy.com. $249.00. Mikael Hase p 4323 DOI: 10.1021/ja9659378

Catalytic RNA. Series:  Nucleic Acids and Molecular Biology, #10 Edited by Fritz Eckstein (Max-Planck-Institut) and David M. J. Lilley (University of Dundee). Springer:  New York. 1996. xi + 417 pp. $197.00. ISBN 3-540-60795-1. Andrew Siwkowski and Arnold Hampel pp 4323–4324 DOI: 10.1021/ja965765e

Surface Analysis with STM and AFM:  Experimental and Theoretical Aspects of Image Analysis By Sergei N. Magonov (Digital Instruments, Inc.) and Myung-Hwan Whangbo (North Carolina State University). VCH:  New York. 1996. xii + 323 pp. $125.00. ISBN 3-527-29313-2. Andrew A. Gewirth p 4324 DOI: 10.1021/ja965589+

4th World Surfactants Congress, Volumes 1−4 The Royal Society of Chemistry:  Cambridge. 1996. 1920 pp. £159.50. ISBN 0-85404-751-4, 0-85404-756-5, 0-85404-761-1, 0-85404-766-2. p 4324 DOI: 10.1021/ja9657420

Gmelin Handbook of Inorganic and Organometallic Chemistry. Supplement Volume C1:  Mononuclear Compounds with Hydrogen Edited by Dieter Koschel and Hans Schafer. Springer:  Berlin. 1993. xvi + 326 pp. ISBN 3-540-93680-7. p 4324 DOI: 10.1021/ja965778s

Issue 19

Modulation of Reactivity in Native Chemical Ligation through the Use of Thiol Additives Philip E. Dawson, Michael J. Churchill, M. Reza Ghadiri, and Stephen B. H. Kent pp 4325–4329 DOI: 10.1021/ja962656r

Adenine Derivatives as Phosphate-Activating Groups for the Regioselective Formation of 3‘,5‘-Linked Oligoadenylates on Montmorillonite:  Possible Phosphate-Activating Groups for the Prebiotic Synthesis of RNA K. Joseph Prabahar and James P. Ferris pp 4330–4337 DOI: 10.1021/ja9700764

Stereodependent Fusion and Fission of Vesicles:  Calcium Binding of Synthetic Gemini Phospholipids Containing Two Phosphate Groups N. A. J. M. Sommerdijk, T. H. L. Hoeks, M. Synak, M. C. Feiters, R. J. M. Nolte, and B. Zwanenburg pp 4338–4344 DOI: 10.1021/ja962303s Supporting Info

Preparation, NMR, Raman, and DFT/IGLO/GIAO-MP2 Study of Mono- and Diprotonated Thiourea and Theoretical Investigation of Triprotonated Thiourea1 George A. Olah, Arwed Burrichter, Golam Rasul, Karl O. Christe, and G. K. Surya Prakash pp 4345–4352 DOI: 10.1021/ja970221d

Tandem Use of Cobalt-Mediated Reactions to Synthesize (+)-Epoxydictymene, a Diterpene Containing a Trans-Fused 5−5 Ring System Timothy F. Jamison, Soroosh Shambayati, William E. Crowe, and Stuart L. Schreiber pp 4353–4363 DOI: 10.1021/ja970022u Supporting Info

A Novel Antenna Cyclodextrin:  Synthesis and Photosensitized Reaction of an Included Guest Maria Nowakowska, Nikolai Loukine, David M. Gravett, Nicholas A. D. Burke, and James E. Guillet pp 4364–4368 DOI: 10.1021/ja963072s

Hydrogen-Bonded Organic Ferromagnet Michio M. Matsushita, Akira Izuoka, Tadashi Sugawara, Tatsuya Kobayashi, Nobuo Wada, Naoya Takeda, and Masayasu Ishikawa pp 4369–4379 DOI: 10.1021/ja964083o Supporting Info

Experimental and ab Initio Computational Evidence for New Peroxidic Intermediates (Iminopersulfinic Acids). Substituent Effects in the Photooxidations of Sulfenic Acid Derivatives Alexander Greer, Ming-Fang Chen, Frank Jensen, and Edward L. Clennan pp 4380–4387 DOI: 10.1021/ja964295l Supporting Info

Evaluation of Binding and Origins of Specificity of 9-Ethyladenine Imprinted Polymers David Spivak, Marcella A. Gilmore, and K. J. Shea pp 4388–4393 DOI: 10.1021/ja963510v

Relationship between Regiospecificity and Type of Stereospecificity in Propene Polymerization with Zirconocene-Based Catalysts1 Gaetano Guerra, Pasquale Longo, Luigi Cavallo, Paolo Corradini, and Luigi Resconi pp 4394–4403 DOI: 10.1021/ja964142y

Tungsten(II)−Carbene Complex Functions as a Dicationic Synthon:  Efficient Constructions of Furan and Pyran Frameworks from Readily Available α,δ- and α,ε-Alkynols Kwei-Wen Liang, Wen-Tai Li, Shie-Ming Peng, Sue-Lein Wang, and Rai-Shung Liu pp 4404–4412 DOI: 10.1021/ja970020+ Supporting Info

Highly Enantioselective Hydroformylation of Olefins Catalyzed by Rhodium(I) Complexes of New Chiral Phosphine−Phosphite Ligands Kyoko Nozaki, Nozomu Sakai, Tetsuo Nanno, Takanori Higashijima, Satoshi Mano, Toshihide Horiuchi, and Hidemasa Takaya pp 4413–4423 DOI: 10.1021/ja970049d Supporting Info

Titanocene-Catalyzed Cyclocarbonylation of o-Allyl Aryl Ketones to γ-Butyrolactones Natasha M. Kablaoui, Frederick A. Hicks, and Stephen L. Buchwald pp 4424–4431 DOI: 10.1021/ja970115b

Mechanistic Aspects of the Rhodium-Catalyzed Hydrogenation of CO2 to Formic AcidA Theoretical and Kinetic Study, François Hutschka, Alain Dedieu, Martin Eichberger, Roland Fornika, and Walter Leitner pp 4432–4443 DOI: 10.1021/ja961579x

Calorimetric and Spectroscopic Investigation of the Acidity of HZSM-5 Russell S. Drago, Sílvia C. Dias, Mariana Torrealba, and Lola de Lima pp 4444–4452 DOI: 10.1021/ja9633530

Cyclopentadienylmolybdenum(II) and -(III) Complexes Containing Diene and Allyl Ligands. 1. Isomeric Preferences and Isomerization Rates in a Pair of Redox-Related Organometallic Complexes Li-Sheng Wang, James C. Fettinger, and Rinaldo Poli pp 4453–4464 DOI: 10.1021/ja964078k Supporting Info

Chlorine K-Edge X-ray Absorption Spectroscopy as a Probe of Chlorine−Manganese Bonding:  Model Systems with Relevance to the Oxygen Evolving Complex in Photosystem II Annette Rompel, Joy C. Andrews, Roehl M. Cinco, Michael W. Wemple, George Christou, Neil A. Law, Vincent L. Pecoraro, Kenneth Sauer, Vittal K. Yachandra, and Melvin P. Klein pp 4465–4470 DOI: 10.1021/ja9610951

One- and Two-Dimensional Electron Spin Echo Envelope Modulation Study of the Intermediate Electron Acceptor Pheophytin in 14N- and 15N-Labeled Photosystem II Yiannis Deligiannakis and A. William Rutherford pp 4471–4480 DOI: 10.1021/ja963293y

ESE-ENDOR and ESEEM Characterization of Water and Methanol Ligation to a Dinuclear Mn(III)Mn(IV) Complex David W. Randall, Andrew Gelasco, M. Tyler Caudle, Vincent L. Pecoraro, and R. David Britt pp 4481–4491 DOI: 10.1021/ja963682s

High-Spin Cation Radicals of Meta−Para Aniline Oligomers M. M. Wienk and R. A. J. Janssen pp 4492–4501 DOI: 10.1021/ja963772x

Proton-Decoupled Carbon-13 NMR Spectroscopy in a Lyotropic Chiral Nematic Solvent as an Analytical Tool for the Measurement of the Enantiomeric Excess A. Meddour, P. Berdague, A. Hedli, J. Courtieu, and P. Lesot pp 4502–4508 DOI: 10.1021/ja964002o

Pericyclic and Pseudopericyclic Thermal Cheletropic Decarbonylations:  When Can a Pericyclic Reaction Have a Planar, Pseudopericyclic Transition State?1 David M. Birney, Sihyun Ham, and Gregory R. Unruh pp 4509–4517 DOI: 10.1021/ja963551r Supporting Info

Interaction of Oxygen with Conjugated Polymers:  Charge Transfer Complex Formation with Poly(3-alkylthiophenes) Mohamed S. A. Abdou, Francesco P. Orfino, Yongkeun Son, and Steven Holdcroft pp 4518–4524 DOI: 10.1021/ja964229j

Chiral Ions in the Gas Phase. 1. Intramolecular Racemization and Isomerization of O-Protonated (S)-trans-4-Hexen-3-ol Anna Troiani, Francesco Gasparrini, Felice Grandinetti, and Maurizio Speranza pp 4525–4534 DOI: 10.1021/ja960212p

Selective Catalytic Hydroxylation of a Steroid by an Artificial Cytochrome P-450 Enzyme Ronald Breslow, Xiaojun Zhang, and Ying Huang pp 4535–4536 DOI: 10.1021/ja9704951

Solvatothermal Routes to Poly(carbon monosulfide)s Using Kinetically Stabilized Precursors Jun-Hong Chou and Thomas B. Rauchfuss pp 4537–4538 DOI: 10.1021/ja970042w Supporting Info

Fabrication of Metallic and Bimetallic Nanostructures by Electron Beam Induced Metallization of Surfactant Stabilized Pd and Pd/Pt Clusters Manfred T. Reetz and Martin WinterGünter Dumpich, Jens Lohau, and Stefan Friedrichowski pp 4539–4540 DOI: 10.1021/ja970054h

Synthesis and Lewis Acid-Catalyzed Nucleophilic Substitution of Chiral 1-Alkoxyalkyl Carboxylates Hiroshi Matsutani, Satsuki Ichikawa, Jayamma Yaruva, Tetsuo Kusumoto, and Tamejiro Hiyama pp 4541–4542 DOI: 10.1021/ja970153v Supporting Info

Synthesis, Structure, and Reactivity of Monomeric Titanocene Sulfido and Disulfide Complexes. Reaction of H2 with a Terminal MS Bond Zachary K. Sweeney, Jennifer L. Polse, Richard A. Andersen, Robert G. Bergman, and Mark G. Kubinec pp 4543–4544 DOI: 10.1021/ja970168t Supporting Info

H12Pd28(PtPMe3)(PtPPh3)12(CO)27, a High-Nuclearity Pd28Pt13 Cluster Containing 12 Hydrido Atoms:  A Possible Molecular Hydrogen-Storage Model for Palladium Metal John M. Bemis and Lawrence F. Dahl pp 4545–4546 DOI: 10.1021/ja970528c Supporting Info

Regioselective Synthesis of 1,3,5-Unsymmetrically Substituted Benzenes via the Palladium-Catalyzed Cyclotrimerization of 1,3-Diynes Akira Takeda, Akio Ohno, Isao Kadota, Vladimir Gevorgyan, and Yoshinori Yamamoto pp 4547–4548 DOI: 10.1021/ja970339u Supporting Info

Direct XANES Evidence for Charge Transfer in Co−CO2 Complexes Etsuko Fujita, Lars R. Furenlid, and Mark W. Renner pp 4549–4550 DOI: 10.1021/ja970151a Supporting Info

Direct Observation of a Hydrogen Abstraction Product upon Photooxidation of a Tungsten Cyclohexenyl Carbyne Complex A. Denise Main and Lisa McElwee-White pp 4551–4552 DOI: 10.1021/ja970104i Supporting Info

A Combinatorial Approach for Polymer Design Stephen Brocchini, Kenneth James, Varawut Tangpasuthadol, and Joachim Kohn pp 4553–4554 DOI: 10.1021/ja970389z Supporting Info

A Streamlined Route to Highly Conjugated, All-E Polyenes Characteristic of Oxo Polyene Macrolide Antibiotics Bruce H. Lipshutz and Craig Lindsley pp 4555–4556 DOI: 10.1021/ja963930k Supporting Info

Oxiranyl Anions in Organic Synthesis:  Application to the Synthesis of Hemibrevetoxin B Yuji Mori, Keisuke Yaegashi, and Hiroshi Furukawa pp 4557–4558 DOI: 10.1021/ja9701523 Supporting Info

Chromophore Design for Photorefractive Applications Bernard Kippelen, Fabienne Meyers, Nasser Peyghambarian, and Seth R. Marder pp 4559–4560 DOI: 10.1021/ja9643477

Intermolecular Coupling Reaction of Alkynes with Vinyl Bromide with Selective Skeletal Rearrangement Tamotsu Takahashi, Zhenfeng Xi, Reinald Fischer, Shouquan Huo, Chanjuan Xi, and Kiyohiko Nakajima pp 4561–4562 DOI: 10.1021/ja970055+ Supporting Info

Reversible Structural Transformation and Drastic Magnetic Change in a Copper Hydroxides Intercalation Compound Wataru Fujita and Kunio Awaga pp 4563–4564 DOI: 10.1021/ja970239o

Origin of Stereochemistry in Simple Pyrrolidinone Enolate Alkylations A. I. Meyers, Mark A. Seefeld, Bruce A. Lefker, and James F. Blake pp 4565–4566 DOI: 10.1021/ja970173x Supporting Info

Ullmann's Encyclopedia of Industrial Chemistry, Fifth, Completely Revised Edition, Volume A27:  Thorium and Thorium Compounds to Vitamins Edited by Barbara Elvers and Stephen Hawkins. VCH:  Weinheim. 1996. xv + 613 pp. $650.00. ISBN 3-527-20127-0. p 4567 DOI: 10.1021/ja9657521

Electronic Conference on Trends in Organic Chemistry:  ECTOC-1/CD-ROM. June 12−July 7, 1995 Edited by Henry S. Rzepa, Christopher Leach, and Jonathan M. Goodman. The Royal Society of Chemistry:  Cambridge, 1996. £50.00. ISBN 0-85404-8995. James W. Canary p 4567 DOI: 10.1021/ja9659232

Advances in Oxygenated Processes. Volume 4 Edited by Alfons L. Baumstark (Georgia State University). JAI Press, Inc.:  Greenwich. 1995. x + 242 pp. $97.50. ISBN 1-55938-451-4. Naresh Dalal pp 4567–4568 DOI: 10.1021/ja9655606

Active Metals:  Preparation, Characterization, Applications Edited by Alois Fürstner (Max Planck Institut für Kohlenforshung). VCH:  New York. 1995. xviii + 464 pp. $155.00. ISBN 3-527-29207-1. Jeffrey M. Stryker p 4568 DOI: 10.1021/ja955385d

Issue 20

Kinetics of 5-exo Cyclizations of N-Alkyl-4-pentenaminyl Radicals and β-Fragmentations of β-(Dialkylamino)alkyl Radicals Martin Newcomb, Osama M. Musa, Felix N. Martinez, and John H. Horner pp 4569–4577 DOI: 10.1021/ja964318w Supporting Info

Directed Electrophilic Cyclizations:  Efficient Methodology for the Synthesis of Fused Polycyclic Aromatics Marc B. Goldfinger, Khushrav B. Crawford, and Timothy M. Swager pp 4578–4593 DOI: 10.1021/ja9642673 Supporting Info

The Protiotetramethylammonium Dication (CH3)3NCH42+:  Hydrogen/Deuterium Exchange and Calculational Studies. Search for the Parent Protioammonium Dication NH52+ 1 George A. Olah, Arwed Burrichter, Golam Rasul, and G. K. Surya Prakash pp 4594–4598 DOI: 10.1021/ja962572i

Dicopper(I) Trefoil Knots:  Topological and Structural Effects on the Demetalation Rates and Mechanism Michel Meyer, Anne-Marie Albrecht-Gary, Christiane O. Dietrich-Buchecker, and Jean-Pierre Sauvage pp 4599–4607 DOI: 10.1021/ja963737q Supporting Info

SMoG:  de Novo Design Method Based on Simple, Fast, and Accurate Free Energy Estimates. 2. Case Studies in Molecular Design Robert S. DeWitte, Alexey V. Ishchenko, and Eugene I. Shakhnovich pp 4608–4617 DOI: 10.1021/ja963689+ Supporting Info

Polyhedral Ionic Molecules Alexander I. Boldyrev and Jack Simons pp 4618–4621 DOI: 10.1021/ja964063m

Synthesis and Characterization of Photorefractive Polymers Containing Transition Metal Complexes as Photosensitizer Zhonghua Peng, Ali R. Gharavi, and Luping Yu pp 4622–4632 DOI: 10.1021/ja970048l

Nucleation and Oriented Growth of Aromatic Crystals on Friction-Transferred Poly(tetrafluoroethylene) Layers P. Damman, M. Dosière, M. Brunel, and J. C. Wittmann pp 4633–4639 DOI: 10.1021/ja961173k

Theoretical and Experimental Study of Isoguanine and Isocytosine:  Base Pairing in an Expanded Genetic System Christopher Roberts, Rajanikanth Bandaru, and Christopher Switzer pp 4640–4649 DOI: 10.1021/ja970123s Supporting Info

Germanium-Containing Heterobicyclic 10-π-Electron Ring Systems. Synthesis and Characterization of Neutral and Cationic Germanium(II) Derivatives of Aminotroponiminates H. V. Rasika Dias and Ziyun Wang pp 4650–4655 DOI: 10.1021/ja970196b Supporting Info

A Novel Molecular Gallium Phosphonate Cage Containing Sandwiched Lithium Ions:  Synthesis, Structure, and Reactivity Mrinalini G. Walawalkar, Ramaswamy Murugavel, Andreas Voigt, Herbert W. Roesky, and Hans-Georg Schmidt pp 4656–4661 DOI: 10.1021/ja964263y Supporting Info

Solid-State Water-Catalyzed Transformation at Room Temperature of a Nonluminescent Linear-Chain Uranyl Phenylphosphonate into a Luminescent One Daniel Grohol and Abraham Clearfield pp 4662–4668 DOI: 10.1021/ja970272a Supporting Info

The First Evidence of Insertion of Isocyanide into a Metal−Sulfur Bond:  Catalytic and Stoichiometric Behavior of Isocyanide and Thiolate Ligands on Palladium and Platinum Hitoshi Kuniyasu, Kunihiko Sugoh, Moon Song Su, and Hideo Kurosawa pp 4669–4677 DOI: 10.1021/ja970518b Supporting Info

An Investigation of the Electronic Structures of CpCo(CO)2 and CpCo(CO)2- Using Experimental and Theoretical Techniques J. M. Campbell, A. A. Martel, S.-P. Chen, and I. M. Waller pp 4678–4685 DOI: 10.1021/ja9627508

Absolute Heats of Formation of Phenylcarbene and Vinylcarbene John C. Poutsma, John J. Nash, Jose A. Paulino, and Robert R. Squires pp 4686–4697 DOI: 10.1021/ja963918s Supporting Info

Synthesis of Crystalline, Nanometer-Scale, −(CH2)x− Clusters and Films on Gold Surfaces Kannan Seshadri, Sundar V. Atre, Yu-Tai Tao, Mong-Tung Lee, and David L. Allara pp 4698–4711 DOI: 10.1021/ja964395r

Rearrangement of Protonated Propene Oxide to Protonated Propanal James M. Coxon, Robert G. A. R. Maclagan, Arvi Rauk, Aaron J. Thorpe, and Dale Whalen pp 4712–4718 DOI: 10.1021/ja963057n Supporting Info

Conformation and Orientation of Met-enkephalin Analogues in a Lyotropic Liquid Crystal Studied by the Magic-Angle- and Near-Magic-Angle-Spinning Two-Dimensional Methodology in Nuclear Magnetic Resonance:  Relationships between Activities and Membrane-Associated Structures Atsuomi Kimura, Naohito Kuni, and Hideaki Fujiwara pp 4719–4725 DOI: 10.1021/ja963344r

A W-Band Electron Spin Echo Envelope Modulation Study of a Single Crystal of Azurin J. W. A. Coremans, O. G. Poluektov, E. J. J. Groenen, G. W. Canters, H. Nar, and A. Messerschmidt pp 4726–4731 DOI: 10.1021/ja9638420

Solution NMR Study of the Electronic and Molecular Structure of the Heme Cavity in High-Spin, Resting State Horseradish Peroxidase Jeffrey S. de Ropp, Pravat Mandal, Samuel L. Brauer, and Gerd N. La Mar pp 4732–4739 DOI: 10.1021/ja9642018 Supporting Info

Complex Ordering in Thin Films of Di- and Trifunctionalized Hexaalkoxytriphenylene Derivatives Philippe Henderson, Dierk Beyer, Ulrich Jonas, Olaf Karthaus, Helmut Ringsdorf, Paul A. Heiney, Nicholas C. Maliszewskyj, Surya S. Ghosh, Oksana Y. Mindyuk, and Jack Y. Josefowicz pp 4740–4748 DOI: 10.1021/ja964036w

Oxidation of Threonylmethionine by Peroxynitrite. Quantification of the One-Electron Transfer Pathway by Comparison to One-Electron Photooxidation Jana L. Jensen, Brian L. Miller, Xiaoping Zhang, Gordon L. Hug, and Christian Schöneich pp 4749–4757 DOI: 10.1021/ja964031z Supporting Info

pH and Driving Force Dependence of Intramolecular Oxyferryl Heme Reduction in Myoglobin Craig W. Fenwick, Ann M. English, and James F. Wishart pp 4758–4764 DOI: 10.1021/ja963108g

Mechanism of Lithium Diisopropylamide-Mediated Ester Deprotonation:  The Role of Disolvated Monomers Xiufeng Sun, Sarita L. Kenkre, Julius F. Remenar, James H. Gilchrist, and David B. Collum pp 4765–4766 DOI: 10.1021/ja970406k Supporting Info

Prototropic vs Whole Water Exchange Contributions to the Solvent Relaxation Enhancement in the Aqueous Solution of a Cationic Gd3+ Macrocyclic Complex Silvio Aime, Alessandro Barge, Mauro Botta, David Parker, and Alvaro S. De Sousa pp 4767–4768 DOI: 10.1021/ja963743m Supporting Info

Molecular Fluoro Palladium Complexes Scott L. Fraser, Mikhail Yu. Antipin, Viktor N. Khroustalyov, and Vladimir V. Grushin pp 4769–4770 DOI: 10.1021/ja963984u Supporting Info

Rigid Geometry Bis(arylnitrenes) as Definitive Tests for Angular Dependence of Zero-Field Splitting in High Spin Molecules Rajdeep S. Kalgutkar and Paul M. Lahti pp 4771–4772 DOI: 10.1021/ja963723k Supporting Info

Asymmetric Propargylation/Allylation/Pauson−Khand Cyclization of a Planar Chiral Anisole Tricarbonylchromium Complex Anna Quattropani, Gary Anderson, Gérald Bernardinelli, and E. Peter Kündig pp 4773–4774 DOI: 10.1021/ja964256+ Supporting Info

Preparation, X-ray Crystal Structure, and Chemistry of ((Arylsulfonyl)methyl)(phenyl)iodonium Triflates. Stable Alkyliodonium Salts Viktor V. Zhdankin, Scott A. Erickson, and Kari J. Hanson pp 4775–4776 DOI: 10.1021/ja9707926 Supporting Info

Molecular Architecture via Coordination:  Self-Assembly of Nanoscale Platinum Containing Molecular Hexagons Peter J. Stang, Neal E. Persky, and Joseph Manna pp 4777–4778 DOI: 10.1021/ja970537l Supporting Info

Regioselective Cyclic Cotrimerization of α,β-Enones and Alkynes by a Nickel−Aluminum Catalyst System Shin-ichi Ikeda, Naoyoshi Mori, and Yoshiro Sato pp 4779–4780 DOI: 10.1021/ja9704491 Supporting Info

Hexahapto Metal Coordination to Curved Polyaromatic Hydrocarbon Surfaces:  The First Transition Metal Corannulene Complex T. Jon Seiders, Kim K. Baldridge, Joseph M. O'Connor, and Jay S. Siegel pp 4781–4782 DOI: 10.1021/ja964380t Supporting Info

New Asymmetric Reactions Using a Gallium Complex:  A Highly Enantioselective Ring Opening of Epoxides with Thiols Catalyzed by a Gallium·Lithium·Bis(binaphthoxide) Complex Takehiko Iida, Noriyoshi Yamamoto, Hiroaki Sasai, and Masakatsu Shibasaki pp 4783–4784 DOI: 10.1021/ja9702576 Supporting Info

Acetolysis of Styryl and 1-Decenyl Iodonium Salts. Occurrence of Two-Step Mechanism via Vinylenephenonium Ion and One-Step Inversion Mechanism Tadashi Okuyama and Masahito Ochiai pp 4785–4786 DOI: 10.1021/ja9705607

The τ-Nitrogen of D2 Histidine 189 is the Hydrogen Bond Donor to the Tyrosine Radical YD• of Photosystem II Kristy A. Campbell, Jeffrey M. Peloquin, Bruce A. Diner, Xiao-Song Tang, Dexter A. Chisholm, and R. David Britt pp 4787–4788 DOI: 10.1021/ja9706155

Contribution to the Study of the Gauche Effect. The Complete Structure of the Anti Rotamer of 1,2-Difluoroethane Norman C. Craig, Anthony Chen, Ki Hwan Suh, Stefan Klee, Georg C. Mellau, Brenda P. Winnewisser, and Manfred Winnewisser pp 4789–4790 DOI: 10.1021/ja963819e

Efficient Oligomerization of Negatively-Charged β-Amino Acids at −20 °C Rihe Liu and Leslie E. Orgel pp 4791–4792 DOI: 10.1021/ja9702529 Supporting Info

Epitaxial Growth of Polymers Induced by Cationic Ring-Opening Polymerization below the Equilibrium Monomer Concentration Masahito Sano and Momoyo Wada pp 4793–4794 DOI: 10.1021/ja970527k

Structural Electron Crystallography By Douglas L. Dorset (Hauptman-Woodward Medical Research Institute, Inc.). Plenum Press:  New York. 1995. xiii + 452 pp. $69.50. ISBN 0-306-45049-6. Katherine A. Kantardjieff p 4795 DOI: 10.1021/ja9655045

Crystal Structure of the Anticancer Drug Cisplatin Bound to Duplex DNA J. Am. Chem. Soc. 1996, 118, 12309−12321 Patricia M. Takahara, Christin A. Frederick, and Stephen J. Lippard p 4795 DOI: 10.1021/ja975403m

Vesicles. Surfactant Science Series, Volume 62 Edited by Morton Rosoff (Long Island University). Dekker:  New York. 1996. ix + 752 pp. $195.00. ISBN 0-8247-9603-9. Janos H. Fendler pp 4795–4796 DOI: 10.1021/ja965734j

Advances in Gas Phase Ion Chemistry. Vol. 2 Edited by Nigel G. Adams and Lucia M. Babcock (University of Georgia). JAI Press:  Greenwich. 1996. x + 266 pp. $97.50. ISBN 1-55938-703-3. Diethard K. Bohme p 4796 DOI: 10.1021/ja965647r

Catalysis of Organic Reactions Edited by Russell E. Malz, Jr. (Uniroyal Chemical Company, Inc.). Marcel Dekker, Inc.:  Monticello, NY. 1996. xvi + 496 pp. $195.00. ISBN-8247-9807-4. p 4796 DOI: 10.1021/ja9657770

Issue 21

Radical Cyclizations of Acylgermanes. New Reagent Equivalents of the Carbonyl Radical Acceptor Synthon Dennis P. Curran, Ulf Diederichsen, and Michael Palovich pp 4797–4804 DOI: 10.1021/ja970219m Supporting Info

Molecular Dynamics Simulations Highlight the Structural Differences among DNA:DNA, RNA:RNA, and DNA:RNA Hybrid Duplexes Thomas E. Cheatham, III, and Peter A. Kollman pp 4805–4825 DOI: 10.1021/ja963641w

Structure, Motion, and Exchange Coupling of 15NO2/15NO2 Radical Pairs Occupying Adjacent Solvent Cavities of α-HNIW, a Nitramine Hydrate Lev R. Ryzhkov and J. Michael McBride pp 4826–4833 DOI: 10.1021/ja9631615 Supporting Info

Stepwise and Concerted Solvolytic Elimination and Substitution Reactions:  E1 Reaction via a Primary Carbocation Qingshui Meng and Alf Thibblin pp 4834–4840 DOI: 10.1021/ja970362f Supporting Info

Targeting the Dimerization Interface of HIV-1 Protease:  Inhibition with Cross-Linked Interfacial Peptides Reena Zutshi, Jeff Franciskovich, Michael Shultz, Barbara Schweitzer, Patricia Bishop, Matt Wilson, and Jean Chmielewski pp 4841–4845 DOI: 10.1021/ja962496j Supporting Info

Thermal (Iodide) and Photoinduced Electron-Transfer Catalysis in Biaryl Synthesis via Aromatic Arylations with Diazonium Salts D. Kosynkin, T. M. Bockman, and J. K. Kochi pp 4846–4855 DOI: 10.1021/ja970599b Supporting Info

Synthesis and Biological Evaluation of Aza-C-disaccharides:  (1→6), (1→4), and (1→1) Linked Sugar Mimics Brian A. Johns, Y. T. Pan, Alan D. Elbein, and Carl R. Johnson pp 4856–4865 DOI: 10.1021/ja9642929 Supporting Info

Polymerization of the Inverted Hexagonal Phase Warunee Srisiri, Thomas M. Sisson, David F. O'Brien, K. M. McGrath, Yuqi Han, and Sol M. Gruner pp 4866–4873 DOI: 10.1021/ja970052x

Chemical Library Purification Strategies Based on Principles of Complementary Molecular Reactivity and Molecular Recognition Daniel L. Flynn, Joyce Z. Crich, Rajesh V. Devraj, Susan L. Hockerman, John J. Parlow, Michael S. South, and Scott Woodard pp 4874–4881 DOI: 10.1021/ja963462e Supporting Info

Polymer-Supported Quenching Reagents for Parallel Purification R. John Booth and John C. Hodges pp 4882–4886 DOI: 10.1021/ja9634637 Supporting Info

Theoretical Studies on the Addition of Polymetallic Lithium Organocuprate Clusters to Acetylene. Cooperative Effects of Metals in a Trap-and-Bite Reaction Pathway Eiichi Nakamura, Seiji Mori, Masaharu Nakamura, and Keiji Morokuma pp 4887–4899 DOI: 10.1021/ja964208p Supporting Info

Reaction Pathway of the Conjugate Addition of Lithium Organocuprate Clusters to Acrolein Eiichi Nakamura, Seiji Mori, and Keiji Morokuma pp 4900–4910 DOI: 10.1021/ja964209h Supporting Info

Nickel-Catalyzed Organozinc-Promoted Carbocyclizations of Electron-Deficient Alkenes with Tethered Unsaturation John Montgomery, Eric Oblinger, and Alexey V. Savchenko pp 4911–4920 DOI: 10.1021/ja9702125 Supporting Info

Iron L-Edge X-ray Absorption Spectroscopy of Myoglobin Complexes and Photolysis Products Hongxin Wang, Gang Peng, Lisa M. Miller, Eva M. Scheuring, S. J. George, Mark R. Chance, and Stephen P. Cramer pp 4921–4928 DOI: 10.1021/ja961446b

Self-Organized Porphyrin Dimer as a Highly Specific Receptor for Pyrazine Derivatives Yasuhisa Kuroda, Ayato Kawashima, Yuichirou Hayashi, and Hisanobu Ogoshi pp 4929–4933 DOI: 10.1021/ja963764g

Allosteric Effects in Polynuclear Triple-Stranded Ferric Complexes Sylvie Blanc, Pnina Yakirevitch, Emmanuelle Leize, Michel Meyer, Jacqueline Libman, Alain Van Dorsselaer, Anne-Marie Albrecht-Gary, and Abraham Shanzer pp 4934–4944 DOI: 10.1021/ja962472c Supporting Info

Liquid-Biphase Hydrogenolysis of Benzo[b]thiophene by Rhodium Catalysis Claudio Bianchini, Andrea Meli, Veronique Patinec, Volker Sernau, and Francesco Vizza pp 4945–4954 DOI: 10.1021/ja9641517

A New Macrocyclic N3S2 Ligand and Its Nickel(II), Cobalt(II), Rhodium(III)-103, and Rhodium(III)-105 Complexes Dawn C. Goodman, Joseph H. Reibenspies, Niranjan Goswami, Silvia Jurisson, and Marcetta Y. Darensbourg pp 4955–4963 DOI: 10.1021/ja964187z Supporting Info

A Computational Study of the Role of Solvation Effects in Reverse Turn Formation in the Tetrapeptides APGD and APGN Donald Bashford, David A. Case, Chris Choi, and Garry P. Gippert pp 4964–4971 DOI: 10.1021/ja963516k

A Solid-State 1NMR and Theoretical Study of the Chemical Bonding in Disilenes Robert West, Jefferson D. Cavalieri, Jarrod J. Buffy, Charles Fry, Kurt W. Zilm, James C. Duchamp, Mitsuo Kira, Takeaki Iwamoto, Thomas Müller, and Yitzhak Apeloig pp 4972–4976 DOI: 10.1021/ja963921b Supporting Info

Duocarmycin SA Shortened, Simplified, and Extended Agents:  A Systematic Examination of the Role of the DNA Binding Subunit Dale L. Boger, Donald L. Hertzog, Bernd Bollinger, Douglas S. Johnson, Hui Cai, Joel Goldberg, and Philip Turnbull pp 4977–4986 DOI: 10.1021/ja9637208 Supporting Info

Reversed and Sandwiched Analogs of Duocarmycin SA:  Establishment of the Origin of the Sequence-Selective Alkylation of DNA and New Insights into the Source of Catalysis Dale L. Boger, Bernd Bollinger, Donald L. Hertzog, Douglas S. Johnson, Hui Cai, Philippe Mésini, Robert M. Garbaccio, Qing Jin, and Paul A. Kitos pp 4987–4998 DOI: 10.1021/ja9637210 Supporting Info

Theoretical and Experimental Studies of the Zwitterion Neutral Form Equilibrium of Ampholytes in Pure Solvents and Mixtures Peter I. Nagy and Krisztina Takács-Novák pp 4999–5006 DOI: 10.1021/ja963512f Supporting Info

Linear Free Energy of Activation Relationship for Barrierless Association Reactions Pascal de Sainte Claire, Gilles H. Peslherbe, Haobin Wang, and William L. Hase pp 5007–5012 DOI: 10.1021/ja961239b

Theoretical Study of Ion Pair SN2 Reactions:  Ethyl vs Methyl Reactivities and Extension to Higher Alkyls Andrew Streitwieser, Godwin Sik-Cheung Choy, and Faraj Abu-Hasanayn pp 5013–5019 DOI: 10.1021/ja961673d Supporting Info

Theoretical Study of C−C Bond Formation in the Methanol-to-Gasoline Process Solange R. Blaszkowski and Rutger A. van Santen pp 5020–5027 DOI: 10.1021/ja963530x

Experimental Determination of the Electron Density Topology in a Non-centrosymmetric Transition Metal Complex:  [Ni(H3L)][NO3][PF6] [H3L = N,N‘,N‘‘-Tris(2-hydroxy-3-methylbutyl)-1,4,7-triazacyclononane] G. T. Smith, P. R. Mallinson, C. S. Frampton, L. J. Farrugia, R. D. Peacock, and J. A. K. Howard pp 5028–5034 DOI: 10.1021/ja964264q Supporting Info

Thiacyclohexatriene−Thiopheneylcarbene Rearrangement. A Sulfur Analog of the Cycloheptatetraene−Phenylcarbene Rearrangement Weitao Pan, Metin Balci, and Philip B. Shevlin pp 5035–5036 DOI: 10.1021/ja970241f Supporting Info

Unprecedented Radical Cyclizations Cascade Leading to Bicyclo[3.1.1]Heptanes. Toward a New Generation of Radical Cascades Stéphane Bogen, Louis Fensterbank, and Max Malacria pp 5037–5038 DOI: 10.1021/ja9702879 Supporting Info

Platinum-Catalyzed Acrylonitrile Hydrophosphination via Olefin Insertion into a Pt−P Bond Denyce K. Wicht, Igor V. Kourkine, Belinda M. Lew, J. Mulei Nthenge, and David S. Glueck pp 5039–5040 DOI: 10.1021/ja970355r Supporting Info

Quantitative Analysis of Hydrophobically Induced Folding in a Minimal Model System Robb R. Gardner, Laurie A. Christianson, and Samuel H. Gellman pp 5041–5042 DOI: 10.1021/ja970531w Supporting Info

Anthraquinone Photonuclease Structure Determines Its Mode of Binding to DNA and the Cleavage Chemistry Observed David T. Breslin, Joseph E. Coury, Jaimie R. Anderson, Lori McFail-Isom, Yongzhi Kan, Loren Dean Williams, Lawrence A. Bottomley, and Gary B. Schuster pp 5043–5044 DOI: 10.1021/ja963607h Supporting Info

Sensitivity of DNA-Mediated Electron Transfer to the Intervening π-Stack:  A Probe for the Integrity of the DNA Base Stack Daniel B. Hall and Jacqueline K. Barton pp 5045–5046 DOI: 10.1021/ja970366k Supporting Info

Observation of Alignment Effects in High-Field Proton NMR Spectra of Hydrogenated Fullerenes:  Evidence for Residual Anisotropic Dipole−Dipole Couplings Lawrence B. Alemany, Alexander Gonzalez, Weimei Luo, and W. E. BillupsM. Robert WillcottEdward Ezell and Elliott Gozansky pp 5047–5048 DOI: 10.1021/ja963493+

Stopped-Flow Photo-CIDNP Observation of Protein Folding P. J. Hore, Stephen L. Winder, Claire H. Roberts, and Christopher M. Dobson pp 5049–5050 DOI: 10.1021/ja9644135

Determination of the Quenching Rate Constants of Singlet Oxygen by Derivatized Nucleosides in Nonaqueous Solution Ferran Prat, Chi-Chien Hou, and Christopher S. Foote pp 5051–5052 DOI: 10.1021/ja963537e

The Role of Alanine Sequences in Forming β-Sheets of Spider Dragline Silk Erik J. Spek, Huai-Chuan Wu, and Neville R. Kallenbach pp 5053–5054 DOI: 10.1021/ja963218n

Determination of Homonuclear 13C−13C J Couplings between Aliphatic Carbon Atoms in Perdeuterated Proteins Mirko Hennig, Dagmar Ott, Petra Schulte, Ralf Löwe, Joachim Krebs, Thomas Vorherr, Wolfgang Bermel, Harald Schwalbe, and Christian Griesinger pp 5055–5056 DOI: 10.1021/ja970034f Supporting Info

Palladium-Catalyzed Carboxylation of Allyl Stannanes Min Shi and Kenneth M. Nicholas pp 5057–5058 DOI: 10.1021/ja9639832 Supporting Info

Direct Observation of Singlet Phenylnitrene and Measurement of Its Rate of Rearrangement Nina P. Gritsan, Tetsuro Yuzawa, and Matthew S. Platz pp 5059–5060 DOI: 10.1021/ja963753n

Transient Absorption Spectra and Reaction Kinetics of Singlet Phenylnitrene and Its 2,4,6-Tribromo Derivative in Solution Reto Born, Clemens Burda, Paul Senn, and Jakob Wirz pp 5061–5062 DOI: 10.1021/ja970205g

Catalytic Asymmetric Wacker-Type Cyclization Yasuhiro Uozumi, Kazuhiko Kato, and Tamio Hayashi pp 5063–5064 DOI: 10.1021/ja9701366 Supporting Info

Low Optical Bandgap Polythiophenes by an Alternating Donor/Acceptor Repeat Unit Strategy Qing T. Zhang and James M. Tour pp 5065–5066 DOI: 10.1021/ja9640399 Supporting Info

Photoinitiation of Gas-Phase SN2 Reactions through the Evans−Polanyi Excited State Surface Caroline E. H. Dessent and Mark A. Johnson pp 5067–5068 DOI: 10.1021/ja970583l

A New Mechanistic Probe for Cytochrome P450:  An Application of Isotope Effect Profiles John I. Manchester, Joseph P. Dinnocenzo, LeeAnn Higgins, and Jeffrey P. Jones pp 5069–5070 DOI: 10.1021/ja9705250

Thermal Alkane C−H Bond Activation by a Tungsten Alkylidene Complex:  The Reversal of α-Hydrogen Elimination Elizabeth Tran and Peter Legzdins pp 5071–5072 DOI: 10.1021/ja9704850 Supporting Info

Low-Frequency EPR of the Copper in Particulate Methane Monooxygenase from Methylomicrobium albus BG8 Hua Yuan, Mary Lynne Perille Collins, and William E. Antholine pp 5073–5074 DOI: 10.1021/ja9701669

The Remarkable Catalytic Activity of Alkali-Metal Alkoxide Clusters in the Ester Interchange Reaction Matthew G. Stanton and Michel R. Gagné pp 5075–5076 DOI: 10.1021/ja970556v Supporting Info

Carbonylation of Benzene in a Zeolite Catalyst T. H. Clingenpeel and A. I. Biaglow pp 5077–5078 DOI: 10.1021/ja970325o

The HPLC Solvent Guide By Paul C. Sadek (Analytical Consulting Laboratories). Wiley:  New York. 1996. xii + 346 pp. $54.95. ISBN 0-471-11855-9. John C. Ford p 5079 DOI: 10.1021/ja965769j

Dendritic Molecules:  Concepts, Syntheses, Perspectives By George R. Newkome and Charles N. Moorefield (University of South Florida) and Fritz Vögtle (Universität Bonn). VCH:  Weinheim. 1996. vi + 261 pp. DM198. ISBN 3-527-29325-6. Robert Engel p 5079 DOI: 10.1021/ja9657871

Mesomolecules:  From Molecules to Materials Search Series, Volume 1 Edited by G. David Mendenhall (Michigan Technical University), Arthur Greenberg (University of North Carolina at Charlotte), and Joel F. Liebman (University of Maryland Baltimore County). Chapman & Hall:  New York, 1995. xi + 199 pp. $59.95. ISBN:  0-412-03811-0. Stephen G. DiMagno pp 5079–5080 DOI: 10.1021/ja9552555

DNA:  The Double-Helix-Perspective and Prospective at Forty Years Edited by Donald A. Chambers (University of Illinois). Annals of the New York Academy of Sciences. New York Academy of Sciences:  New York. 1995. 472 pp. $95.00. ISBN 0-89766-905-3. p 5080 DOI: 10.1021/ja9655404

Synthetic Polymers:  Technology, properties, applications By Dorel Feldman (Concordia University) and Alla Barbalata (Université de Moncton). Chapman & Hall:  Florence. 1996. xv + 370 pp. ISBN 0-412-71040-4. Adriane Ludwick p 5080 DOI: 10.1021/ja965754l

Gmelin Handbook of Inorganic and Organometallic Chemistry, 8th ed. Supplement Volume C2, Dinuclear Compounds with Hydrogen. Polyphosphanes Including Organyl-Substituted Derivatives Edited by Hans Schafer. Springer:  Berlin. 1995. xx + 349 pp. ISBN 3-540-93714-5. p 5080 DOI: 10.1021/ja965779k

Issue 22

The Efficiency of Light-Directed Synthesis of DNA Arrays on Glass Substrates Glenn H. McGall, Anthony D. Barone, Martin Diggelmann, Stephen P. A. Fodor, Erik Gentalen, and Nam Ngo pp 5081–5090 DOI: 10.1021/ja964427a Supporting Info

The Chemistry of the N-Methyl-3-dehydropyridinium Ylid Weitao Pan and Philip B. Shevlin pp 5091–5094 DOI: 10.1021/ja9639168

1-(2,4,6-Tri-tert-butylphenyl)-3-methylphosphole:  A Phosphole with a Significantly Flattened Phosphorus Pyramid Having Pronounced Characteristics of Aromaticity György Keglevich, Zsolt Böcskei, György Miklós Keserü, Kálmán Újszászy, and Louis D. Quin pp 5095–5099 DOI: 10.1021/ja970463d Supporting Info

Evidence for the Intracomplex Reaction in Gattermann−Koch Formylation in Superacids:  Kinetic and Regioselectivity Studies Mutsuo Tanaka, Masahiro Fujiwara, Qiang Xu, Yoshie Souma, Hisanori Ando, and Kenneth K. Laali pp 5100–5105 DOI: 10.1021/ja9641012

Single-Step Synthesis of Cell-Permeable Protein Dimerizers That Activate Signal Transduction and Gene Expression Steven T. Diver and Stuart L. Schreiber pp 5106–5109 DOI: 10.1021/ja963891c

Transient Raman Observations of Heme Electronic and Vibrational Photodynamics in Deoxyhemoglobin M. C. Simpson, E. S. Peterson, C. F. Shannon, D. D. Eads, J. M. Friedman, C. M. Cheatum, and M. R. Ondrias pp 5110–5117 DOI: 10.1021/ja961198j

Neutron Resonance Scattering Shows Specific Binding of Plutonium to the Calcium-Binding Sites of the Protein Calmodulin and Yields Precise Distance Information P. A. Seeger, S. E. Rokop, P. D. Palmer, S. J. Henderson, D. E. Hobart, and J. Trewhella pp 5118–5125 DOI: 10.1021/ja9633124

Cytochrome P-450 Catalyzed Insecticide Metabolism. Prediction of Regio- and Stereoselectivity in the Primer Metabolism of Carbofuran:  A Theoretical Study György M. Keserü, István Kolossváry, and Béla Bertók pp 5126–5131 DOI: 10.1021/ja9639372

Intramolecular Ion−Ion Interactions in Zwitterionic Metallocene Olefin Polymerization Catalysts Derived from “Tucked-In” Catalyst Precursors and the Highly Electrophilic Boranes XB(C6F5)2 (X = H, C6F5) Yimin Sun, Rupert E. v. H. Spence, Warren E. Piers, Masood Parvez, and Glenn P. A. Yap pp 5132–5143 DOI: 10.1021/ja970140h Supporting Info

Carbon−Carbon Bonds Functioning as Electron Shuttles:  The Generation of Electron-Rich Manganese(II)−Schiff Base Complexes and Their Redox Chemistry Emma Gallo, Euro Solari, Nazzareno Re, Carlo Floriani, Angiola Chiesi-Villa, and Corrado Rizzoli pp 5144–5154 DOI: 10.1021/ja9640962 Supporting Info

Spin Delocalization in the Copper(I) Complexes of Bis(verdazyl) Diradicals David J. R. Brook, Vincent Lynch, Brenda Conklin, and Marye Anne Fox pp 5155–5162 DOI: 10.1021/ja961675y Supporting Info

Molecular Architecture via Coordination:  Marriage of Crown Ethers and Calixarenes with Molecular Squares, Unique Tetranuclear Metallamacrocycles from Metallacrown Ether and Metallacalixarene Complexes via Self-Assembly Peter J. Stang, Danh H. Cao, Kuanchiang Chen, Gary M. Gray, David C. Muddiman, and Richard D. Smith pp 5163–5168 DOI: 10.1021/ja9642267

Physical Organic Chemistry of Transition Metal Carbene Complexes. 9.1 Thermodynamic and Kinetic Acidity of (2-Oxacyclopentylidene)pentacarbonylchromium(0) in Aqueous Acetonitrile Claude F. Bernasconi and Aquiles E. Leyes pp 5169–5175 DOI: 10.1021/ja964069b

Identification of the Effective Palladium(0) Catalytic Species Generated in Situ from Mixtures of Pd(dba)2 and Bidentate Phosphine Ligands. Determination of Their Rates and Mechanism in Oxidative Addition Christian Amatore, Gregory Broeker, Anny Jutand, and Fouad Khalil pp 5176–5185 DOI: 10.1021/ja9637098

Ta5+ Displacements in CsTaQ3 (Q = S, Se, and Te):  New One-Dimensional Materials with the BaVS3 Structure Michael A. Pell, Grigori V. M. Vajenine, and James A. Ibers pp 5186–5192 DOI: 10.1021/ja964473a Supporting Info

Protonated Isobutane. A Theoretical ab Initio Study of the Isobutonium Cations Claudio J. A. Mota, Pierre M. Esteves, A. Ramírez-Solís, and R. Hernández-Lamoneda pp 5193–5199 DOI: 10.1021/ja963767t Supporting Info

Disubstituted Boron Cations Cleave Carbonyl Bonds Thilini D. Ranatunga, James M. Kennady, and Hilkka I. Kenttämaa pp 5200–5207 DOI: 10.1021/ja961793l

Self-Assembled n-Alkanethiolate Monolayers on Underpotentially Deposited Adlayers of Silver and Copper on Gold G. Kane Jennings and Paul E. Laibinis pp 5208–5214 DOI: 10.1021/ja962973y Supporting Info

Hydrothermal Conversion of Zeolites:  An in Situ Synchrotron X-ray Powder Diffraction Study P. Norby pp 5215–5221 DOI: 10.1021/ja964245g

Sodium Binding Effects on Conformational Exchange in a Diquinone Calix[4]arene Marielle Gómez-Kaifer, P. A. Reddy, C. David Gutsche, and Luis Echegoyen pp 5222–5229 DOI: 10.1021/ja963601s

Mechanism of Water Exchange for the Di- and Trivalent Metal Hexaaqua Ions of the First Transition Series François P. Rotzinger pp 5230–5238 DOI: 10.1021/ja9635950 Supporting Info

Accounting for Conformational Variability in NMR Structure of Cyclopeptides:  Ensemble Averaging of Interproton Distance and Coupling Constant Restraints Philippe Cuniasse, Isabelle Raynal, Athanosios Yiotakis, and Vincent Dive pp 5239–5248 DOI: 10.1021/ja9636810

Diffusion-Edited NMR−Affinity NMR for Direct Observation of Molecular Interactions Mengfen Lin, Michael J. Shapiro, and James R. Wareing pp 5249–5250 DOI: 10.1021/ja963654+

Direct Dynamics Study of the Stereomutation of Cyclopropane Charles Doubleday, Jr.Kim Bolton and William L. Hase pp 5251–5252 DOI: 10.1021/ja964250k

Investigation of Cyclopropane Stereomutation by Quasiclassical Trajectories on an Analytical Potential Energy Surface David A. Hrovat, Shu Fang, and Weston Thatcher BordenBarry K. Carpenter pp 5253–5254 DOI: 10.1021/ja964238s Supporting Info

A Photochemical Approach to Highlight Backbone Effects in PNA Pascale Clivio, Dominique Guillaume, Marie-Thérèse Adeline, and Jean-Louis Fourrey pp 5255–5256 DOI: 10.1021/ja964251c Supporting Info

First Evidence That the Mechanism of Catalytic Hydrogenation with Homogeneous Palladium and Rhodium Catalysts Is Strongly Influenced by Substrate Polarity Jinquan Yu and Jonathan B. Spencer pp 5257–5258 DOI: 10.1021/ja964179i Supporting Info

XAFS Structural Determination of Np(VII). Evidence for a Trans Dioxo Cation Under Alkaline Solution Conditions David L. Clark, Steven D. Conradson, Mary P. Neu, Phillip D. Palmer, Wolfgang Runde, and C. Drew Tait pp 5259–5260 DOI: 10.1021/ja964053l Supporting Info

The Dynamics of α-Anilino Carboxylate and Related Cation Radical α-Heterolytic Fragmentations Zhuoyi Su, Daniel E. Falvey, Ung Chan Yoon, and Patrick S. Mariano pp 5261–5262 DOI: 10.1021/ja963988z

Observation of the Resonance Raman Spectra of the Semiquinones QA•- and QB•- in Photosynthetic Reaction Centers from Rhodobacter sphaeroides R26 Xiaojie Zhao, Takashi Ogura, Melvin Okamura, and Teizo Kitagawa pp 5263–5264 DOI: 10.1021/ja963550z

Chemical Modification of Cysteine Mutants of Subtilisin Bacillus lentus Can Create Better Catalysts Than the Wild-Type Enzyme Per Berglund, Grace DeSantis, Michele R. Stabile, Xiao Shang, Marvin Gold, Richard R. Bott, Thomas P. Graycar, Tony Hing Lau, Colin Mitchinson, and J. Bryan Jones pp 5265–5266 DOI: 10.1021/ja970344y Supporting Info

Chirality-Memory Molecule:  A D2-Symmetric Fully Substituted Porphyrin as a Conceptually New Chirality Sensor Yoshio Furusho, Takayuki Kimura, Yukitami Mizuno, and Takuzo Aida pp 5267–5268 DOI: 10.1021/ja970431q Supporting Info

Synthesis of Tertiary and Other Sterically Demanding Alkyl and Aryl Complexes of Iridium by Aldehyde C−H Bond Activation Peter J. Alaimo, Bruce A. Arndtsen, and Robert G. Bergman pp 5269–5270 DOI: 10.1021/ja970245k Supporting Info

A Self-Assembled Ionophore with Remarkable Cs+ Selectivity Jeffery T. Davis, Sampath K. Tirumala, and Allison L. Marlow pp 5271–5272 DOI: 10.1021/ja970248x Supporting Info

Blue Light Emitting Nanosized TiO2 Colloids Yanjing Liu and Richard. O. Claus pp 5273–5274 DOI: 10.1021/ja970587q Supporting Info

Antibody Catalysis of BAc2 Aryl Carbamate Ester Hydrolysis:  A Highly Disfavored Chemical Process.  J. Am. Chem. Soc. 1997, 119, 2315−2316 Paul Wentworth, Jr., Anita Datta, Simon Smith, Ann Marshall, Lynda J. Partridge, and G. Michael Blackburn p 5275 DOI: 10.1021/ja975404e

MacMimic for Macintosh and PowerMac, version 3.0, with MM2(91) and MM3(92) Written by Anders Sundin. Instar Software AB, Ideon Research Park, S-223 70 Lund, Sweden. Phone: +46 46 18 24 70. Fax: +46 46 12 80 22. E-mail: anders.sundlin@orgk2.lth.se. Commercial price $1450 for the package. Academic price $600, and an additional $350 to include MM3. Wesley K. M. Chong pp 5275–5276 DOI: 10.1021/ja9659380

Electrochemical Phase Formation and Growth:  An Introduction to the Initial Stages of Metal Deposition By E. Budevski (Bulgarian Academy of Sciences) and G. Staikov and W. J. Lorenz (University of Karlsruhe). VCH:  Weinheim. 1996. xi + 410 pp. DM188.00. ISBN 3-527-29422-8. I. Francis Cheng p 5276 DOI: 10.1021/ja965753t

Applications of LC−MS in Environmental Chemistry. Series:  Journal of Chromatography Library, Vol. 59. Edited by D. Barceló (CID-CSIC). Elsevier:  Amsterdam. 1996. xxii + 543 pp. $281.25. ISBN 0-444-82067-1. Patrick A. Limbach p 5276 DOI: 10.1021/ja965767z

Kirk-Othmer Encyclopedia of Chemical Technology, Volume 20, Power Generation to Recycling, Glass Edited by Jacqueline I. Kroschwitz and Mary Howe-Grant. Wiley:  New York. 1996. xxviii + 1134 pp. $295.00. ISBN 0-471-52689-4. p 5276 DOI: 10.1021/ja965770i

Issue 23

Electric Field Effects on Electron Transfer Rates in Dichromophoric Peptides:  The Effect of Helix Unfolding Marye Anne Fox and Elena Galoppini pp 5277–5285 DOI: 10.1021/ja963269k

Preparative Oxidation of Organic Compounds in Microemulsions with Singlet Oxygen Generated Chemically by the Sodium Molybdate/Hydrogen Peroxide System1 Jean-Marie Aubry and Sabine Bouttemy pp 5286–5294 DOI: 10.1021/ja9644079

Probing the Conformation and Orientation of Adsorbed Protein Using Monoclonal Antibodies:  Cytochrome c3 Films on a Mercury Electrode Kamal L. Egodage, Binodh S. de Silva, and George S. Wilson pp 5295–5301 DOI: 10.1021/ja962824f Supporting Info

A Protein Designed by Binary Patterning of Polar and Nonpolar Amino Acids Displays Native-like Properties Sushmita Roy, Gayathri Ratnaswamy, Judith A. Boice, Robert Fairman, George McLendon, and Michael H. Hecht pp 5302–5306 DOI: 10.1021/ja9700717

Synthesis and Crystal Structure of Some Novel Titanocene Phosphido Compounds by P−H Activation in the Presence of Hydrosilanes Shixuan Xin, Hee Gweon Woo, John F. Harrod, Edmond Samuel, and Anne-Marie Lebuis pp 5307–5313 DOI: 10.1021/ja960657d Supporting Info

Molecular Structure of Free Molecules of the Fullerene C70 from Gas-Phase Electron Diffraction Kenneth Hedberg, Lise Hedberg, Michael Bühl, Donald S. Bethune, C. A. Brown, and Robert D. Johnson pp 5314–5320 DOI: 10.1021/ja970110e Supporting Info

Solution Structures of FcεRI α-Chain Mimics:  A β-Hairpin Peptide and Its Retroenantiomer James M. McDonnell, David Fushman, Sean M. Cahill, Brian J. Sutton, and David Cowburn pp 5321–5328 DOI: 10.1021/ja963884o Supporting Info

Spectroscopic and Electrochemical Evidence for Significant Electronic Coupling in Mixed-Valence Hydrogen-Bonded Adducts of Ruthenium Cyano and Ethylenediamine Complexes Jie Yang, Dhehinie Seneviratne, Gene Arbatin, Ann Margret Andersson, and Jeff C. Curtis pp 5329–5336 DOI: 10.1021/ja962391g

Antioxidant Potential of Theaflavins. A Pulse Radiolysis Study Slobodan V. Jovanovic, Yukihiko Hara, Steen Steenken, and Michael G. Simic pp 5337–5343 DOI: 10.1021/ja970120f

Electric Field Assisted Photodegradation of Spatially Confined Poly(p-phenylenevinylene) M. Iltaf Khan, Michelle L. Renak, Guillermo C. Bazan, and Zoran Popovic pp 5344–5347 DOI: 10.1021/ja964082w

Intramolecular Long-Distance Electron Transfer and Triplet Energy Transfer. Photophysical and Photochemical Studies on a Norbornadiene−Steroid−Benzidine System Chen-Ho Tung, Li-Ping Zhang, Yi Li, Hong Cao, and Yoshifumi Tanimoto pp 5348–5354 DOI: 10.1021/ja9619925 Supporting Info

Through-Bond Orbital Coupling, the Parity Rule, and the Design of “Superbridges” Which Exhibit Greatly Enhanced Electronic Coupling:  A Natural Bond Orbital Analysis Michael N. Paddon-Row and Michael J. Shephard pp 5355–5365 DOI: 10.1021/ja964132x Supporting Info

Electron-Donating and -Accepting Strength of Enoxysilanes and Allylsilanes in the Reaction with Aldehydes Kiyoyuki Omoto and Hiroshi Fujimoto pp 5366–5372 DOI: 10.1021/ja963677o

An Energetically Feasible Mechanism for the Activation of the C−H Bond by the 16-Electron CpM(PH3)(CH3)+ (M = Rh, Ir) Complex. A Theoretical Study Ming-Der Su and San-Yan Chu pp 5373–5383 DOI: 10.1021/ja961847r Supporting Info

Conformational Heterogeneity of Arylamine-Modified DNA:  19F NMR Evidence Li Zhou, Masoumeh Rajabzadeh, Daniel D. Traficante, and Bongsup P. Cho pp 5384–5389 DOI: 10.1021/ja9632771 Supporting Info

A 6Li−13C REDOR Study of the TMEDA Complex of Solid Fluorenyllithium Per-Ola Quist, Hans Förster, and Dan Johnels pp 5390–5397 DOI: 10.1021/ja963726x

High-Spin Cation Radicals of Methylenephosphoranes Martijn M. Wienk and René A. J. Janssen pp 5398–5403 DOI: 10.1021/ja964185e

Solid-State NMR and Diffraction Studies of a Tunable p-tert-Butylcalix[4]arene·Guest Structure E. B. Brouwer, G. D. Enright, and J. A. Ripmeester pp 5404–5412 DOI: 10.1021/ja9637762 Supporting Info

An Extended β-Strand Mimic for a Larger Artificial β-Sheet James S. Nowick, Mason Pairish, In Quen Lee, Darren L. Holmes, and Joseph W. Ziller pp 5413–5424 DOI: 10.1021/ja963843s Supporting Info

1H-Detected Multinuclear NMR Experiments for the Measurement of Small Heteronuclear Coupling Constants in Transition Metal Complexes Gottfried Otting, Barbara A. Messerle, and Linnea P. Soler pp 5425–5434 DOI: 10.1021/ja963346b

Identification of the True Product of the Urate Oxidase Reaction Kalju Kahn, Peter Serfozo, and Peter A. Tipton pp 5435–5442 DOI: 10.1021/ja970375t Supporting Info

Synthesis and Reactivity of a Metallapyrylium1 John R. Bleeke and Jonathan M. B. Blanchard pp 5443–5444 DOI: 10.1021/ja970779l Supporting Info

Novel Structural Modifications Associated with the Highly Efficient Internal Conversion of 2-(2‘-Hydroxyphenyl)benzotriazole Ultraviolet Stabilizers Carlos M. Estévez, Robert D. Bach, K. C. Hass, and W. F. Schneider pp 5445–5446 DOI: 10.1021/ja964056y Supporting Info

Synthesis, Structure, and Biological Activity of a New Insulinomimetic Peroxovanadium Compound:  Bisperoxovanadium Imidazole Monoanion Debbie C. Crans, Anastasios D. Keramidas, Helana Hoover-Litty, Oren P. Anderson, Mary M. Miller, Lynn M. Lemoine, Susan Pleasic-Williams, Mark Vandenberg, Anthony J. Rossomando, and Laurel J. Sweet pp 5447–5448 DOI: 10.1021/ja9701671 Supporting Info

Porphyrin Amphiphiles as Templates for the Nucleation of Calcium Carbonate Joydeep Lahiri, Guofeng Xu, Daniel M. Dabbs, Nan Yao, Ilhan A. Aksay, and John T. Groves pp 5449–5450 DOI: 10.1021/ja961486f

Bispyrenyl Excimer Fluorescence:  A Sensitive Oligonucleotide Probe Frederick D. Lewis, Yifan Zhang, and Robert L. Letsinger pp 5451–5452 DOI: 10.1021/ja9641214

Aromatic Residues May Enhance Intramolecular Electron Transfer in Azurin Ole Farver, Lars K. Skov, Simon Young, Nicklas Bonander, B. Göran Karlsson, Tore Vänngård, and Israel Pecht pp 5453–5454 DOI: 10.1021/ja964386i

Morphological Control of Nanocrystalline Aluminum Nitride:  Aluminum Chloride-Assisted Nanowhisker Growth Joel A. Haber, Patrick C. Gibbons, and William E. Buhro pp 5455–5456 DOI: 10.1021/ja963368y Supporting Info

Addition of Zincated Hydrazone to Vinyl Grignard Reagent. Ketone Synthesis by One-Pot Assembly of Four Components Eiichi Nakamura, Katsumi Kubota, and Go Sakata pp 5457–5458 DOI: 10.1021/ja9706357 Supporting Info

Manganese Ate Complexes as New Reducing Agents:  Perfectly Regiocontrolled Generation and Reactions of the Manganese Enolates with Electrophiles Makoto Hojo, Hajime Harada, Hajime Ito, and Akira Hosomi pp 5459–5460 DOI: 10.1021/ja964054d Supporting Info

Synthesis, Solution and Solid State Structures, and Aqueous Chemistry of an Unstable Polyperoxo Polyoxometalate:  [P2W12(NbO2)6O56]12- Deborah A. Judd, Qin Chen, Charles F. Campana, and Craig L. Hill pp 5461–5462 DOI: 10.1021/ja970329t Supporting Info

Synthesis and Structure of [(12C4)2Cd][Cd2(SCN)6]. Formation of a Novel Tetragonal Net of Anionic Layered Structure of [Cd2(SCN)62-]∞ Templated by the Square-Shaped Sandwich [(12C4)2Cd]2+ Cation Hong Zhang, Ximin Wang, H. Zhu, W. Xiao, and Boon K. Teo pp 5463–5464 DOI: 10.1021/ja970264u Supporting Info

Radical Carboxylation:  Ester Synthesis from Alkyl Iodides, Carbon Monoxide, and Alcohols under Irradiation Conditions Kiyoto Nagahara, Ilhyong Ryu, Mitsuo Komatsu, and Noboru Sonoda pp 5465–5466 DOI: 10.1021/ja964124g Supporting Info

Palladium-Catalyzed Functionalization of Lactones via Their Cyclic Ketene Acetal Phosphates. Efficient New Synthetic Technology for the Construction of Medium and Large Cyclic Ethers K. C. Nicolaou, G.-Q. Shi, J. L. Gunzner, P. Gärtner, and Z. Yang pp 5467–5468 DOI: 10.1021/ja970619+ Supporting Info

13C NMR Study of the Carbonylation of Benzene with CO in Sulfated Zirconia T. H. Clingenpeel, T. E. Wessel, and A. I. Biaglow pp 5469–5470 DOI: 10.1021/ja970824p

How Short is a -GaGa- Triple Bond? Synthesis and Molecular Structure of Na2[Mes*2C6H3-GaGa-C6H3Mes*2] (Mes* = 2,4,6-i-Pr3C6H2):  The First Gallyne Jianrui Su, Xiao-Wang Li, R. Chad Crittendon, and Gregory H. Robinson pp 5471–5472 DOI: 10.1021/ja9700562 Supporting Info

A Fundamental Assumption about OH- Attack in Phosphate Ester Hydrolysis Is Not Fully Justified Jan Florián and Arieh Warshel pp 5473–5474 DOI: 10.1021/ja964270m

NMR-Based Model of an Ecteinascidin 743−DNA Adduct Bob M. Moore, II, Frederick C. Seaman, and Laurence H. Hurley pp 5475–5476 DOI: 10.1021/ja9704500 Supporting Info

Mechanism of Phosphatidylinositol−Phospholipase C. 2. Reversal of a Thio Effect by Site-Directed Mutagenesis1 Robert J. Hondal, Karol S. Bruzik, Zhong Zhao, and Ming-Daw Tsai pp 5477–5478 DOI: 10.1021/ja964217y

Synthesis of [15N,15N‘]-N,N,N‘,N‘-Tetramethyl- ethylenediamine and Its Use in Solvation Studies of [6Li]-n-Butyllithium Delia Waldmüller, Barbara J. Kotsatos, Michael A. Nichols, and Paul G. Williard pp 5479–5480 DOI: 10.1021/ja970557n Supporting Info

Issue 24

Novel Peptide Dissociation:  Gas-Phase Intramolecular Rearrangement of Internal Amino Acid Residues Richard W. Vachet, Barney M. Bishop, Bruce W. Erickson, and Gary L. Glish pp 5481–5488 DOI: 10.1021/ja9640758

Substrate Docking Algorithms and Prediction of the Substrate Specificity of Cytochrome P450cam and Its L244A Mutant James J. De Voss, Ole Sibbesen, Zhoupeng Zhang, and Paul R. Ortiz de Montellano pp 5489–5498 DOI: 10.1021/ja970349v

5-Substituted 2-Aminopyridine C-Nucleosides as Protonated Cytidine Equivalents:  Increasing Efficiency and Selectivity in DNA Triple-Helix Formation Stefan Hildbrand, Adrian Blaser, Serge P. Parel, and Christian J. Leumann pp 5499–5511 DOI: 10.1021/ja9704904 Supporting Info

Stereocontrolled Synthesis of a Nonracemic Vitamin B12 A−B-Semicorrin Johann Mulzer, Benjamin List, and Jan W. Bats pp 5512–5518 DOI: 10.1021/ja9700515 Supporting Info

A Novel Approach to the Study of Solution Structures and Dynamic Behavior of Paclitaxel and Docetaxel Using Fluorine-Containing Analogs as Probes Iwao Ojima, Scott D. Kuduk, Subrata Chakravarty, Michèle Ourevitch, and Jean-Pierre Bégué pp 5519–5527 DOI: 10.1021/ja9633777 Supporting Info

Polynuclear Metal Hydrido Alkoxides. 2. Hydrogenation of 1,2-W2(iBu)2(OiPr)4. Preparation, Characterization, and Some Reactions of W6H5(CiPr)(OiPr)12, W2(H)2(OiPr)4(dmpe)2, and W4(H)4(dmpm)3, Where dmpe = Bis(dimethylphosphino)ethane and dmpm = Bis(dimethylphosphino)methane Malcolm H. Chisholm, Kirsten Folting, Keith S. Kramer, and William E. Streib pp 5528–5539 DOI: 10.1021/ja9643634 Supporting Info

Synthetic Transmembrane Channels:  Functional Characterization Using Solubility Calculations, Transport Studies, and Substituent Effects Oscar Murillo, Iwao Suzuki, Ernesto Abel, Clare L. Murray, Eric S. Meadows, Takashi Jin, and George W. Gokel pp 5540–5549 DOI: 10.1021/ja962694a

Solvent Effect on Product Distribution in Photochemical Pathways of α C−N versus β C−C Cleavage of n,π* Triplet-Excited Azoalkanes Waldemar Adam, Jarugu N. Moorthy, Werner M. Nau, and J. C. Scaiano pp 5550–5555 DOI: 10.1021/ja963948v Supporting Info

Photochromism of 4‘-Methoxyflavylium Perchlorate. A “Write−Lock−Read−Unlock−Erase” Molecular Switching System Fernando Pina, Maria João Melo, Mauro Maestri, Roberto Ballardini, and Vincenzo Balzani pp 5556–5561 DOI: 10.1021/ja9704646

Intramolecular Aglycon Delivery on Polymer Support:  Gatekeeper Monitored Glycosylation Yukishige Ito and Tomoya Ogawa pp 5562–5566 DOI: 10.1021/ja964093p Supporting Info

Lithium Diisopropylamide Solvated by Monodentate and Bidentate Ligands:  Solution Structures and Ligand Binding Constants Julius F. Remenar, Brett L. Lucht, and David B. Collum pp 5567–5572 DOI: 10.1021/ja970029b Supporting Info

Chelation-Based Stabilization of the Transition Structure in a Lithium Diisopropylamide Mediated Dehydrobromination:  Avoiding the “Universal Ground State” Assumption Julius F. Remenar and David B. Collum pp 5573–5582 DOI: 10.1021/ja970030a Supporting Info

Physical Organic Chemistry of Transition Metal Carbene Complexes. 10.1 Opposing Effects of α-Alkyl Groups on the Thermodynamic and Kinetic Acidities of (CO)5CrC(OMe)CHR‘R‘‘-Type Fischer Carbene Complexes in Aqueous Acetonitrile. Analogy to the Nitroalkane Anomaly Claude F. Bernasconi, Weitao Sun, Luis Garcia-Río, Kin Yan, and Kevin Kittredge pp 5583–5590 DOI: 10.1021/ja970193z Supporting Info

Synthetic and Mechanistic Studies on the Azabicyclo[7.3.1]enediyne Core and Naphtho[2,3-h]quinoline Portions of Dynemicin A Philip Magnus, Shane A. Eisenbeis, Robin A. Fairhurst, Theodore Iliadis, Nicholas A. Magnus, and David Parry pp 5591–5605 DOI: 10.1021/ja970435v Supporting Info

Steric Control of Directional Isomerism in Dicopper(I) Helicates of Asymmetrically Substituted 2,2‘:6‘,2‘‘:2‘‘,6‘‘‘-Quaterpyridine Derivatives E. C. Constable, F. Heirtzler, M. Neuburger, and M. Zehnder pp 5606–5617 DOI: 10.1021/ja9623626 Supporting Info

Kinetics of Diosmacyclobutane Exchange Reactions David L. Ramage, Dawn C. Wiser, and Jack R. Norton pp 5618–5627 DOI: 10.1021/ja963532h Supporting Info

Evidence for a Ring-Opening Preequilibrium in the Exchange Reactions of Diosmacyclobutanes Bruce R. Bender, David L. Ramage, Jack R. Norton, Dawn C. Wiser, and Anthony K. Rappé pp 5628–5637 DOI: 10.1021/ja963533+ Supporting Info

Cobalt(III) Polyamine Complexes as Catalysts for the Hydrolysis of Phosphate Esters and of DNA. A Measurable 10 Million-Fold Rate Increase1 Ronald Hettich and Hans-Jörg Schneider pp 5638–5647 DOI: 10.1021/ja964319o Supporting Info

Unidentate and Bidentate Binding of Nickel(II) Complexes to an Fe4S4 Cluster via Bridging Thiolates:  Synthesis, Crystal Structures, and Electrochemical Properties of Model Compounds for the Active Sites of Nickel Containing CO Dehydrogenase/Acetyl-CoA Synthase Frank Osterloh, Wolfgang Saak, and Siegfried Pohl pp 5648–5656 DOI: 10.1021/ja970194r Supporting Info

Pseudosystematic Conformational Search. Application to Cycloheptadecane J. Thomas Ngo and Martin Karplus pp 5657–5667 DOI: 10.1021/ja961132o Supporting Info

The Chemical Vapor Deposition of Aluminum Nitride:  Unusual Cluster Formation in the Gas Phase Alexey Y. Timoshkin, Holger F. Bettinger, and Henry F. Schaefer, III pp 5668–5678 DOI: 10.1021/ja964163s Supporting Info

Orientations of [Fe(H2O)6]2+ and [Fe(H2O)6]3+ Complexes at a Reactive Separation in Water C. Satheesan Babu, M. Madhusoodanan, G. Sridhar, and Bhalachandra L. Tembe pp 5679–5681 DOI: 10.1021/ja970915m

Hydrogen Migration vs Carbon Migration in Dialkylcarbenes. A Study of the Preferred Product in the Carbene Rearrangements of Ethylmethylcarbene, Cyclobutylidene, 2-Norbornylidene, and 2-Bicyclo[2.1.1]hexylidene Horst M. Sulzbach, Matthew S. Platz, Henry F. Schaefer III, and Christopher M. Hadad pp 5682–5689 DOI: 10.1021/ja970181d Supporting Info

Structural Fluctuations, Spin, Reorganization Energy, and Tunneling Energy Control of Intramolecular Electron Transfer:  The Surprising Case of Electron Transfer in a d8−d8 Bimetallic System I. V. Kurnikov, L. D. Zusman, M. G. Kurnikova, R. S. Farid, and D. N. Beratan pp 5690–5700 DOI: 10.1021/ja970309r

Determination of Absolute Configurations of N-Formyl-3,3‘,4,4‘-tetrahydrospiro[naphthalene-1(2H),2‘(1‘H)-pyridine] (2) and N-Formyl-3‘,4‘-dihydrospiro[indan-1,2‘(1‘H)-pyridine] (3) by Analysis of Circular Dichroism Spectra. A Case of Two Compounds with Similar Configuration But Nearly Mirror Image CD Spectra Lena Ripa, Anders Hallberg, and Jan Sandström pp 5701–5705 DOI: 10.1021/ja9635995

NMR Studies of the Reversible Dimerization and Guest Exchange Processes of Tetra Urea Calix[4]arenes Using a Derivative with Lower Symmetry Oliver Mogck, Miquel Pons, Volker Böhmer, and Walter Vogt pp 5706–5712 DOI: 10.1021/ja970078o

Ab Initio Studies of the Ring-Opening Reaction of the Cyclobutene Radical Cation Olaf Wiest pp 5713–5719 DOI: 10.1021/ja964334t Supporting Info

Simultaneous Control of Surface Potential and Wetting of Solids with Chemisorbed Multifunctional Ligands Merlin Bruening, Rami Cohen, Jean François Guillemoles, Tamar Moav, Jacqueline Libman, Abraham Shanzer, and David Cahen pp 5720–5728 DOI: 10.1021/ja964434z Supporting Info

Fluorescence of the 1,4-Benzoquinone Radical Anion Andrew R. Cook, Larry A. Curtiss, and John R. Miller pp 5729–5734 DOI: 10.1021/ja970270q

Radical-Induced Oxidation of Dithiothreitol in Acidic Oxygenated Aqueous Solution:  A Chain Reaction Manohar Lal, Raghavendra Rao, Xingwang Fang, Heinz-Peter Schuchmann, and Clemens von Sonntag pp 5735–5739 DOI: 10.1021/ja970744l

Remarkable Heteroatom Dependence of the Spin Multiplicity in the Ground State of 9,9‘-(m-Phenylene)dixanthyl and -dithioxanthyl Diradicals Keiji Okada, Takaaki Imakura, Masaji Oda, Atsushi Kajiwara, Mikiharu Kamachi, and Masakazu Yamaguchi pp 5740–5741 DOI: 10.1021/ja9635084

A Designed Buried Salt Bridge in a Heterodimeric Coiled Coil Joel P. Schneider, James D. Lear, and William F. DeGrado pp 5742–5743 DOI: 10.1021/ja970493g Supporting Info

Electron Transfer from C76 (C2v‘) and C78 (D2) to Radical Cations of Various Arenes:  Evidence for the Marcus Inverted Region Dirk M. Guldi and Klaus-Dieter Asmus pp 5744–5745 DOI: 10.1021/ja970397f

Gene-Specific Transcription Inhibitors. Pentanucleotides Complementary to the Template Strand of Transcription Start Sites David M. Perrin, C.-h. B. Chen, Yue Xu, Lori Pearson, and David S. Sigman pp 5746–5747 DOI: 10.1021/ja9634435

Design, Synthesis, and Evaluation of the First Mechanism-Based Inhibitor of Glucosamine 6-Phosphate Synthase Frédéric Massière, Marie-Ange Badet-Denisot, Loïc René, and Bernard Badet pp 5748–5749 DOI: 10.1021/ja970254t

Cis Addition of Hydrogen Chloride to an Amphiphilic Carbene Complex Charles P. Casey, Curtis J. Czerwinski, Douglas R. Powell, and Randy K. Hayashi pp 5750–5751 DOI: 10.1021/ja970354z Supporting Info

Structures and Catalytic Activities of Carboxylate-Bridged Dinickel(II) Complexes as Models for the Metal Center of Urease Kazuya Yamaguchi, Shouzou Koshino, Fumio Akagi, Masatatsu Suzuki, Akira Uehara, and Shinnichiro Suzuki pp 5752–5753 DOI: 10.1021/ja963982+ Supporting Info

Fluorine-Assisted Selective Alkylation to Fluorinated Epoxides and Carbonyl Compounds:  Implication of Pentacoordinate Trialkylaluminum Complexes Takashi Ooi, Naoko Kagoshima, and Keiji Maruoka pp 5754–5755 DOI: 10.1021/ja964113n Supporting Info

Localization of Divalent Metal Ions in the Minor Groove of DNA A-Tracts Nicholas V. Hud and Juli Feigon pp 5756–5757 DOI: 10.1021/ja9704085

Chemoenzymatic Synthesis of 11-cis-Retinal Photoaffinity Analog by Use of Squid Retinochrome Babak Borhan, Roxanne Kunz, Andrew Y. Wang, and Koji NakanishiNina Bojkova and Kazuo Yoshihara pp 5758–5759 DOI: 10.1021/ja970956i

Multisite Inclusion Complexation of Redox Active Dendrimer Guests René Castro, Isabel Cuadrado, Beatriz Alonso, Carmen M. Casado, Moisés Morán, and Angel E. Kaifer pp 5760–5761 DOI: 10.1021/ja970922a Supporting Info

Chemical Structure of Blepharismin, the Photosensor Pigment for Blepharisma japonicum Giovanni Checcucci, Richard S. Shoemaker, Elisabetta Bini, Ronald Cerny, Nengbing Tao, Jae-Seok Hyon, Domenico Gioffre, Francesco Ghetti, Francesco Lenci, and Pill-Soon Song pp 5762–5763 DOI: 10.1021/ja970713q Supporting Info

Antioxidant Activity of Vitamin E Determined in a Phospholipid Membrane by Product Studies:  Avoiding Chain Transfer Reactions by Vitamin E Radicals L. Ross C. Barclay, Melinda R. Vinqvist, Fernando Antunes, and Ruy E. Pinto pp 5764–5765 DOI: 10.1021/ja9705856

Crystallographic Characterization of the Molecular Structure and Solid State Packing of the Fullerene-Shaped Hydrocarbon C36H12 David M. Forkey, Saeed Attar, Bruce C. Noll, Richard Koerner, Marilyn M. Olmstead, and Alan L. Balch pp 5766–5767 DOI: 10.1021/ja970845j Supporting Info

Magnetic Field Dependence of Electron Transfer and the Role of Electron Spin in Heme Enzymes:  Horseradish Peroxidase Marc B. Taraban and Tatyana V. LeshinaMark A. Anderson and Charles B. Grissom pp 5768–5769 DOI: 10.1021/ja9630248 Supporting Info

Perspectives in Supramolecular Chemistry, Volume 1. The Lock and Key Principle. The State of the Art100 Years on Edited by Jean-Paul Behr (Université Louis Pasteur de Strasbourg). John Wiley & Sons:  Chichester. ix + 325 pp. ISBN 0-471-93902-1. A. S. Borovik p 5770 DOI: 10.1021/ja955156r

The Effect of a Peptide Helix Macrodipole on the pKa of an Asp Side Chain Carboxylate J. Am. Chem. Soc. 1996, 118, 12038−12044 Hemant V. Joshi and Mark S. Meier p 5770 DOI: 10.1021/ja9754057

Gas Chromatography and Mass SpectrometryA Practical Guide By Fulton G. Kitson, Barbara S. Larsen, and Charles N. McEwen (E.I. du Pont de Nemours & Co., Wilmington, DE). Academic Press Inc.:  San Diego. 1996. xii + 381 pp. $49.95. ISBN 0-12-483385-3. J. Stuart Grossert pp 5770–5771 DOI: 10.1021/ja9657465

Infrared Spectroscopy of Biomolecules Edited by Henry H. Mantsch (Institute of Biodiagnostics) and Dennis Chapman (Royal Free Hospital). Wiley-Liss:  New York. 1996. xi + 359 pp. $89.95. ISBN 0-471-02184-9. Keith Carron p 5771 DOI: 10.1021/ja965636y

Modern Techniques in Electroanalysis. Series:  Chemical Analysis, Vol. 139 Edited by Petr Vanýsek (Northern Illinois University). Wiley:  New York. 1996. xvii + 369 pp. $79.95. ISBN 0-471-55514-2. Louis A. Coury, Jr. p 5771 DOI: 10.1021/ja965757y

Advances in Inorganic Chemistry, Volume 42 Edited by A. G. Sykes (The University Newcastle-upon-Tyne). Academic Press:  San Diego. 1995. vii + 408 pp. $99.00. ISBN 0-12-023642-7. Patrick Farmer pp 5771–5772 DOI: 10.1021/ja965566v

Indoles. Series. Best Synthetic Methods By Richard J. Sundberg (University of Virginia). Academic Press:  San Diego. 1996. xv + 175 pp. $45.00. ISBN-0-12-67645-1. Daniel M. Ketcha p 5772 DOI: 10.1021/ja9657622

Issue 25

Application of a Stereospecific Intramolecular Allenylsilane Imino Ene Reaction to Enantioselective Total Synthesis of the 5,11-Methanomorphanthridine Class of Amaryllidaceae Alkaloids Jian Jin and Steven M. Weinreb pp 5773–5784 DOI: 10.1021/ja970839n Supporting Info

Catalytic Activity of the N-Terminal Domain of Escherichia coli Asparagine Synthetase B Can Be Reengineered by Single-Point Mutation Susan K. Boehlein, José G. Rosa-Rodriguez, Sheldon M. Schuster, and Nigel G. J. Richards pp 5785–5791 DOI: 10.1021/ja9613668

Design and Synthesis of 2‘-Deoxy-2‘-Fluorodisaccharides as Mechanism-Based Glycosidase Inhibitors That Exploit Aglycon Specificity John D. McCarter, Wai Yeung, Jack Chow, David Dolphin, and Stephen G. Withers pp 5792–5797 DOI: 10.1021/ja9627454

DNA Binding Properties of 2,7-Diazapyrene and Its N-Methylated Cations Studied by Linear and Circular Dichroism Spectroscopy and Calorimetry Hans-Christian Becker and Bengt Nordén pp 5798–5803 DOI: 10.1021/ja963919k Supporting Info

Catalytic Palladium-Mediated Bisdiene Carbocyclizations:  Bisdiene to Enediene Cycloisomerizations James M. Takacs, Francis Clement, Jingyang Zhu, Sithamalli V. Chandramouli, and Xiaoping Gong pp 5804–5817 DOI: 10.1021/ja962748g Supporting Info

Discovery of Potent Nonpeptide Inhibitors of Stromelysin Using SAR by NMR P. J. Hajduk, G. Sheppard, D. G. Nettesheim, E. T. Olejniczak, S. B. Shuker, R. P. Meadows, D. H. Steinman, G. M. Carrera, Jr., P. A. Marcotte, J. Severin, K. Walter, H. Smith, E. Gubbins, R. Simmer, T. F. Holzman, D. W. Morgan, S. K. Davidsen, J. B. Summers, and S. W. Fesik pp 5818–5827 DOI: 10.1021/ja9702778

Stromelysin Inhibitors Designed from Weakly Bound Fragments:  Effects of Linking and Cooperativity E. T. Olejniczak, P. J. Hajduk, P. A. Marcotte, D. G. Nettesheim, R. P. Meadows, R. Edalji, T. F. Holzman, and Stephen W. Fesik pp 5828–5832 DOI: 10.1021/ja9702780

Solution Conformations of Potent Bicyclic Antagonists of Oxytocin by Nuclear Magnetic Resonance Spectroscopy and Molecular Dynamics Simulations Mark D. Shenderovich, Katalin E. Kövér, Susanne Wilke, Nathan Collins, and Victor J. Hruby pp 5833–5846 DOI: 10.1021/ja963736y Supporting Info

Structures, Automerizations, and Isomerizations of C3H2 Isomers Randal A. Seburg, Eric V. Patterson, John F. Stanton, and Robert J. McMahon pp 5847–5856 DOI: 10.1021/ja9638869 Supporting Info

2-Vinylmethylenecyclopropane/3-Methylenecyclopentene Rearrangement:  Matrix-Infrared Spectroscopic Identification of 4-Methylene-2-pentene-1,5-diyl (1,2‘-Bisallyl Diradical) Günther Maier and Stefan Senger pp 5857–5861 DOI: 10.1021/ja970300p

Self-Threading-Based Approach for Branched and/or Cross-linked Poly(methacrylate rotaxane)s Caiguo Gong and Harry W. Gibson pp 5862–5866 DOI: 10.1021/ja970673q

Dynamics of CO Binding to Lacunar Iron(II) Cyclidene Complexes Maria Buchalova, P. Richard Warburton, Rudi van Eldik, and Daryle H. Busch pp 5867–5876 DOI: 10.1021/ja9625539

γ-Al2O3-Supported Re−Pt Cluster Catalyst Prepared from [Re2Pt(CO)12]:  Characterization by Extended X-ray Absorption Fine Structure Spectroscopy and Catalysis of Methylcyclohexane Dehydrogenation A. S. Fung, M. J. Kelley, D. C. Koningsberger, and B. C. Gates pp 5877–5887 DOI: 10.1021/ja962816z Supporting Info

From Monomers to π-Stacks. A Comprehensive Study of the Structure and Properties of Monomeric, π-Dimerized, and π-Stacked Forms of the Cation Radical of 3‘,4‘-Dibutyl-2,5‘‘-diphenyl-2,2‘:5‘,2‘‘-terthiophene David D. Graf, Robert G. Duan, John P. Campbell, Larry L. Miller, and Kent R. Mann pp 5888–5899 DOI: 10.1021/ja964345m Supporting Info

Estimation of Self-Exchange Electron Transfer Rate Constants for Organic Compounds from Stopped-Flow Studies Stephen F. Nelsen, Michael T. Ramm, Rustem F. Ismagilov, Mark A. Nagy, Dwight A. Trieber, II, Douglas R. Powell, Xi Chen, Jamie J. Gengler, Qinling Qu, Jennifer L. Brandt, and Jack R. Pladziewicz pp 5900–5907 DOI: 10.1021/ja970321j Supporting Info

Accurate ab Initio Quantum Chemical Determination of the Relative Energetics of Peptide Conformations and Assessment of Empirical Force Fields Michael D. Beachy, David Chasman, Robert B. Murphy, Thomas A. Halgren, and Richard A. Friesner pp 5908–5920 DOI: 10.1021/ja962310g Supporting Info

Annelated Semibullvalenes:  A Theoretical Study of How They “Cope” with Strain Haijun Jiao, Ruby Nagelkerke, Henry A. Kurtz, Richard Vaughan Williams, Weston Thatcher Borden, and Paul von Ragué Schleyer pp 5921–5929 DOI: 10.1021/ja963165+ Supporting Info

Why Are Methylenecyclopropane and 1-Methylcylopropene More “Strained” than Methylcyclopropane? William T. G. Johnson and Weston Thatcher Borden pp 5930–5933 DOI: 10.1021/ja9638061

Molecular Dynamics Simulations of DNA with Protein's Consistent GROMOS Force Field and the Role of Counterions' Symmetry O. Tapia and I. Velázquez pp 5934–5938 DOI: 10.1021/ja9641665

A Density Functional Study of β-Hydride and Methyl Migratory Insertion in CpM(PH3)(CH2CH2)R+ (M = Co, Rh, Ir; R = H, CH3) Yunzhu Han, Liqun Deng, and Tom Ziegler pp 5939–5945 DOI: 10.1021/ja9700156 Supporting Info

Limiting Ionic Conductance of Symmetrical, Rigid Ions in Aqueous Solutions:  Temperature Dependence and Solvent Isotope Effects Ranjit Biswas and Biman Bagchi pp 5946–5953 DOI: 10.1021/ja970118o

Preparation of Decachlorocorannulene and Other Perchlorinated Fragments of Fullerenes by Electrical Discharge in Liquid Chloroform Rongbin Huang, Weijie Huang, Yuhuang Wang, Zichao Tang, and Lansun Zheng pp 5954–5955 DOI: 10.1021/ja970238w

On the Nature of the Catalytic Palladium-Mediated Elimination of Allylic Carbonates and Acetates To Form 1,3-Dienes James M. Takacs, Edward C. Lawson, and Francis Clement pp 5956–5957 DOI: 10.1021/ja962313t Supporting Info

A Simple Method to Distinguish Intermonomer Nuclear Overhauser Effects in Homodimeric Proteins with C2 Symmetry Kylie J. Walters, Hiroshi Matsuo, and Gerhard Wagner pp 5958–5959 DOI: 10.1021/ja963309k

Solid-Phase Synthesis of Oligonucleotides Containing a Site-Specific Psoralen Derivative William R. Kobertz and John M. Essigmann pp 5960–5961 DOI: 10.1021/ja9703178 Supporting Info

On the Effect of a Cation Binding Site in an Asymmetric Ligand for a Catalyzed Nucleophilic Substitution Reaction Barry M. Trost and Rumen Radinov pp 5962–5963 DOI: 10.1021/ja9706864 Supporting Info

Stereospecific Alkane Hydroxylation with H2O2 Catalyzed by an Iron(II)−Tris(2-pyridylmethyl)amine Complex Cheal Kim, Kui Chen, Jinheung Kim, and Lawrence Que, Jr. pp 5964–5965 DOI: 10.1021/ja9642572

Isolation, Stereochemistry, and Configurational Lability of Optically Active Telluroxides Toshio Shimizu, Yuko Yamazaki, Hideo Taka, and Nobumasa Kamigata pp 5966–5967 DOI: 10.1021/ja970760i

Characterization of the First Covalent Adduct between Artemisinin and a Heme Model Anne Robert and Bernard Meunier pp 5968–5969 DOI: 10.1021/ja970412g

Excellent Z-Selective Olefin Formation Using Pentacoordinate Spirophosphoranes and Aldehydes. Wittig Type Reaction via Hexacoordinate Intermediates Satoshi Kojima, Ryukichi Takagi, and Kin-ya Akiba pp 5970–5971 DOI: 10.1021/ja964122w Supporting Info

Photosensitized Near Infrared Luminescence of Ytterbium(III) in Proteins and Complexes Occurs via an Internal Redox Process William D. Horrocks, Jr., James P. Bolender, Wendy D. Smith, and Ronald M. Supkowski pp 5972–5973 DOI: 10.1021/ja964421l

Novel Photocoupling Reaction in Two-Component Crystals of Tetracyanobenzene with Benzyl Cyanide Yoshikatsu Ito and Sotaro EndoShigeru Ohba pp 5974–5975 DOI: 10.1021/ja964451o Supporting Info

Differential Iron(II) Affinity of the Sites of the Diiron Cluster in Protein R2 of Escherichia coli Ribonucleotide Reductase:  Tracking the Individual Sites through the O2 Activation Sequence J. Martin Bollinger, Jr., Shuxian Chen, Sara E. Parkin, Lara M. Mangravite, Brenda A. Ley, Dale E. Edmondson, and Boi Hahn Huynh pp 5976–5977 DOI: 10.1021/ja970319s

Femtosecond Elimination Reaction Dynamics D. Zhong, S. Ahmad, and A. H. Zewail pp 5978–5979 DOI: 10.1021/ja9710013

Novel Alkoxo- and Aryloxotitanium Carbonyls. Structural Characterization of [Ti(CO)4(μ-OPh)]22- 1 Paul J. Fischer, Pong Yuen, Victor G. Young, Jr., and John E. Ellis pp 5980–5981 DOI: 10.1021/ja970926f Supporting Info

Free Radical-Mediated Ketone Synthesis from Alkyl Iodides via Sequential Radical Acylation Approach Sunggak Kim and Joo-Yong Yoon pp 5982–5983 DOI: 10.1021/ja9710316 Supporting Info

Kinetics of the Termolecular Insertion Reaction of Ground State Rhodium with Methane Mark L. Campbell pp 5984–5985 DOI: 10.1021/ja9708169

Oxidation of a Vanadium(V)−Dithiolate Complex to a Vanadium(V)−η2,η2-Disulfenate Complex Charles R. Cornman, Thad C. Stauffer, and Paul D. Boyle pp 5986–5987 DOI: 10.1021/ja971007s Supporting Info

Selective Fluoroalkylation of Cyclopentadienyl and Ethylene Ligands in Reactions of Perfluoroalkyl Iodides with Low-Valent Complexes of Molybdenum and Tungsten:  Evidence for a Fluorocarbanion Mechanism Russell P. Hughes and Susan M. MaddockArnold L. Rheingold and Louise M. Liable-Sands pp 5988–5989 DOI: 10.1021/ja970452k Supporting Info

PSI-Plot Version 4.52 for Windows/Windows 95 Poly Software International, P.O. Box 526368, Salt Lake City, UT 84152. Phone:  (801) 485-0486. List price $299.00. Thomas H. Whitesides p 5990 DOI: 10.1021/ja965930q

nQuery Advisor Version 1.0 Statistical Solutions, Ltd., 60 State St., Suite 700, Boston, MA 02109. Phone:  (617) 854-7472. Written by Janet D. Elashoff. List Price $475.00. Sharon D. Bryant pp 5990–5991 DOI: 10.1021/ja965926e

Synthetic and Natural Phenols. Studies in Organic Chemistry #52 By J. H. P. Tyman (Brunel University, Uxbridge, U.K.). Elsevier:  Amsterdam. 1996. xx + 700 pp. $368.75. ISBN 0-444-88164-6. A. G. Pinkus p 5991 DOI: 10.1021/ja9755065

Early Transition Metal Clusters with Pi-Donor Ligands Edited by Malcolm H. Chisholm (Indiana University). VCH:  New York. 1995. xii + 289 pp. $115.00. ISBN 1-56081-684-8. Ian P. Rothwell pp 5991–5992 DOI: 10.1021/ja9553009

Spreadsheets for Chemists By G. Filby (Nuclear Research Center, FRG). VCH:  New York. 1995. xx + 408 pp. $60.00. ISBN 3-527-28570-9. Neil J. Asting p 5992 DOI: 10.1021/ja955236v

Transport Properties of Fluids:  Their Correlation, Prediction and Estimation Edited by Jürgen Millat (NORDUM Institut für Umwelt und Analytik GmbH, Kessin/Rostock, Germany), John H. Dymond (The University, Glasgow, U.K.), and C. A. Nieto de Castro (University of Lisbon, Portugal). Cambridge University Press:  New York, 1996. xiv + 483 pp. $90.00. ISBN 0-521-46178-2. Alan R. Allnatt p 5992 DOI: 10.1021/ja965733r

Issue 26

Formation of Bridge-Methylated Decalins by Antibody-Catalyzed Tandem Cationic Cyclization Jens Hasserodt, Kim D. Janda, and Richard A. Lerner pp 5993–5998 DOI: 10.1021/ja970675a Supporting Info

DNA−DNA Interstrand Cross-Linking by FR66979:  Intermediates in the Activation Cascade Manuel M. Paz and Paul B. Hopkins pp 5999–6005 DOI: 10.1021/ja970350u

Vibrational Raman Optical Activity as a Probe of Polyribonucleotide Solution Stereochemistry Alasdair F. Bell, Lutz Hecht, and Laurence D. Barron pp 6006–6013 DOI: 10.1021/ja9704388

DNA Triplex Stabilization Using a Tethered Minor Groove Binding Hoechst 33258 Analogue Jordi Robles and Larry W. McLaughlin pp 6014–6021 DOI: 10.1021/ja963694d

syn-Oxidative Polycyclizations of Hydroxypolyenes:  Highly Stereoselective and Potentially Biomimetic Syntheses of all-trans-Polytetrahydrofurans Timothy B. Towne and Frank E. McDonald pp 6022–6028 DOI: 10.1021/ja962837t Supporting Info

Synthesis of a Series of Octabutoxy- and Octabutoxybenzophthalocyanines and Photophysical Properties of Two Members of the Series Mohamed Aoudia, Gongzhen Cheng, Vance O. Kennedy, Malcolm E. Kenney, and Michael A. J. Rodgers pp 6029–6039 DOI: 10.1021/ja963702q

Asymmetric C−N Bond Constructions via Crotylsilane Addition Reactions:  A Stereocontrolled Route to Dipeptide Isosteres Craig E. Masse, Bradford S. Knight, Pericles Stavropoulos, and James S. Panek pp 6040–6047 DOI: 10.1021/ja964364w Supporting Info

A Highly Catalytic Bimetallic System for the Low-Temperature Selective Oxidation of Methane and Lower Alkanes with Dioxygen as the Oxidant Minren Lin, Terrence Hogan, and Ayusman Sen pp 6048–6053 DOI: 10.1021/ja964371k

Nickel-Catalyzed Amination of Aryl Chlorides John P. Wolfe and Stephen L. Buchwald pp 6054–6058 DOI: 10.1021/ja964391m

Thermolysis and Photolysis of a γ-Azoperester. Cyclization of γ-Azo and γ-Perester Radicals Paul S. Engel, Shu Lin He, and William B. Smith pp 6059–6065 DOI: 10.1021/ja970143u Supporting Info

Asymmetric Photocyclization of Diarylethene Derivatives Tadatsugu Yamaguchi, Kingo Uchida, and Masahiro Irie pp 6066–6071 DOI: 10.1021/ja970200j

A Convergent Synthetic Route to (+)-Dynemicin A and Analogs of Wide Structural Variability Andrew G. Myers, Norma J. Tom, Mark E. Fraley, Scott B. Cohen, and David J. Madar pp 6072–6094 DOI: 10.1021/ja9703741 Supporting Info

Reactivity toward Dioxygen of Dicobalt Face-to-Face Diporphyrins in Aprotic Media. Experimental and Theoretical Aspects. Possible Mechanistic Implication in the Reduction of Dioxygen Yves Le Mest, Claude Inisan, André Laouénan, Maurice L'Her, Jean Talarmin, Moulay El Khalifa, and Jean-Yves Saillard pp 6095–6106 DOI: 10.1021/ja9618659 Supporting Info

Synthesis and Spectroscopic Properties of Dihydrogen Isocyanide Niobocene [Nb(η5-C5H4SiMe3)2(η2-H2)(CNR)]+ Complexes. Experimental and Theoretical Study of the Blocked Rotation of a Coordinated Dihydrogen Antonio Antiñolo, Fernando Carrillo-Hermosilla, Mariano Fajardo, Santiago Garcia-Yuste, Antonio Otero, Santiago Camanyes, Feliu Maseras, Miquel Moreno, Agustí Lledós, and José M. Lluch pp 6107–6114 DOI: 10.1021/ja9640354

Oxygen Transfer from Organoelement Oxides to Carbon Monoxide Catalyzed by Transition Metal Carbonyls Anne M. Kelly, Glen P. Rosini, and Alan S. Goldman pp 6115–6125 DOI: 10.1021/ja970158s

Diastereomeric 1,4,7,10-Tetrakis((S)-2-hydroxypropyl)- 1,4,7,10-tetraazacyclododecane and Its Alkali Metal Complex Ions. A Nuclear Magnetic Resonance, Potentiometric Titration, and Molecular Orbital Study Ramesh S. Dhillon, Samer E. Madbak, Frank G. Ciccone, Mark A. Buntine, Stephen F. Lincoln, and Kevin P. Wainwright pp 6126–6134 DOI: 10.1021/ja9702071

X-ray Absorption Studies on the Mixed-Valence and Fully Reduced Forms of the Soluble CuA Domains of Cytochrome c Oxidase Ninian J. Blackburn, Simon de Vries, Mary E. Barr, Robert P. Houser, William B. Tolman, Donita Sanders, and James A. Fee pp 6135–6143 DOI: 10.1021/ja970513e

Ordering of Interfacial Water Molecules at the Charged Air/Water Interface Observed by Vibrational Sum Frequency Generation D. E. Gragson, B. M. McCarty, and G. L. Richmond pp 6144–6152 DOI: 10.1021/ja962277y

Synthetic Design for Combinatorial Chemistry. Solution and Polymer-Supported Synthesis of Polycyclic Lactams by Intramolecular Cyclization of Azomethine Ylides Matthew A. Marx, Anne-Laure Grillot, Christopher T. Louer, Krista A. Beaver, and Paul A. Bartlett pp 6153–6167 DOI: 10.1021/ja9621051 Supporting Info

A Theoretical Study of the Electronic Spectra of Adenine and Guanine Markus P. Fülscher, Luis Serrano-Andrés, and Björn O. Roos pp 6168–6176 DOI: 10.1021/ja964426i

The Role of Bulky Substituents in Brookhart-Type Ni(II) Diimine Catalyzed Olefin Polymerization:  A Combined Density Functional Theory and Molecular Mechanics Study Liqun Deng, Tom K. Woo, Luigi Cavallo, Peter M. Margl, and Tom Ziegler pp 6177–6186 DOI: 10.1021/ja970226a Supporting Info

First Ruthenium-Catalyzed Intramolecular Pauson−Khand Reaction Teruyuki Kondo, Nobuyoshi Suzuki, Takumi Okada, and Take-aki Mitsudo pp 6187–6188 DOI: 10.1021/ja970793y Supporting Info

Highly Efficient Epoxidation of Olefins Using Aqueous H2O2 and Catalytic Methyltrioxorhenium/Pyridine:  Pyridine-Mediated Ligand Acceleration Joachim Rudolph, K. Laxma Reddy, Jay P. Chiang, and K. Barry Sharpless pp 6189–6190 DOI: 10.1021/ja970623l Supporting Info

Enantioselective Permeation of Amino Acids across Membranes Prepared from 3α-Helix Bundle Polyglutamates with Oxyethylene Chains Kenzo Inoue, Akiko Miyahara, and Tomoyuki Itaya pp 6191–6192 DOI: 10.1021/ja9635544

Re2Rh2 μ3-[η1-C(Re):η1-O(Rh):η1-O‘(Rh‘)] Bis(carbon dioxide) Complexes [(η5-C5R5)(L)(NO)Re(CO2)Rh(η4-diene)]2 That Are Structurally Related to Rhodium(I) Carboxylate Dimers [Rh(O2CR)(η4-diene)]2 Stephen M. Tetrick, Fook S. Tham, and Alan R. Cutler pp 6193–6194 DOI: 10.1021/ja970341l Supporting Info

De Novo Design of Mercury-Binding Two- and Three-Helical Bundles Gregg R. Dieckmann, Donald K. McRorie, David L. Tierney, Lisa M. Utschig, Christopher P. Singer, Thomas V. O'Halloran, James E. Penner-Hahn, William F. DeGrado, and Vincent L. Pecoraro pp 6195–6196 DOI: 10.1021/ja964351i Supporting Info

Dendrimers as Controlled Artificial Energy Antennae Arie Bar-Haim, Joseph Klafter, and Raoul Kopelman pp 6197–6198 DOI: 10.1021/ja970972f

Differential Control of Intramolecular Charge Separation and Recombination Rates Using Nematic Liquid Crystal Solvents Gary P. Wiederrecht, Walter A. Svec, and Michael R. Wasielewski pp 6199–6200 DOI: 10.1021/ja970925n

Pump−Dump−Probe Spectroscopy of Bacteriorhodosin:  Evidence for a Near-IR Excited State Absorbance Feng Gai, J. Cooper McDonald, and Philip A. Anfinrud pp 6201–6202 DOI: 10.1021/ja9703685

Application of Phase-Modulated CLEAN Chemical EXchange Spectroscopy (CLEANEX-PM) to Detect Water−Protein Proton Exchange and Intermolecular NOEs Tsang-Lin Hwang, Susumu Mori, A. J. Shaka, and Peter C. M. van Zijl pp 6203–6204 DOI: 10.1021/ja970160j

Stereoselective Heteroatom-Assisted Allylic Alkylation of Cyclic Ethers with Grignard Reagents. A Convenient Route to Enantiomerically Pure Carbocycles Nicola M. Heron, Jeffrey A. Adams, and Amir H. Hoveyda pp 6205–6206 DOI: 10.1021/ja970885n Supporting Info

A New Planar Chiral Bisphosphine Ligand for Asymmetric Catalysis:  Highly Enantioselective Hydrogenations under Mild Conditions Philip J. Pye, Kai Rossen, Robert A. Reamer, Nancy N. Tsou, R. P. Volante, and Paul J. Reider pp 6207–6208 DOI: 10.1021/ja970654g Supporting Info

Noncovalent Formation of Polyglycine II-Type Structure by Hexagonal Self-Assembly of Linear Polymolecular Chains Toshimi Shimizu, Masaki Kogiso, and Mitsutoshi Masuda pp 6209–6210 DOI: 10.1021/ja970844r Supporting Info

Biomarkers in Food Chemical Risk Assessment Edited by Helen M. Crews and A. Bryan Hanley (CSL Food Science Laboratory, Norwich, U.K.). The Royal Society of Chemistry:  Cambridge, 1995. £45.00. x + 138 pp. ISBN 0-85404-790-5. Daina Briedis p 6211 DOI: 10.1021/ja965503c

Theoretical Studies of o-, m-, and p-Benzyne Negative Ions J. Am. Chem. Soc. 1996, 118, 11872−11883 John J. Nash and Robert R. Squires p 6211 DOI: 10.1021/ja975406z

Polymer Syntheses, Volume III, Second Edition By Stanley R. Sandler (ELF ATOCHEM North America, Inc.) and Wolf Karo. Academic Press:  San Diego. 1996. xiii + 424 pp. ISBN 0-12-618513-1. Roger K. Bunting pp 6211–6212 DOI: 10.1021/ja965796+

Photothermal Spectroscopy Methods for Chemical Analysis. Chemical Analysis Series, Volume 134 By Stephen E. Bialkowski (Utah State University). Wiley:  New York. 1996. xxix + 584 pp. $89.95. ISBN 0-471-57467-8. Joel M. Harris p 6212 DOI: 10.1021/ja965536s

The Chemistry of the Atmosphere − Oxidants and Oxidation in the Earth's Atmosphere, 7th BOC Priestley Conference Edited by A. R. Bandy (Drexel University). The Royal Society of Chemistry:  Cambridge. 1995. viii + 228 pp. £55.00. ISBN 0-85404-765-4. p 6212 DOI: 10.1021/ja965553h

DNA Sequencing Strategies:  Automated and Advanced Approaches Edited by Wilhelm Ansorge, Hartmut Voss, and Jürgen Zimmermann (EMBL, Heidelberg). Wiley:  New York. 1996. xiv + 202 pp. $39.95. ISBN 0-471-13683-2. Minou Bina p 6212 DOI: 10.1021/ja965791c

Issue 27

The Place of a General Chemistry Journal in an Increasingly Specialized Research Environment p 6213 DOI: 10.1021/ja975499k

Sequence and Structure Dependence of the Hybridization-Triggered Reaction of Oligonucleotides Bearing Conjugated Cyclopropapyrroloindole Eugeny A. Lukhtanov, Igor V. Kutyavin, Vladimir V. Gorn, Michael W. Reed, A. David Adams, Deborah D. Lucas, and Rich B. Meyer, Jr. pp 6214–6225 DOI: 10.1021/ja9703133 Supporting Info

Free Radical Cyclizations in Alkaloid Total Synthesis:  (±)-21-Oxogelsemine and (±)-Gelsemine Shogo Atarashi, Joong-Kwon Choi, Deok-Chan Ha, David J. Hart, Daniel Kuzmich, Chih-Shone Lee, Subban Ramesh, and Shung C. Wu pp 6226–6241 DOI: 10.1021/ja970089h Supporting Info

Metal Ion Incorporation Reactions of the Cluster [Fe3S4(LS3)]3-, Containing the Cuboidal [Fe3S4]0 Core Jian Zhou, James W. Raebiger, Charles A. Crawford, and R. H. Holm pp 6242–6250 DOI: 10.1021/ja9704186

The Hexacyanotitanate Ion:  Synthesis and Crystal Structure of [NEt4]3[TiIII(CN)6]·4MeCN William R. Entley, Christopher R. Treadway, Scott R. Wilson, and Gregory S. Girolami pp 6251–6258 DOI: 10.1021/ja962773m Supporting Info

Dynamics of Thermal Motions within a Large Catalytic RNA Investigated by Cross-linking with Thiol−Disulfide Interchange Scott B. Cohen and Thomas R. Cech pp 6259–6268 DOI: 10.1021/ja9707421

Detection and Characterization of an Oxomanganese(V) Porphyrin Complex by Rapid-Mixing Stopped-Flow Spectrophotometry John T. Groves, Jinbo Lee, and Sudhakar S. Marla pp 6269–6273 DOI: 10.1021/ja962605u

Sharing the π-Bonding. An Iron Porphyrin Derivative with Trans, π-Accepting Axial Ligands. Synthesis, EPR and Mössbauer Spectra, and Molecular Structure of Two Forms of the Complex Nitronitrosyl(α,α,α,α-tetrakis(o-pivalamidophenyl)- porphinato)ferrate(II) Habib Nasri, Mary K. Ellison, Shuxian Chen, Boi Hanh Huynh, and W. Robert Scheidt pp 6274–6283 DOI: 10.1021/ja963871a Supporting Info

Change in Electron Configuration of Ferric Ion in Bis(cyanide)(meso-tetraalkylporphyrinatoiron(III)), [Fe(TRP)(CN)2]-, Caused by the Nonplanarity of the Porphyrin Ring Mikio Nakamura, Takahisa Ikeue, Hiroshi Fujii, and Tetsuhiko Yoshimura pp 6284–6291 DOI: 10.1021/ja970602r

Synthetic Routes to Ga(CN)3 and MGa(CN)4 (M = Li, Cu) Framework Structures Louis C. Brousseau, Darrick Williams, J. Kouvetakis, and M. O'Keeffe pp 6292–6296 DOI: 10.1021/ja9702024

A Multiplet Analysis of Fe K-Edge 1s → 3d Pre-Edge Features of Iron Complexes Tami E. Westre, Pierre Kennepohl, Jane G. DeWitt, Britt Hedman, Keith O. Hodgson, and Edward I. Solomon pp 6297–6314 DOI: 10.1021/ja964352a

Enantioselective Homogeneous Catalysis and the “3,5-Dialkyl Meta-Effect”. MeO−BIPHEP Complexes Related to Heck, Allylic Alkylation, and Hydrogenation Chemistry Gerald Trabesinger, Alberto Albinati, Nantko Feiken, Roland W. Kunz, Paul S. Pregosin, and Matthias Tschoerner pp 6315–6323 DOI: 10.1021/ja964406g Supporting Info

Anion Binding within the Cavity of π-Metalated Calixarenes Mara Staffilani, Kirsty S. B. Hancock, Jonathan W. Steed, K. Travis Holman, Jerry L. Atwood, Ravindra K. Juneja, and Robert S. Burkhalter pp 6324–6335 DOI: 10.1021/ja9702172 Supporting Info

Soft X-ray Absorption and X-ray Photoelectron Spectroscopic Study of Tautomerism in Intramolecular Hydrogen Bonds of N-Salicylideneaniline Derivatives Eisuke Ito, Hiroshi Oji, Tohru Araki, Kazuyoshi Oichi, Hisao Ishii, Yukio Ouchi, Toshiaki Ohta, Nobuhiro Kosugi, Yusei Maruyama, Toshio Naito, Tamotsu Inabe, and Kazuhiko Seki pp 6336–6344 DOI: 10.1021/ja9641362

Chirality Assignment of Amines and Amino Alcohols Based on Circular Dichroism Induced by Helix Formation of a Stereoregular Poly((4-carboxyphenyl)acetylene) through Acid−Base Complexation Eiji Yashima, Teruyuki Matsushima, and Yoshio Okamoto pp 6345–6359 DOI: 10.1021/ja964470y Supporting Info

Determination of and χ1 Angles in Proteins from 13C−13C Three-Bond J Couplings Measured by Three-Dimensional Heteronuclear NMR. How Planar Is the Peptide Bond? Jin-Shan Hu and Ad Bax pp 6360–6368 DOI: 10.1021/ja970067v Supporting Info

Dual Fluorescence from N6,N6-Dimethyladenosine Bo Albinsson pp 6369–6375 DOI: 10.1021/ja9705203

Experimental and Theoretical Studies of Silacycloheptatrienyl Cation Formation from Phenylsilane Russell L. Jarek and Seung Koo Shin pp 6376–6383 DOI: 10.1021/ja9630295 Supporting Info

Hydrogen-Bonding and Protonation Effects in Electrochemistry of Quinones in Aprotic Solvents Neeraj Gupta and Henry Linschitz pp 6384–6391 DOI: 10.1021/ja970028j

Reactions of Laser-Ablated Beryllium Atoms with Hydrogen Cyanide in Excess Argon. FTIR Spectra and Quantum Chemical Calculations on BeCN, BeNC, HBeCN, and HBeNC Dominick V. Lanzisera and Lester Andrews pp 6392–6398 DOI: 10.1021/ja970740g

Water in Supercritical Carbon Dioxide Microemulsions:  Spectroscopic Investigation of a New Environment for Aqueous Inorganic Chemistry Matthew J. Clarke, Kristi L. Harrison, Keith P. Johnston, and Steven M. Howdle pp 6399–6406 DOI: 10.1021/ja9639527

Singlet−Singlet Energy Transfer Mechanisms in Covalently-Linked Fucoxanthin− and Zeaxanthin−Pyropheophorbide Molecules Martin P. Debreczeny, Michael R. Wasielewski, Satoshi Shinoda, and Atsuhiro Osuka pp 6407–6414 DOI: 10.1021/ja970594e

Theoretical Study of the Gas Phase Decomposition of Glycolic, Lactic, and 2-Hydroxyisobutyric Acids L. R. Domingo, J. Andrés, V. Moliner, and V. S. Safont pp 6415–6422 DOI: 10.1021/ja962857v Supporting Info

Acylation of β-Lactams by Class A β-Lactamase:  An ab Initio Theoretical Study on the Effects of the Oxy-Anion Hole Brian D. Wladkowski, Sarah A. Chenoweth, Julie N. Sanders, Morris Krauss, and Walter J. Stevens pp 6423–6431 DOI: 10.1021/ja963678g

15N NMR of a Specifically Labeled RNA Fragment Containing Intrahelical GU Wobble Pairs Xiaohu Zhang, Barbara L. Gaffney, and Roger A. Jones pp 6432–6433 DOI: 10.1021/ja970370w

Microelectrode Sensors for in Vivo Detection of Radiopharmaceuticals Maria Theresa B. Lee, Carl J. Seliskar, William R. Heineman, and Anthony J. McGoron pp 6434–6435 DOI: 10.1021/ja964463+

Low-Temperature NMR Studies on the Structure of Uridine Dimers Klaus Weisz, Judith Jähnchen, and Hans-Heinrich Limbach pp 6436–6437 DOI: 10.1021/ja970769k

Asymmetric Exo-Selective Diels−Alder Reactions by Steric Attenuation of Secondary Orbital Interactions Timothy S. Powers, Weiqin Jiang, Jing Su, and William D. WulffBeth E. Waltermire and Arnold L. Rheingold pp 6438–6439 DOI: 10.1021/ja963881b Supporting Info

Toward Quantum Line−Self-Assembly Process of Nanomolecular Building Blocks Leading to a Novel One-Dimensional Nanomolecular Polymer:  Single-Crystal X-ray Structure of {[H3O]+12{(H2O)MoO2.5[Mo36O108(NO)4(H2O)16]- O2.5Mo(H2O)}12-}n Shi-Wei Zhang, Yong-Ge Wei, Qing Yu, Mei-Cheng Shao, and You-Qi Tang pp 6440–6441 DOI: 10.1021/ja961637e Supporting Info

New Metalloporphyrins with Extremely Altered Redox Properties:  Synthesis, Structure, and Facile Reduction to Air-Stable π-Anion Radicals of Zinc and Nickel β-Heptanitroporphyrins Karine Ozette, Philippe Leduc, Magali Palacio, Jean-Francois Bartoli, Kathleen M. Barkigia, Jack Fajer, Pierrette Battioni, and Daniel Mansuy pp 6442–6443 DOI: 10.1021/ja970882a Supporting Info

HIV-1 TAR RNA Recognition by an Unnatural Biopolymer Xilu Wang, Ikramul Huq, and Tariq M. Rana pp 6444–6445 DOI: 10.1021/ja963895h Supporting Info

Stereochemical Course of the Oxidation of l-Pipecolic Acid by the Flavoenzyme l-Pipecolate Oxidase T. Mark Zabriskie, Wendy L. Kelly, and Xi Liang pp 6446–6447 DOI: 10.1021/ja970825h Supporting Info

Selective Hydroformylation of Internal Acetylenes by PdCl2(PCy3)2:  Remarkable Synergistic Effect of Cobalt1 Youichi Ishii, Kenya Miyashita, Kenji Kamita, and Masanobu Hidai pp 6448–6449 DOI: 10.1021/ja9703887

Time-Resolved Binding of Carbon Monoxide to Nitrogenase Monitored by Stopped-Flow Infrared Spectroscopy Simon J. George, Gillian A. Ashby, Christopher W. Wharton, and Roger N. F. Thorneley pp 6450–6451 DOI: 10.1021/ja971088s

Chiral Magnesium Bis(sulfonamide) Complexes as Catalysts for the Merged Enolization and Enantioselective Amination of N-Acyloxazolidinones. A Catalytic Approach to the Synthesis of Arylglycines David A. Evans and Scott G. Nelson pp 6452–6453 DOI: 10.1021/ja971367f Supporting Info

Inorganic Syntheses. Volume 31. Edited by Alan H. Cowley (The University of Texas at Austin). Wiley:  New York. 1996. xix + 347 pp. $60.00. ISBN 0-471-15288-9. Joseph W. Bruno p 6454 DOI: 10.1021/ja9658067

Molecular Dynamics Simulation Study of the B-States of Solvated Carbon Monoxymyoglobin J. Am. Chem. Soc. 1997, 119, 2541−2551 Jianpeng Ma, Shuanghong Huo, and John E. Straub p 6454 DOI: 10.1021/ja975407r

Structure and Properties of Li+ (Cryptand [2.1.1])e-, an Electride with a 1D “Spin-Ladder-like” Cavity-Channel Geometry J. Am. Chem. Soc. 1997, 119, 3765−3772 Rui H. Huang, Michael J. Wagner, Deborah J. Gilbert, Kerry A. Reidy-Cedergren, Donald L. Ward, Margaret K. Faber, and James L. Dye p 6454 DOI: 10.1021/ja975408j

Solid-Liquid Filtration and Separation Technology By Albert Rushton, Anthony S. Ward, and Richard G. Holdich (Loughborough University of Technology). VCH:  New York. 1996. xiii + 538 pp. $185.00. ISBN 3-527-28613-6. Richard Branion pp 6454–6455 DOI: 10.1021/ja965704g

NMR of Polymers By Frank A. Bovey and Peter A. Mirau (AT&T Bell Labs, New Jersey). Academic Press:  San Diego. 1996. x + 459 pp. $85.00. ISBN 0-12-119765-4. Almeria Natansohn p 6455 DOI: 10.1021/ja965789l

Perspectives on Bioinorganic Chemistry, Volume 3 Edited by Robert W. Hay (University of St. Andrews), Jon R. Dilworth (University of Essex), and Kevin B. Nolan (Royal College of Surgeons in Ireland). JAI Press:  Greenwich. 1996. xi + 286 pp. $109.50. ISBN 1-55938-642-8. Rebecca R. Conry pp 6455–6456 DOI: 10.1021/ja9657566

Spectrophotometric Reactions:  Practical Spectroscopy Series, Vol. 22 By Irena Nemcova, Ludmila Cermakova, and Jiri Gasparic (Charles University). Marcel Dekker:  New York. 1996. vi + 250 pp. $135.00. ISBN 0-8247-9451-6. A. Scott Hinman p 6456 DOI: 10.1021/ja965672x

Advanced Series in Physical Chemistry. Volume 3. Progress and Problems in Atmospheric Chemistry Edited by John R. Barker (The University of Michigan). World Scientific:  River Edge, NJ. 1995. x + 941 pp. $95.00. ISBN 981-02-2113-4. Joseph J. BelBruno p 6456 DOI: 10.1021/ja965713p

Issue 28

Generation of a Tryptophan Radical in High Quantum Yield from a Novel Amino Acid Analog Using Near-UV/Visible Light Doug Burdi, Béatrice M. Aveline, Paul D. Wood, JoAnne Stubbe, and Robert W. Redmond pp 6457–6460 DOI: 10.1021/ja9706918

A Template for Stabilization of a Peptide α-Helix:  Synthesis and Evaluation of Conformational Effects by Circular Dichroism and NMR Richard E. Austin, Rachael A. Maplestone, Andrea M. Sefler, Kim Liu, Witold N. Hruzewicz, Corey W. Liu, Ho S. Cho, David E. Wemmer, and Paul A. Bartlett pp 6461–6472 DOI: 10.1021/ja964231a Supporting Info

Highly Effective Compaction of Long Duplex DNA Induced by Polyethylene Glycol with Pendant Amino Groups Kenichi Yoshikawa, Yuko Yoshikawa, Yoshiyuki Koyama, and Toshio Kanbe pp 6473–6477 DOI: 10.1021/ja970445w

Synthesis of Cyclohexenols and Cycloheptenols via the Regioselective Reductive Ring Opening of Oxabicyclic Compounds Mark Lautens, Shihong Ma, and Pauline Chiu pp 6478–6487 DOI: 10.1021/ja964361j

Total Synthesis of the Cyclic Biphenyl Ether Peptides K-13 and OF4949-III via SNAr Macrocyclization of Peptidyl Ruthenium π-Arene Complexes James W. Janetka and Daniel H. Rich pp 6488–6495 DOI: 10.1021/ja970614c Supporting Info

Pseudoephedrine as a Practical Chiral Auxiliary for the Synthesis of Highly Enantiomerically Enriched Carboxylic Acids, Alcohols, Aldehydes, and Ketones Andrew G. Myers, Bryant H. Yang, Hou Chen, Lydia McKinstry, David J. Kopecky, and James L. Gleason pp 6496–6511 DOI: 10.1021/ja970402f Supporting Info

Protonation Mechanism of Poly(propylene imine) Dendrimers and Some Associated Oligo Amines G. J. M. Koper, M. H. P. van Genderen, C. Elissen-Román, M. W. P. L. Baars, E. W. Meijer, and M. Borkovec pp 6512–6521 DOI: 10.1021/ja970442j Supporting Info

Toward the Rational Design of Superoxide Dismutase Mimics:  Mechanistic Studies for the Elucidation of Substituent Effects on the Catalytic Activity of Macrocyclic Manganese(II) Complexes Dennis P. Riley, Patrick J. Lennon, William L. Neumann, and Randy H. Weiss pp 6522–6528 DOI: 10.1021/ja964271e Supporting Info

Alternative Mechanisms of the Alkyne to Vinylidene Isomerization Promoted by Half-Sandwich Ruthenium Complexes. X-ray Crystal Structures of [Cp*RuCCHCOOMe(dippe)][BPh4] and [Cp*RuH(CCCOOMe)(dippe)][BPh4] (dippe = 1,2-bis(diisopropylphosphino)ethane; Cp* = C5Me5) Isaac de los Ríos, Manuel Jiménez Tenorio, M. Carmen Puerta, and Pedro Valerga pp 6529–6538 DOI: 10.1021/ja9701220 Supporting Info

Angular and Distance Dependence of the Magnetic Properties of Oxo-Bridged Iron(III) Dimers Högni Weihe and Hans U. Güdel pp 6539–6543 DOI: 10.1021/ja970320r

Reactions of Gaseous Vinyl Halide Radical Cations with Ammonia. A Study of Mechanism by Fourier-Transform Ion Cyclotron Resonance Spectrometry and ab Initio Molecular Orbital Calculation Andreas Nixdorf and Hans-Friedrich Grützmacher pp 6544–6551 DOI: 10.1021/ja9619465

Collision-Induced Dissociation Threshold Energies of Protonated Glycine, Glycinamide, and Some Related Small Peptides and Peptide Amino Amides John S. Klassen and Paul Kebarle pp 6552–6563 DOI: 10.1021/ja962813m

Ab Initio Calculations on 1,3,5-Trimethylenebenzene and Its Negative Ion Provide Predictions about the Photoelectron Spectrum of the Ion Carl R. Kemnitz, Robert R. Squires, and Weston Thatcher Borden pp 6564–6574 DOI: 10.1021/ja970195j

Large Molecular Hyperpolarizabilities. Quantitative Analysis of Aromaticity and Auxiliary Donor−Acceptor Effects Israel D. L. Albert, Tobin J. Marks, and Mark A. Ratner pp 6575–6582 DOI: 10.1021/ja962968u

Ab Initio Density Functional Computations of Conformations and Bond Dissociation Energies for Hexahydro-1,3,5-trinitro-1,3,5-triazine Nathan J. Harris and Koop Lammertsma pp 6583–6589 DOI: 10.1021/ja970392i Supporting Info

Electrochemistry of Electron Transfer Probes. Observation of the Transition from Activation to Counterdiffusion Control in the Fragmentation of α-Aryloxyacetophenone Radical Anions1a Mogens L. Andersen, William Long, and Danial D. M. Wayner pp 6590–6595 DOI: 10.1021/ja963374u

Electrochemical Oxidative Adsorption of Ethanethiolate on Ag(111) David W. Hatchett, Keith J. Stevenson, William B. Lacy, Joel M. Harris, and Henry S. White pp 6596–6606 DOI: 10.1021/ja964396j

Polycationic High-Spin States of One- and Two-Dimensional (Diarylamino)benzenes, Prototypical Model Units for Purely Organic Ferromagnetic Metals As Studied by Pulsed ESR/Electron Spin Transient Nutation Spectroscopy Kazunobu Sato, Masafumi Yano, Mutsuo Furuichi, Daisuke Shiomi, Takeji Takui, Kyo Abe, Koichi Itoh, Akiji Higuchi, Katsuhiko Katsuma, and Yasuhiko Shirota pp 6607–6613 DOI: 10.1021/ja963372+

Resonance Raman Investigations of Cytochrome P450cam Complexed with Putidaredoxin Masashi Unno, James F. Christian, David E. Benson, Nancy C. Gerber, Stephen G. Sligar, and Paul M. Champion pp 6614–6620 DOI: 10.1021/ja963785a

Unusual Dynamics and pKa Shift at the Active Site of a Lead-Dependent Ribozyme Pascale Legault and Arthur Pardi pp 6621–6628 DOI: 10.1021/ja9640051

Conformational Study of Phospholipids in Crystalline State and Hydrated Bilayers by 13C and 31P CP-MAS NMR Karol S. Bruzik and John S. Harwood pp 6629–6637 DOI: 10.1021/ja970720e

Electronic Relaxation Dynamics in Coupled Metal Nanoparticles Mark J. Feldstein, Christine D. Keating, Yish-Hann Liau, Michael J. Natan, and Norbert F. Scherer pp 6638–6647 DOI: 10.1021/ja964098m

The π-Donor Ability of the Halogens in Cations and Neutral Molecules. A Theoretical Study of AX3+, AH2X+, YX3, and YH2X (A = C, Si, Ge, Sn, Pb; Y = B, Al, Ga, In, Tl; X = F, Cl, Br, I) Gernot Frenking, Stefan Fau, Christina M. Marchand, and Hansjörg Grützmacher pp 6648–6655 DOI: 10.1021/ja970335p Supporting Info

Shell Cross-Linked Knedels:  A Synthetic Study of the Factors Affecting the Dimensions and Properties of Amphiphilic Core-Shell Nanospheres K. Bruce Thurmond, II, Tomasz Kowalewski, and Karen L. Wooley pp 6656–6665 DOI: 10.1021/ja9710520

Conversion of Myoglobin into a Peroxygenase:  A Catalytic Intermediate of Sulfoxidation and Epoxidation by the F43H/H64L Mutant Shin-ichi Ozaki, Toshitaka Matsui, and Yoshihito Watanabe pp 6666–6667 DOI: 10.1021/ja970453c

1,2,4-Triazole-3,5-diylidene:  A Building Block for Organometallic Polymer Synthesis Olivier Guerret, Stéphane Solé, Heinz Gornitzka, Markus Teichert, Georges Trinquier, and Guy Bertrand pp 6668–6669 DOI: 10.1021/ja964191a Supporting Info

Synthesis and Characterization of Mn4O4L6 Complexes with Cubane-like Core Structure:  A New Class of Models of the Active Site of the Photosynthetic Water Oxidase Wolfgang F. Ruettinger, Charles Campana, and G. Charles Dismukes pp 6670–6671 DOI: 10.1021/ja9639022 Supporting Info

Locally Anisotropic Internal Polypeptide Backbone Dynamics by NMR Relaxation T. Bremi and R. Brüschweiler pp 6672–6673 DOI: 10.1021/ja9708676

Multistep Synthesis on the Surface of Self-Assembled Thiolate Monolayers on Gold:  Probing the Mechanism of the Thiazolium-Promoted Acyloin Condensation Kianoush Motesharei and David C. Myles pp 6674–6675 DOI: 10.1021/ja970627q Supporting Info

Solution-to-Surface Molecular-Delivery System Using a Macrocyclic Sugar Cluster. Sugar-Directed Adsorption of Guests in Water on Polar Solid Surfaces Takako Fujimoto, Chikao Shimizu, Osamu Hayashida, and Yasuhiro Aoyama pp 6676–6677 DOI: 10.1021/ja9709536

A Way to Novel Heterometallic Raft-like Clusters from Neutral Precursors Cristina Tejel, You-Mao Shi, Miguel A. Ciriano, Andrew J. Edwards, Fernando J. Lahoz, Javier Modrego, and Luis A. Oro pp 6678–6679 DOI: 10.1021/ja963557g Supporting Info

WAP-8294A2, A Novel Anti-MRSA Antibiotic Produced by Lysobacter sp. Azusa Kato, Seigo Nakaya, Yoshitami Ohashi, and Haruhisa HirataKiyonaga Fujii and Ken-ichi Harada pp 6680–6681 DOI: 10.1021/ja970895o Supporting Info

[2]Staffane Rod as a Molecular Rack for Unraveling Conformer Properties:  Proposed Singlet Excitation Localization Isomerism in anti,anti,anti-Hexasilanes Stéphane Mazières, Mary K. Raymond, Gerhard Raabe, Anna Prodi, and Josef Michl pp 6682–6683 DOI: 10.1021/ja971059h Supporting Info

Identification of a Phosphorylated Enzyme Intermediate in the Catalytic Mechanism for Selenophosphate Synthetase Leisha S. Mullins, Suk-Bong Hong, Grant E. Gibson, Heidi Walker, Thressa C. Stadtman, and Frank M. Raushel pp 6684–6685 DOI: 10.1021/ja971074m

Stereocontrolled Total Synthesis of Hispidospermidin Alison J. Frontier, Subharekha Raghavan, and Samuel J. Danishefsky pp 6686–6687 DOI: 10.1021/ja970889s Supporting Info

Determination of the H−H Distance in Transition-Metal Dihydrogen Complexes:  Effects of High Magnetic Fields Thomas A. Luther and D. Michael Heinekey pp 6688–6689 DOI: 10.1021/ja970954y

Identification of the Active Site Cysteine in Bovine Liver Monoamine Oxidase B Boyu Zhong and Richard B. Silverman pp 6690–6691 DOI: 10.1021/ja9711369

Triple-Helical Nucleic Acids By Valery N. Soyfer (George Mason University) and Vladimir N. Potaman (Texas A&M University). Springer:  New York. 1995. xiv + 360 pp. $79.00. ISBN 0-387-94495-8. Sergei M. Mirkin p 6692 DOI: 10.1021/ja9655707

X-ray Absorption Fine Structure for Catalysts and Surfaces. Series on Synchrotron Radiation Techniques and Applications. Volume 2 Edited by Yasuhiro Iwasawa (The University of Tokyo). World Scientific:  River Edge, NJ. 1996. xvi + 410 pp. $86.00. ISBN 981 02-2323-4. Eric C. Niederhoffer p 6692 DOI: 10.1021/ja965807z

Issue 29

Nanosecond Molecular Dynamics Study of a Polycation Ribonucleic Guanidine (RNG) Duplexed with a Complementary DNA Oligomer Strand Jia Luo and Thomas C. Bruice pp 6693–6701 DOI: 10.1021/ja970188v

Chemoenzymatic Synthesis of a Characteristic Phosphorylated and Glycosylated Peptide Fragment of the Large Subunit of Mammalian RNA Polymerase II Torsten Pohl and Herbert Waldmann pp 6702–6710 DOI: 10.1021/ja970709e Supporting Info

Methods for Measurement of Intermolecular NOEs by Multinuclear NMR Spectroscopy:  Application to a Bacteriophage λ N-Peptide/boxB RNA Complex Catherine Zwahlen, Pascale Legault, Sébastien J. F. Vincent, Jack Greenblatt, Robert Konrat, and Lewis E. Kay pp 6711–6721 DOI: 10.1021/ja970224q

Molecular Dynamics Simulations Find That 3‘ Phosphoramidate Modified DNA Duplexes Undergo a B to A Transition and Normal DNA Duplexes an A to B Transition Piotr Cieplak, T. E. Cheatham, III, and Peter A. Kollman pp 6722–6730 DOI: 10.1021/ja963909j Supporting Info

Interplay of Hydrogen Abstraction and Radical Repair in the Generation of Single- and Double-Strand DNA Damage by the Esperamicins Jessica L. Epstein, Xiaodong Zhang, George A. Doss, Jerrold M. Liesch, Bala Krishnan, JoAnne Stubbe, and John W. Kozarich pp 6731–6738 DOI: 10.1021/ja964355n

Synthesis of a Protected (±)-Calicheamicinone Derivative by Sequential Introduction of Functionality into the Bicyclo[7.3.1]enediyne Core Structure Philip Magnus, Gregory F. Miknis, Neil J. Press, Didier Grandjean, G. Mark Taylor, and John Harling pp 6739–6748 DOI: 10.1021/ja970743t Supporting Info

Charge-Transfer-Induced Photoreduction of Azoalkanes by Amines Waldemar Adam, Jarugu N. Moorthy, Werner M. Nau, and J. C. Scaiano pp 6749–6756 DOI: 10.1021/ja9706460 Supporting Info

Photochemistry of (Fulvalene)tetracarbonyldiruthenium and Its Derivatives: Efficient Light Energy Storage Devices Roland Boese, J. Kevin Cammack, Adam J. Matzger, Kai Pflug, William B. Tolman, K. Peter C. Vollhardt, and Timothy W. Weidman pp 6757–6773 DOI: 10.1021/ja9707062 Supporting Info

Superacid-Catalyzed Electrocyclization of 1-Phenyl-2-propen-1-ones to 1-Indanones. Kinetic and Theoretical Studies of Electrocyclization of Oxonium−Carbenium Dications Takayoshi Suzuki, Tomohiko Ohwada, and Koichi Shudo pp 6774–6780 DOI: 10.1021/ja971100g Supporting Info

Lewis Acid Catalyzed trans-Allylsilylation of Unactivated Alkynes Eiji Yoshikawa, Vladimir Gevorgyan, Naoki Asao, and Yoshinori Yamamoto pp 6781–6786 DOI: 10.1021/ja970443b

Direct Observation of C−O Reductive Elimination from Palladium Aryl Alkoxide Complexes To Form Aryl Ethers Ross A. Widenhoefer, H. Annita Zhong, and Stephen L. Buchwald pp 6787–6795 DOI: 10.1021/ja963324p

Synthesis of Ordered Aluminophosphate and Galloaluminophosphate Mesoporous Materials with Anion-Exchange Properties Utilizing Polyoxometalate Cluster/Surfactant Salts as Precursors Brian T. Holland, Paul K. Isbester, Christopher F. Blanford, Eric J. Munson, and Andreas Stein pp 6796–6803 DOI: 10.1021/ja970823x Supporting Info

Mechanistic Studies of the Thermolysis of Tetraneopentyltitanium(IV). 1. Solution Evidence That Titanium Alkylidenes Activate Saturated Hydrocarbons Jinwoo Cheon, Deborah M. Rogers, and Gregory S. Girolami pp 6804–6813 DOI: 10.1021/ja970811b

Mechanistic Studies of the Thermolysis of Tetraneopentyltitanium(IV). 2. Solid State and Ultra-High-Vacuum Studies of the Chemical Vapor Deposition of TiC Films Jinwoo Cheon, Lawrence H. Dubois, and Gregory S. Girolami pp 6814–6820 DOI: 10.1021/ja9708124 Supporting Info

Mechanism of and Defect Formation in the Self-Assembly of Polymeric Polycation−Montmorillonite Ultrathin Films N. A. Kotov, T. Haraszti, L. Turi, G. Zavala, R. E. Geer, I. Dékány, and J. H. Fendler pp 6821–6832 DOI: 10.1021/ja964409t Supporting Info

Modification of Spin Density Distribution via Specific Hydrogen Bond Interactions:  An Experimental, UHF, and Density Functional Study Vincent M. Rotello pp 6833–6836 DOI: 10.1021/ja970801a Supporting Info

Empirical Correlations between 207Pb NMR Chemical Shifts and Structure in Solids F. Fayon, I. Farnan, C. Bessada, J. Coutures, D. Massiot, and J. P. Coutures pp 6837–6843 DOI: 10.1021/ja963593f

NMR Study of Rapidly Exchanging Backbone Amide Protons in Staphylococcal Nuclease and the Correlation with Structural and Dynamic Properties Susumu Mori, Chitrananda Abeygunawardana, Jeremy M. Berg, and Peter C. M. van Zijl pp 6844–6852 DOI: 10.1021/ja963351f

Direct Determination of a Molecular Torsional Angle in the Membrane Protein Rhodopsin by Solid-State NMR X. Feng, P. J. E. Verdegem, Y. K. Lee, D. Sandström, M. Edén, P. Bovee-Geurts, W. J. de Grip, J. Lugtenburg, H. J. M. de Groot, and M. H. Levitt pp 6853–6857 DOI: 10.1021/ja970710d

27Al{1H} Cross Polarization Triple-Quantum Magic Angle Spinning NMR C. Fernandez, L. Delevoye, J.-P. Amoureux, D. P. Lang, and M. Pruski pp 6858–6862 DOI: 10.1021/ja964440v

Intramolecular Electron Transfer between Doubly Four σ-Bond-Linked Tetraalkylhydrazine Cationic and Neutral Units Stephen F. Nelsen, Michael T. Ramm, J. Jens Wolff, and Douglas R. Powell pp 6863–6872 DOI: 10.1021/ja963415m Supporting Info

Intramolecular Electron Transfer between Doubly Six σ-Bond-Linked Trialkyldiazenium Cation and Diazenyl Radical Units Stephen F. Nelsen, Dwight A. Trieber, II, J. Jens Wolff, Douglas R. Powell, and Shervalen Rogers-Crowley pp 6873–6882 DOI: 10.1021/ja9634177 Supporting Info

Study of the Thermal Decomposition of 2-Azidoacetic Acid by Photoelectron and Matrix Isolation Infrared Spectroscopy J. M. Dyke, A. P. Groves, A. Morris, J. S. Ogden, A. A. Dias, A. M. S. Oliveira, M. L. Costa, M. T. Barros, M. H. Cabral, and A. M. C. Moutinho pp 6883–6887 DOI: 10.1021/ja964354v

Detection of Oligonucleotides Hybridized to a Planar Surface Using Matrix-Assisted Laser-Desorption Mass Spectroscopy Gowri Narayanaswami and Robert J. Levis pp 6888–6890 DOI: 10.1021/ja9609563

The C5H6NH2+ Protonated Shiff Base:  An ab Initio Minimal Model for Retinal Photoisomerization M. Garavelli, P. Celani, F. Bernardi, M. A. Robb, and M. Olivucci pp 6891–6901 DOI: 10.1021/ja9610895 Supporting Info

Transition Structures of the Ene Reactions of Cyclopropene Qiaolin Deng, Bert E. Thomas IV, K. N. Houk, and Paul Dowd pp 6902–6908 DOI: 10.1021/ja963248q Supporting Info

Assembly and Disassembly of Langmuir−Blodgett Films on Poly[1-(trimethylsilyl)-1-propyne]:  The Uniqueness of Calix[6]arene Multilayers as Permeation-Selective Membranes Robert A. Hendel, Eisaku Nomura, Vaclav Janout, and Steven L. Regen pp 6909–6918 DOI: 10.1021/ja970980w

Conformational Bias by a Removable Substituent. Synthesis of Eight-Membered Cyclic Ethers via Ring-Closing Metathesis Russell J. Linderman, James Siedlecki, Stacy A. O'Neill, and Hao Sun pp 6919–6920 DOI: 10.1021/ja9711674 Supporting Info

Peroxidative Halogenation Catalyzed by Transition-Metal-Ion-Grafted Mesoporous Silicate Materials Jerrylaine V. Walker, Mark Morey, Håkan Carlsson, Anne Davidson, Galen D. Stucky, and Alison Butler pp 6921–6922 DOI: 10.1021/ja971063t

Impact of the Precision in NMR Relaxation Measurements on the Interpretation of Protein Dynamics Danqing Jin, Francisco Figueirido, Gaetano T. Montelione, and Ronald M. Levy pp 6923–6924 DOI: 10.1021/ja970947+

Multicomponent Linchpin Couplings of Silyl Dithianes via Solvent-Controlled Brook Rearrangement Amos B. Smith, III and Armen M. Boldi pp 6925–6926 DOI: 10.1021/ja970371o Supporting Info

Disulfide Cross-linking as a Mechanistic Probe for the B ↔ Z Transition in DNA Daniel A. Erlanson, J. N. Mark Glover, and Gregory L. Verdine pp 6927–6928 DOI: 10.1021/ja9710666 Supporting Info

In Defense of the Catalytic Asymmetric Cis Dihydroxylation of Olefins Utilizing Insoluble Polymeric Ligands Piero Salvadori, Dario Pini, and Antonella Petri pp 6929–6930 DOI: 10.1021/ja970735c

Rational Design of Multicomponent Calix[4]arenes and Control of Their Alignment in the Solid State Leonard R. MacGillivray and Jerry L. Atwood pp 6931–6932 DOI: 10.1021/ja970758r Supporting Info

Reactions of (tert-Butyldimethylsilyl)alkynes with IPy2BF4:  Selective Synthesis of Novel Head-to-Head Dimers José Barluenga, Isidro Llorente, Lorenzo J. Alvarez-García, José M. González, Pedro J. Campos, M. Rosario Díaz, and Santiago García-Granda pp 6933–6934 DOI: 10.1021/ja970108n Supporting Info

Titanium(IV)−(R,R,R)-Tris(2-phenylethoxy)amine− Alkylperoxo Complex Mediated Oxidations:  The Biphilic Nature of the Oxygen Transfer to Organic Sulfur Compounds Marcella Bonchio, Stefano Calloni, Fulvio Di Furia, Giulia Licini, Giorgio Modena, Stefano Moro, and William A. Nugent pp 6935–6936 DOI: 10.1021/ja9711371 Supporting Info

Combination Catalysts Consisting of a Homogeneous Catalyst Tethered to a Silica-Supported Palladium Heterogeneous Catalyst:  Arene Hydrogenation Hanrong Gao and Robert J. Angelici pp 6937–6938 DOI: 10.1021/ja9710058

Sequence-Specific Targeting of Duplex DNA Using a Camptothecin-Triple Helix Forming Oligonucleotide Conjugate and Topoisomerase I Mark Matteucci, Kuei-Ying Lin, Teresa Huang, Richard Wagner, Daniel D. Sternbach, Mukund Mehrotra, and Jeffrey M. Besterman pp 6939–6940 DOI: 10.1021/ja9702475 Supporting Info

Aziridine Lithiation Using Lewis Acid Activation Edwin Vedejs and John T. Kendall pp 6941–6942 DOI: 10.1021/ja970164o Supporting Info

Using Porous Silicon as a Hydrogenating Agent:  Derivatization of the Surface of Luminescent Nanocrystalline Silicon with Benzoquinone Theresa F. Harper and Michael J. Sailor pp 6943–6944 DOI: 10.1021/ja9708979 Supporting Info

Probing the Role of Oxygen Coordination in Hydrocarbon Oxidation:  Methyl Radical Addition to Oxygen on Mo(110) K. T. Queeney, D. A. Chen, and C. M. Friend pp 6945–6946 DOI: 10.1021/ja9707771

Metal Complex Conjugates of Antisense DNA Which Display Ribozyme-Like Activity Darren Magda, Meredith Wright, Shaun Crofts, Alice Lin, and Jonathan L. Sessler pp 6947–6948 DOI: 10.1021/ja9711223 Supporting Info

Bu3SnH-Catalyzed Barton−McCombie Deoxygenation of Alcohols Rosa M. Lopez, David S. Hays, and Gregory C. Fu pp 6949–6950 DOI: 10.1021/ja971400y Supporting Info

A Stable Neutral Silaaromatic Compound, 2-{2,4,6-Tris[bis(trimethylsilyl)methyl]phenyl}- 2-silanaphthalene Norihiro Tokitoh, Keiji Wakita, Renji Okazaki, Shigeru Nagase, Paul von Ragué Schleyer, and Haijun Jiao pp 6951–6952 DOI: 10.1021/ja9710924 Supporting Info

Issue 30

Discrimination of 5‘-GGGG-3‘, 5‘-GCGC-3‘, and 5‘-GGCC-3‘ Sequences in the Minor Groove of DNA by Eight-Ring Hairpin Polyamides Susanne E. Swalley, Eldon E. Baird, and Peter B. Dervan pp 6953–6961 DOI: 10.1021/ja971184t

Crystal Conformation of the Cyclic Decapeptide Phakellistatin 8:  Comparison with Antamanide Delbert L. Herald, Giovanni L. Cascarano, George R. Pettit, and Jayaram K. Srirangam pp 6962–6973 DOI: 10.1021/ja9626648 Supporting Info

Di-, Tri-, and Tetravalent Dendritic Galabiosides That Inhibit Hemagglutination by Streptococcus suis at Nanomolar Concentration Henrik C. Hansen, Sauli Haataja, Jukka Finne, and Göran Magnusson pp 6974–6979 DOI: 10.1021/ja970859p

Kinetic Isotope Effects for Acyl Transfer from p-Nitrophenyl Acetate to Hydroxylamine Show a pH-Dependent Change in Mechanism Robert A. Hess, Alvan C. Hengge, and W. W. Cleland pp 6980–6983 DOI: 10.1021/ja970648k

Efficient and Practical Method for Synthesizing N-Heterocyclic Compounds Using Intramolecular Nucleophilic Acyl Substitution Reactions Mediated by Ti(O-i-Pr)4/2i-PrMgX Reagent. Synthesis of Quinolones, Pyrroles, Indoles, and Optically Active N-Heterocycles Including Allopumiliotoxin Alkaloid 267A Sentaro Okamoto, Masayuki Iwakubo, Katsushige Kobayashi, and Fumie Sato pp 6984–6990 DOI: 10.1021/ja970810j Supporting Info

Chiral Solvation as a Means to Quantitatively Characterize Preferential Solvation of a Helical Polymer in Mixed Solvents Chetan A. Khatri, Yevgenia Pavlova, Mark M. Green, and Herbert Morawetz pp 6991–6995 DOI: 10.1021/ja9709637

Binuclear Ruthenium−Manganese Complexes as Simple Artificial Models for Photosystem II in Green Plants Licheng Sun, Helena Berglund, Roman Davydov, Thomas Norrby, Leif Hammarström, Peter Korall, Anna Börje, Christian Philouze, Katja Berg, Anh Tran, Michael Andersson, Gunnar Stenhagen, Jerker Mårtensson, Mats Almgren, Stenbjörn Styring, and Björn Åkermark pp 6996–7004 DOI: 10.1021/ja962511k

Speciation in Vanadium Bioinorganic Systems. 4. Interactions between Vanadate, Adenosine, and ImidazoleAn Aqueous Potentiometric and 51V NMR Study Katarina Elvingson, Debbie C. Crans, and Lage Pettersson pp 7005–7012 DOI: 10.1021/ja9630497

Mid-Infrared Spectrum of [Ru(bpy)3]2+* Kristin M. Omberg, Jon R. Schoonover, Joseph A. Treadway, Robert M. Leasure, R. Brian Dyer, and Thomas J. Meyer pp 7013–7018 DOI: 10.1021/ja970511u

Epitaxial Growth of Highly Luminescent CdSe/CdS Core/Shell Nanocrystals with Photostability and Electronic Accessibility Xiaogang Peng, Michael C. Schlamp, Andreas V. Kadavanich, and A. P. Alivisatos pp 7019–7029 DOI: 10.1021/ja970754m

Synthesis, Reactivity, and Catalytic Behavior of Iron/Zinc-Containing Species Involved in Oxidation of Hydrocarbons under Gif-Type Conditions Bharat Singh, Jeffrey R. Long, Fabrizia Fabrizi de Biani, Dante Gatteschi, and Pericles Stavropoulos pp 7030–7047 DOI: 10.1021/ja970562r Supporting Info

Does π−σ−π Through-Bond Coupling Significantly Increase C−C Bond Lengths? Thomas R. Battersby, Russell VernonClark,and Jay S. Siegel pp 7048–7054 DOI: 10.1021/ja9622315

Isomer-Specific Trends with Charge State in Gas-Phase Reactions of Fullerene Cations, C60x+ (x = 1−3), with Nitromethane and Methyl Nitrite:  Polymethoxylation of C60 Dications Vladimir Baranov, Alan C. Hopkinson, and Diethard K. Bohme pp 7055–7060 DOI: 10.1021/ja962530u

An Experimental Comparison of Vibrational Circular Dichroism and Raman Optical Activity with 1-Amino-2-propanol and 2-Amino-1-propanol as Model Compounds Cheok N. Tam, Petr Bour, and Timothy A. Keiderling pp 7061–7064 DOI: 10.1021/ja963239h

An ab Initio Computational Molecular Orbital Study of Radical, Protonated Radical (Radical Cation), and Carbocation Species That Have Been Proposed in Mechanisms for the Transfer Process in the Enzyme−Coenzyme B12-Catalyzed Dehydration of 1,2-Dihydroxyethane Philip George, Jenny P. Glusker, and Charles W. Bock pp 7065–7074 DOI: 10.1021/ja963424v Supporting Info

Magnetic Evidence for the Aromaticity and Antiaromaticity of Charged Fluorenyl, Indenyl, and Cyclopentadienyl Systems Haijun Jiao, Paul von Ragué Schleyer, Yirong Mo, Michael A. McAllister, and Thomas T. Tidwell pp 7075–7083 DOI: 10.1021/ja970380x Supporting Info

Langmuir−Blodgett Films of Known Layered Solids:  Preparation and Structural Properties of Octadecylphosphonate Bilayers with Divalent Metals and Characterization of a Magnetic Langmuir−Blodgett Film Candace T. Seip, Garrett E. Granroth, Mark W. Meisel, and Daniel R. Talham pp 7084–7094 DOI: 10.1021/ja963598c Supporting Info

Unrestrained Molecular Dynamics of Photodamaged DNA in Aqueous Solution Tami I. Spector, Thomas E. Cheatham III, and Peter A. Kollman pp 7095–7104 DOI: 10.1021/ja964372c

Studies of the Solid/Solution “Interfacial” Dealumination of Kaolinite in HCl(aq) Using Solid-State 1H CRAMPS and SP/MAS 29Si NMR Spectroscopy John J. Fitzgerald, Abdullatef I. Hamza, Charles E. Bronnimann, and Steven F. Dec pp 7105–7113 DOI: 10.1021/ja970305m

Solid State 15N and 13C NMR Study of Several Metal 5,10,15,20-Tetraphenylporphyrin Complexes Mark Strohmeier, Anita M. Orendt, Julio C. Facelli, Mark S. Solum, Ronald J. Pugmire, Robert W. Parry, and David M. Grant pp 7114–7120 DOI: 10.1021/ja970447g

Magnitudes and Relative Orientations of Chemical Shielding, Dipolar and J Coupling Tensors for Isolated 31P−31P Spin Pairs Determined by Iterative Fitting of 31P MAS NMR Spectra Stephan Dusold, Elke Klaus, Angelika Sebald, Mads Bak, and Niels Chr. Nielsen pp 7121–7129 DOI: 10.1021/ja970890r

Resonance Raman Probing of the Interaction between Dipyridophenazine Complexes of Ru(II) and DNA Colin G. Coates, Luc Jacquet, John J. McGarvey, Steven E. J. Bell, Ala H. R. Al-Obaidi, and John M. Kelly pp 7130–7136 DOI: 10.1021/ja970064i

Relationship between Heterogeneous and Homogeneous Kinetics of Electron Transfer between Transition Metal Complexes in Aqueous Solution:  Volumes of Activation Yansong Fu and Thomas W. Swaddle pp 7137–7144 DOI: 10.1021/ja9709381 Supporting Info

Organization of Chiral Pyridine-Containing Bisbipyridino Podands by Cu(I) and Their Enantiomeric Recognition of (R)- and (S)-α-Phenylethylammonium Perchlorates Yoichi Habata, Jerald S. Bradshaw, Xian X. Zhang, and Reed M. Izatt pp 7145–7146 DOI: 10.1021/ja971028m

Transition State Polarization Effects and Steric Effects in the Kinetics of Alkoxycarbonyl-Substituted Radical Fragmentations Martin Newcomb, John H. Horner, and Calvin J. Emanuel pp 7147–7148 DOI: 10.1021/ja971141c

Molecular Precursors to Vanadyl Pyrophosphate and Vanadyl Phosphite Norman Herron, David L. Thorn, Richard L. Harlow, and George W. Coulston pp 7149–7150 DOI: 10.1021/ja970179m Supporting Info

Mutational Analysis of Backbone Hydrogen Bonds in Staphylococcal Nuclease Eli Chapman, Jon S. Thorson, and Peter G. Schultz pp 7151–7152 DOI: 10.1021/ja970826+

Catalytic Enantioselective Mannich-Type Reactions Using a Novel Chiral Zirconium Catalyst Haruro Ishitani, Masaharu Ueno, and Shū Kobayashi pp 7153–7154 DOI: 10.1021/ja970498d Supporting Info

Direct Crystallographic Comparison of P−B and N−B π-Bonding:  Structural Studies of Diphenylphosphido- and Diphenylamidoboratabenzene Diego A. Hoic, Marcello DiMare, and Gregory C. Fu pp 7155–7156 DOI: 10.1021/ja963657m Supporting Info

Ring-Opening Metathesis. A Ruthenium Catalyst Caught in the Act John A. Tallarico, Peter J. Bonitatebus, Jr., and Marc L. Snapper pp 7157–7158 DOI: 10.1021/ja971285r Supporting Info

Stereocontrolled Synthesis of the Tetracyclic Core of the Bisguanidine Alkaloids Palau'amine and Styloguanidine Larry E. Overman, Bruce N. Rogers, John E. Tellew, and William C. Trenkle pp 7159–7160 DOI: 10.1021/ja9712985 Supporting Info

Influence of Phospholipid Chirality on Nearest-Neighbor Interactions within Fluid Bilayers Minoru Inagaki, Motonari Shibakami, and Steven L. Regen pp 7161–7162 DOI: 10.1021/ja970687w Supporting Info

Directed Intermolecular [4 + 2] Cycloaddition of Unactivated 1,3-Diene Substrates with High Regio- and Stereoselectivities Masahiro Murakami, Kenichiro Itami, and Yoshihiko Ito pp 7163–7164 DOI: 10.1021/ja970626y Supporting Info

Asymmetric Diels−Alder Reactions of Chiral 1-Amino-3-siloxy-1,3-butadiene:  Application to the Enantioselective Synthesis of (−)-α-Elemene Sergey A. Kozmin and Viresh H. Rawal pp 7165–7166 DOI: 10.1021/ja971272d Supporting Info

Site-Selective Processes:  The Role of Environment in the Control of Proton Transfer Processes in Crystalline Systems of 2-(2,4-Dinitrobenzyl)-3-methylpyridine Y. Eichen, M. Botoshansky, U. Peskin, M. Scherl, D. Haarer, and S. Khatib pp 7167–7168 DOI: 10.1021/ja9637614

Mapping an Antibody Binding Site by Nuclear Decay Rakesh Mogul and Claude F. Meares pp 7169–7170 DOI: 10.1021/ja971352h

Accurate Calculations of Reactivities and Diastereoselectivities in Complex Molecules:  An AM1 Study of 1,3-Dioxolan-4-ones and Related Oxygen Heterocycles J. Am. Chem. Soc. 1995, 117, 607−614 Athelstan L. J. Beckwith and Andreas A. Zavitsas p 7171 DOI: 10.1021/ja975409b

pro Fit 5.01 for the Mac Cherwell Scientific Publishing, Inc., 744 San Antonio Road #27 A, Palo Alto, CA 94303. Tel:  415/852-0720. Fax:  415/852-0723. List price $399.00; educational discounted price $299.00. 1997. Craig T. Martin pp 7171–7172 DOI: 10.1021/ja965929r

Dynamics of Solutions and Fluid Mixtures by NMR Edited by Jean-Jacques Delpuech (Université Henri Poincare). Wiley:  New York. 1995. xi + 587 pp. $79.95. ISBN 0-471-95411-X. John Norman Atherton p 7172 DOI: 10.1021/ja955294g

Annual Review of Biophysics and Biomolecular Structure, Volume 25 Edited by Robert M. Stroud (University of CaliforniaSan Francisco). Annual Reviews, Inc.:  Palo Alto. 1996. xii + 492 pp. $67.00. ISBN 0-8243-1825-0. p 7172 DOI: 10.1021/ja965690e

Issue 31

Aminothiotyrosine Disulfide, an Optical Trigger for Initiation of Protein Folding Helen S. M. Lu, Martin Volk, Yuriy Kholodenko, Edward Gooding, Robin M. Hochstrasser, and William F. DeGrado pp 7173–7180 DOI: 10.1021/ja970567o

Infrared-Spectroelectrochemical Characterization of the [NiFe] Hydrogenase of Desulfovibrio gigas Antonio L. de Lacey, E. Claude Hatchikian, Anne Volbeda, Michel Frey, Juan Carlos Fontecilla-Camps, and Victor M. Fernandez pp 7181–7189 DOI: 10.1021/ja963802w

Theoretical Studies of Ethylene Polymerization Reactions Catalyzed by Zirconium and Titanium Chelating Alkoxide Complexes Robert D. J. Froese, Djamaladdin G. Musaev, Toshiaki Matsubara, and Keiji Morokuma pp 7190–7196 DOI: 10.1021/ja970861g

Template-Directed Synthesis Using the Heterogeneous Templates Produced by Montmorillonite Catalysis. A Possible Bridge Between the Prebiotic and RNA Worlds Gözen Ertem and James P. Ferris pp 7197–7201 DOI: 10.1021/ja970422h Supporting Info

A New Class of Polyintercalating Molecules R. Scott Lokey, Yan Kwok, Vladimir Guelev, Christopher J. Pursell, Laurence H. Hurley, and Brent L. Iverson pp 7202–7210 DOI: 10.1021/ja9706108 Supporting Info

Self-Assembled Monolayers of 7-(10-Thiodecoxy)coumarin on Gold:  Synthesis, Characterization, and Photodimerization Weijin Li, Vincent Lynch, Heike Thompson, and Marye Anne Fox pp 7211–7217 DOI: 10.1021/ja970633m Supporting Info

Density Functional Theory-Based Molecular Dynamics Simulation of Acid-Catalyzed Chemical Reactions in Liquid Trioxane Alessandro Curioni, Michiel Sprik, Wanda Andreoni, Heinz Schiffer, Jürg Hutter, and Michele Parrinello pp 7218–7229 DOI: 10.1021/ja970935o

A General Synthetic Entry to Strychnos Alkaloids of the Curan Type via a Common 3a-(2-Nitrophenyl)hexahydroindol-4-one Intermediate. Total Syntheses of (±)- and (−)-Tubifolidine, (±)-Akuammicine, (±)-19,20-Dihydroakuammicine, (±)-Norfluorocurarine, (±)-Echitamidine, and (±)-20-Epilochneridine1 Josep Bonjoch, Daniel Solé, Silvina García-Rubio, and Joan Bosch pp 7230–7240 DOI: 10.1021/ja970347a Supporting Info

Chemistry of Unique Chiral Olefins. 1. Synthesis, Enantioresolution, Circular Dichroism, and Theoretical Determination of the Absolute Stereochemistry of trans- and cis-1,1‘,2,2‘,3,3‘,4,4‘-Octahydro-4,4‘-biphenanthrylidenes Nobuyuki Harada, Akira Saito, Nagatoshi Koumura, Hisashi Uda, Ben de Lange, Wolter F. Jager, Hans Wynberg, and Ben L. Feringa pp 7241–7248 DOI: 10.1021/ja970667u Supporting Info

Chemistry of Unique Chiral Olefins. 2. Unexpected Thermal Racemization of cis-1,1‘,2,2‘,3,3‘,4,4‘-Octahydro-4,4‘- biphenanthrylidene Nobuyuki Harada, Akira Saito, Nagatoshi Koumura, D. Christopher Roe, Wolter F. Jager, Robert W. J. Zijlstra, Ben de Lange, and Ben L. Feringa pp 7249–7255 DOI: 10.1021/ja970668m Supporting Info

Chemistry of Unique Chiral Olefins. 3. Synthesis and Absolute Stereochemistry of trans- and cis-1,1‘,2,2‘,3,3‘,4,4‘- Octahydro-3,3‘-dimethyl-4,4‘-biphenanthrylidenes Nobuyuki Harada, Nagatoshi Koumura, and Ben L. Feringa pp 7256–7264 DOI: 10.1021/ja970669e Supporting Info

Dimesityldioxirane Wolfram Sander, Kerstin Schroeder, Sengodagounder Muthusamy, Andreas Kirschfeld, Wilhelm Kappert, Roland Boese, Elfi Kraka, Carlos Sosa, and Dieter Cremer pp 7265–7270 DOI: 10.1021/ja964280n Supporting Info

Lifetimes of Imidinium Ions in Aqueous Solution Kevin N. Dalby and William P. Jencks pp 7271–7280 DOI: 10.1021/ja970628i

Molecular Recognition of Ubiquinone Analogues. Specific Interaction between Quinone and Functional Porphyrin via Multiple Hydrogen Bonds Takashi Hayashi, Takashi Miyahara, Norihiro Koide, Yukitoshi Kato, Hideki Masuda, and Hisanobu Ogoshi pp 7281–7290 DOI: 10.1021/ja9711526 Supporting Info

The Albatrossenes:  Large, Cleft-Containing, Polyphenyl Polycyclic Aromatic Hydrocarbons Ling Tong, Douglas M. Ho, Nancy J. Vogelaar, Clarence E. Schutt, and Robert A. Pascal, Jr. pp 7291–7302 DOI: 10.1021/ja971261k Supporting Info

Photocycloaddition of Cyclic 1,3-Diones to C60 Anton W. Jensen, Anthony Khong, Martin Saunders, Steven R. Wilson, and David I. Schuster pp 7303–7307 DOI: 10.1021/ja962509t Supporting Info

Reactivity of Singlet and Triplet Arylnitrenes:  Temperature-Dependent Photodecomposition of 1-(2-Azidophenyl)-3,5-dimethylpyrazole Angelo Albini, Gianfranco Bettinetti, and Giovanna Minoli pp 7308–7315 DOI: 10.1021/ja970588i

Demonstration of the Role of Scission of the Proximal Histidine−Iron Bond in the Activation of Soluble Guanylyl Cyclase through Metalloporphyrin Substitution Studies Elizabeth A. Dierks, Songzhou Hu, Kathleen M. Vogel, Anita E. Yu, Thomas G. Spiro, and Judith N. Burstyn pp 7316–7323 DOI: 10.1021/ja9603057

Cr−CO Photodissociation in Cr(CO)6:  Reassessment of the Role of Ligand-Field Excited States in the Photochemical Dissociation of Metal−Ligand Bonds C. Pollak, A. Rosa, and E. J. Baerends pp 7324–7329 DOI: 10.1021/ja970592u

Kinetic and Theoretical Investigation of the Gas-Phase Ozonolysis of Isoprene:  Carbonyl Oxides as an Important Source for OH Radicals in the Atmosphere Roland Gutbrod, Elfi Kraka, Ralph N. Schindler, and Dieter Cremer pp 7330–7342 DOI: 10.1021/ja970050c Supporting Info

Reactivity Patterns of Carbon Cluster Cations with Nitrogen-Containing Molecules Boguslav P. Pozniak and Robert C. Dunbar pp 7343–7349 DOI: 10.1021/ja9602096

A Spectroscopic and Theoretical Study of the Reactions of Group 6 Metal Atoms with Carbon Dioxide Philip F. Souter and Lester Andrews pp 7350–7360 DOI: 10.1021/ja971038n

Multiple-Quantum Coherence Dramatically Enhances the Sensitivity of CH and CH2 Correlations in Uniformly 13C-Labeled RNA J. P. Marino, J. L. Diener, P. B. Moore, and C. Griesinger pp 7361–7366 DOI: 10.1021/ja964379u

Adjusting the Third-Order Nonlinear Optical Properties of a Conjugated Polymer Film S. A. Hambir, D. Wolfe, G. J. Blanchard, and G. L. Baker pp 7367–7373 DOI: 10.1021/ja9705194

Li and Na Diffusion in TiO2 from Quantum Chemical Theory versus Electrochemical Experiment Sten Lunell, Arvids Stashans, Lars Ojamäe, Henrik Lindström, and Anders Hagfeldt pp 7374–7380 DOI: 10.1021/ja9708629

Quenching of Photoluminescence from Porous Silicon by Aromatic Molecules Jae Hee Song and Michael J. Sailor pp 7381–7385 DOI: 10.1021/ja971209o

A Long-Wavelength Fluorescent Chemodosimeter Selective for Cu(II) Ion in Water Virginie Dujols, Francis Ford, and Anthony W. Czarnik pp 7386–7387 DOI: 10.1021/ja971221g Supporting Info

Toward Bioelectronics:  Specific DNA Recognition Based on an Oligonucleotide-Functionalized Polypyrrole H. Korri-Youssoufi, F. Garnier, P. Srivastava, P. Godillot, and A. Yassar pp 7388–7389 DOI: 10.1021/ja964261d

Computational Evidence for a Metastable Polar Isomer of Beryllium Borohydride Jamal C. Saeh and John F. Stanton pp 7390–7391 DOI: 10.1021/ja971124n Supporting Info

Effect of the Daunorubicin dpsH Gene on the Choice of Starter Unit and Cyclization Pattern Reveals That Type II Polyketide Synthases Can Be Unfaithful yet Intriguing Martin Gerlitz, Guido Meurer, Evelyn Wendt-Pienkowski, Krishnamurthy Madduri, and C. Richard Hutchinson pp 7392–7393 DOI: 10.1021/ja970946h Supporting Info

Stereochemistry and Isotope Effects of the [2 + 2] Photocycloadditions of Arylalkenes to C60. A Stepwise Mechanism Georgios Vassilikogiannakis and Michael Orfanopoulos pp 7394–7395 DOI: 10.1021/ja970916e Supporting Info

Pyruvate Formate-Lyase Activating Enzyme Is an Iron−Sulfur Protein Joan B. Broderick, Randall E. Duderstadt, Daniel C. Fernandez, Kristi Wojtuszewski, Timothy F. Henshaw, and Michael K. Johnson pp 7396–7397 DOI: 10.1021/ja9711425

The First η2-CH2Cl2 Adduct of Ru(II):[RuH(η2-CH2Cl2)(CO)(PtBu2Me)2][BAr‘4] (Ar‘ = 3,5-C6H3(CF3)2) and Its RuH(CO)(PtBu2Me)2+ Precursor Dejian Huang, John C. Huffman, John C. Bollinger, Odile Eisenstein, and Kenneth G. Caulton pp 7398–7399 DOI: 10.1021/ja970240n Supporting Info

First Observation of Intramolecular Charge-Transfer Emission from Jet-Cooled (p-Cyanophenyl)pentamethyldisilane in an Isolated Molecular Condition Yuko Tajima, Haruki Ishikawa, Takashi Miyazawa, Mitsuo Kira, and Naohiko Mikami pp 7400–7401 DOI: 10.1021/ja971445z

Highly Selective Lewis Acid Catalyzed Diels−Alder Reactions of Acyclic (Z)-1,3-Dienes William R. Roush and David A. Barda pp 7402–7403 DOI: 10.1021/ja971070h Supporting Info

Structural Distortion in Five-Coordinate Nitrosyl Iron Porphyrins. Axial Ligand Tilting and Its Effect on Equatorial Geometry Mary K. Ellison and W. Robert Scheidt pp 7404–7405 DOI: 10.1021/ja971140k Supporting Info

Radical Reactions with Alkyl and Fluoroalkyl (Fluorous) Tin Hydride Reagents in Supercritical CO2 Sabine Hadida, Michael S. Super, Eric J. Beckman, and Dennis P. Curran pp 7406–7407 DOI: 10.1021/ja971120i Supporting Info

Structure and Chemistry of Acetoxybenziodazole. Acid-Catalyzed Rearrangement of Benziodazoles to 3-Iminobenziodoxoles Viktor V. Zhdankin, Ruslan M. Arbit, Marc McSherry, Brian Mismash, and Victor G. Young, Jr. pp 7408–7409 DOI: 10.1021/ja971606z Supporting Info

New Radical Allylation Reaction of Iodides Frédéric Le Guyader, Béatrice Quiclet-Sire, Stéphanie Seguin, and Samir Z. Zard pp 7410–7411 DOI: 10.1021/ja9708878 Supporting Info

Singlet and Triplet States Are Degenerate in 2,3-Dimethylenecyclohexane-1,4-diyl Kenji Matsuda and Hiizu Iwamura pp 7412–7413 DOI: 10.1021/ja970843z

Synthesis of Oligosaccharide-Polylysine Conjugates:  A Well Characterized Sialyl Lewisa Polymer for ELISA Gebhard Thoma, John L. Magnani, Reinhold Öhrlein, Beat Ernst, Franz Schwarzenbach, and Rudolf O. Duthaler pp 7414–7415 DOI: 10.1021/ja970657t

Thermal Methods in Petroleum Analysis By Heinz Kopsch (Technical University of Clausthal). VCH:  New York. 1995. xii + 515 pp. $170.00. ISBN 3-527-28740-X. p 7416 DOI: 10.1021/ja965598i

Desk Reference for Organic Chemists By Michael B. East (FAR Research, Florida) and David J. Ager (NSC Technologies, Illinois). Krieger:  Malabar. 1995. 496 pp. $64.50. ISBN 0-89464-818-7. p 7416 DOI: 10.1021/ja965607n

Handbook of Plastic and Rubber Additives By Michael and Irene Ash. Gower:  Brookfield. 1995. xxii + 1322 pp. $350.00. ISBN 0-566-07594-6. p 7416 DOI: 10.1021/ja965611z

Unimolecular Reaction Dynamics:  Theory and Experiments By Tomas Baer (University of North Carolina) and William L. Hase (Wayne State University). Oxford University Press:  New York. 1996. vi + 438 pp. $75.00. ISBN 0-19-507494-7. Eric A. Gislason p 7416 DOI: 10.1021/ja965785g

Issue 32

Probing the Electronic Structure of Metallocarbohedrenes:  M8C12 (M = Ti, V, Cr, Zr, Nb) San Li, Hongbin Wu, and Lai-Sheng Wang pp 7417–7422 DOI: 10.1021/ja9710159

A Chemical Method for Site-Specific Modification of RNA:  The Convertible Nucleoside Approach Charles R. Allerson, Swaine L. Chen, and Gregory L. Verdine pp 7423–7433 DOI: 10.1021/ja962858n

Global Observation of Hydrogen/Deuterium Isotope Effects on Bidirectional Catalytic Electron Transport in an Enzyme:  Direct Measurement by Protein-Film Voltammetry Judy Hirst, Brian A. C. Ackrell, and Fraser A. Armstrong pp 7434–7439 DOI: 10.1021/ja9631413

Investigation of Flavin-Containing DNA-Repair Model Compounds Robert Epple, Ernst-Udo Wallenborn, and Thomas Carell pp 7440–7451 DOI: 10.1021/ja964097u

Exchange Interaction Mediated by O−H···O Hydrogen Bonds:  Synthesis, Structure, and EPR Study of the Paramagnetic Organometallic Carboxylic Acid (η7-C7H7)V(η5-C5H4COOH) Ch. Elschenbroich, O. Schiemann, O. Burghaus, and K. Harms pp 7452–7457 DOI: 10.1021/ja964445s Supporting Info

Dynamics of Bengal Rose Encapsulated in the Meijer Dendrimer Box Paul Miklis, Tahir Çain, and William A. Goddard III pp 7458–7462 DOI: 10.1021/ja964230i

Molecular Dynamics Simulations of the d(T·A·T) Triple Helix George C. Shields, Charles A. Laughton, and Modesto Orozco pp 7463–7469 DOI: 10.1021/ja970601z

Chemistry of anti-o,o‘-Dibenzene Taehee Noh, Hong Gan, Sharon Halfon, Bruce J. Hrnjez, and Nien-chu C. Yang pp 7470–7482 DOI: 10.1021/ja970199o

Synthesis of Medium Ring Ethers. 5. The Synthesis of (+)-Laurencin Jonathan W. Burton, J. Stephen Clark, Sam Derrer, Thomas C. Stork, Justin G. Bendall, and Andrew B. Holmes pp 7483–7498 DOI: 10.1021/ja9709132 Supporting Info

Substituted Oxocanes by Intramolecular Allylboration Reactions. Entry to an Efficient Synthesis of (+)-Laurencin Jochen Krüger and Reinhard W. Hoffmann pp 7499–7504 DOI: 10.1021/ja970914u

A Novel Approach for the Stabilization and Structural Characterization of Group 13 Organometallic Hydroxides:  The Way to Well Defined Crystalline Methylalumoxanes Jens Storre, Christoph Schnitter, Herbert W. Roesky, Hans-Georg Schmidt, Mathias Noltemeyer, Roland Fleischer, and Dietmar Stalke pp 7505–7513 DOI: 10.1021/ja970458+ Supporting Info

Density Functional Theory Study of Transition-Metal Compounds Containing Metal−Metal Bonds. 1. Molecular Structures of Dinuclear Compounds by Complete Geometry Optimization F. Albert Cotton and Xuejun Feng pp 7514–7520 DOI: 10.1021/ja9705351

Remarkable Stability of (η5-C5H5)Re(CO)2L (L = n-Heptane, Xe, and Kr):  A Time-Resolved Infrared Spectroscopic Study of (η5-C5H5)Re(CO)3 in Conventional and Supercritical Fluid Solution Xue-Zhong Sun, David C. Grills, Sergei M. Nikiforov, Martyn Poliakoff, and Michael W. George pp 7521–7525 DOI: 10.1021/ja962939j

Electrochemical Generation of Rhodium Porphyrin Hydrides. Catalysis of Hydrogen Evolution Valérie Grass, Doris Lexa, and Jean-Michel Savéant pp 7526–7532 DOI: 10.1021/ja964100+

Experimental and Theoretical Approach to Hydrogen-Bonded Diastereomeric Interactions in a Model Complex Philippe H. Hünenberger, Josef K. Granwehr, Jean-Nicolas Aebischer, Nagwa Ghoneim, Edwin Haselbach, and Wilfred F. van Gunsteren pp 7533–7544 DOI: 10.1021/ja970503d

A Density Functional Study of 2-Lithio-1,3-dithiane and 2-Lithio-2-phenyl-1,3-dithiane:  Conformational Preference of the C−Li Bond and Structural Analysis Gabriel Cuevas and Eusebio Juaristi pp 7545–7549 DOI: 10.1021/ja9703943 Supporting Info

Molecular Recognition by a Silica-Bound Fullerene Derivative Alberto Bianco, Francesco Gasparrini, Michele Maggini, Domenico Misiti, Alessandra Polese, Maurizio Prato, Gianfranco Scorrano, Claudio Toniolo, and Claudio Villani pp 7550–7554 DOI: 10.1021/ja970502l Supporting Info

Five-Membered Ring Rotations, Pseudorotations, and Hydrogen Bond Exchange Dynamics in the Solid State Studied by NMR Spectroscopy Frank G. Riddell, Kenneth S. Cameron, Susan A. Holmes, and John H. Strange pp 7555–7560 DOI: 10.1021/ja970851f

Characterization of Low-Barrier Hydrogen Bonds. 1. Microsolvation Effects. An ab Initio and DFT Investigation Yongping Pan and Michael A. McAllister pp 7561–7566 DOI: 10.1021/ja9709684 Supporting Info

Gas-Phase Dehydrogenation of Saturated and Aromatic Cyclic Hydrocarbons by Ptn+ (n = 1−4) George S. Jackson, Forest M. White, Cynthia L. Hammill, Ronald J. Clark, and Alan G. Marshall pp 7567–7572 DOI: 10.1021/ja970218u

Proton-Transport Catalysis:  A Systematic Study of the Rearrangement of the Isoformyl Cation to the Formyl Cation Andrew J. Chalk and Leo Radom pp 7573–7578 DOI: 10.1021/ja971055c Supporting Info

A Room Temperature Stable 1,3-Diphosphaallyl Radical Yves Canac, Antoine Baceiredo, Wolfgang W. Schoeller, Didier Gigmes, and Guy Bertrand pp 7579–7580 DOI: 10.1021/ja970584d

Copper-Containing Semiflexible Hydroxypolyazomethines:  Metallomesogenic Units Inducing Enhanced Mechanical Properties Pilar Cerrada, Luis Oriol, Milagros Piñol, and José Luis Serrano pp 7581–7582 DOI: 10.1021/ja970558f

Direct Observation of Cumyl Cations in Nonacidic Zeolites. Absolute Lifetime and Reactivity with Coabsorbed Alcohols Frances L. Cozens, Melanie O'Neill, and Norman P. Schepp pp 7583–7584 DOI: 10.1021/ja970690f

Carbene Migration in a Cluster Complex. Observation of an Intermediate Containing a μ3-CH2 Ligand F. Holger Försterling and Craig E. Barnes pp 7585–7586 DOI: 10.1021/ja9643026 Supporting Info

Conformationally-Dependent Free Energies of Solvation. An Explanation for the Large Group-Transfer Potential of Acetylcarnitine Víctor M. Rosas-García and Richard D. Gandour pp 7587–7588 DOI: 10.1021/ja963804g

Identification of a Small Molecule Inhibitor of the IL-2/IL-2Rα Receptor Interaction Which Binds to IL-2 Jefferson W. Tilley, Li Chen, David C. Fry, S. Donald Emerson, Gordon D. Powers, Denise Biondi, Tracey Varnell, Richard Trilles, Robert Guthrie, Francis Mennona, Gerry Kaplan, Ronald A. LeMahieu, Mathew Carson, Ru-Jen Han, C.-M. Liu, Robert Palermo, and Grace Ju pp 7589–7590 DOI: 10.1021/ja970702x Supporting Info

Diastereoselective Cyclopropanation of Simple Alkenes by 2-Phenyl- and 2-Ferrocenylalkenyl Fischer Carbene Complexes of Chromium José Barluenga, Alvaro Fernández-Acebes, Andrés A. Trabanco, and Josefa Flórez pp 7591–7592 DOI: 10.1021/ja970924v Supporting Info

Stereoselectivity in Molecule−Surface Reactions:  Adsorption of Ethylene on the Silicon(001) Surface Hongbing Liu and Robert J. Hamers pp 7593–7594 DOI: 10.1021/ja971452n

Nucleophilic α-Addition to Alkynoates. A Synthesis of Dehydroamino Acids Barry M. Trost and Gregory R. Dake pp 7595–7596 DOI: 10.1021/ja971238z Supporting Info

Direct Glycosylations with 1-Hydroxy Glycosyl Donors using Trifluoromethanesulfonic Anhydride and Diphenyl Sulfoxide Brian A. Garcia, Jennifer L. Poole, and David Y. Gin pp 7597–7598 DOI: 10.1021/ja971067y Supporting Info

Production and Incorporation of 15N, 13C, 2H (1H-δ1 Methyl) Isoleucine into Proteins for Multidimensional NMR Studies Kevin H. Gardner and Lewis E. Kay pp 7599–7600 DOI: 10.1021/ja9706514 Supporting Info

Direct Observation of the Electron-Donating Property of the 5,6-Dihydro-1,4-dithiin-2,3-dithiolate (dddt) Ligands in Square Planar M(dddt)2 Complexes (M = Ni, Pd, Pt, and Au) H. Hau Wang and Shannon B. FoxEduard B. Yagubskii, Lyudmila A. Kushch, and Alexander I. KotovMyung-Hwan Whangbo pp 7601–7602 DOI: 10.1021/ja9704747 Supporting Info

Zinc Coordination, Asymmetry, and Allostery of the Human Insulin Hexamer Mark L. Brader pp 7603–7604 DOI: 10.1021/ja970324w

A Light-Driven Molecular Shuttle Based on a Rotaxane Hiroto Murakami, Atsushi Kawabuchi, Kengo Kotoo, Masashi Kunitake, and Naotoshi Nakashima pp 7605–7606 DOI: 10.1021/ja971438a

Cyclobutenedione Derivatives on Solid Support:  Toward Multiple Core Structure Libraries Paul A. Tempest and Robert W. Armstrong pp 7607–7608 DOI: 10.1021/ja970284w Supporting Info

Multiple Bonding of Titanium and Vanadium to the Heavier Chalcogens:  Syntheses and Structures of the Terminal Selenido and Tellurido Complexes [η4-Me8taa]ME (M = Ti, V; E = Se, Te) Jennifer L. Kisko, Tony Hascall, and Gerard Parkin pp 7609–7610 DOI: 10.1021/ja971043r Supporting Info

Sequence Specific DNA Cleavage by Conjugates of Benzotriazoles and Minor Groove Binders Sofia M. Touami, Clara C. Poon, and Paul A. Wender pp 7611–7612 DOI: 10.1021/ja971042z Supporting Info

Dendrimers Containing Organometallic Moieties Electronically Communicated Isabel Cuadrado, Carmen M. Casado, Beatriz Alonso, Moisés Morán, José Losada, and Vitaly Belsky pp 7613–7614 DOI: 10.1021/ja971496w Supporting Info

Synthesis of Heterocycles Using Zirconium-Catalyzed Asymmetric Diene Cyclization Yousuke Yamaura, Masaru Hyakutake, and Miwako Mori pp 7615–7616 DOI: 10.1021/ja964462h Supporting Info

Observation of an Inverse Kinetic Isotope Effect in a Co(III)-Catalyzed Polymerization of Ethylene Martha J. Tanner, M. Brookhart, and J. M. DeSimone pp 7617–7618 DOI: 10.1021/ja971300s Supporting Info

Issue 33

Nuances of Mechanisms and Their Implications for Evolution of the Versatile β-Lactamase Activity:  From Biosynthetic Enzymes to Drug Resistance Factors Alexey Bulychev, Irina Massova, Kazuyuki Miyashita, and Shahriar Mobashery pp 7619–7625 DOI: 10.1021/ja963708f Supporting Info

Guanine Specific DNA Cleavage by Photoirradiation of Dibenzoyldiazomethane−Oligonucleotide Conjugates Kazuhiko Nakatani, Junya Shirai, Shinsuke Sando, and Isao Saito pp 7626–7635 DOI: 10.1021/ja970598j

Recognition of Seven Base Pair Sequences in the Minor Groove of DNA by Ten-Ring Pyrrole−Imidazole Polyamide Hairpins James M. Turner, Eldon E. Baird, and Peter B. Dervan pp 7636–7644 DOI: 10.1021/ja971208w

Cyclohexenyl and Cyclohexylidene Inhibitors of 3-Dehydroquinate Synthase:  Active Site Interactions Relevant to Enzyme Mechanism and Inhibitor Design Jean-Luc Montchamp and J. W. Frost pp 7645–7653 DOI: 10.1021/ja961771z

Reactions of Ester Derivatives of Carcinogenic N-(4-Biphenylyl)hydroxylamine and the Corresponding Hydroxamic Acid with Purine Nucleosides Sonya A. Kennedy, Michael Novak, and Brent A. Kolb pp 7654–7664 DOI: 10.1021/ja970698p Supporting Info

Solid-Phase Synthesis of Artificial β-Sheets Darren L. Holmes, Eric M. Smith, and James S. Nowick pp 7665–7669 DOI: 10.1021/ja9710971 Supporting Info

Novel Thermotropic Liquid Crystals without a Rigid Core Formed by Amphiphiles Having Phosphonium Ions Akihiko Kanazawa, Osamu Tsutsumi, Tomiki Ikeda, and Yu Nagase pp 7670–7675 DOI: 10.1021/ja963959o

Selective Detection of the Carbohydrate-Bound State of Concanvalin A at the Single Molecule Level James J. La Clair pp 7676–7684 DOI: 10.1021/ja964366g

Regio- and Stereoselective Synthesis of the 1,3-Cyclohexadiene Nucleus by [2 + 2 + 2] Cycloaddition Reactions Catalyzed by Titanium Aryloxide Compounds Eric S. Johnson, Gary J. Balaich, and Ian P. Rothwell pp 7685–7693 DOI: 10.1021/ja970516r Supporting Info

Electrochemical versus Anionic Oxygenation of Azathymine Derivatives Gabor Butora, Josephine W. Reed, Tomas Hudlicky, Larry E. Brammer, Jr., Paul I. Higgs, Dana P. Simmons, and Nina E. Heard pp 7694–7701 DOI: 10.1021/ja9711122

An Acidity Scale for Brönsted Acids Including H3PW12O40 Russell S. Drago, José A. Dias, and Thomas O. Maier pp 7702–7710 DOI: 10.1021/ja9639123

Synthesis of Dimanganese Complexes from the Reduction of Cationic Tricarbonylmanganese Styrene Derivatives Seung Uk Son, Su Seong Lee, and Young Keun Chung pp 7711–7715 DOI: 10.1021/ja970099i Supporting Info

Luminescent Iridium(I) Diethyldithiocarbamate Complexes:  Synthesis, Structure, and Reactivity Including Stereoselective Hydrogen Oxidative Addition Gianfranco Suardi, Brian P. Cleary, Simon B. Duckett, Christopher Sleigh, Melinda Rau, Earl W. Reed, Joost A. B. Lohman, and Richard Eisenberg pp 7716–7725 DOI: 10.1021/ja970208t Supporting Info

Polyporphyrin Thin Films from the Interfacial Polymerization of Mercaptoporphyrins Liqin Wen, Ming Li, and Joseph B. Schlenoff pp 7726–7733 DOI: 10.1021/ja970612s Supporting Info

Mechanism of Carbon−Fluorine Bond Activation by (C5Me5)Rh(PMe3)H2 Brian L. Edelbach and William D. Jones pp 7734–7742 DOI: 10.1021/ja970723r Supporting Info

β-Haloethanol Substrates as Probes for Radical Mechanisms for Galactose Oxidase Rebekka M. Wachter, Michael P. Montague-Smith, and Bruce P. Branchaud pp 7743–7749 DOI: 10.1021/ja9626695

Parent Tricarbollides [nido-7,8,9-C3B8H11]-, nido-7,8,9-C3B8H12, [nido-7,8,10-C3B8H11]-, and Their Derivatives J. Holub, B. Štíbr, D. Hnyk, J. Fusek, I. Císařová, F. Teixidor, C. Viñas, Z. Plzák, and P. v. R. Schleyer pp 7750–7759 DOI: 10.1021/ja971194u Supporting Info

Structural Characterization of Carbon-Supported Platinum−Ruthenium Nanoparticles from the Molecular Cluster Precursor PtRu5C(CO)16 Michael S. Nashner, Anatoly I. Frenkel, David L. Adler, John R. Shapley, and Ralph G. Nuzzo pp 7760–7771 DOI: 10.1021/ja971039f

Dehydrocyclooctatetraene. Photoelectron Spectroscopy of the C8H6 Anion Paul G. Wenthold and W. C. Lineberger pp 7772–7777 DOI: 10.1021/ja970934w

Photoinduced Electron Transfer in Supramolecular Assemblies Composed of One-Shell and Two-Shell Dialkoxybenzene-Tethered Ru(II)−Tris(bipyridine) Derivatives and a Bipyridinium Cyclophane Elke David, Roland Born, Evgeny Kaganer, Ernesto Joselevich, Heinz Dürr, and Itamar Willner pp 7778–7790 DOI: 10.1021/ja9703382

Rapid Optical Switching by Means of Photoinduced Change in Refractive Index of Azobenzene Liquid Crystals Detected by Reflection-Mode Analysis Atsushi Shishido, Osamu Tsutsumi, Akihiko Kanazawa, Takeshi Shiono, Tomiki Ikeda, and Naoto Tamai pp 7791–7796 DOI: 10.1021/ja9706312

Carbonyl Carbon Probe of Local Mobility in 13C,15N-Enriched Proteins Using High-Resolution Nuclear Magnetic Resonance Kwaku T. Dayie and Gerhard Wagner pp 7797–7806 DOI: 10.1021/ja9633880 Supporting Info

Unique Binding of Nitric Oxide to Ferric Nitric Oxide Reductase from Fusarium oxysporum Elucidated with Infrared, Resonance Raman, and X-ray Absorption Spectroscopies Eiji Obayashi, Koki Tsukamoto, Shin-ichi Adachi, Satoshi Takahashi, Masaharu Nomura, Tetsutaro Iizuka, Hirofumi Shoun, and Yoshitsugu Shiro pp 7807–7816 DOI: 10.1021/ja9637816

Planar Boron Heterocycles with Nucleic Acid-Like Hydrogen-Bonding Motifs Michael P. Groziak, Liya Chen, Lin Yi, and Paul D. Robinson pp 7817–7826 DOI: 10.1021/ja963784i Supporting Info

Determination of Dihedral Angles in Peptides through Experimental and Theoretical Studies of α-Carbon Chemical Shielding Tensors J. Heller, D. D. Laws, M. Tomaselli, D. S. King, D. E. Wemmer, A. Pines, R. H. Havlin, and E. Oldfield pp 7827–7831 DOI: 10.1021/ja970124k

Dehydration Studies of a High-Surface-Area Alumina (Pseudo-boehmite) Using Solid-State 1H and 27Al NMR John J. Fitzgerald, Gilberto Piedra, Steven F. Dec, Mark Seger, and Gary E. Maciel pp 7832–7842 DOI: 10.1021/ja970788u

Hydration and Water Exchange of Zinc(II) Ions. Application of Density Functional Theory Michael Hartmann, Timothy Clark, and Rudi van Eldik pp 7843–7850 DOI: 10.1021/ja970483f Supporting Info

Molecular Dynamics Studies of the Hydration of α,α-Trehalose Qiang Liu, R. K. Schmidt, B. Teo, P. A. Karplus, and J. W. Brady pp 7851–7862 DOI: 10.1021/ja970798v

Experimental and Computational Studies of the Structures and Energetics of Cyclooctatetraene and Its Derivatives Shuji Kato, Hack Sung Lee, Roustam Gareyev, Paul G. Wenthold, W. Carl Lineberger, Charles H. DePuy, and Veronica M. Bierbaum pp 7863–7864 DOI: 10.1021/ja971433d

Unusually Strong Binding of a Designed Transition-State Analog to a Base-Excision DNA Repair Protein Li Deng, Orlando D. Schärer, and Gregory L. Verdine pp 7865–7866 DOI: 10.1021/ja970828u Supporting Info

Determination of Through-Bond Carbon−Carbon Connectivities in Solid-State NMR Using the INADEQUATE Experiment Anne Lesage, Céline Auger, Stefano Caldarelli, and Lyndon Emsley pp 7867–7868 DOI: 10.1021/ja971089k

Solvothermal Co-reduction Route to the Nanocrystalline III−V Semiconductor InAs Ya-Dong Li, Xiang-Feng Duan, Yi-Tai Qian, Li Yang, Ming-Rong Ji, and Cheng-Wei Li pp 7869–7870 DOI: 10.1021/ja9707670 Supporting Info

Structural Elucidation of Scyphostatin, an Inhibitor of Membrane-Bound Neutral Sphingomyelinase Masahiro Tanaka, Futoshi Nara, Keiko Suzuki-Konagai, Tsuyoshi Hosoya, and Takeshi Ogita pp 7871–7872 DOI: 10.1021/ja9713385

Metal-Stabilized Quinone and Thioquinone Methides Arkadi Vigalok and David Milstein pp 7873–7874 DOI: 10.1021/ja970795i Supporting Info

The Electrochemistry of Boron-Doped Diamond Films on Single Crystal Diamond in Li+-Based Solid Polymer Electrolyte in Ultrahigh Vacuum Lin-Feng Li, Dana Totir, Barry Miller, Gary Chottiner, Alberto Argoitia, John C. Angus, and Daniel Scherson pp 7875–7876 DOI: 10.1021/ja971322e

In Situ Solid-State NMR Observations of Photocatalytic Surface Chemistry:  Degradation of Trichloroethylene Son-Jong Hwang, Chris Petucci, and Daniel Raftery pp 7877–7878 DOI: 10.1021/ja9703990

Asymmetric Alkylation of β-Ketoesters Barry M. Trost, Rumen Radinov, and Ellen M. Grenzer pp 7879–7880 DOI: 10.1021/ja971523i Supporting Info

Facile Cyclization of Metallacyclobutane on Cu(110) Richard Martel, Alain Rochefort, and Peter H. McBreen pp 7881–7882 DOI: 10.1021/ja9700818

Asymmetric Aldol Additions with Titanium Enolates of Acyloxazolidinethiones:  Dependence of Selectivity on Amine Base and Lewis Acid Stoichiometry Michael T. Crimmins, Bryan W. King, and Elie A. Tabet pp 7883–7884 DOI: 10.1021/ja9716721 Supporting Info

Resolving Resonance Overlap in the NMR Spectra of Proteins from Differential Lanthanide-Induced Shifts Michael Sattler and Stephen W. Fesik pp 7885–7886 DOI: 10.1021/ja971356m Supporting Info

Fluorobenzyl Terminal Residues as Probes of Function in Tris(macrocycle) Channels:  Evidence from NMR and Planar Bilayer Conductance Studies Clare L. Murray, Eric S. Meadows, Oscar Murillo, and George W. Gokel pp 7887–7888 DOI: 10.1021/ja971325r

A New Type of Divalent Niobium Compound:  The First Nb−Nb Triple Bond in a Tetragonal Lantern Environment F. Albert Cotton, John H. Matonic, and Carlos A. Murillo pp 7889–7890 DOI: 10.1021/ja9715152 Supporting Info

Molecular Photoionic AND Logic Gates with Bright Fluorescence and “Off−On” Digital Action A. Prasanna de Silva, H. Q. Nimal Gunaratne, and Colin P. McCoy pp 7891–7892 DOI: 10.1021/ja9712229 Supporting Info

C2-Symmetric Copper(II) Complexes as Chiral Lewis Acids. Catalytic Enantioselective Aldol Additions of Enolsilanes to Pyruvate Esters David A. Evans, Marisa C. Kozlowski, Christopher S. Burgey, and David W. C. MacMillan pp 7893–7894 DOI: 10.1021/ja971521y Supporting Info

Redox-Responsive Molecular Switch for Intramolecular Energy Transfer Joe Otsuki, Masayuki Tsujino, Takeshi Iizaki, Koji Araki, Manabu Seno, Kikuo Takatera, and Tadashi Watanabe pp 7895–7896 DOI: 10.1021/ja970386m Supporting Info

The First Formal Asymmetric Synthesis of Phorbol Paul A. Wender, Kenneth D. Rice, and Mark E. Schnute pp 7897–7898 DOI: 10.1021/ja9706256 Supporting Info

A New Class of Actinide “Sandwich” Complexes:  Synthesis and Molecular Structure of a Thorium Bis(η8-pentalene) Complex F. Geoffrey N. Cloke and Peter B. Hitchcock pp 7899–7900 DOI: 10.1021/ja971437i Supporting Info

Stabilization of Uranyl Cations in Molten Sodium Polysulfide and Formation of the Novel Solid Oxysulfide Na4(UO2)Cu2S4 Anthony C. Sutorik and Mercouri G. Kanatzidis pp 7901–7902 DOI: 10.1021/ja971667x Supporting Info

Analysis of an Organometallic Iron Site Model for the Heterodimetallic Unit of [NiFe]Hydrogenase Donald J. Darensbourg, Joseph H. Reibenspies, Chia-Huei Lai, Way-Zen Lee, and Marcetta Y. Darensbourg pp 7903–7904 DOI: 10.1021/ja971559a Supporting Info

Chemically Modified Surfaces:  Recent Developments By Joseph J. Pesek and Maria T. Matyska (San Jose State University) and Riad R. Abuelafiya (Varian Sample Preparation Products). The Royal Society of Chemistry:  Cambridge. 1996. ix + 146 pp. $89.00. ISBN 0-85404-780-8. Robin L. McCarley p 7905 DOI: 10.1021/ja965694j

The Structure, Energetics and Dynamics of Organic Ions. Series:  Wiley Series in Ion Chemistry & Physics Edited by Tomas Baer (University of North Carolina), Cheuk-Yiu Ng (Ames Laboratory, Iowa State University), and Ivan Powis (University of Nottingham). Wiley:  New York. 1996. xiv + 361 pp. $175.00. ISBN 0-471-96241-4. Tami I. Spector p 7905 DOI: 10.1021/ja965764m

Enzymatic Formation of Isochamigrene, a Novel Sesquiterpene, by Alteration of the Aspartate-Rich Region of Trichodiene Synthase J. Am. Chem. Soc. 1996, 118, 8499−8500 David E. Cane, Qun Xue, James E. Van Epp, and Youla S. Tsantrizos p 7905 DOI: 10.1021/ja975410a

Neuropeptide Protocols. Series:  Methods in Molecular Biology, Volume 73 Edited by G. Brent Irvine and Carvell H. Williams (The Queen's University of BelfastNorthern Ireland). Humana Press:  Totowa, NJ. 1997. xiii + 386 pp. $69.50. ISBN 0-89603-399-6. Jonathan V. Sweedler pp 7905–7906 DOI: 10.1021/ja965790k

VUV and Soft X-Ray Photoionization. Series:  Physics of Atoms and Molecules Edited by Uwe Becker (Fritz-Haber Institute, Berlin) and David A. Shirley (Pennsylvania State University). Plenum Press:  New York and London. 1996. xvi + 667 pp. $149.50. ISBN 0-306-45038-0. Adam P. Hitchcock p 7906 DOI: 10.1021/ja965781b

Classics in Total Synthesis:  Targets, Strategies, Methods By K. C. Nicolaou and E. J. Sorenson. VCH:  Weinheim. 1996. xxii + 798 pp. DM128.00. ISBN 3-527-29284-5. Andrew G. Myers pp 7906–7907 DOI: 10.1021/ja965773v

Advances in Medicinal Chemistry, Vol. 3 Edited by Bruce E. Maryanoff and Cynthia A. Maryanoff (R. W. Johnson Pharmaceutical Research Institute). JAI Press:  Greenwich, CT. 1995. x + 187 pp. $97.50. ISBN 1-55938-798-X. Alice Jean Matuszak p 7907 DOI: 10.1021/ja965521u

Advances in Electron Transfer Chemistry, Volume 5 Edited by Patrick S. Mariano (University of MarylandCollege Park). JAI Press:  Greenwich, CT, 1996. ix + 202pp. $109.50. ISBN 0-76230-062-0. Jay K. Kochi and Stephan M. Hubig p 7907 DOI: 10.1021/ja965759i

Nitrocarbons By Arnold T. Nielsen (Naval Air Warfare Center, Weapons Division California). VCH:  New York. 1995. x + 190 pp. $110.00. ISBN 1-56081-681-3. Jimmie C. Oxley pp 7907–7908 DOI: 10.1021/ja955348m

Deciphering the Chemical Code:  Bonding Across the Periodic Table By Nicolaos D. Epiotis (University of Washington). VCH:  New York. 1996. xlvii + 933 pp. $89.95. ISBN 1-56081-946-4. Thomas R. Cundari p 7908 DOI: 10.1021/ja965712x

Total Reflection X-Ray Fluorescence Analysis. Chemical Analysis, Vol. 140 By Reinhold Klockenkamper (Institut fur Spektrochemie und Angewandte Spektroskopie-Dortmund, Germany). John Wiley:  New York. 1997. xvii + 245 pp. $69.95. ISBN 0-471-30524-3. Reuben Rudman p 7908 DOI: 10.1021/ja975500f

Issue 34

NMR Characterization of Hairpin Polyamide Complexes with the Minor Groove of DNA Rafael Peláez Lamamie de Clairac, Bernhard H. Geierstanger, Milan Mrksich, Peter B. Dervan, and David E. Wemmer pp 7909–7916 DOI: 10.1021/ja964314r Supporting Info

Methods for the Chemical Synthesis and Readout of Self-Encoded Arrays of Polypeptide Analogues Philip E. Dawson, Michael C. Fitzgerald, Tom W. Muir, and Stephen B. H. Kent pp 7917–7927 DOI: 10.1021/ja963122t Supporting Info

The Stereochemical Assignment and Conformational Analysis of the V/W-Ring Juncture of Maitotoxin Laura R. Cook, Hitoshi Oinuma, Marcus A. Semones, and Yoshito Kishi pp 7928–7937 DOI: 10.1021/ja971259t Supporting Info

One-Electron Activation of CO by a Rhodium(II) Porphyrin Bimetalloradical Complex and Concerted Reactions of Two (RhCO)• Units Xiao-Xiang Zhang, Gregory F. Parks, and Bradford B. Wayland pp 7938–7944 DOI: 10.1021/ja962248n

Steroids as Photonic Wires. Z → E Olefin Photoisomerization Involving Ketone Singlet → Triplet Switches by Through-Bond Energy Transfer1,2 Joseph K. Agyin, Larry D. Timberlake, and Harry Morrison pp 7945–7953 DOI: 10.1021/ja963261a Supporting Info

Substrate-Assisted Catalysis Unifies Two Families of Chitinolytic Enzymes Ivo Tews, Anke C. Terwisscha van Scheltinga, Anastassis Perrakis, Keith S. Wilson, and Bauke W. Dijkstra pp 7954–7959 DOI: 10.1021/ja970674i

The Olefin Metathesis Approach to Epothilone A and Its Analogues K. C. Nicolaou, Y. He, D. Vourloumis, H. Vallberg, F. Roschangar, F. Sarabia, S. Ninkovic, Z. Yang, and J. I. Trujillo pp 7960–7973 DOI: 10.1021/ja971109i Supporting Info

Total Syntheses of Epothilones A and B via a Macrolactonization-Based Strategy K. C. Nicolaou, S. Ninkovic, F. Sarabia, D. Vourloumis, Y. He, H. Vallberg, M. R. V. Finlay, and Z. Yang pp 7974–7991 DOI: 10.1021/ja971110h Supporting Info

Applying the Macrocyclic Effect to Smaller Ring Structures. N,N‘-Dimethyl-3,7-diazabicyclo[3.3.1]nonane Nickel(0) Complexes Karl-Josef Haack, Richard Goddard, and Klaus-Richard Pörschke pp 7992–7999 DOI: 10.1021/ja971037v

Mechanism of One-Electron Oxidation of β-, γ-, and δ-Hydroxyalkyl Sulfides. Catalysis through Intramolecular Proton Transfer and Sulfur−Oxygen Bond Formation Krzysztof Bobrowski, Gordon L. Hug, Bronislaw Marciniak, Brian Miller, and Christian Schöneich pp 8000–8011 DOI: 10.1021/ja970683r

Ab Initio Calculations on the Preferred Mode of Ring Opening in Silacyclopropane Per N. Skancke, David A. Hrovat, and Weston Thatcher Borden pp 8012–8014 DOI: 10.1021/ja964384y Supporting Info

Structural Fluctuations of a Cryptophane−Tetramethylammonium Host−Guest System:  A Molecular Dynamics Simulation Paul D. Kirchhoff, Jean-Pierre Dutasta, André Collet, and J. Andrew McCammon pp 8015–8022 DOI: 10.1021/ja971186d

On the Hydronium Ion Catalyzed Mechanism in Vinyl Alcohol−Acetaldehyde Isomerization:  Ab initio Molecular Orbital Theory and Monte Carlo Simulation Masataka Nagaoka, Katsuhiro Suenobu, and Tokio Yamabe pp 8023–8030 DOI: 10.1021/ja963994v

Models for Stereoselective Additions to Chiral Allylic Ethers:  Osmium Tetroxide Bis-hydroxylations Jan Haller, Thomas Strassner, and K. N. Houk pp 8031–8034 DOI: 10.1021/ja971342g

17O and 13C NMR/ab Initio/IGLO/GIAO-MP2 Study of Oxonium and Carboxonium Ions (Dications) and Comparison with Experimental Data1 George A. Olah, Arwed Burrichter, Golam Rasul, Robert Gnann, Karl O. Christe, and G. K. Surya Prakash pp 8035–8042 DOI: 10.1021/ja970908y

Theoretical Studies on Alkene Addition to Molybdenum Alkylidenes Yun-Dong Wu and Zhi-Hui Peng pp 8043–8049 DOI: 10.1021/ja970644f Supporting Info

Preference for Eclipsed Conformations in Acyclic Neopentyldialkylamines and the Stereodynamical Consequences:  An NMR and Molecular Mechanics Investigation1 J. Edgar Anderson, Daniele Casarini, Anthony I. Ijeh, and Lodovico Lunazzi pp 8050–8057 DOI: 10.1021/ja9710363

Control of the “Superexchange” Interaction through Diphenyl Sulfide 4,4‘-Diyl Magnetic Coupler by Changing the Oxidation State and Conformation of the Sulfur Atom Kenji Matsuda, Takehiro Yamagata, Tomoo Seta, Hiizu Iwamura, and Kenzi Hori pp 8058–8064 DOI: 10.1021/ja9643984 Supporting Info

Density Functional Study of Cobalt-59 Nuclear Magnetic Resonance Chemical Shifts and Shielding Tensor Elements in Co(III) Complexes Nathalie Godbout and Eric Oldfield pp 8065–8069 DOI: 10.1021/ja970981o

An Empirical Correlation between Amide Deuterium Isotope Effects on 13Cα Chemical Shifts and Protein Backbone Conformation Marcel Ottiger and Ad Bax pp 8070–8075 DOI: 10.1021/ja9707466 Supporting Info

Solution NMR Measurement of Amide Proton Chemical Shift Anisotropy in 15N-Enriched Proteins. Correlation with Hydrogen Bond Length Nico Tjandra and Ad Bax pp 8076–8082 DOI: 10.1021/ja970876e Supporting Info

Phenyl Radical, Cation, and Anion. The Triplet−Singlet Gap and Higher Excited States of the Phenyl Cation Athanassios Nicolaides, David M. Smith, Frank Jensen, and Leo Radom pp 8083–8088 DOI: 10.1021/ja970808s Supporting Info

Thermal Desorption Induced by Kiloelectronvolt Ion Bombardment of Thiol-Bound Self-Assembled Monolayers on Gold D. E. Riederer, R. Chatterjee, S. W. Rosencrance, Z. Postawa, T. D. Dunbar, D. L. Allara, and N. Winograd pp 8089–8094 DOI: 10.1021/ja971083v

Does β-Carotene Really Protect Vitamin E from Oxidation? Luca Valgimigli, M. Lucarini, G. F. Pedulli, and K. U. Ingold pp 8095–8096 DOI: 10.1021/ja971351p Supporting Info

Iodosylbenzene Oxidation of Alkanes, Alkenes, and Sulfides Catalyzed by Binuclear Non-heme Iron Systems:  Comparison of Non-heme Iron Versus Heme Iron Oxidation Pathways Subhasish Mukerjee, Adonis Stassinopoulos, and John P. Caradonna pp 8097–8098 DOI: 10.1021/ja9709482 Supporting Info

Oxene versus Non-oxene Reactive Intermediates in Iron(III) Porphyrin Catalyzed Oxidation Reactions:  Organometallic Compounds as Diagnostic Probes Kaliappan Kamaraj and Debkumar Bandyopadhyay pp 8099–8100 DOI: 10.1021/ja964114f Supporting Info

Fullerene Carbon Resonance Assignments through 15N−13C Coupling Constants and Location of the sp3 Carbon Atoms of (C59N)2 Cheryl Bellavia-Lund, Majid Keshavarz-K., Tasha Collins, and Fred Wudl pp 8101–8102 DOI: 10.1021/ja970492o Supporting Info

Fast Kinetic Measurements with Nanometer-Sized Pipets. Transfer of Potassium Ion from Water into Dichloroethane Facilitated by Dibenzo-18-crown-6 Yuanhua Shao and Michael V. Mirkin pp 8103–8104 DOI: 10.1021/ja971824s

New Synthetic Technology for the Construction of 9-Membered Ring Cyclic Ethers. Construction of the EFGH Ring Skeleton of Brevetoxin A K. C. Nicolaou, Z. Yang, M. Ouellette, G.-Q. Shi, P. Gärtner, J. L. Gunzner, K. A. Agrios, R. Huber, R. Chadha, and D. H. Huang pp 8105–8106 DOI: 10.1021/ja971219p Supporting Info

Inhibition of Mn2+2-Arginase by Borate Leads to the Design of a Transition State Analogue Inhibitor, 2(S)-Amino-6-boronohexanoic Acid Ricky Baggio, Daniel Elbaum, Zoltan F. Kanyo, Patrick J. Carroll, R. Christopher Cavalli, David E. Ash, and David W. Christianson pp 8107–8108 DOI: 10.1021/ja971312d Supporting Info

Cs6Ge8Zn:  A Zintl Phase with Isolated Heteroatomic Clusters of Ge8Zn Virginie Queneau and Slavi C. Sevov pp 8109–8110 DOI: 10.1021/ja9717121 Supporting Info

Photomodulation of the Spontaneous Polarization of a Ferroelectric Liquid Crystal:  Harnessing the Transverse Dipole Modulation of a Chiral Thioindigo Dopant Liviu Dinescu and Robert P. Lemieux pp 8111–8112 DOI: 10.1021/ja9715758 Supporting Info

Amphiphilic Catalytic Allylating Reagent, Bis-π-allylpalladium Complex Hiroyuki Nakamura, Jae-Goo Shim, and Yoshinori Yamamoto pp 8113–8114 DOI: 10.1021/ja971599e Supporting Info

Aggregation of a Neutral Gold(I) Complex through Cooperative Action of Hydrogen Bonding and Auriophilicity Christian Hollatz, Annette Schier, and Hubert Schmidbaur pp 8115–8116 DOI: 10.1021/ja9714503 Supporting Info

Synthesis, X-ray Structure, and Properties of the First Tetrakisadduct of Fullerene C60 Having a Fulvene-Type π-System on the Spherical Surface Yasujiro Murata, Motoo Shiro, and Koichi Komatsu pp 8117–8118 DOI: 10.1021/ja971456s Supporting Info

A Supramolecular Analog of the Photosynthetic Special Pair Martinus C. Feiters, Matthew C. T. Fyfe, M.-Victoria Martínez-Díaz, Stephan Menzer, Roeland J. M. Nolte, J. Fraser Stoddart, Paul J. M. van Kan, and David J. Williams pp 8119–8120 DOI: 10.1021/ja971473h Supporting Info

Assembly of Microperoxidase-11 and Co(II)-Protoporphyrin IX Reconstituted Myoglobin Monolayers on Au-Electrodes:  Integrated Bioelectrocatalytic Interfaces Vered Heleg-Shabtai, Eugenii Katz, and Itamar Willner pp 8121–8122 DOI: 10.1021/ja9715509

Ring Opening in the Palladium-Catalyzed Hydrocarbonation of Methylenecyclopropanes with Pronucleophiles Naofumi Tsukada, Akinori Shibuya, Itaru Nakamura, and Yoshinori Yamamoto pp 8123–8124 DOI: 10.1021/ja970261h Supporting Info

Cationic Aluminum Alkyl Complexes Incorporating Amidinate Ligands. Transition-Metal-Free Ethylene Polymerization Catalysts Martyn P. Coles and Richard F. Jordan pp 8125–8126 DOI: 10.1021/ja971815j Supporting Info

New Synthetic Method for Functionalized Pyrrolizidine, Indolizidine, and Mitomycin Alkaloids Jinhwa Lee, Jae Du Ha, and Jin Kun Cha pp 8127–8128 DOI: 10.1021/ja9716564 Supporting Info

Tris(phenylimino)-1,3-diphenyl-1,2,3-propantrione:  A Model Compound Implicating a Nonhelical Structure for Poly((N-phenylimino)methylene) Lynne Spencer, Misoo Kim, William B. Euler, and William Rosen pp 8129–8130 DOI: 10.1021/ja970880q

Antibody-Catalyzed Enantioselective Robinson Annulation Guofu Zhong, Torsten Hoffmann, Richard A. Lerner, Samuel Danishefsky, and Carlos F. Barbas III pp 8131–8132 DOI: 10.1021/ja970944x Supporting Info

Extremely Facile Oxidative Addition of Silyl, Germyl, and Stannyl Tellurides and Other Chalcogenides to Platinum(0) Complexes. X-ray Structure of trans-Pt(4-PhC6H4Te)(SiMe3)(PEt3)2 Li-Biao Han, Shigeru Shimada, and Masato Tanaka pp 8133–8134 DOI: 10.1021/ja9713744 Supporting Info

Carbon−Oxygen Reductive-Elimination from Nickel(II) Oxametallacycles and Factors That Control Formation of Ether, Aldehyde, Alcohol, or Ester Products Runyu Han and Gregory L. Hillhouse pp 8135–8136 DOI: 10.1021/ja9714999 Supporting Info

Issue 35

A Theoretical Examination of the Factors Controlling the Catalytic Efficiency of a Transmethylation Enzyme:  Catechol O-Methyltransferase Ya-Jun Zheng and Thomas C. Bruice pp 8137–8145 DOI: 10.1021/ja971019d

Chemoenzymatic Preparation of Novel Cyclic Imine Sugars and Rapid Biological Activity Evaluation Using Electrospray Mass Spectrometry and Kinetic Analysis Shuichi Takayama, Richard Martin, Jiangyue Wu, Karen Laslo, Gary Siuzdak, and Chi-Huey Wong pp 8146–8151 DOI: 10.1021/ja971695f Supporting Info

Small Molecules as Structural and Functional Mimics of Sialyl Lewis X Tetrasaccharide in Selectin Inhibition:  A Remarkable Enhancement of Inhibition by Additional Negative Charge and/or Hydrophobic Group Chi-Huey Wong, Francisco Moris-Varas, Shang-Cheng Hung, Thomas G. Marron, Chun-Cheng Lin, Ke Wei Gong, and Gabriele Weitz-Schmidt pp 8152–8158 DOI: 10.1021/ja970920q

On the Mechanism of Acetylcholinesterase Action:  The Electrostatically Induced Acceleration of the Catalytic Acylation Step Stanislaw T. Wlodek, Jan Antosiewicz, and James M. Briggs pp 8159–8165 DOI: 10.1021/ja970395v

Probing the Role of an Active Site Aspartic Acid in Dihydrofolate Reductase Vladimir A. Karginov, Sergey V. Mamaev, Haoyun An, Mark D. Van Cleve, Sidney M. Hecht, George A. Komatsoulis, and John N. Abelson pp 8166–8176 DOI: 10.1021/ja971099l

Phosphonate Diester and Phosphonamide Synthesis. Reaction Coordinate Analysis by 31P NMR Spectroscopy:  Identification of Pyrophosphonate Anhydrides and Highly Reactive Phosphonylammonium Salts1 Ralph Hirschmann, Kraig M. Yager, Carol M. Taylor, Jason Witherington, Paul A. Sprengeler, Barton W. Phillips, William Moore, and Amos B. Smith, III pp 8177–8190 DOI: 10.1021/ja962465o

The Ratio between Endocyclic and Exocyclic Cleavage of Pyranoside Acetals Is Dependent upon the Anomer, the Temperature, the Aglycon Group, and the Solvent Jennifer L. Liras, Vincent M. Lynch, and Eric V. Anslyn pp 8191–8200 DOI: 10.1021/ja963807t Supporting Info

Radical Ion Probes. 6. Origin of the High Intrinsic Barrier to Nucleophile-Induced Ring Opening of Arylcyclopropane Radical Cations Yonghui Wang and J. M. Tanko pp 8201–8208 DOI: 10.1021/ja970932b Supporting Info

Two Different Pathways of Stereoinformation Transfer:  Asymmetric Substitutions in the (−)-Sparteine Mediated Reactions of Laterally Lithiated N,N-Diisopropyl-o-ethylbenzamide and N-Pivaloyl-o-ethylaniline S. Thayumanavan, Amit Basu, and Peter Beak pp 8209–8216 DOI: 10.1021/ja970930r Supporting Info

Synthetic Models of the Inactive Copper(II)−Tyrosinate and Active Copper(II)−Tyrosyl Radical Forms of Galactose and Glyoxal Oxidases Jason A. Halfen, Brian A. Jazdzewski, Samiran Mahapatra, Lisa M. Berreau, Elizabeth C. Wilkinson, Lawrence Que, Jr., and William B. Tolman pp 8217–8227 DOI: 10.1021/ja9700663 Supporting Info

Why Are the Terminal ν(CO) Infrared Spectra of Metal Cluster Carbonyls So Often So Simple? S. F. A. Kettle, E. Diana, R. Rossetti, and P. L. Stanghellini pp 8228–8231 DOI: 10.1021/ja963920j

Carbon−Nitrogen-Bond-Forming Reductive Elimination of Arylamines from Palladium(II) Phosphine Complexes Michael S. Driver and John F. Hartwig pp 8232–8245 DOI: 10.1021/ja971057x Supporting Info

Formation of Ferromagnetic Chains by Photolysis of 1:1 Complexes of Bis(hexafluoroacetylacetonato)copper(II) with Diazodi-4-pyridylmethane Yoko Sano, Masakazu Tanaka, Noboru Koga, Kenji Matsuda, Hiizu Iwamura, Pierre Rabu, and Marc Drillon pp 8246–8252 DOI: 10.1021/ja970624d Supporting Info

Effects of Intraligand Electron Delocalization, Steric Tuning, and Excited-State Vibronic Coupling on the Photophysics of Aryl-Substituted Bipyridyl Complexes of Ru(II) Niels H. Damrauer, Thomas R. Boussie, Martin Devenney, and James K. McCusker pp 8253–8268 DOI: 10.1021/ja971321m Supporting Info

Photodissociation Dynamics of Organometallics:  Quantum Simulation for the Dihydride Complex H2Fe(CO)4 Marie-Catherine Heitz and Chantal Daniel pp 8269–8275 DOI: 10.1021/ja9643127 Supporting Info

Outer Shape of Molecules as Probed by Ground-State Atoms from H to Ar Shigeo Hoshino and Koichi Ohno pp 8276–8284 DOI: 10.1021/ja963376e

A Quantum Chemical Study of Hydrogen Abstraction from Manganese-Coordinated Water by a Tyrosyl Radical:  A Model for Water Oxidation in Photosystem II Margareta R. A. Blomberg, Per E. M. Siegbahn, Stenbjörn Styring, Gerald T. Babcock, Björn Åkermark, and Peter Korall pp 8285–8292 DOI: 10.1021/ja9642323

Circular Dichroism Spectroscopy Using Coherent Laser-Induced Thermal Gratings David W. Neyer, Larry A. Rahn, David W. Chandler, Jon A. Nunes, and William G. Tong pp 8293–8300 DOI: 10.1021/ja970291k

Mössbauer and EPR Study of the Ni-Activated α-Subunit of Carbon Monoxide Dehydrogenase from Clostridium thermoaceticum Jinqiang Xia, Zhengguo Hu, Codrina V. Popescu, Paul A. Lindahl, and Eckard Münck pp 8301–8312 DOI: 10.1021/ja971025+

Steric Consequences on the Conformation of Medium-Sized Rings:  Solution NMR, Solid-State Crystallographic, ab Initio Molecular Orbital Calculations, and Molecular Mechanics Studies on Substituted Eight-Membered Organosilicon Ring Systems1 Lilibeth P. Burke, Anthony D. DeBellis, Herman Fuhrer, Hansrudolf Meier, Stephen D. Pastor, Grety Rihs, Guenther Rist, Ronald K. Rodebaugh, and Sai P. Shum pp 8313–8323 DOI: 10.1021/ja9711829 Supporting Info

Conformational Analysis. 21. Ethane-1,2-diol. An Electron-Diffraction Investigation, Augmented by Rotational Constants and ab Initio Calculations, of the Molecular Structure, Conformational Composition, SQM Vibrational Force Field, and Anti-Gauche Energy Difference with Implications for Internal Hydrogen Bonding M. Rahim Kazerouni, Lise Hedberg, and Kenneth Hedberg pp 8324–8331 DOI: 10.1021/ja9708631 Supporting Info

Coupled Reactions of Condensation and Charge Transfer. 1. Formation of Olefin Dimer Ions in Reactions with Ionized Aromatics. Gas-Phase Studies Michael Meot-Ner (Mautner), Yezdi B. Pithawalla, Junling Gao, and M. Samy El-Shall pp 8332–8341 DOI: 10.1021/ja962635x

Bridging versus Hydride Shift in Gaseous Cations:  Hydroxy as a Vicinal Substituent Viet Nguyen, Jacqueline S. Bennett, and Thomas Hellman Morton pp 8342–8349 DOI: 10.1021/ja964475v Supporting Info

Large Effect on Borane Bond Dissociation Energies Resulting from Coordination by Lewis Bases Paul R. Rablen pp 8350–8360 DOI: 10.1021/ja970870p Supporting Info

Laser Spectroscopic Detection of the Simplest Unsaturated Silylene and Germylene Warren W. Harper, Eric A. Ferrall, Randall K. Hilliard, Steven M. Stogner, Roger S. Grev, and Dennis J. Clouthier pp 8361–8362 DOI: 10.1021/ja9716012

Synthesis and Cation-Mediated Electronic Interactions of Two Novel Classes of Porphyrin−Fullerene Hybrids Phil S. Baran, Regina R. Monaco, Ahsan U. Khan, David I. Schuster, and Stephen R. Wilson pp 8363–8364 DOI: 10.1021/ja970486s Supporting Info

Addition of Iminium Salts to the Reductively Activated Benzene in [Mn(η4-C6H6)(CO)3]- Sang-Hee Ko Park, Steven J. Geib, and N. John Cooper pp 8365–8366 DOI: 10.1021/ja970040b Supporting Info

Very Efficient Visible-Light-Induced Uphill Electron Transfer at a Self-Assembled Monolayer with a Porphyrin−Ferrocene−Thiol Linked Molecule Kohei Uosaki, Toshihiro Kondo, Xue-Qun Zhang, and Masatoshi Yanagida pp 8367–8368 DOI: 10.1021/ja970945p Supporting Info

New Photoactivated Protecting Groups. 7. p-Hydroxyphenacyl:  A Phototrigger for Excitatory Amino Acids and Peptides1 Richard S. Givens, Andreas Jung, Chan-Ho Park, Jörg Weber, and Wenzel Bartlett pp 8369–8370 DOI: 10.1021/ja971331n

Chemistry of Iron Thiolate Complexes with CN- and CO. Models for the [Fe(CO)(CN)2] Structural Unit in Ni−Fe Hydrogenase Enzymes Hua-Fen Hsu and Stephen A. KochCodrina V. Popescu and Eckard Münck pp 8371–8372 DOI: 10.1021/ja971139l Supporting Info

Chemical Constraints on Organic Cations in the Interstellar Medium‡ Valery Le Page, Yeghis Keheyan, Veronica M. Bierbaum, and Theodore P. Snow pp 8373–8374 DOI: 10.1021/ja971330v

Biological Enolates:  Generation and Stability of the Enolate of N-Protonated Glycine Methyl Ester in Water Ana Rios and John P. Richard pp 8375–8376 DOI: 10.1021/ja9714346

Electron Transfer across a Peptide−Peptide Interface within a Designed Metalloprotein Gennady V. Kozlov and Michael Y. Ogawa pp 8377–8378 DOI: 10.1021/ja970814o Supporting Info

Asymmetric Dipolar Cycloadditions of Me3SiCHN2. Synthesis of a Novel Class of Amino Acids:  Azaprolines Michael R. Mish, Francisco M. Guerra, and Erick M. Carreira pp 8379–8380 DOI: 10.1021/ja971708p Supporting Info

An Efficient Total Synthesis of Okadaic Acid Craig J. Forsyth, Steven F. Sabes, and Rebecca A. Urbanek pp 8381–8382 DOI: 10.1021/ja9715206 Supporting Info

Control of Morphology through Polymer−Solvent Interactions in Crew-Cut Aggregates of Amphiphilic Block Copolymers Yisong Yu and Adi Eisenberg pp 8383–8384 DOI: 10.1021/ja9709740

A Highly Stereoselective Aza-[3,3]-Claisen Rearrangement of Vinylaziridines as a Novel Entry to Seven-Membered Lactams Ulf M. Lindström and Peter Somfai pp 8385–8386 DOI: 10.1021/ja971572v Supporting Info

A New Synthetic Route to Organoalumoxanes (RAlO)n:  Synthesis of (Mes*AlO)4 (Mes* = −C6H2-2,4,6-t-Bu3) and Its Reactions with AlR3 (R = Me or Et) Rudolf J. Wehmschulte and Philip P. Power pp 8387–8388 DOI: 10.1021/ja9713901 Supporting Info

Gas/Solid Reactivity of Unsaturated Ruthenium-Containing Molecular Solids Montserrat Oliván, Alexei V. Marchenko, Joseph N. Coalter, and Kenneth G. Caulton pp 8389–8390 DOI: 10.1021/ja971608j Supporting Info

Total Synthesis of (+)-Cladantholide and (−)-Estafiatin:  5-Exo,7-Endo Radical Cyclization Strategy for the Construction of Guaianolide Skeleton Eun Lee, Jong Won Lim, Cheol Hwan Yoon, Yong-suk Sung, and Young Kwon KimMikyung Yun and Sangsoo Kim pp 8391–8392 DOI: 10.1021/ja971164r Supporting Info

A Novel Palladium-Catalyzed Homocoupling of Alkynylstannanes:  A New Synthetic Approach to Extended Linear-Carbon Polymers Michael E. Wright, Michael J. Porsch, Chad Buckley, and Brooks B. Cochran pp 8393–8394 DOI: 10.1021/ja9705553

gNMR Version 3.6.5 Cherwell Scientific Publishing Limited, The Magdalen Centre, Oxford Science Park, Oxford OX4 4GA, England; http://www.cherwell.com/cherwell. Developed by Dr. Peter Budzelaar. Single-user list price $899; educational discount price $599. (Note:  Some earlier versions of this program had the name geNMR.) Stuart Rosenfeld p 8395 DOI: 10.1021/ja9759048

Alchemy 2000 Version 1.1 Tripos, Inc., 1699 S. Hanley Rd., St. Louis, MO 63144-2913. Phone:  (314) 647-1099. FAX:  (314) 647-9241. List price $995.00 for personal or commercial use and $695.00 for academic use Lawrence L. Poulsen pp 8395–8396 DOI: 10.1021/ja965939s

Dynamics of Molecules and Chemical Reactions Edited by Robert E. Wyatt (University of TexasAustin) and John Z. H. Zhang (New York University). Marcel Dekker, Inc.:  New York. 1996. ix + 667 pp. $150.00. ISBN 0-8247-9538-5. Joel M. Bowman p 8396 DOI: 10.1021/ja965727v

Olefin Metathesis and Metathesis Polymerization By K. J. Ivin (The Queen's University of Belfast) and J. C. Mol (University of Amsterdam). Academic Press:  San Diego. 1997. xvi + 472 pp. $70.00. ISBN 0-12-377045-9. Warren E. Piers p 8396 DOI: 10.1021/ja975520h

Issue 36

Atomic Group “Mutagenesis” Reveals Major Groove Fine Interactions of a tRNA Synthetase with an RNA Helix Penny J. Beuning, Miriam Gulotta, and Karin Musier-Forsyth pp 8397–8402 DOI: 10.1021/ja971020c

Rotational Barriers of cis/trans Isomerization of Proline Analogues and Their Catalysis by Cyclophilin Dorothee Kern, Mike Schutkowski, and Torbjörn Drakenberg pp 8403–8408 DOI: 10.1021/ja970606w Supporting Info

Low-Power Picosecond Resonance Raman Evidence for Histidine Ligation to Heme a3 after Photodissociation of CO from Cytochrome c Oxidase Johannes P. M. Schelvis, Geurt Deinum, Constantinos A. Varotsis, Shelagh Ferguson-Miller, and Gerald T. Babcock pp 8409–8416 DOI: 10.1021/ja964133p

Flash Photolysis of 10-Diazo-9(10H)-phenanthrenone in Aqueous Solution. Hydration of Fluorenylideneketene and the Fluorene-9-carboxylic Acid Keto−Enol System J. Andraos, Y. Chiang, A. J. Kresge, and V. V. Popik pp 8417–8424 DOI: 10.1021/ja971381s Supporting Info

[1.1]Paracyclophane. Photochemical Generation from the Corresponding Bis(Dewar benzene) Derivative and Theoretical Study of Its Structure and Strain Energy Takashi Tsuji, Masakazu Ohkita, Tomohisa Konno, and Shinya Nishida pp 8425–8431 DOI: 10.1021/ja9715253 Supporting Info

2-Alkylidenephosphiranes Steffen Krill, Bing Wang, Jui-Te Hung, Chris J. Horan, Gary M. Gray, and Koop Lammertsma pp 8432–8437 DOI: 10.1021/ja971340w Supporting Info

Total Synthesis of (+)-Epoxydictymene. Application of Alkoxy-Directed Cyclization to Diterpenoid Construction Leo A. Paquette, Li-Qiang Sun, Dirk Friedrich, and Paul B. Savage pp 8438–8450 DOI: 10.1021/ja971526v Supporting Info

Palladium-Catalyzed Coupling of Optically Active Amines with Aryl Bromides Seble Wagaw, Roger A. Rennels, and Stephen L. Buchwald pp 8451–8458 DOI: 10.1021/ja971583o

Photochemistry of M(PP3)H2 (M = Ru, Os; PP3 = P(CH2CH2PPh2)3):  Preparative, NMR, and Time-Resolved Studies Robert Osman, David I. Pattison, Robin N. Perutz, Claudio Bianchini, Juan A. Casares, and Maurizio Peruzzini pp 8459–8473 DOI: 10.1021/ja963797w Supporting Info

Characterization of the Extra-Large-Pore Zeolite UTD-1 Raul F. Lobo, Michael Tsapatsis, Clemens C. Freyhardt, Shervin Khodabandeh, Paul Wagner, Cong-Yan Chen, Kenneth J. BalkusJr., Stacey I. Zones, and Mark E. Davis pp 8474–8484 DOI: 10.1021/ja9708528 Supporting Info

C−O Bond Homolysis in a Tungsten Alkoxide:  The Mechanism of Alcohol Deoxygenation by WCl2(PMe3)4 and WH2Cl2(PMe3)4 Thomas J. Crevier and James M. Mayer pp 8485–8491 DOI: 10.1021/ja970929s

Hydrogen-Bonded Porphyrinic Solids:  Supramolecular Networks of Octahydroxy Porphyrins P. Bhyrappa, Scott R. Wilson, and Kenneth S. Suslick pp 8492–8502 DOI: 10.1021/ja971093w Supporting Info

Synthesis, Structure, and Reactivity of Iridacyclohexadienone and Iridaphenol Complexes1 John R. Bleeke and Robert Behm pp 8503–8511 DOI: 10.1021/ja971721+ Supporting Info

Redox-Induced Changes in the Geometry and Electronic Structure of Di-μ-oxo-Bridged Manganese Dimers John E. McGrady and Robert Stranger pp 8512–8522 DOI: 10.1021/ja964360r

Multistate Gaussian Model for Electrostatic Solvation Free Energies Gerhard Hummer, Lawrence R. Pratt, and Angel E. García pp 8523–8527 DOI: 10.1021/ja971148u

Indifference to Hydrogen Bonding in a Family of Secondary Amides D. Tyler McQuade, Sonya L. McKay, Douglas R. Powell, and Samuel H. Gellman pp 8528–8532 DOI: 10.1021/ja9711019 Supporting Info

Thermodynamics of Phospholipid Tubules in Alcohol/Water Solutions Mark S. Spector, Jonathan V. Selinger, and Joel M. Schnur pp 8533–8539 DOI: 10.1021/ja9716665

3D 15N−13C−13C Chemical Shift Correlation Spectroscopy in Rotating Solids B.-Q. Sun, C. M. Rienstra, P. R. Costa, J. R. Williamson, and R. G. Griffin pp 8540–8546 DOI: 10.1021/ja970073r

Extracting Information from the Temperature Gradients of Polypeptide NH Chemical Shifts. 1. The Importance of Conformational Averaging Niels H. Andersen, Jonathan W. Neidigh, Scott M. Harris, Gregory M. Lee, Zhihong Liu, and Hui Tong pp 8547–8561 DOI: 10.1021/ja963250h Supporting Info

First Completely Stable Axial Conformers of Monosubstituted Cyclohexanes at Room Temperature Fu-An Kang and Cheng-Lie Yin pp 8562–8563 DOI: 10.1021/ja963858q

High-Resolution Chemical Mapping of Surface Bound Functional Groups with Tapping-Mode Scanning Force Microscopy Michael O. Finot and Mark T. McDermott pp 8564–8565 DOI: 10.1021/ja971474+

C−H Bond Activation by a Ferric Methoxide Complex:  A Model for the Rate-Determining Step in the Mechanism of Lipoxygenase Robert T. Jonas and T. D. P. Stack pp 8566–8567 DOI: 10.1021/ja971503g Supporting Info

2,2-Dimethyl-2H-dibenzo[cd,k]fluoranthene, the First Kekulé Hydrocarbon with a Triplet Ground State Daniel R. McMasters and Jakob WirzGary J. Snyder pp 8568–8569 DOI: 10.1021/ja971635+

Viewing Early Stages of Guanine Nucleotide Attack on Pt(II) Complexes Designed with In-Plane Bulk to Trap Initial Adducts. Relevance to cis-Type Pt(II) Anticancer Drugs Susan Onuschak Ano, Francesco P. Intini, Giovanni Natile, and Luigi G. Marzilli pp 8570–8571 DOI: 10.1021/ja971250r Supporting Info

Single-Step Process for the Reductive Deoxygenation of Unhindered Alcohols Andrew G. Myers, Mohammad Movassaghi, and Bin Zheng pp 8572–8573 DOI: 10.1021/ja971768v Supporting Info

Energetics of Metal−Ligand Multiple Bonds. Thermochemistry of Tantalum(V) Alkylidene Formation Lubin Luo, Liting Li, and Tobin J. Marks pp 8574–8575 DOI: 10.1021/ja971326j Supporting Info

Vinca Alkaloids in Superacidic Media:  A Method for Creating a New Family of Antitumor Derivatives Jacques Fahy, Alain Duflos, Jean-Paul Ribet, Jean-Claude Jacquesy, Christian Berrier, Marie-Paule Jouannetaud, and Fabien Zunino pp 8576–8577 DOI: 10.1021/ja971864w Supporting Info

Cu K-Edge XAS Study of the [Cu2(μ-O)2] Core:  Direct Experimental Evidence for the Presence of Cu(III) Jennifer L. DuBois, Pulakesh Mukherjee, Andrea M. Collier, James M. Mayer, Edward I. Solomon, Britt Hedman, T. D. P. Stack, and Keith O. Hodgson pp 8578–8579 DOI: 10.1021/ja9717673

Microbial Physiology By Albert G. Moat (Marshall University School of Medicine, West Virginia) and John W. Foster (University of Alabama School of Medicine). Wiley:  New York. 1995. xv + 580 pp. $59.95. ISBN 0-471-01452-4. Elzbieta Prusak-Sochaczewski p 8580 DOI: 10.1021/ja955297t

Bioceramics, Volume 8 Edited by June Wilson and Larry L. Hench (University of Florida) and David Greenspan (U.S. Biomaterials Corp., Florida). Elsevier:  Oxford. 1995. xvi + 512 pp. $200.00. ISBN 0-08-0426778. p 8580 DOI: 10.1021/ja965604a

Concepts in Chemistry:  A Contemporary Challenge Edited by Dennis H. Rouvray (University of Georgia). Wiley:  New York. 1997. xvi + 420 pp. $79.95. ISBN 0−471−96555-3. William B. Jensen p 8580 DOI: 10.1021/ja9755471

Radical Chemistry By M. J. Perkins (Brunel University, London). Ellis-Horwood:  New York. 1994. x + 182 pp. $25.95. ISBN 0-13-320920-2. Rebecca Braslau pp 8580–8581 DOI: 10.1021/ja975525e

Guidebook to the Calcium-Binding Proteins Edited by Marco R. Celio (University of Fribourg, Switzerland). Oxford University Press:  New York. 1996. xvi + 238 pp. $34.95. ISBN 0-19-859950-1. Patricia B. O'Hara p 8581 DOI: 10.1021/ja975515d

Protein Sequencing Protocols. Series:  Methods in Molecular Biology, Vol. 64 Edited by Bryan John Smith Celltech Therapeutics, U.K.). Humana Press:  Totowa, NJ. 1997. xiv + 375 pp. $69.50. ISBN 0-89603-353-8. Donald R. Bobbitt pp 8581–8582 DOI: 10.1021/ja9657824

Basic Principles of Membrane Technology By Marcel Mulder (University of Twente, The Netherlands). Kluwer Academic:  Dordrecht. 1996. 564 pp. $255.00. ISBN 0-7823-4247-X. Joel R. Fried p 8582 DOI: 10.1021/ja975504k

Advances in Silicon Chemistry, Vol. 3 Edited by Gerald L. Larson (Huls America, Inc., New Jersey). JAI Press:  Greenwich, CT. 1996. ix + 279 pp. $109.50. ISBN 1-55938-831-5. James C. Hill p 8582 DOI: 10.1021/ja975509h

Mössbauer Spectroscopy Applied to Magnetism and Materials Science, Vol. 2. Series:  Modern Inorganic Chemistry Edited by Gary J. Long (University of MissouriRolla) and Fernande Grandjean (University of Liege). Plenum:  New York. 1996. xv + 361 pp. $89.50. ISBN 0-306-45398-3. Lawrence H. Bowen pp 8582–8583 DOI: 10.1021/ja965755d

Chromatographic Analysis of Pharmaceuticals, 2nd ed. Revised & Expanded Chromatographic Science Series, Vol. 74 Edited by John A. Adamovics (Cytogen Corp., New Jersey). Marcel Dekker, Inc.:  New York. 1997. x + 527 pp. $165. ISBN 0-8247-9776-0. Chia-yu Li p 8583 DOI: 10.1021/ja9658022

Carotenoids, Volume 2:  Synthesis Edited by George Britton (University of Liverpool), Synnove Liaaen-Jensen (Norwegian University of Science & Technology), and Hanspeter Pfander (University of Bern). Birkhauser:  Neward. 1996. xix + 359 pp. $139.50. ISBN 3-7643-5297-3. Koji Nakanishi pp 8583–8584 DOI: 10.1021/ja9657519

Chemical Aspects of Drug Delivery Systems Edited by D. R. Karsa (Akcros Chemicals) and R. A. Stephenson. The Royal Society of Chemistry:  Cambridge. 1996. viii + 161 pp. $89.00. ISBN 0-85404-706-9. Gordon L. Amidon p 8584 DOI: 10.1021/ja965669d

Protein Phosphorylation Edited by Friedrich Marks (Heidelberg). VCH:  Weinheim. 1996. xxiii + 381 pp. DM198.00. ISBN 3-527-29241-1. Peter J. Kennelly p 8584 DOI: 10.1021/ja965729f

The Theory of Intermolecular Forces, Volume 32 of International Series of Monographs on Chemistry By A. J. Stone (University of Cambridge). Oxford University Press:  New York. 1996. xi + 264 pp. $90.00. ISBN 0-19-855884-8. Neil R. Kestner p 8584 DOI: 10.1021/ja9657972

Issue 37

Controlling Polymeric Topology by Polymerization Conditions:  Mechanically Linked Network and Branched Poly(urethane rotaxane)s with Controllable Polydispersity Caiguo Gong and Harry W. Gibson pp 8585–8591 DOI: 10.1021/ja971385x

Selenothioic Acid S-Esters:  Synthesis, Characterization, and Trend for Stability Toshiaki Murai, Kaori Kakami, Akihiro Hayashi, Toshihiro Komuro, Hiroya Takada, Makiko Fujii, Takahiro Kanda, and Shinzi Kato pp 8592–8597 DOI: 10.1021/ja970462l Supporting Info

Structure and Function of an Aromatic Ensemble That Restricts the Dynamics of the Hydrophobic Core of a Designed Helix-Loop-Helix Dimer Lars Brive, Gunnar T. Dolphin, and Lars Baltzer pp 8598–8607 DOI: 10.1021/ja970477j

Iterative Cyclopropanation:  A Concise Strategy for the Total Synthesis of the Hexacyclopropane Cholesteryl Ester Transfer Protein Inhibitor U-106305 Anthony G. M. Barrett, Dieter Hamprecht, Andrew J. P. White, and David J. Williams pp 8608–8615 DOI: 10.1021/ja9708326 Supporting Info

Assembly of Mesoporous Lamellar Silicas with Hierarchical Particle Architectures Peter T. Tanev, Ying Liang, and Thomas J. Pinnavaia pp 8616–8624 DOI: 10.1021/ja970228v

Synthesis and Structure of Pd4(μ-PtBu2)2(μ-CS2)(PPh3)2I2, a Neutral Palladium(I) Derivative with a Hexacoordinate Carbon and a CS2 Molecule Bridging Four Palladium Centers Piero Leoni, Marco Pasquali, Luca Fadini, Alberto Albinati, Peter Hofmann, and Markus Metz pp 8625–8629 DOI: 10.1021/ja970262+ Supporting Info

Synthesis and Chemistry of Titanacyclopentane and Titanacyclopropane Rings Supported by Aryloxide Ligation Matthew G. Thorn, John E. Hill, Steven A. Waratuke, Eric S. Johnson, Phillip E. Fanwick, and Ian P. Rothwell pp 8630–8641 DOI: 10.1021/ja970515z Supporting Info

RuX(CO)(NO)L2 and Ru(CO)(NO)L2+:  Ru(0) or Ru(II) or In Between? Masamichi Ogasawara, Dejian Huang, William E. Streib, John C. Huffman, Nuria Gallego-Planas, Feliu Maseras, Odile Eisenstein, and Kenneth G. Caulton pp 8642–8651 DOI: 10.1021/ja970563j Supporting Info

Control of Inorganic Layer Thickness in Self-Assembled Iron Oxide/Surfactant Composites Sarah H. Tolbert, Peter Sieger, Galen D. Stucky, Sheila M. J. Aubin, Chi-Cheng Wu, and David N. Hendrickson pp 8652–8661 DOI: 10.1021/ja970695c

Molybdenum−Iron Sulfide-Bridged Double Cubanes Jiesheng Huang, Subhashish Mukerjee, Brent M. Segal, Haruo Akashi, Jian Zhou, and R. H. Holm pp 8662–8674 DOI: 10.1021/ja971401q Supporting Info

Transition Metal Azolates from Metallocenes. 2. Synthesis, X-ray Structure, and Magnetic Properties of a Three-Dimensional Polymetallic Iron(II) Imidazolate Complex, a Low-Temperature Weak Ferromagnet Steven J. Rettig, Alan Storr, David A. Summers, Robert C. Thompson, and James Trotter pp 8675–8680 DOI: 10.1021/ja971558i Supporting Info

Degenerate Transesterification of Dimeric Lithium 2,4,6-Trimethylphenolate and a Further Observation on the Reaction of Tetramers1 Lloyd M. Jackman and Xian Chen pp 8681–8684 DOI: 10.1021/ja970087x

Electronic Structure of the Neutral Tyrosine Radical in Frozen Solution. Selective 2H-, 13C-, and 17O-Isotope Labeling and EPR Spectroscopy at 9 and 35 GHz R. J. Hulsebosch, J. S. van den Brink, S. A. M. Nieuwenhuis, P. Gast, J. Raap, J. Lugtenburg, and A. J. Hoff pp 8685–8694 DOI: 10.1021/ja9707872

Conformational Flexibility of Carbohydrates:  A Folded Conformer at the Dihedral Angle of a Glycosidic Linkage Clas Landersjö, Roland Stenutz, and Göran Widmalm pp 8695–8698 DOI: 10.1021/ja970473e

Density Functional Theory/GIAO Studies of the 13C, 15N, and 1H NMR Chemical Shifts in Aminopyrimidines and Aminobenzenes:  Relationships to Electron Densities and Amine Group Orientations Michael Barfield and Paul Fagerness pp 8699–8711 DOI: 10.1021/ja970990x Supporting Info

Photochemical P-450 Oxygenation of Cyclohexene with Water Sensitized by Dihydroxy-Coordinated (Tetraphenylporphyrinato)antimony(V) Hexafluorophosphate Shinsuke Takagi, Minako Suzuki, Tsutomu Shiragami, and Haruo Inoue pp 8712–8713 DOI: 10.1021/ja971371r

Environmentally Dependent Conformational Preferences of Peptides Paul E. Smith, Herb D. Blatt, and B. Montgomery Pettitt pp 8714–8715 DOI: 10.1021/ja963752v

Electroosmotic Pumping of Organic Solvents and Reagents in Microfabricated Reactor Chips Hossein Salimi-Moosavi, Thompson Tang, and D. Jed Harrison pp 8716–8717 DOI: 10.1021/ja971735f

The First Polycondensation through a Free Radical Chain Process Takeshi Endo, Nobuo Torii, Toshikazu Takata, Tsutomu Yokozawa, and Toshio Koizumi pp 8718–8719 DOI: 10.1021/ja970165g

pH-Switchable, Ultrathin Permselective Membranes Prepared from Multilayer Polymer Composites Yuelong Liu, Mingqi Zhao, David E. Bergbreiter, and Richard M. Crooks pp 8720–8721 DOI: 10.1021/ja972075h Supporting Info

EPR Spectra from “EPR-Silent” Species:  High-Field EPR Spectroscopy of Manganese(III) Porphyrins David P. Goldberg, Joshua Telser, J. Krzystek, Antonio Garrido Montalban, Louis-Claude Brunel, Anthony G. M. Barrett, and Brian M. Hoffman pp 8722–8723 DOI: 10.1021/ja971169o Supporting Info

Synthesis of Prostaglandin E2 Methyl Ester on a Soluble-Polymer Support for the Construction of Prostanoid Libraries Shaoqing Chen and Kim D. Janda pp 8724–8725 DOI: 10.1021/ja971634h Supporting Info

Toward Biomimetic Ion Channels Formed by Rigid-Rod Molecules:  Length-Dependent Ion-Transport Activity of Substituted Oligo(p-Phenylene)s Naomi Sakai, Kevin C. Brennan, Linnea A. Weiss, and Stefan Matile pp 8726–8727 DOI: 10.1021/ja971513h Supporting Info

Photolysis of (C59N)2 Studied by Time-Resolved EPR Andrea Gruss, Klaus-Peter Dinse, Andreas Hirsch, Berthold Nuber, and Uwe Reuther pp 8728–8729 DOI: 10.1021/ja971669h

Mössbauer and EPR Evidence for an All-Ferrous Fe4S4 Cluster with S = 4 in the Fe Protein of Nitrogenase Hayley C. Angove, Sun Jae Yoo, Barbara K. Burgess, and Eckard Münck pp 8730–8731 DOI: 10.1021/ja9712837

Determination of the Exchange-Coupling Constant of an Fe3+−Fe3+ Pair in a Cubane-Type Iron−Sulfur Cluster Sun Jae Yoo, Zhengguo Hu, Christopher Goh, Emile L. Bominaar, Richard H. Holm, and Eckard Münck pp 8732–8733 DOI: 10.1021/ja971171f Supporting Info

Electrostatic Interactions in RNA Aminoglycosides Binding Hai Wang and Yitzhak Tor pp 8734–8735 DOI: 10.1021/ja9715105 Supporting Info

A Time-Resolved Electron Paramagnetic Resonance Study of Excited Triplet Porphyrins in Fluid Solution Jun-ichi Fujisawa, Yasunori Ohba, and Seigo Yamauchi pp 8736–8737 DOI: 10.1021/ja970507i

Asymmetric Transfer Hydrogenation of α, β-Acetylenic Ketones Kazuhiko Matsumura, Shohei Hashiguchi, Takao Ikariya, and Ryoji Noyori pp 8738–8739 DOI: 10.1021/ja971570a Supporting Info

Spectroscopic Evidence for a Radical Cation as Intermediate in a Model Reaction of the 4‘-DNA Radical Strand Cleavage Andreas Gugger, Rohit Batra, Piotr Rzadek, Günther Rist, and Bernd Giese pp 8740–8741 DOI: 10.1021/ja971677y Supporting Info

Covalent 3- and 2-Dimensional Titanium−Quinone Networks Thomas P. Vaid, Emil B. Lobkovsky, and Peter T. Wolczanski pp 8742–8743 DOI: 10.1021/ja971658o Supporting Info

Eleutherobin, a New Cytotoxin that Mimics Paclitaxel (Taxol) by Stabilizing Microtubules Thomas Lindel, Paul R. Jensen, William Fenical, Byron H. Long, Anna Maria Casazza, Joan Carboni, and Craig R. Fairchild pp 8744–8745 DOI: 10.1021/ja9717828 Supporting Info

Optical Pumping and Magic Angle Spinning:  Sensitivity and Resolution Enhancement for Surface NMR Obtained with Laser-Polarized Xenon Daniel Raftery, Ernesto MacNamara, Gregory Fisher, Charles V. Rice, and Jay Smith pp 8746–8747 DOI: 10.1021/ja972035d

Numerical Recipes in Fortran 90:  The Art of Scientific Computing, Second Edition, Volume 2 (3 CD-ROMs and Manual) By William H. Press, Saul A. Teukolsky, William T. Vetterling, and Brian P. Flannery. Cambridge University Press:  New York, 1996. Charles L. Perrin p 8748 DOI: 10.1021/ja965936f

Issue 38

Cleavage of the 5‘ Cap Structure of mRNA by a Europium(III) Macrocyclic Complex with Pendant Alcohol Groups Brenda F. Baker, Homayoon Khalili, Ning Wei, and Janet R. Morrow pp 8749–8755 DOI: 10.1021/ja971050f Supporting Info

Orientation Preferences of Pyrrole−Imidazole Polyamides in the Minor Groove of DNA Sarah White, Eldon E. Baird, and Peter B. Dervan pp 8756–8765 DOI: 10.1021/ja971569b

Chemoenzymatic Solution- and Solid-Phase Synthesis of O-Glycopeptides of the Mucin Domain of MAdCAM-1. A General Route to O-LacNAc, O-Sialyl-LacNAc, and O-Sialyl-Lewis-X Peptides Oliver Seitz and Chi-Huey Wong pp 8766–8776 DOI: 10.1021/ja971383c Supporting Info

Designing Photosystems for Harvesting Photons into Electrons by Sequential Electron-Transfer Processes:  Reversing the Reactivity Profiles of α,β-Unsaturated Ketones as Carbon Radical Precursor by One Electron Reductive β-Activation Ganesh Pandey, Saumen Hajra, Manas K. Ghorai, and K. Ravi Kumar pp 8777–8787 DOI: 10.1021/ja9641564 Supporting Info

Photoreduction of Chloranil by Benzhydrol and Related Compounds. Hydrogen Atom Abstraction vs Sequential Electron−Proton Transfer via Quinone Triplet Radical Ion−Pairs Guilford Jones, II, Nandini Mouli, William A. Haney, and William R. Bergmark pp 8788–8794 DOI: 10.1021/ja970271i

Homolytic Base-Promoted Aromatic Alkylations by Alkylmercury Halides1 Glen A. Russell, Ping Chen, Byeong Hyo Kim, and Ragine Rajaratnam pp 8795–8801 DOI: 10.1021/ja971809n

Novel High-Energy Density Materials. Synthesis and Characterization of Triazidocarbenium Dinitramide, -Perchlorate, and -Tetrafluoroborate Mark A. Petrie, Jeffrey A. Sheehy, Jerry A. Boatz, Golam Rasul, G. K. Surya Prakash, George A. Olah, and Karl O. Christe pp 8802–8808 DOI: 10.1021/ja9714189

Nodulisporic Acid A, a Novel and Potent Insecticide from a Nodulisporium Sp. Isolation, Structure Determination, and Chemical Transformations John G. Ondeyka, Gregory L. Helms, Otto D. Hensens, Michael A. Goetz, Deborah L. Zink, Athanasios Tsipouras, Wesley L. Shoop, Lyndia Slayton, Anne W. Dombrowski, Jon D. Polishook, Dan A. Ostlind, Nancy N. Tsou, Richard G. Ball, and Sheo B. Singh pp 8809–8816 DOI: 10.1021/ja971664k

Sequential Cyclization/Silylation of Enynes Catalyzed by an Organoyttrium Complex Gary A. Molander and William H. Retsch pp 8817–8825 DOI: 10.1021/ja971538g Supporting Info

Macrocycle Formation by Catalytic Intramolecular Cyclopropanation. A New General Methodology for the Synthesis of Macrolides Michael P. Doyle, Chad S. Peterson, Marina N. Protopopova, Alan B. Marnett, Dann L. Parker, Jr., Doina G. Ene, and Vincent Lynch pp 8826–8837 DOI: 10.1021/ja971687z Supporting Info

Heavy-Atom Isotope Effects on the Hydrazinolysis of Methyl Formate John F. Marlier, Brandy A. Haptonstall, Amanda J. Johnson, and Katherine A. Sacksteder pp 8838–8842 DOI: 10.1021/ja970993+

Electrophile-Promoted Carbon−Sulfur Bond Cleavage in η2-Thiophene Complexes of Pentaammineosmium(II) Michael L. Spera and W. Dean Harman pp 8843–8851 DOI: 10.1021/ja970941k Supporting Info

Soluble Silica with High Affinity for Aluminum under Physiological and Natural Conditions Paul D. Taylor, Ravin Jugdaohsingh, and Jonathan J. Powell pp 8852–8856 DOI: 10.1021/ja964476n

Macrocyclic [CuI/II(bite)]+/2+ (bite = biphenyldiimino dithioether):  An Example of Fully-Gated Electron Transfer and Its Biological Relevance1 Scott Flanagan, Jun Dong, Kenneth Haller, Shengke Wang, W. Robert Scheidt, Robert A. Scott, Thomas R. Webb, David M. Stanbury, and Lon J. Wilson pp 8857–8868 DOI: 10.1021/ja9644034 Supporting Info

Activation of Diazene and the Nitrogenase Problem:  An Investigation of Diazene-Bridged Fe(II) Centers with Sulfur Ligand Sphere. 1. Electronic Structure Nicolai Lehnert, Beatrix E. Wiesler, Felix Tuczek, Andreas Hennige, and Dieter Sellmann pp 8869–8878 DOI: 10.1021/ja970419y

Activation of Diazene and the Nitrogenase Problem:  An Investigation of Diazene-Bridged Fe(II) Centers with Sulfur Ligand Sphere. 2. Vibrational Properties Nicolai Lehnert, Beatrix E. Wiesler, Felix Tuczek, Andreas Hennige, and Dieter Sellmann pp 8879–8888 DOI: 10.1021/ja970420x

Phenoxyl Radical Complexes of Zinc(II) Achim Sokolowski, Jochen Müller, Thomas Weyhermüller, Robert Schnepf, Peter Hildebrandt, Knut Hildenbrand, Eberhard Bothe, and Karl Wieghardt pp 8889–8900 DOI: 10.1021/ja970417d Supporting Info

Vanadium(V) Hydroxylamido Complexes:  Solid State and Solution Properties1 Anastasios D. Keramidas, Susie M. Miller, Oren P. Anderson, and Debbie C. Crans pp 8901–8915 DOI: 10.1021/ja970747y Supporting Info

Characterization of DNA Probes Immobilized on Gold Surfaces Tonya M. Herne and Michael J. Tarlov pp 8916–8920 DOI: 10.1021/ja9719586

Predicting Multicomponent Phase Equilibria and Free Energies of Transfer for Alkanes by Molecular Simulation Marcus G. Martin and J. Ilja Siepmann pp 8921–8924 DOI: 10.1021/ja964218q

C−H Bond Dissociation Energies of Alkyl Amines:  Radical Structures and Stabilization Energies D. D. M. Wayner, K. B. Clark, A. Rauk, D. Yu, and D. A. Armstrong pp 8925–8932 DOI: 10.1021/ja971365v

Carbohydrate Reaction Intermediates:  Effect of Ring-Oxygen Protonation on the Structure and Conformation of Aldofuranosyl Rings Jamie Kennedy, Jian Wu, Kenneth Drew, Ian Carmichael, and Anthony S. Serianni pp 8933–8945 DOI: 10.1021/ja963727p

13C−1H and 13C−13C Spin-Coupling Constants in Methyl β-d-Ribofuranoside and Methyl 2-Deoxy-β-d-erythro- pentofuranoside:  Correlations with Molecular Structure and Conformation Timothy J. Church, Ian Carmichael, and Anthony S. Serianni pp 8946–8964 DOI: 10.1021/ja970231e

An Unusual Determinant of Chirality. Unique Solution Chemistry and Novel NMR Spectroscopic Changes in Fluxional Re(V)O Complexes with Rearranging meso N2S2 Ligands Lory Hansen, Kwok To Yue, Xiaolong Xu, Malgorzata Lipowska, Andrew Taylor, Jr., and Luigi G. Marzilli pp 8965–8972 DOI: 10.1021/ja964241b

Site-Directed Dichroism As a Method for Obtaining Rotational and Orientational Constraints for Oriented Polymers Isaiah T. Arkin, Kevin R. MacKenzie, and Axel T. Brünger pp 8973–8980 DOI: 10.1021/ja964253x

Carbon-13 Chemical Shift Tensors in Pentaerythritol Fang Liu, Anita M. Orendt, D. W. Alderman, and David M. Grant pp 8981–8984 DOI: 10.1021/ja9700616

Quantitative Measurement of Relaxation Interference Effects between 1HN CSA and 1H−15N Dipolar Interaction:  Correlation with Secondary Structure Marco Tessari, Hans Vis, Rolf Boelens, Robert Kaptein, and Geerten W. Vuister pp 8985–8990 DOI: 10.1021/ja970573k

Molecular Recognition of Carbohydrates by Zinc Porphyrins:  Lewis Acid/Lewis Base Combinations as a Dominant Factor for Their Selectivity Tadashi Mizutani, Takuya Kurahashi, Takeshi Murakami, Noriyoshi Matsumi, and Hisanobu Ogoshi pp 8991–9001 DOI: 10.1021/ja9713183

Formation of Iminium (CNH2) Species from Cyanogen (C2N2) and Hydrogen on Pt(111) P. Mills, D. Jentz, and M. Trenary pp 9002–9009 DOI: 10.1021/ja9706110

Covalency in ArAu+ and Related Species? J. P. Read and A. D. Buckingham pp 9010–9013 DOI: 10.1021/ja970868y

Entropies and Free Energies of Protonation and Proton-Transfer Reactions Allan L. L. East, Brian J. Smith, and Leo Radom pp 9014–9020 DOI: 10.1021/ja970891j Supporting Info

Electronic Structure of Cycloheptatrienyl Sandwich Compounds of Actinides:  An(η7-C7H7)2 (An = Th, Pa, U, Np, Pu, Am) Jun Li and Bruce E. Bursten pp 9021–9032 DOI: 10.1021/ja971149m Supporting Info

Reaction-Path Dynamics and Theoretical Rate Constants for the CH3F + Cl → HCl + CH2F Reaction by Direct Dynamics Method Efrat Rosenman and Michael L. McKee pp 9033–9038 DOI: 10.1021/ja971185l Supporting Info

Dimethylcarbene, Its Radical Cation and Dication Christiane Aubry, Michael J. Polce, John L. Holmes, Paul M. Mayer, and Leo Radom pp 9039–9041 DOI: 10.1021/ja971190p

The Structure of the Free MnF3 MoleculeA Beautiful Example of the Jahn−Teller Effect Magdolna Hargittai, Balázs Réffy, Mária Kolonits, Colin J. Marsden, and Jean-Louis Heully pp 9042–9048 DOI: 10.1021/ja9712128

Polyhomologation. A Living Polymethylene Synthesis K. J. Shea, J. W. Walker, H. Zhu, M. Paz, and J. Greaves pp 9049–9050 DOI: 10.1021/ja972009f Supporting Info

Gas-Phase DNA: Oligothymidine Ion Conformers Cherokee S. Hoaglund, Yansheng Liu, Andrew D. Ellington, Marty Pagel, and David E. Clemmer pp 9051–9052 DOI: 10.1021/ja970652w

Novel Cobalt-Mediated Regio- and Stereoselective Radical Cyclizations Karen L. Salazar, Masood A. Khan, and Kenneth M. Nicholas pp 9053–9054 DOI: 10.1021/ja971852a Supporting Info

Sensitivity-Enhanced Multiple-Quantum MAS NMR of Half-Integer Quadrupolar Nuclei T. Vosegaard, F. H. Larsen, H. J. Jakobsen, P. D. Ellis, and N. C. Nielsen pp 9055–9056 DOI: 10.1021/ja971355u

New Synthetic Technology for the Stereocontrolled Construction of 1,1‘-Disaccharides and 1,1‘:1‘‘,2-Trisaccharides. Synthesis of the FG Ring System of Everninomicin 13,384-1 K. C. Nicolaou, F. L. van Delft, S. R. Conley, H. J. Mitchell, Z. Jin, and R. M. Rodríguez pp 9057–9058 DOI: 10.1021/ja971574f Supporting Info

REDOR 3D:  Heteronuclear Distance Measurements in Uniformly Labeled and Natural Abundance Solids Carl A. Michal and Lynn W. Jelinski pp 9059–9060 DOI: 10.1021/ja9711730

Planar Bilayer Conductance and Fluorescence Studies Confirm the Function and Location of a Synthetic, Sodium-Ion-Conducting Channel in a Phospholipid Bilayer Membrane Ernesto Abel, Glenn E. M. Maguire, Eric S. Meadows, Oscar Murillo, Takashi Jin, and George W. Gokel pp 9061–9062 DOI: 10.1021/ja971098t

Copper-Driven Assembly of a Helical-Peptide-Strapped Zinc Porphyrin Timothy B. Karpishin, Tommaso A. Vannelli, and Kerney Jebrell Glover pp 9063–9064 DOI: 10.1021/ja970761a Supporting Info

A New Stereoselective Method for the Preparation of Allylic Alcohols Eric Oblinger and John Montgomery pp 9065–9066 DOI: 10.1021/ja9719182 Supporting Info

Desymmetrization of meso-1,2-Diols via Chiral Lewis Acid-Mediated Ring-Cleavage of 1,3-Dioxolane Derivatives Motoharu Kinugasa, Toshiro Harada, and Akira Oku pp 9067–9068 DOI: 10.1021/ja9702881 Supporting Info

tert-Butyl Is Superior to Phenyl as an Agostic Donor to 14-Electron Ir(III) Alan C. Cooper, William E. Streib, Odile Eisenstein, and Kenneth G. Caulton pp 9069–9070 DOI: 10.1021/ja970763v Supporting Info

Arene Coordination to Yttrium(III) via Carbon−Carbon Bond Formation Michael D. Fryzuk, Jason B. Love, and Steven J. Rettig pp 9071–9072 DOI: 10.1021/ja9719743 Supporting Info

Enhanced Resolution of Hemoglobin Dynamics Provided by Subunit-Specific Resonance Raman Signals James R. Kincaid, Cynthia Rajani, Leonard M. Proniewicz, and Krzysztof Maruszewski pp 9073–9074 DOI: 10.1021/ja971447j

Asymmetric Intermolecular Carbenoid C−H Insertions Catalyzed by Rhodium(II) (S)-N-(p-Dodecylphenyl)sulfonylprolinate Huw M. L. Davies and Tore Hansen pp 9075–9076 DOI: 10.1021/ja971915p Supporting Info

Synthesis, Isolation, and Full Characterization of the Parent Thiophene 1,1-Dioxide Juzo Nakayama, Hidehiro Nagasawa, Yoshiaki Sugihara, and Akihiko Ishii pp 9077–9078 DOI: 10.1021/ja971934z Supporting Info

A Simple Orthogonal Approach to Poly(phenylenevinylene) Dendrimers Shirshendu K. Deb, Todd M. Maddux, and Luping Yu pp 9079–9080 DOI: 10.1021/ja971790o Supporting Info

Geometry-Dependent Quenching of Singlet Oxygen by Dialkyl Disulfides E. L. Clennan, Dongyi Wang, C. Clifton, and M.-F. Chen pp 9081–9082 DOI: 10.1021/ja9720568

Variation in Strength of an Unconventional C−H to O Hydrogen Bond in an Engineered Protein Cavity Rabi A. Musah, Gerard M. Jensen, Robin J. Rosenfeld, Duncan E. McRee, and David B. GoodinSteven W. Bunte pp 9083–9084 DOI: 10.1021/ja9716766

Handbook of Grignard Reagents Edited by Gary S. Silverman (Elf Atochem North America, Inc.) and Phillip E. Rakita (Elf Atochem Agri, SA). Marcel Dekker, Inc.:  Monticello. 1996. xxiii + 708 pp. $225.00. ISBN 0-8247-9545-8. E. C. Ashby pp 9085–9086 DOI: 10.1021/ja9656964

X-Ray Analysis and Structure of Organic Molecules, 2nd Corrected Edition By Jack D. Dunitz (ETH-Zurich). VCH:  New York, 1995. 514 pp. $70.00. ISBN 3-906390-14-4. p 9086 DOI: 10.1021/ja9553563

Silicon-Containing Polymers Edited by Richard G. Jones (University of Kent at Canterbury). The Royal Society of Chemistry:  Cambridge, 1995. xiii + 197 pp. $88.00. ISBN 0-85404-745-X. p 9086 DOI: 10.1021/ja965613j

Henderson's Dictionary of Biological Terms, 11th Edition Edited by Eleanor Lawrence. Wiley:  New York, 1995. ix + 693 pp. $39.95. ISBN 0-470-23507-1. p 9086 DOI: 10.1021/ja965614b

Comprehensive Heterocyclic Chemistry II:  A Review of the Literature 1982−1995. 12 Volume Set Editors-in-chief:  Alan R. Katritzky, Charles W. Rees, and Eric, F. V. Scriven. Elsevier (Pergamon):  Oxford. 1997. 11 856 pp. $6345.00. ISBN 0-08-042072-9. David Flaxbart p 9086 DOI: 10.1021/ja975563y

Issue 39

ω-Amino Acids in Peptide Design. Crystal Structures and Solution Conformations of Peptide Helices Containing a β-Alanyl-γ-Aminobutyryl Segment I. L. Karle, Animesh Pramanik, Arindam Banerjee, Surajit Bhattacharjya, and P. Balaram pp 9087–9095 DOI: 10.1021/ja970566w Supporting Info

Protein Engineering Using Molecular Assembly:  Functional Conversion of Cytochrome c via Noncovalent Interactions Itaru Hamachi, Akio Fujita, and Toyoki Kunitake pp 9096–9102 DOI: 10.1021/ja9711775

Separation of Ground State and Transition State Effects in Intramolecular and Enzymatic Reactions. 2. A Theoretical Study of the Formation of Transition States in Cyclic Anhydride Formation Felice C. Lightstone and Thomas C. Bruice pp 9103–9113 DOI: 10.1021/ja970982g

NAD+-Dependent Enzyme Electrodes:  Electrical Contact of Cofactor-Dependent Enzymes and Electrodes Amos Bardea, Eugenii Katz, Andreas F. Bückmann, and Itamar Willner pp 9114–9119 DOI: 10.1021/ja971192+

Fluid and Chiral Ephedrinium Myristate Micellar Fibers Otto Träger, Silke Sowade, Christoph Böttcher, and Jürgen-Hinrich Fuhrhop pp 9120–9124 DOI: 10.1021/ja971803y

Equilibrium Acidities and Homolytic Bond Dissociation Energies (BDEs) of the Acidic H−N Bonds in Hydrazines and Hydrazides Yongyu Zhao, Frederick G. Bordwell, Jin-Pei Cheng, and Difei Wang pp 9125–9129 DOI: 10.1021/ja971230p

Total Syntheses of (+)-Ricinelaidic Acid Lactone and of (−)-Gloeosporone Based on Transition-Metal-Catalyzed C−C Bond Formations Alois Fürstner and Klaus Langemann pp 9130–9136 DOI: 10.1021/ja9719945 Supporting Info

Facile Synthesis of Fluorinated Phosphonates via Photochemical and Thermal Reactions Haridasan K. Nair and Donald J. Burton pp 9137–9143 DOI: 10.1021/ja971345t

Supramolecular Aggregates of Azobenzene Phospholipids and Related Compounds in Bilayer Assemblies and Other Microheterogeneous Media:  Structure, Properties, and Photoreactivity1 Xuedong Song, Jerry Perlstein, and David G. Whitten pp 9144–9159 DOI: 10.1021/ja971291n

New Crown Spirobenzopyrans as Light- and Ion-Responsive Dual-Mode Signal Transducers Masahiko Inouye, Kaori Akamatsu, and Hiroyuki Nakazumi pp 9160–9165 DOI: 10.1021/ja9707668

Ring-Opening-Metathesis Polymerization for the Preparation of Carboxylic-Acid-Functionalized, High-Capacity Polymers for Use in Separation Techniques Michael R. Buchmeiser, Norbert Atzl, and Günther K. Bonn pp 9166–9174 DOI: 10.1021/ja970359w

Poly-hetero-ω-functionalized Alkanethiolate-Stabilized Gold Cluster Compounds Roychelle S. Ingram, Michael J. Hostetler, and Royce W. Murray pp 9175–9178 DOI: 10.1021/ja971734n

Why Does D2 Bind Better Than H2? A Theoretical and Experimental Study of the Equilibrium Isotope Effect on H2 Binding in a M(η2-H2) Complex. Normal Coordinate Analysis of W(CO)3(PCy3)2(η2-H2) Bruce R. Bender, Gregory J. Kubas, Llewellyn H. Jones, Basil I. Swanson, Juergen Eckert, Kenneth B. Capps, and Carl D. Hoff pp 9179–9190 DOI: 10.1021/ja971009c

Ionoelectronics. Pillarlike Aggregates Formed via Highly Nonlinear Complexation Processes. A Light-Scattering Study Thierry Toupance, Henri Benoit, Dominique Sarazin, and Jacques Simon pp 9191–9197 DOI: 10.1021/ja9644438

Organometallic Reactivity on a Calix[4]arene Oxo Surface. Synthesis and Rearrangement of Zr−C Functionalities Anchored to a Calix[4]arene Moiety Luca Giannini, Alessandro Caselli, Euro Solari, Carlo Floriani, Angiola Chiesi-Villa, Corrado Rizzoli, Nazzareno Re, and Antonio Sgamellotti pp 9198–9210 DOI: 10.1021/ja970821c Supporting Info

Protonation-State-Dependent Luminescence and Excited-State Electron-Transfer Reactions of 2- and 4-Pyridine (-ium)-Substituted Metallo-1,2-enedithiolates Sharada P. Kaiwar, Anthony Vodacek, Neil V. Blough, and Robert S. Pilato pp 9211–9214 DOI: 10.1021/ja970834q Supporting Info

Spectroscopic Characterization of Inhibitor Interactions with the Mn(III)/Mn(IV) Core in Lactobacillus plantarum Manganese Catalase Timothy L. Stemmler, Bradley E. Sturgeon, David W. Randall, R. David Britt, and James E. Penner-Hahn pp 9215–9225 DOI: 10.1021/ja9704040 Supporting Info

Nanoscopic Surface Architecture Based on Scanning Probe Electrochemistry and Molecular Self-Assembly Hiroyuki Sugimura and Nobuyuki Nakagiri pp 9226–9229 DOI: 10.1021/ja971027u

Significant Effect of Salt Bridges on Electron Transfer James P. Kirby, James A. Roberts, and Daniel G. Nocera pp 9230–9236 DOI: 10.1021/ja970176+ Supporting Info

Dissociative Electron Transfer, Substitution, and Borderline Mechanisms in Reactions of Ketyl Radical Anions. Differences and Difficulties in Their Reaction Paths Sason Shaik, David Danovich, G. Narahari Sastry, Philippe Y. Ayala, and H. Bernhard Schlegel pp 9237–9245 DOI: 10.1021/ja971105d Supporting Info

Characterization of Helix Terminating Schellman Motifs in Peptides. Crystal Structure and Nuclear Overhauser Effect Analysis of a Synthetic Heptapeptide Helix Saumen Datta, N. Shamala, Arindam Banerjee, Animesh Pramanik, Surajit Bhattacharjya, and P. Balaram pp 9246–9251 DOI: 10.1021/ja970551y Supporting Info

Site-Hopping Dynamics of Benzene Adsorbed on Ca-LSX Zeolite Studied by Solid-State Exchange 13C NMR D. J. Schaefer, D. E. Favre, M. Wilhelm, S. J. Weigel, and B. F. Chmelka pp 9252–9267 DOI: 10.1021/ja971563m

High-Resolution Vibrational Inelastic Neutron Scattering:  A New Spectroscopic Tool for Globular Proteins Anne V. Goupil-Lamy, Jeremy C. Smith, Junko Yunoki, Stewart F. Parker, and Mikio Kataoka pp 9268–9273 DOI: 10.1021/ja9713643

Sensitivity Enhancement of Triple-Resonance Protein NMR Spectra by Proton Evolution of Multiple-Quantum Coherences Using a Simultaneous 1H and 13C Constant-Time Evolution Period Zhigang Shang, G. V. T. Swapna, Carlos B. Rios, and Gaetano T. Montelione pp 9274–9278 DOI: 10.1021/ja970734k Supporting Info

28 kDa Alkanethiolate-Protected Au Clusters Give Analogous Solution Electrochemistry and STM Coulomb Staircases Roychelle S. Ingram, Michael J. Hostetler, Royce W. Murray, T. Gregory Schaaff, Joseph T. Khoury, Robert L. Whetten, Terry P. Bigioni, Daniel K. Guthrie, and Phillip N. First pp 9279–9280 DOI: 10.1021/ja972319y Supporting Info

Evidence for Novel Interdigitated Bilayer Formation of Fatty Acids during Three-Dimensional Self-Assembly on Silver Colloidal Particles Vijaya Patil, K. S. Mayya, S. D. Pradhan, and Murali Sastry pp 9281–9282 DOI: 10.1021/ja971161e Supporting Info

Aza-Crown Ether:  1,2-Dicarbadodecaborane(12) Supramolecular Assemblies Peter D. Godfrey, Warren J. Grigsby, Peter J. Nichols, and Colin L. Raston pp 9283–9284 DOI: 10.1021/ja971314y Supporting Info

Cyclocinamide A. An Unusual Cytotoxic Halogenated Hexapeptide from the Marine Sponge Psammocinia William D. Clark, Thomas Corbett, Fred Valeriote, and Phillip Crews pp 9285–9286 DOI: 10.1021/ja971638m Supporting Info

Preparation and Reactivity of Solvated Distonic Ions and Ionized Enols in the Gas Phase V. Troude, G. van der Rest, P. Mourgues, and H. E. Audier pp 9287–9288 DOI: 10.1021/ja9707365 Supporting Info

The Exo-Cyclic Effect:  Strategy Employing in Situ Derivatization or Lewis Acid Complexation to Enhance Stereoselectivity in Hydrogen Transfer Reactions Yvan Guindon, Ziping Liu, and Grace Jung pp 9289–9290 DOI: 10.1021/ja972064o Supporting Info

57Fe Q-Band Pulsed ENDOR of the Hetero-Dinuclear Site of Nickel Hydrogenase:  Comparison of the NiA, NiB, and NiC States J. E. Huyett, M. Carepo, A. Pamplona, R. Franco, I. Moura, J. J. G. Moura, and B. M. Hoffman pp 9291–9292 DOI: 10.1021/ja9700919

Stereogenic P-Trisubstituted Phosphorus by Crystallization-Induced Asymmetric Transformation:  A Practical Synthesis of Phenyl(o-anisyl)methylphosphine Borane Edwin Vedejs and Yariv Donde pp 9293–9294 DOI: 10.1021/ja970369x Supporting Info

Catalyst Enhanced Chemical Vapor Deposition:  Effects on Chemical Vapor Deposition Temperature and Film Purity Yiping Zhang, Sam W.-K. Choi, and Richard J. Puddephatt pp 9295–9296 DOI: 10.1021/ja971588l Supporting Info

The First Binuclear Mn(IV) Complex Containing a Bridging Imidazolate Ligand Exhibits Unique EPR Spectral Features M. Tyler Caudle, Jeff W. Kampf, Martin L. Kirk, Paul G. Rasmussen, and Vincent L. Pecoraro pp 9297–9298 DOI: 10.1021/ja9715197 Supporting Info

Distorted Square Planar Ni(II)−Chalcogenolate Carbonyl Complexes [Ni(CO)(SPh)n(SePh)3-n]- (n = 0, 1, 2):  Relevance to the Nickel Site in CO Dehydrogenases and [NiFeSe] Hydrogenase Wen-Feng Liaw, Yih-Chern Horng, Der-Shiaw Ou, Chao-Yi Ching, Gene-Hsiang Lee, and Shie-Ming Peng pp 9299–9300 DOI: 10.1021/ja971705c Supporting Info

Alkali-Ion-Catalyzed Transformation of Two Linear Uranyl Phosphonates into a Tubular One Daniel Grohol and Abraham Clearfield pp 9301–9302 DOI: 10.1021/ja972181j

Chemistry Induced by Hydrodynamic Cavitation Kenneth S. Suslick, Millan M. Mdleleni, and Jeffrey T. Ries pp 9303–9304 DOI: 10.1021/ja972171i

Ethoxyboratabenzene Zirconium Complexes:  Catalysts for α-Olefin Production Jonathan S. Rogers, Guillermo C. Bazan, and Caroline K. Sperry pp 9305–9306 DOI: 10.1021/ja971976n Supporting Info

Rhodium(I)-Catalyzed Successive Double Cleavage of Carbon−Carbon Bonds of Strained Spiro Cyclobutanones Masahiro Murakami, Kunio Takahashi, Hideki Amii, and Yoshihiko Ito pp 9307–9308 DOI: 10.1021/ja971949x Supporting Info

Rhenium-Catalyzed Oxidation of Thiols and Disulfides with Sulfoxides Jeffrey B. Arterburn, Marc C. Perry, Sherry L. Nelson, Benjamin R. Dible, and Mylena S. Holguin pp 9309–9310 DOI: 10.1021/ja972013r Supporting Info

Conformational Restriction of Cysteine-Bound NO in Bovine Serum Albumin Revealed by Circular Dichroism Brian K. Mohney and Gilbert C. Walker pp 9311–9312 DOI: 10.1021/ja971119j

Synthesis of a Hydrocarbon Salt Having a Fullerene Framework Toru Tanaka, Toshikazu Kitagawa, Koichi Komatsu, and Ken'ichi Takeuchi pp 9313–9314 DOI: 10.1021/ja970006x Supporting Info

Isolation of a Reactive Iron Silyl Silylene by Complexation to Chromium Carbonyl:  (η5-C5R5)Fe(CO)SiMe2(η6-C6H5Cr(CO)2)(μ-SiMe2) Keith H. Pannell, Hemant K. Sharma, Ramesh N. Kapoor, and Francisco Cervantes-Lee pp 9315–9316 DOI: 10.1021/ja9714292 Supporting Info

Concise Route to Symmetric Multiadducts of [60]Fullerene:  Preparation of an Equatorial Tetraadduct by Orthogonal Transposition Reinhold Schwenninger, Thomas Müller, and Bernhard Kräutler pp 9317–9318 DOI: 10.1021/ja971875p

Enantioselective Aldol Reaction of Tin Enolates with Aldehydes Catalyzed by BINAP·Silver(I) Complex Akira Yanagisawa, Yukari Matsumoto, Hiroshi Nakashima, Kenichi Asakawa, and Hisashi Yamamoto pp 9319–9320 DOI: 10.1021/ja970203w Supporting Info

Masked α-Arylalkenyllithium Reagents for Efficient Syntheses of Functionalized Monosubstituted and 1,1-Disubstituted Ethylenes Alan R. Katritzky and Dorin Toader pp 9321–9322 DOI: 10.1021/ja972037y Supporting Info

Remarkably Rapid Cleavage of a Model Phosphodiester by Complexed Ceric Ions in Aqueous Micellar Solutions Kathryn Bracken, Robert A. Moss, and Kaliappa G. Ragunathan pp 9323–9324 DOI: 10.1021/ja971448b

Crystal Structure of Tetradeca-(3-Fluorotyrosyl)-Glutathione Transferase Gaoyi Xiao, James F. Parsons, Richard N. Armstrong, and Gary L. Gilliland pp 9325–9326 DOI: 10.1021/ja972608m

Recognition and Stabilization of an α-Helical Peptide by a Synthetic Receptor Mark W. Peczuh, Andrew D. Hamilton, Jorge Sánchez-Quesada, Javier de Mendoza, Thomas Haack, and Ernest Giralt pp 9327–9328 DOI: 10.1021/ja970951l

Molecular Cluster Bowl To Enclose a Single Electron Kwang S. Kim, Sik Lee, Jongseob Kim, and Jin Yong Lee pp 9329–9330 DOI: 10.1021/ja9712377

Issue 40

Dipole Formation and Solvent Electrostriction in Subtilisin Catalysis Peter C. Michels, Jonathan S. Dordick, and Douglas S. Clark pp 9331–9335 DOI: 10.1021/ja9713892

Using Capillary Electrophoresis To Study the Electrostatic Interactions Involved in the Association of d-Ala-d-Ala with Vancomycin Jianghong Rao, Ian J. Colton, and George M. Whitesides pp 9336–9340 DOI: 10.1021/ja971146+

Solution NMR Study of the Electronic Structure and Magnetic Properties of Cluster Ligation Mutants of the Four-Iron Ferredoxin from the Hyperthermophilic Archaeon Pyrococcus furiosus Luigi Calzolai, Carol M. Gorst, Kara L. Bren, Zhi-Hao Zhou, Michael W. W. Adams, and Gerd N. La Mar pp 9341–9350 DOI: 10.1021/ja9715455 Supporting Info

The Two Conformations of Hindered Photochromic 4a,4b-Dihydrophenanthrenes K. A. Muszkat, M. Eisenstein, E. Fischer, A. Wagner, Y. Ittah, and W. Lüttke pp 9351–9360 DOI: 10.1021/ja962575v Supporting Info

Intramolecular Assistance of Electron Transfer. Oxidative Cleavage of the Carbon−Tin Bond of Tetraalkylstannanes Jun-ichi Yoshida and Mitsuhiko Izawa pp 9361–9365 DOI: 10.1021/ja970899t Supporting Info

Secondary Bonding as a Force Dictating Structure and Solid-State Aggregation of the Primary Nitrene Sources (Arylsulfonylimino)iodoarenes (ArINSO2Ar‘) Michelle Boucher, Dainius Macikenas, Tong Ren, and John D. Protasiewicz pp 9366–9376 DOI: 10.1021/ja971048o Supporting Info

The Addition of Malonates to Glycals:  A General and Convenient Method for the Synthesis of 2-C-Branched Carbohydrates Torsten Linker, Thomas Sommermann, and Frank Kahlenberg pp 9377–9384 DOI: 10.1021/ja971084n

Chiral Recognition of Dicarboxylate Anions by Sapphyrin-Based Receptors Jonathan L. Sessler, Andrei Andrievsky, Vladimír Král, and Vincent Lynch pp 9385–9392 DOI: 10.1021/ja971614f Supporting Info

Charge-Transfer Probes for Molecular Recognition via Steric Hindrance in Donor-Acceptor Pairs R. Rathore, S. V. Lindeman, and J. K. Kochi pp 9393–9404 DOI: 10.1021/ja9720319 Supporting Info

1,1,3,3-Tetraoxo-1,2,3-triazapropene Anion, a New Oxy Anion of Nitrogen:  The Dinitramide Anion and Its Salts Jeffrey C. Bottaro, Paul E. Penwell, and Robert J. Schmitt pp 9405–9410 DOI: 10.1021/ja9709278

A New Class of Flexible Energetic Salts:  The Crystal Structures of the Ammonium, Lithium, Potassium, and Cesium Salts of Dinitramide Richard Gilardi, J. Flippen-Anderson, Clifford George, and Ray J. Butcher pp 9411–9416 DOI: 10.1021/ja9709280 Supporting Info

Synthesis, Structure, and Reactivity of η2-Phosphabenzyne−Zirconocene Dimers Patrick Rosa, Pascal Le Floch, Louis Ricard, and François Mathey pp 9417–9423 DOI: 10.1021/ja971679i Supporting Info

Synthesis, Structural, Magnetic, and Redox Properties of Asymmetric Diiron Complexes with a Single Terminally Bound Phenolate Ligand. Relevance to the Purple Acid Phosphatase Enzymes Elisabeth Lambert, Barbara Chabut, Sylvie Chardon-Noblat, Alain Deronzier, Geneviève Chottard, Azzedine Bousseksou, Jean-Pierre Tuchagues, Jean Laugier, Michel Bardet, and Jean-Marc Latour pp 9424–9437 DOI: 10.1021/ja970345q Supporting Info

Models of the Cytochromes. Axial Ligand Orientation and Complex Stability in Iron(II) Porphyrinates:  The Case of the Noninteracting dπ Orbitals Martin K. Safo, Marlys J. M. Nesset, F. Ann Walker, Peter G. Debrunner, and W. Robert Scheidt pp 9438–9448 DOI: 10.1021/ja9715657 Supporting Info

Multinuclear Magnetic Resonance Spectroscopy of Centered Zirconium Halide Clusters Jerry D. Harris and Timothy Hughbanks pp 9449–9459 DOI: 10.1021/ja9713789 Supporting Info

Intrazeolite Complexation of Transition Metal Ions by Triazacyclononane-Type Ligands:  Control of Cluster Nuclearity and Oxygen Binding in Confined Reaction Spaces Dirk De Vos and Thomas Bein pp 9460–9465 DOI: 10.1021/ja9629266

Magnetic-Field-Induced Orientational Ordering of Alkaline Lyotropic Silicate−Surfactant Liquid Crystals A. Firouzi, D. J. Schaefer, S. H. Tolbert, G. D. Stucky, and B. F. Chmelka pp 9466–9477 DOI: 10.1021/ja971267+

Role of Conjugation in the Stabilities and Rotational Barriers of Formamide and Thioformamide. An ab Initio Valence-Bond Study David Lauvergnat and Philippe C. Hiberty pp 9478–9482 DOI: 10.1021/ja9639426

Computed 13C NMR Chemical Shifts via Empirically Scaled GIAO Shieldings and Molecular Mechanics Geometries. Conformation and Configuration from 13C Shifts David A. Forsyth and Albert B. Sebag pp 9483–9494 DOI: 10.1021/ja970112z Supporting Info

Interactions between the Protonated Schiff Base and Its Counterion in the Photointermediates of Bacteriorhodopsin Jingui G. Hu, Robert G. Griffin, and Judith Herzfeld pp 9495–9498 DOI: 10.1021/ja9706007

Positive Ion Chemistry of Elemental Fluorine Romano Cipollini, Maria Elisa Crestoni, and Simonetta Fornarini pp 9499–9503 DOI: 10.1021/ja971290v

The Remarkably Stabilized Trilithiocyclopropenium Ion, C3Li3+, and Its Relatives Eluvathingal D. Jemmis, Govindan Subramanian, Alexander J. Kos, and Paul v. R. Schleyer pp 9504–9512 DOI: 10.1021/ja970589a Supporting Info

Molecular Dynamics of Acetylcholinesterase Dimer Complexed with Tacrine Stanislaw T. Wlodek, Terry W. Clark, L. Ridgway Scott, and J. Andrew McCammon pp 9513–9522 DOI: 10.1021/ja971226d

Calculations of the Equilibrium Isotope Effects on the Reductions of Benzene-d6 and Cyclooctatetraene-d8 David A. Hrovat, J. H. Hammons, Cheryl D. Stevenson, and Weston Thatcher Borden pp 9523–9526 DOI: 10.1021/ja9714144 Supporting Info

Dynamics of Bond Breaking in Ion Radicals. Mechanisms and Reactivity in the Reductive Cleavage of Carbon−Fluorine Bonds of Fluoromethylarenes Claude P. Andrieux, Catherine Combellas, Fredéric Kanoufi, Jean-Michel Savéant, and André Thiébault pp 9527–9540 DOI: 10.1021/ja971094o Supporting Info

Electroreduction of Dialkyl Peroxides. Activation−Driving Force Relationships and Bond Dissociation Free Energies1a Sabrina Antonello, Martin Musumeci, Danial D. M. Wayner, and Flavio Maran pp 9541–9549 DOI: 10.1021/ja971416o Supporting Info

Synthesis, Characterization, Optical Spectroscopic, Electronic Structure, and Second-Order Nonlinear Optical (NLO) Properties of a Novel Class of Donor−Acceptor Bis(salicylaldiminato)nickel(II) Schiff Base NLO Chromophores Santo Di Bella, Ignazio Fragalà, Isabelle Ledoux, Maria A. Diaz-Garcia, and Tobin J. Marks pp 9550–9557 DOI: 10.1021/ja971349y

A Chemically Achiral Molecule with No Rigidly Achiral Presentations Jean-Claude Chambron and Jean-Pierre SauvageKurt Mislow pp 9558–9559 DOI: 10.1021/ja971598m Supporting Info

Retinoic Acid Oxidation at High Oxygen Pressures:  Evidence for Spin-Forbidden Direct Addition of Triplet Molecular Oxygen1 K. Brady Clark, J. A. Howard, and Alan R. Oyler pp 9560–9561 DOI: 10.1021/ja970774o

Rapid Formation of a Four-Helix Bundle. Cytochrome b562 Folding Triggered by Electron Transfer Pernilla Wittung-Stafshede, Harry B. Gray, and Jay R. Winkler pp 9562–9563 DOI: 10.1021/ja971855n

Femtosecond Infrared Studies of Silane Silicon−Hydrogen Bond Activation H. Yang, K. T. Kotz, M. C. Asplund, and C. B. Harris pp 9564–9565 DOI: 10.1021/ja9716362

Low-Temperature Synthesis of Aluminum Sulfide as the Solvate Al4S6(NMe3)4 in Hydrocarbon Solution Rudolf J. Wehmschulte and Philip P. Power pp 9566–9567 DOI: 10.1021/ja972111c Supporting Info

A Combinatorial Approach to Identifying Protein Tyrosine Phosphatase Substrates from a Phosphotyrosine Peptide Library Yee Wah Cheung, Chris Abell, and Shankar Balasubramanian pp 9568–9569 DOI: 10.1021/ja971825k Supporting Info

Novel Spiro Phosphinite Ligands and Their Application in Homogeneous Catalytic Hydrogenation Reactions Albert S. C. Chan, Wenhao Hu, Cheng-Chao Pai, and Chak-Po LauYaozhong Jiang, Aiqiao Mi, Ming Yan, Jian Sun, Rongliang Lou, and Jingen Deng pp 9570–9571 DOI: 10.1021/ja970955q Supporting Info

Trimethylperoxonium Ion, CH3OO(CH3)2+ 1 George A. Olah, Golam Rasul, Arwed Burrichter, Mohammed Hachoumy, G. K. Surya Prakash, Ross I. Wagner, and Karl O. Christe pp 9572–9573 DOI: 10.1021/ja9715511

Radical Cations of Ethano-Bridged Dicyclopropyl Systems:  Remarkable Stereoelectronic Effects Torsten Herbertz and Heinz D. Roth pp 9574–9575 DOI: 10.1021/ja9706209 Supporting Info

Large Variations in 13Cα Chemical Shift Anisotropy in Proteins Correlate with Secondary Structure Nico Tjandra and Ad Bax pp 9576–9577 DOI: 10.1021/ja9721374 Supporting Info

Efficient Catalysis of Proton Transfer by Synzymes Florian Hollfelder, Anthony J. Kirby, and Dan S. Tawfik pp 9578–9579 DOI: 10.1021/ja971970y Supporting Info

Importance of Mechanistic Imperatives in Enzyme-Catalyzed β-Elimination Reactions:  Stereochemical Consequences of the Dehydration Reactions Catalyzed by d-Galactonate Dehydratase from Escherichia coli and d-Glucarate Dehydratase from Pseudomonas putida David R. J. Palmer, Stacey J. Wieczorek, Brian K. Hubbard, Gregory T. Mrachko, and John A. Gerlt pp 9580–9581 DOI: 10.1021/ja970977c

Pressure Effects on Electron Transfer Rates in Zinc/Ruthenium Modified Myoglobins Yoichi Sugiyama, Satoshi Takahashi, Koichiro Ishimori, and Isao Morishima pp 9582–9583 DOI: 10.1021/ja971138t

Synthetic Studies toward the Kempane Diterpenes:  Preparation of the Ring System Chunjian Liu and D. Jean Burnell pp 9584–9585 DOI: 10.1021/ja971769n Supporting Info

Hydration of Gas-Phase Proteins:  A Special Hydration Site on Gas-Phase BPTI Jürgen Woenckhaus, Robert R. Hudgins, and Martin F. Jarrold pp 9586–9587 DOI: 10.1021/ja971236e

Electron Transfer from C76 (C2v‘) and C78 (D2) to Radical Cations of Various Arenes:  Evidence for the Marcus Inverted Region J. Am. Chem. Soc. 1997, 119, 5744−5745 Dirk M. Guldi and Klaus-Dieter Asmus p 9588 DOI: 10.1021/ja975412v

Chemical Structure of Blepharismin, the Photosensor Pigment for Blepharisma japonicum J. Am. Chem. Soc. 1997, 119, 5762−5763 Giovanni Checcucci, Richard K. Shoemaker, Elisabetta Bini, Ronald Cerny, Nengbing Tao, Jae-Seok Hyon, Domenico Gioffre, Francesco Ghetti, Francesco Lenci, and Pill-Soon Song p 9588 DOI: 10.1021/ja975413n

Facile Metathetical Exchange between Carbon Dioxide and the Divalent Group 14 Bisamides M[N(SiMe3)2]2 (M = Ge and Sn) J. Am. Chem. Soc. 1996, 118, 10912−10913 Lawrence R. Sita, Jason R. Babcock, and Rimo Xi p 9588 DOI: 10.1021/ja975414f

Studies on the Biosynthesis of Paraherquamide A. Origin of the β-Methylproline Ring J. Am. Chem. Soc. 1996, 118, 7008−7009 Emily M. Stocking, Juan F. Sanz-Cervera, Robert M. Williams, and Clifford J. Unkefer p 9588 DOI: 10.1021/ja9754158

Axum Version 5.0 for Windows MathSoft, Inc.:  101 Main Street, Cambridge, Massachusetts, 02142; (617) 577-1017. $199.95. Susan B. Sinnott pp 9588–9589 DOI: 10.1021/ja975902n

Thermal Characterization of Polymeric Materials. Second Edition Volumes 1 and 2 Edited by Edith A. Turi (Polytechnic University, New York). Academic Press:  San Diego. 1997. xxiv + 2420 pp. ISBN 0-12-703783-7. Rita B. Blumstein pp 9589–9590 DOI: 10.1021/ja975533v

Calcium Hypothesis of Aging and Dementia Edited by John F. Disterhoft (Northwestern University Medical School), William H. Gispen (Rudoph Magnus Institute), Jorg Traber (Tropenwerke, GmBH), and Zaven S. Khachaturian (National Institute on Aging, NIH). Annals of the New York Academy of Sciences:  New York, 1995. 482 pp. $130.00. ISBN 0-89766-878-2. p 9590 DOI: 10.1021/ja9656154

Development and Validation of Analytical Methods Edited by Christopher M. Riley (Du Pont Merck Pharmaceutical Co.) and Thomas W. Rosanske (Hoechst Marion Roussel, Inc.). Elsevier:  Oxford, U.K., 1996. x + 352 pp. $88.00. ISBN 0-08-0427928. Ira S. KrullMichael E. Swartz p 9590 DOI: 10.1021/ja965714h

Issue 41

Synthesis and Chemistry of 1,3,5,7-Tetranitrocubane Including Measurement of Its Acidity, Formation of o-Nitro Anions, and the First Preparations of Pentanitrocubane and Hexanitrocubane1 Kirill A. Lukin, Jianchang Li, Philip E. Eaton, Nobuhiro Kanomata, Jürgen Hain, Eric Punzalan, and Richard Gilardi pp 9591–9602 DOI: 10.1021/ja970552q Supporting Info

Structural Characterization of Co·Bleomycin A2 Brown:  Free and Bound to d(CCAGGCCTGG) Siu Man Lui, Dana E. Vanderwall, Wei Wu, Xue-Jun Tang, Christopher J. Turner, John W. Kozarich, and JoAnne Stubbe pp 9603–9613 DOI: 10.1021/ja963889l Supporting Info

Characterization of Species Present in Aqueous Solutions of [Hydroxy(mesyloxy)iodo]benzene and [Hydroxy(tosyloxy)iodo]benzene Helen Wilkinson Richter, Brian R. Cherry, Teresa D. Zook, and Gerald F. Koser pp 9614–9623 DOI: 10.1021/ja971751c

Imine-Bridged Planar Poly(phenylenethiophene)s and Polythiophenes Qing T. Zhang and James M. Tour pp 9624–9631 DOI: 10.1021/ja964223u Supporting Info

Spirocyclic Peptidomimetics Featuring 2,3-Methanoamino Acids Dongyeol Lim and Kevin Burgess pp 9632–9640 DOI: 10.1021/ja971629d Supporting Info

Design and Implementation of an Efficient Synthetic Approach to Furanosylated Indolocarbazoles:  Total Synthesis of (+)- and (−)-K252a John L. Wood, Brian M. Stoltz, Hans-Jürgen Dietrich, Derek A. Pflum, and Dejah T. Petsch pp 9641–9651 DOI: 10.1021/ja9713035 Supporting Info

Design and Implementation of an Efficient Synthetic Approach to Pyranosylated Indolocarbazoles:  Total Synthesis of (+)-RK286c, (+)-MLR-52, (+)-Staurosporine, and (−)-TAN-1030a John L. Wood, Brian M. Stoltz, Steven N. Goodman, and Kenolisa Onwueme pp 9652–9661 DOI: 10.1021/ja971304x Supporting Info

First Synthesis of Cytotoxic 8,9-Secokaurene Diterpenoids. An Enantioselective Route to (−)-O-Methylshikoccin and (+)-O-Methylepoxyshikoccin Leo A. Paquette, Dirk Backhaus, Ralf Braun, Ted L. Underiner, and Klaus Fuchs pp 9662–9671 DOI: 10.1021/ja971527n Supporting Info

Conformation and Stereodynamics of Decaethylbiphenyl Vered Marks, Hugo E. Gottlieb, and Silvio E. Biali pp 9672–9679 DOI: 10.1021/ja971730i Supporting Info

Formation and Spectroscopic Characterization of Chelated d0 Yttrium(III)−Alkyl−Alkene Complexes Charles P. Casey, Susan L. Hallenbeck, J. Monty Wright, and Clark R. Landis pp 9680–9690 DOI: 10.1021/ja9632567 Supporting Info

Dihydrido and Trihydrido Diolefin Complexes Stabilized by the Os(PiPr3)2 Unit:  New Examples of Quantum Mechanical Exchange Coupling in Trihydrido Osmium Compounds Amaya Castillo, Miguel A. Esteruelas, Enrique Oñate, and Natividad Ruiz pp 9691–9698 DOI: 10.1021/ja9700212 Supporting Info

Group 5 Metallocene Complexes as Models for Metal-Mediated Hydroboration:  Synthesis of a Reactive Borane Adduct, endo-Cp*2Nb(H2BO2C6H4), via Hydroboration of Coordinated Olefins Dean R. Lantero, Donald L. Ward, and Milton R. Smith, III pp 9699–9708 DOI: 10.1021/ja970639b Supporting Info

Organometallic Reactivity on a Calix[4]arene Oxo Surface. The Stepwise Migratory Insertion of Carbon Monoxide and Isocyanides into Zirconium−Carbon Bonds Anchored to a Calix[4]arene Moiety Luca Giannini, Alessandro Caselli, Euro Solari, Carlo Floriani, Angiola Chiesi-Villa, Corrado Rizzoli, Nazzareno Re, and Antonio Sgamellotti pp 9709–9719 DOI: 10.1021/ja9708225 Supporting Info

1σ4,2σx-Diphosphetes (x = 2−6):  On the Persistence of the P−P Bond Muriel Sanchez, Régis Réau, Heinz Gornitzka, Françoise Dahan, Manfred Regitz, and Guy Bertrand pp 9720–9728 DOI: 10.1021/ja971821f Supporting Info

Electrochemical Potential and pH Dependences of [3Fe-4S] ↔ [M3Fe-4S] Cluster Transformations (M = Fe, Zn, Co, and Cd) in Ferredoxin III from Desulfovibrio africanus and Detection of a Cluster with M = Pb Julea N. Butt, Sarah E. J. Fawcett, Jacques Breton, Andrew J. Thomson, and Fraser A. Armstrong pp 9729–9737 DOI: 10.1021/ja971403a Supporting Info

Catalytic Decomposition of Ammonium Nitrate in Superheated Aqueous Solutions Joseph H. MacNeil, Hai-Tao Zhang, Polly Berseth, and William C. Trogler pp 9738–9744 DOI: 10.1021/ja971618k

Tris(tert-butoxy)siloxy Complexes as Single-Source Precursors to Homogeneous Zirconia- and Hafnia-Silica Materials. An Alternative to the Sol-Gel Method Karl W. Terry, Claus G. Lugmair, and T. Don Tilley pp 9745–9756 DOI: 10.1021/ja971405v Supporting Info

Paramagnetic States of Four Iron−Four Sulfur Clusters. 1. EPR Single-Crystal Study of 3+ and 1+ Clusters of an Asymmetrical Model Compound and General Model for the Interpretation of the g-Tensors of These Two Redox States Laurent Le Pape, Bernard Lamotte, Jean-Marie Mouesca, and Gérard Rius pp 9757–9770 DOI: 10.1021/ja963349o Supporting Info

Paramagnetic States of Four Iron−Four Sulfur Clusters. 2. Proton ENDOR Study of a 1+ State in an Asymmetrical Cluster Laurent Le Pape, Bernard Lamotte, Jean-Marie Mouesca, and Gérard Rius pp 9771–9781 DOI: 10.1021/ja963350n

Conformational Studies on 2‘,3‘-Unsaturated Pentopyranosyl Nucleosides by 1H NMR Spectroscopy. Impact of π → σ* Interactions on the Axial Preference of the Purine versus Pyrimidine Nucleobase Matjaž Polak, Bogdan Doboszewski, Piet Herdewijn, and Janez Plavec pp 9782–9792 DOI: 10.1021/ja963683k

Combination of CP/MAS NMR Spectroscopy and X-ray Crystallography:  Structure and Dynamics in Molecular Crystals of Hydrogen, Lithium, Sodium, Rubidium, and Cesium Penicillin V Michaela Wendeler, Jamila Fattah, J. Mark Twyman, Alison J. Edwards, Christopher M. Dobson, Stephen J. Heyes, and Keith Prout pp 9793–9803 DOI: 10.1021/ja9640657 Supporting Info

15N Chemical Shift Principal Values in Nitrogen Heterocycles Mark S. Solum, Karen L. Altmann, Mark Strohmeier, David A. Berges, Yulei Zhang, Julio C. Facelli, Ronald J. Pugmire, and David M. Grant pp 9804–9809 DOI: 10.1021/ja964135+

Dimerization of Carboxylic Acids and Salts:  An IR Study in Perfluoropolyether Media Vinh Doan, Ralf Köppe, and Paul H. Kasai pp 9810–9815 DOI: 10.1021/ja970304u

Identification of the Protonated Oxygenic Ligands of Ribonucleotide Reductase Intermediate X by Q-Band 1,2H CW and Pulsed ENDOR Jean-Paul Willems, Hong-In Lee, Doug Burdi, Peter E. Doan, JoAnne Stubbe, and Brian M. Hoffman pp 9816–9824 DOI: 10.1021/ja9709942

Magnetic Field Dependent Amide 15N Chemical Shifts in a Protein−DNA Complex Resulting from Magnetic Ordering in Solution Marcel Ottiger, Nico Tjandra, and Ad Bax pp 9825–9830 DOI: 10.1021/ja971639e Supporting Info

Effects of Neutral Bases on the Isomerization of Conventional Radical Cations CH3X•+ to Their Distonic Isomers •CH2X+H (X = F, OH, NH2):  Proton-Transport Catalysis and Other Mechanisms James W. Gauld and Leo Radom pp 9831–9839 DOI: 10.1021/ja970785h Supporting Info

Elongated Dihydrogen Complexes:  A Combined Electronic DFT + Nuclear Dynamics Study of the [Ru(H···H)(C5H5)(H2PCH2PH2)]+ Complex Ricard Gelabert, Miquel Moreno, José M. Lluch, and Agustí Lledós pp 9840–9847 DOI: 10.1021/ja970838v

Characterization of a Resting State Model of Peroxidases by ab Initio Methods:  Optimized Geometries, Electronic Structures, and Relative Energies of the Sextet, Quartet, and Doublet Spin States Gilda Loew and Michel Dupuis pp 9848–9851 DOI: 10.1021/ja9715814

The Nature of the Transition Structures of Triazolinedione Ene Reactions Jenny S. Chen, K. N. Houk, and Christopher S. Foote pp 9852–9855 DOI: 10.1021/ja970351m

DRFT-IR Studies of the Surface of γ-Alumina Xinsheng Liu and Ralph E. Truitt pp 9856–9860 DOI: 10.1021/ja971214s

Photoinduced Electron Transfer in Ethidium-Modified DNA Duplexes:  Dependence on Distance and Base Stacking Shana O. Kelley, R. Erik Holmlin, Eric D. A. Stemp, and Jacqueline K. Barton pp 9861–9870 DOI: 10.1021/ja9714651

Synthesis and Electrochemistry of Electronegative Spiroannelated Methanofullerenes:  Theoretical Underpinning of the Electronic Effect of Addends and a Reductive Cyclopropane Ring-Opening Reaction Brian Knight, Nazario Martín, Toshinobu Ohno, Enrique Ortí, Concepció Rovira, Jaume Veciana, José Vidal-Gancedo, Pedro Viruela, Rafael Viruela, and Fred Wudl pp 9871–9882 DOI: 10.1021/ja962299k Supporting Info

Incorporation of Helium into Endohedral Complexes of C60 and C70 Containing Noble-Gas Atoms:  A Tandem Mass Spectrometry Study D. E. Giblin, M. L. Gross, M. Saunders, H. Jimenez-Vazquez, and R. J. Cross pp 9883–9890 DOI: 10.1021/ja971104l

Importance of Quantum Effects for C−H Bond Activation Reactions Joaquín Espinosa-García, José C. Corchado, and Donald G. Truhlar pp 9891–9896 DOI: 10.1021/ja972209r Supporting Info

Synthesis of Carbon-Linked Glycopeptides through Catalytic Asymmetric Hydrogenation Sheryl D. Debenham, John S. Debenham, Mark J. Burk, and Eric J. Toone pp 9897–9898 DOI: 10.1021/ja971324z Supporting Info

15N Isotopic Labeling and Amide Hydrogen Exchange Rates of Oxidized Iso-1-cytochrome c Susan M. Baxter, Terry L. Boose, and Jacquelyn S. Fetrow pp 9899–9900 DOI: 10.1021/ja971337c Supporting Info

Measurement of 3JC2‘P Scalar Couplings in a 17 kDa Protein Complex with 13C,15N-Labeled DNA Distinguishes the BI and BII Phosphate Conformations of the DNA Thomas Szyperski, Akira Ono, César Fernández, Hideo Iwai, Shin-ichi Tate, Kurt Wüthrich, and Masatsune Kainosho pp 9901–9902 DOI: 10.1021/ja972290y

Exact Linear Analogs of Dendritic Polyether Macromolecules:  Design, Synthesis, and Unique Properties Craig J. Hawker, Eva E. Malmström, Curtis W. Frank, and J. Patrick Kampf pp 9903–9904 DOI: 10.1021/ja972027x Supporting Info

A Strategy for the Chemoselective Synthesis of O-Linked Glycopeptides with Native Sugar−Peptide Linkages Elena C. Rodriguez, Katharine A. Winans, David S. King, and Carolyn R. Bertozzi, pp 9905–9906 DOI: 10.1021/ja971633p Supporting Info

Experimental and Theoretical Kinetic Isotope Effects for Asymmetric Dihydroxylation. Evidence Supporting a Rate-Limiting “(3 + 2)” Cycloaddition Albert J. DelMonte, Jan Haller, K. N. Houk, K. Barry Sharpless, Daniel A. Singleton, Thomas Strassner, and Allen A. Thomas pp 9907–9908 DOI: 10.1021/ja971650e Supporting Info

Circularly Polarized Electroluminescence from a Polymer Light-Emitting Diode Emiel Peeters, Marwijn P. T. Christiaans, René A. J. Janssen, Herman F. M. Schoo, Harry P. J. M. Dekkers, and E. W. Meijer pp 9909–9910 DOI: 10.1021/ja971912c

Intramolecular Hydrogen Bonding Controls the Exchange Rates of Guests in a Cavitand Dmitry M. Rudkevich, Göran Hilmersson, and Julius Rebek, Jr. pp 9911–9912 DOI: 10.1021/ja971592x

Catalytic Asymmetric Synthesis of tert-Butanesulfinamide. Application to the Asymmetric Synthesis of Amines Guangcheng Liu, Derek A. Cogan, and Jonathan A. Ellman pp 9913–9914 DOI: 10.1021/ja972012z Supporting Info

New Family of Base- and Nucleophile-Sensitive Amino-Protecting Groups. A Michael-Acceptor-Based Deblocking Process. Practical Utilization of the 1,1-Dioxobenzo[b]thiophene-2-ylmethyloxycarbonyl (Bsmoc) Group Louis A. Carpino, Michael Philbin, Mohamed Ismail, George A. Truran, E. M. E. Mansour, Shin Iguchi, Dumitru Ionescu, Ayman El-Faham, Christoph Riemer, Ralf Warrass, and Manfred S. Weiss pp 9915–9916 DOI: 10.1021/ja9713690 Supporting Info

Thermolysis of 1,3,8-Nonatriyne:  Evidence for Intramolecular [2 + 4] Cycloaromatization to a Benzyne Intermediate Alexander Z. Bradley and Richard P. Johnson pp 9917–9918 DOI: 10.1021/ja972141f Supporting Info

Initial Stages of Water Adsorption on Au Surfaces Norihito Ikemiya and Andrew A. Gewirth pp 9919–9920 DOI: 10.1021/ja972322h

Reorganization Energy of Blue Copper:  Effects of Temperature and Driving Force on the Rates of Electron Transfer in Ruthenium- and Osmium-Modified Azurins Angel J. Di Bilio, Michael G. Hill, Nicklas Bonander, B. Göran Karlsson, Randy M. Villahermosa, Bo G. Malmström, Jay R. Winkler, and Harry B. Gray pp 9921–9922 DOI: 10.1021/ja971518e

Synthesis and Reactivity of a Stable η2-(Diphosphirenylium)W(CO)5 Complex Didier Bourissou, Yves Canac, Maria Isabel Collado, Antoine Baceiredo, and Guy Bertrand pp 9923–9924 DOI: 10.1021/ja971973a Supporting Info

New Boranophosphorylation Reagents, Dimethyl Boranophosphate Monopotassium Salt and Tetramethyl Boranopyrophosphate Tsuneo Imamoto, Eiji Nagato, Yoshiyuki Wada, Hideki Masuda, Kentaro Yamaguchi, and Tadafumi Uchimaru pp 9925–9926 DOI: 10.1021/ja972276l Supporting Info

A Simple Enantioselective Synthesis of the Biologically Active Tetracyclic Marine Sesterterpene Scalarenedial E. J. Corey, Guanglin Luo, and Linus Shouzhong Lin pp 9927–9928 DOI: 10.1021/ja972690l Supporting Info

Enantioselective Total Synthesis of the Potent Anti-HIV Agent Neotripterifordin. Reassignment of Stereochemistry at C(16) E. J. Corey and Kun Liu pp 9929–9930 DOI: 10.1021/ja972549c Supporting Info

Varying the Size of Multivalent Ligands:  The Dependence of Concanavalin A Binding on Neoglycopolymer Length Motomu Kanai, Kathleen H. Mortell, and Laura L. Kiessling pp 9931–9932 DOI: 10.1021/ja972089n Supporting Info

Phosphatidylinositol-Specific Phospholipase C. 3. Elucidation of the Catalytic Mechanism and Comparison with Ribonuclease A1 Robert J. Hondal, Zhong Zhao, Suzette R. Riddle, Alexander V. Kravchuk, Hua Liao, Karol S. Bruzik, and Ming-Daw Tsai pp 9933–9934 DOI: 10.1021/ja9714402

Crystallographic Structures of Human α-Thrombin Complexed to Peptide Boronic Acids Lacking a Positive Charge at P1. Evidence of Novel Interactions Emmanuel Skordalakes, Richard Tyrell, Said Elgendy, Christopher A. Goodwin, Donovan Green, Guy Dodson, Michael F. Scully, Jean-Marie H. Freyssinet, Vijay V. Kakkar, and John J. Deadman pp 9935–9936 DOI: 10.1021/ja9713338

Synthesis of [70]Azafulleroids:  Investigations of Azide Addition to C70 J. Am. Chem. Soc. 1997, 119, 943−946 Cheryl Bellavia-Lund and Fred Wudl p 9937 DOI: 10.1021/ja9754113

Energy Transfer in Rigidly-Linked Heterodinuclear Ru(II)/Fe(II) Polypyridyl Complexes:  Distance and Linkage Dependence J. Am. Chem. Soc. 1995, 117, 5881−5882 S. L. Larson, S. M. Hendrickson, S. Ferrere, D. L. Derr, and C. Michael Elliott p 9937 DOI: 10.1021/ja9754160

NMR as a Structural Tool for Macromolecules:  Current Status and Future Directions Edited by B. D. Nageswara Rao and Marvin D. Kemple (Indiana University−Purdue University at Indianapolis). Plenum:  New York, 1996. ix + 382 pp. $120.00. ISBN 0-306-45313-4. Michael F. Brown pp 9937–9938 DOI: 10.1021/ja965748p

Monte Carlo and Molecular Dynamics Simulations in Polymer Science Edited by Kurt Binder (Johannes-Gutenberg University). Oxford University Press:  New York, Oxford, 1995. xiv + 587 pp. $95.00. ISBN 0-19-509438-7. David L. Beveridge p 9938 DOI: 10.1021/ja965637q

Issue 42

The Concept of Solvent Compatibility and Its Impact on Protein Stability and Activity Enhancement in Nonaqueous Solvents Samuel Toba and Kenneth M. Merz, Jr. pp 9939–9948 DOI: 10.1021/ja970629a Supporting Info

Regio- and Stereoselectivity of Particulate Methane Monooxygenase from Methylococcus capsulatus (Bath) Sean J. Elliott, Mei Zhu, Luke Tso, H.-Hoa T. Nguyen, John H.-K. Yip, and Sunney I. Chan pp 9949–9955 DOI: 10.1021/ja971049g

Binding Features of Molecular Clips. Separation of the Effects of Hydrogen Bonding and π−π Interactions Joost N. H. Reek, Alex H. Priem, Hans Engelkamp, Alan E. Rowan, Johannes A. A. W. Elemans, and Roeland J. M. Nolte pp 9956–9964 DOI: 10.1021/ja970805f Supporting Info

Use of Kinetic Isotope Effects in Mechanism Studies. 5.1 Isotope Effects and Element Effects Associated with Hydron-Transfer Steps during Alkoxide-Promoted Dehydrohalogenations Heinz F. Koch, Gerrit Lodder, Judith G. Koch, David J. Bogdan, Geoffrey H. Brown, Carrie A. Carlson, Amy B. Dean, Ronald Hage, Patrick Han, Johan C. P. Hopman, Lisa A. James, Petra M. Knape, Eric C. Roos, Melissa L. Sardina, Rachael A. Sawyer, Barbara O. Scott, Charles A. Testa, III, and Steven D. Wickham pp 9965–9974 DOI: 10.1021/ja970189n

On the Mechanism of Addition of Lithium Pinacolone Enolate to Benzaldehyde:  Polar or Electron Transfer? Hiroshi Yamataka, Daizo Sasaki, Yoshiyuki Kuwatani, Masaaki Mishima, and Yuho Tsuno pp 9975–9979 DOI: 10.1021/ja971262c

A Steady-State and Time-Resolved Fluorescence Study of Quenching Reactions of Anthracene and 1,2-Benzanthracene by Carbon Tetrabromide and Bromoethane in Supercritical Carbon Dioxide Jianwei Zhang, Daniel P. Roek, John E. Chateauneuf, and Joan F. Brennecke pp 9980–9991 DOI: 10.1021/ja964244o

A Biradical Mechanism in the Diels−Alder Reactions of 5-Methylene-2(5H)-furanones:  Experimental Evidence and Theoretical Rationalization Vicenç Branchadell, Josep Font, Albertina G. Moglioni, Cristina Ochoa de Echagüen, Antonio Oliva, Rosa M. Ortuño, Jaume Veciana, and José Vidal-Gancedo pp 9992–10003 DOI: 10.1021/ja9717525 Supporting Info

Efficient Syntheses of Pyrofolic Acid and Pteroyl Azide, Reagents for the Production of Carboxyl-Differentiated Derivatives of Folic Acid Jin Luo, Michael D. Smith, Douglas A. Lantrip, Susan Wang, and P. L. Fuchs pp 10004–10013 DOI: 10.1021/ja971568j Supporting Info

Intramolecular Cyclization of 2,7- or 2,8-Bis-unsaturated Esters Mediated by (η2-Propene)Ti(O-i-Pr)2. Facile Construction of Mono- and Bicyclic Skeletons with Stereoselective Introduction of a Side Chain. A Synthesis of d-Sabinene Hirokazu Urabe, Ken Suzuki, and Fumie Sato pp 10014–10027 DOI: 10.1021/ja9716160 Supporting Info

Palladium(II)-Catalyzed Alternating Copolymerization of Allene with Carbon Monoxide and the Synthesis of Terpolymer with Alt-Allene-Carbon Monoxide and Alt-Ethene-Carbon Monoxide Blocks. Synthetic and Mechanistic Aspects Smita Kacker and Ayusman Sen pp 10028–10033 DOI: 10.1021/ja9716620

A General and Stereocontrolled Strategy for the Iterative Assembly of Enantiopure Polypropionate Subunits:  Synthesis of the C19−C28 Segment of Rifamycin S from a Single Chiron Stephen Hanessian, Wengui Wang, Yonghua Gai, and Eric Olivier pp 10034–10041 DOI: 10.1021/ja970251g Supporting Info

Probing the Origins of Asymmetric Induction by 3-Aminopyrrolidine Lithium Amides Complexes:  A 6Li/1H/13C NMR Study Aline Corruble, Jean-Yves Valnot, Jacques Maddaluno, Yann Prigent, Daniel Davoust, and Pierre Duhamel pp 10042–10048 DOI: 10.1021/ja9710464 Supporting Info

Aldehydes vs Aldimines. Unprecedented Aldimine-Selective Nucleophilic Additions in the Coexistence of Aldehydes Using a Lanthanide Salt as a Lewis Acid Catalyst Shū Kobayashi and Satoshi Nagayama pp 10049–10053 DOI: 10.1021/ja971153y Supporting Info

An Efficient Synthesis of Functionalized Helicenes Thomas J. Katz, Longbin Liu, Nikolaos D. Willmore, Joseph M. Fox, Arnold L. Rheingold, Shuhao Shi, Colin Nuckolls, and Barry H. Rickman pp 10054–10063 DOI: 10.1021/ja9721327 Supporting Info

Coupling of Glycal Derived Thioethyl Glycosyl Donors with Glycal Acceptors. An Advance in the Scope of the Glycal Assembly Peter H. Seeberger, Matthias Eckhardt, Clare E. Gutteridge, and Samuel J. Danishefsky pp 10064–10072 DOI: 10.1021/ja971640d Supporting Info

Total Syntheses of Epothilones A and B Dongfang Meng, Peter Bertinato, Aaron Balog, Dai-Shi Su, Ted Kamenecka, Erik J. Sorensen, and Samuel J. Danishefsky pp 10073–10092 DOI: 10.1021/ja971946k Supporting Info

High-Yield Synthesis of the Enterobactin Trilactone and Evaluation of Derivative Siderophore Analogs1 Michel Meyer, Jason R. Telford, Seth M. Cohen, David J. White, Jide Xu, and Kenneth N. Raymond pp 10093–10103 DOI: 10.1021/ja970718n Supporting Info

Stepwise Reduction of Dinitrogen Occurring on a Divanadium Model Compound:  A Synthetic, Structural, Magnetic, Electrochemical, and Theoretical Investigation on the [VNNV]n+ [n = 4−6] Based Complexes Richard Ferguson, Euro Solari, Carlo Floriani, Domenico Osella, Mauro Ravera, Nazzareno Re, Angiola Chiesi-Villa, and Corrado Rizzoli pp 10104–10115 DOI: 10.1021/ja971229q Supporting Info

Preparation of Palladium Colloids in Block Copolymer Micelles and Their Use for the Catalysis of the Heck Reaction S. Klingelhöfer, W. Heitz, A. Greiner, S. Oestreich, S. Förster, and M. Antonietti pp 10116–10120 DOI: 10.1021/ja9714604

CO Binding to the FeMo Cofactor of CO-Inhibited Nitrogenase:  13CO and 1H Q-Band ENDOR Investigation Hong-In Lee, Linda M. Cameron, Brian J. Hales, and Brian M. Hoffman pp 10121–10126 DOI: 10.1021/ja9715096

Rapid Reversible Oxidative Addition of Group 14−Halide Bonds to Platinum(II):  Rates, Equilibria, and Bond Energies Christopher J. Levy and Richard J. Puddephatt pp 10127–10136 DOI: 10.1021/ja971532r Supporting Info

Ligand-Promoted Alumina Dissolution in the Preparation of MoOX/γ-Al2O3 Catalysts:  Evidence for the Formation and Deposition of an Anderson-type Alumino Heteropolymolybdate X. Carrier, J. F. Lambert, and M. Che pp 10137–10146 DOI: 10.1021/ja971981r Supporting Info

Transition States of Epoxidations:  Diradical Character, Spiro Geometries, Transition State Flexibility, and the Origins of Stereoselectivity K. N. Houk, Jian Liu, Nicholas C. DeMello, and Kevin R. Condroski pp 10147–10152 DOI: 10.1021/ja963847x

Quantum Exchange Coupling:  A Hypersensitive Indicator of Weak Interactions Roger Kuhlman, Eric Clot, Claude Leforestier, William E. Streib, Odile Eisenstein, and Kenneth G. Caulton pp 10153–10169 DOI: 10.1021/ja970603j Supporting Info

In Situ NMR Observations of the Photolysis of Cymantrene and Methylcymantrene in Supercritical Fluids:  A New Technique Using High-Pressure NMR John C. Linehan, Scott L. Wallen, Clement R. Yonker, Thomas E. Bitterwolf, and J. Timothy Bays pp 10170–10177 DOI: 10.1021/ja9711876

C−F Bond Activation by the 14-Electron M(X)(PH3)2 (M = Rh, Ir; X = CH3, H, Cl) Complex. A Density Functional Study Ming-Der Su and San-Yan Chu pp 10178–10185 DOI: 10.1021/ja971269u

Decomposition of Nitric Oxide over Barium Oxide Supported on Magnesium Oxide. 1. Catalytic Results and in Situ Raman Spectroscopic Evidence for a Barium−Nitro Intermediate Shuibo Xie, Gerhard Mestl, Michael P. Rosynek, and Jack H. Lunsford pp 10186–10191 DOI: 10.1021/ja970809k

Fundamental Studies on Brooker's Merocyanine John O. Morley, Richard M. Morley, Robert Docherty, and Michael H. Charlton pp 10192–10202 DOI: 10.1021/ja971477m

The Mandelic Acid Keto−Enol System in Aqueous Solution. Generation of the Enol by Hydration of Phenylhydroxyketene and Phenylcarboxycarbene Y. Chiang, A. J. Kresge, V. V. Popik, and N. P. Schepp pp 10203–10212 DOI: 10.1021/ja971774r Supporting Info

Charge-Localized p-Phenylenedihydrazine Radical Cations:  ESR and Optical Studies of Intramolecular Electron Transfer Rates Stephen F. Nelsen, Rustem F. Ismagilov, and Douglas R. Powell pp 10213–10222 DOI: 10.1021/ja9720321 Supporting Info

Compounds with Linear, Bonded Trichromium Chains F. Albert Cotton, Lee M. Daniels, Carlos A. Murillo, and Isabel Pascual pp 10223–10224 DOI: 10.1021/ja971998+ Supporting Info

Totally Stereocontrolled Intermolecular Pauson−Khand Reactions of N-(2-Alkynoyl) Sultams Sílvia Fonquerna, Albert Moyano, Miquel A. Pericàs, and Antoni Riera pp 10225–10226 DOI: 10.1021/ja970901g Supporting Info

Structure of a Monolayer of Hexadecyltrimethylammonium p-Tosylate at the Air−Water Interface G. R. Bell, C. D. Bain, Z. X. Li, R. K. Thomas, D. C. Duffy, and J. Penfold pp 10227–10228 DOI: 10.1021/ja972842c

Direct Observation of Benzdiyne:  Photolysis of 1,4-Bis(trifluoromethyl)-2,3,5,6-benzenetetracarboxylic Dianhydride in an Argon Matrix Masaya Moriyama, Tsuguyori Ohana, and Akira Yabe pp 10229–10230 DOI: 10.1021/ja971936j

Thallium(I) Selectively Abstracts Fluoride from a Tertiary Carbon−Fluorine Bond under Conditions Where Silver(I) Selectively Abstracts Iodide from Rhodium Russell P. Hughes, Trang Le Husebo, and Susan M. MaddockArnold L. Rheingold and Ilia A. Guzei pp 10231–10232 DOI: 10.1021/ja972398d Supporting Info

Evaluation of the Molecular Configuration Integral in All Degrees of Freedom for the Direct Calculation of Binding Free Energies:  Application to the Enantioselective Binding of Amino Acid Derivatives to Synthetic Host Molecules István Kolossváry pp 10233–10234 DOI: 10.1021/ja971573n

C−H Activation at Pt(II) To Form Stable Pt(IV) Alkyl Hydrides Douglas D. Wick and Karen I. Goldberg pp 10235–10236 DOI: 10.1021/ja971952g Supporting Info

Solvent Effects on Diastereoselective Intramolecular [2 + 2] Photocycloadditions:  Reversal of Selectivity through Intramolecular Hydrogen Bonding Michael T. Crimmins and Allison L. Choy pp 10237–10238 DOI: 10.1021/ja9717119 Supporting Info

[Cu·(H2O)n]2+ Clusters:  The First Evidence of Aqueous Cu(II) in the Gas Phase A. J. Stace, N. R. Walker, and S. Firth pp 10239–10240 DOI: 10.1021/ja9722436

Facile Ring Opening of Tertiary Aminocyclopropanes by Photooxidation Jinhwa Lee, Jong Sun U, Silas C. Blackstock, and Jin Kun Cha pp 10241–10242 DOI: 10.1021/ja972115h Supporting Info

An Antenna Polymer for Visible Energy Transfer Laurence M. Dupray, Martin Devenney, Durwin R. Striplin, and Thomas J. Meyer pp 10243–10244 DOI: 10.1021/ja970660c Supporting Info

Controlled Spacing of Metal Atoms via Ligand Hydrogen Bonds Caroline L. Schauer, Eric Matwey, Frank W. Fowler, and Joseph W. Lauher pp 10245–10246 DOI: 10.1021/ja9719539 Supporting Info

Relative and Absolute Stereochemistries and Total Synthesis of (+)-Macrosphelides A and B, Potent, Orally Bioavailable Inhibitors of Cell−Cell Adhesion Toshiaki Sunazuka, Tomoyasu Hirose, Yoshihiro Harigaya, Satoshi Takamatsu, Masahiko Hayashi, Kanki Komiyama, and Satoshi ŌmuraPaul A. Sprengeler and Amos B. Smith, III pp 10247–10248 DOI: 10.1021/ja971657w Supporting Info

A 1011-Fold Range of Solvent Dynamics Control of Heterogeneous Electron Transfers of Cobalt(III/II)tris(bipyridine) Mary Elizabeth Williams, Joseph C. Crooker, Radha Pyati, Leslie J. Lyons, and Royce W. Murray pp 10249–10250 DOI: 10.1021/ja972403d Supporting Info

Reactive Immunization Strategy Generates Antibodies with High Catalytic Proficiencies Chih-Hung L. Lo, Paul Wentworth, Jr., Kyung Woon Jung, Juyoung Yoon, Jon A. Ashley, and Kim D. Janda pp 10251–10252 DOI: 10.1021/ja971442m Supporting Info

Structural Basis for Peptidomimicry by the Effector Element of Rapamycin Yoshi Odagaki and Jon Clardy pp 10253–10254 DOI: 10.1021/ja972098w Supporting Info

Issue 43

Experimental Determination of the Activation Parameters and Stereoselectivities of the Intramolecular Diels−Alder Reactions of 1,3,8-Nonatriene, 1,3,9-Decatriene, and 1,3,10-Undecatriene and Transition State Modeling with the Monte Carlo-Jumping Between Wells/Molecular Dynamics Method Matthias K. Diedrich, Frank-Gerrit Klärner, Brett R. Beno, K. N. Houk, Hanoch Senderowitz, and W. Clark Still pp 10255–10259 DOI: 10.1021/ja9643331 Supporting Info

Probing the Abilities of Synthetically Useful Serine Proteases To Discriminate Remote Stereocenters. Chiral Naphthyl Aldehyde Inhibitors Taekyu Lee and J. Bryan Jones pp 10260–10268 DOI: 10.1021/ja9708777 Supporting Info

Eliminations in the Reactions Catalyzed by UDP-N-Acetylglucosamine 2-Epimerase Paul M. Morgan, Rafael F. Sala, and Martin E. Tanner pp 10269–10277 DOI: 10.1021/ja971718q Supporting Info

Conformational Characterization of Terminally Blocked l-(αMe)Val Homopeptides Using Vibrational and Electronic Circular Dichroism. 310-Helical Stabilization by Peptide−Peptide Interaction Gorm Yoder, Alessandra Polese, R. A. G. D. Silva, Fernando Formaggio, Marco Crisma, Quirinus B. Broxterman, Johan Kamphuis, Claudio Toniolo, and Timothy A. Keiderling pp 10278–10285 DOI: 10.1021/ja971392l

Tight Binding of a Dimeric Derivative of Vancomycin with Dimeric l-Lys-d-Ala-d-Ala Jianghong Rao and George M. Whitesides pp 10286–10290 DOI: 10.1021/ja971225l Supporting Info

Theoretical Study of the Zwittazido Cleavage of 4-Azido-2-pyrrolinones:  The Role of Solvent and Substituents Dimas Suárez and Tomás L. Sordo pp 10291–10301 DOI: 10.1021/ja970517j

Applications of Zr-Catalyzed Carbomagnesation and Mo-Catalyzed Macrocyclic Ring Closing Metathesis in Asymmetric Synthesis. Enantioselective Total Synthesis of Sch 38516 (Fluvirucin B1) Zhongmin Xu, Charles W. Johannes, Ahmad F. Houri, Daniel S. La, Derek A. Cogan, Gloria E. Hofilena, and Amir H. Hoveyda pp 10302–10316 DOI: 10.1021/ja972191k Supporting Info

Stoichiometrically Sensitized Decarboxylation Occurring in the Two-Component Molecular Crystals of Aza Aromatic Compounds and Aralkyl Carboxylic Acids Hideko Koshima, Kuiling Ding, Yosuke Chisaka, Teruo Matsuura, Ikuko Miyahara, and Ken Hirotsu pp 10317–10324 DOI: 10.1021/ja971156a Supporting Info

Calibration of Intramolecular Radical Cation Probes Based on Arylalkene Cycloadditions1 Norman P. Schepp, Deepak Shukla, Haripada Sarker, Nathan L. Bauld, and Linda J. Johnston pp 10325–10334 DOI: 10.1021/ja971307+

High-Spin Polyarylmethyl Polyradical:  Fragment of a Macrocyclic 2-Strand Based upon Calix[4]arene Rings Andrzej Rajca, Kan Lu, and Suchada Rajca pp 10335–10345 DOI: 10.1021/ja971493j

A New Entry into Molybdenum/Tungsten Sulfur Chemistry:  Synthesis and Reactions of Mononuclear Sulfido Complexes of Pentamethylcyclopentadienyl−Molybdenum(VI) and −Tungsten(VI) Hiroyuki Kawaguchi, Kazuhiro Yamada, Jian-Ping Lang, and Kazuyuki Tatsumi pp 10346–10358 DOI: 10.1021/ja971725e Supporting Info

Facile Formation of Rare Terminal Chalcogenido Germanium Complexes with Alkylamidinates as Supporting Ligands Stephen R. Foley, Corinne Bensimon, and Darrin S. Richeson pp 10359–10363 DOI: 10.1021/ja9719891 Supporting Info

First-Generation Chiral Metallodendrimers:  Stereoselective Synthesis of Rigid D3-Symmetric Tetranuclear Ruthenium Complexes Swamy Bodige, Andrew S. Torres, David J. Maloney, David Tate, Gary R. Kinsel, Angela K. Walker, and Frederick M. MacDonnell pp 10364–10369 DOI: 10.1021/ja9720467 Supporting Info

Synthesis and X-ray Structural Characterization of Two Unbridged Diplatinum(III) Compounds:  cis- and trans-Bis[bis(1-imino-1-methoxyethane)trichloroplatinum(III)]. Transient Species in the Oxidation of Platinum(II) to Platinum(IV) Giuliano Bandoli, Paola A. Caputo, Francesco P. Intini, Maria F. Sivo, and Giovanni Natile pp 10370–10376 DOI: 10.1021/ja964170g Supporting Info

Symmetrical and Unsymmetrical Compounds Having a Linear Co36+ Chain Ligated by a Spiral Set of Dipyridyl Anions F. Albert Cotton, Lee M. Daniels, Glenn T. Jordan, IV, and Carlos A. Murillo pp 10377–10381 DOI: 10.1021/ja971997h Supporting Info

Transition Metal Nanocluster Formation Kinetic and Mechanistic Studies. A New Mechanism When Hydrogen Is the Reductant:  Slow, Continuous Nucleation and Fast Autocatalytic Surface Growth Murielle A. Watzky and Richard G. Finke pp 10382–10400 DOI: 10.1021/ja9705102 Supporting Info

Association of Dicyanodiphenylacetylenes with Silver(I) Salts in Solution and Solid State:  Electrospray Ionization Mass Spectrometry Samples Aggregates at Subsaturated Concentrations Keith A. Hirsch, Scott R. Wilson, and Jeffrey S. Moore pp 10401–10412 DOI: 10.1021/ja971135g Supporting Info

Expanded Close-Packed Fullerides:  The Reactivity of Na2C60 with Ammonia Amelia J. Fowkes, Judith M. Fox, Paul F. Henry, Stephen J. Heyes, and Matthew J. Rosseinsky pp 10413–10423 DOI: 10.1021/ja972085i Supporting Info

Direct Observation of Nitrosylated Heme in Myoglobin and Hemoglobin by Electrospray Ionization Mass Spectrometry Rita K. Upmacis, David P. Hajjar, Brian T. Chait, and Urooj A. Mirza pp 10424–10429 DOI: 10.1021/ja964249l

The Carbon Lone Pair as Electron Donor. Ionic Hydrogen Bonds in Isocyanides Michael Meot-Ner (Mautner), L. Wayne Sieck, Kristin K. Koretke, and Carol A. Deakyne pp 10430–10438 DOI: 10.1021/ja960669z Supporting Info

Monomer and Dimer Complexes of Coronene with Atomic Ions Boguslav P. Pozniak and Robert C. Dunbar pp 10439–10445 DOI: 10.1021/ja9716259

Van der Waals Complexes between Unsaturated Hydrocarbons and Boron Trifluoride:  An Infrared and ab Initio Study of Ethene·BF3 and Propene·BF3 W. A. Herrebout and B. J. van der Veken pp 10446–10454 DOI: 10.1021/ja971887a

Unimolecular Electrical Rectification in Hexadecylquinolinium Tricyanoquinodimethanide Robert M. Metzger, Bo Chen, Ulf Höpfner, M. V. Lakshmikantham, Dominique Vuillaume, Tsuyoshi Kawai, Xiangli Wu, Hiroaki Tachibana, Terry V. Hughes, Hiromi Sakurai, Jeffrey W. Baldwin, Christina Hosch, Michael P. Cava, Ludwig Brehmer, and Geoffrey J. Ashwell pp 10455–10466 DOI: 10.1021/ja971811e

Development of Amperometric and Microgravimetric Immunosensors and Reversible Immunosensors Using Antigen and Photoisomerizable Antigen Monolayer Electrodes Ron Blonder, Shlomo Levi, Guoliang Tao, Iddo Ben-Dov, and Itamar Willner pp 10467–10478 DOI: 10.1021/ja971980z Supporting Info

Magnitudes and Orientations of the Principal Elements of the 1H Chemical Shift, 1H−15N Dipolar Coupling, and 15N Chemical Shift Interaction Tensors in 15Nε1-Tryptophan and 15Nπ-Histidine Side Chains Determined by Three-Dimensional Solid-State NMR Spectroscopy of Polycrystalline Samples A. Ramamoorthy, C. H. Wu, and S. J. Opella pp 10479–10486 DOI: 10.1021/ja9632670

Determination of Peptide Amide Configuration in a Model Amyloid Fibril by Solid-State NMR P. R. Costa, D. A. Kocisko, B. Q. Sun, P. T. Lansbury, Jr., and R. G. Griffin pp 10487–10493 DOI: 10.1021/ja971494b

Magic Angle Spinning Nuclear Magnetic Resonance in Solid-Phase Peptide Synthesis Christophe Dhalluin, Christophe Boutillon, André Tartar, and Guy Lippens pp 10494–10500 DOI: 10.1021/ja971795l

Solvation of the Li+−Br-−Li+ Triple Ion in the Gas Phase Russell L Jarek and Seung Koo Shin pp 10501–10508 DOI: 10.1021/ja971841h

Construction of 3D-QSAR Models Using the 4D-QSAR Analysis Formalism A. J. Hopfinger, Shen Wang, John S. Tokarski, Baiqiang Jin, Magaly Albuquerque, Prakash J. Madhav, and Chaya Duraiswami pp 10509–10524 DOI: 10.1021/ja9718937

Effect of Oxygen on Linked Ru(bpy)32+−Viologen Species and Methylviologen:  A Reinterpretation of the Electrogenerated Chemiluminescence Catherine D. Clark, Jeff D. Debad, Edward H. Yonemoto, Thomas E. Mallouk, and Allen J. Bard pp 10525–10531 DOI: 10.1021/ja9718432

Substrate and Temperature Dependence of DNA Photolyase Repair Activity Examined with Ultrafast Spectroscopy Thomas Langenbacher, Xiaodong Zhao, Gero Bieser, Paul F. Heelis, Aziz Sancar, and Maria Elisabeth Michel-Beyerle pp 10532–10536 DOI: 10.1021/ja9721024

Ligand Control and Asymmetric Michael Reactions of Enantioenriched Configurationally Stable N-Boc Anilino Benzylic and Allylic Organolithium Species Yong Sun Park, Gerald A. Weisenburger, and Peter Beak pp 10537–10538 DOI: 10.1021/ja972333a Supporting Info

A General Copper-Catalyzed Synthesis of Diaryl Ethers Jean-François Marcoux, Sven Doye, and Stephen L. Buchwald pp 10539–10540 DOI: 10.1021/ja971901j Supporting Info

Synthesis, Structure and Bonding of SrCa2In2Ge:  A New Zintl Phase with an Unusual Inorganic π-System Zhihong Xu and Arnold M. Guloy pp 10541–10542 DOI: 10.1021/ja9721125 Supporting Info

Calculational Evidence for Lack of Intermediates in the Thermal Unimolecular Vinylcyclopropane to Cyclopentene 1,3-Sigmatropic Shift Ernest R. Davidson and Joseph J. Gajewski pp 10543–10544 DOI: 10.1021/ja9711932 Supporting Info

The Vinylcyclopropane−Cyclopentene Rearrangement:  A Prototype Thermal Rearrangement Involving Competing Diradical Concerted and Stepwise Mechanisms K. N. Houk, Maja Nendel, Olaf Wiest, and Joey W. Storer pp 10545–10546 DOI: 10.1021/ja971315q Supporting Info

Enantiomeric Resolution of Cycloenantiomeric Rotaxane, Topologically Chiral Catenane, and Pretzel-Shaped Molecules:  Observation of Pronounced Circular Dichroism Chiyo Yamamoto, Yoshio Okamoto, Thomas Schmidt, Ralf Jäger, and Fritz Vögtle pp 10547–10548 DOI: 10.1021/ja971764q Supporting Info

Catalytic Pauson−Khand Reaction in Super Critical Fluids Nakcheol Jeong, Sung Hee Hwang, Youn Woo Lee, and Jong Sung Lim pp 10549–10550 DOI: 10.1021/ja972099o Supporting Info

Positive Cooperativity of Product Mimics in the Asymmetric Autoinduction of Diels−Alder Reactions Catalyzed by a VAPOL−Aluminum Catalyst Douglas P. Heller, Daniel R. Goldberg, and William D. Wulff pp 10551–10552 DOI: 10.1021/ja971246f Supporting Info

Biosynthesis of 2-Nor-6-deoxyerythronolide B by Rationally Designed Domain Substitution Lu Liu, Arinthip Thamchaipenet, Hong Fu, Mary Betlach, and Gary Ashley pp 10553–10554 DOI: 10.1021/ja972451y

Transfer of Ganglioside GM3 Oligosaccharide from a Water Soluble Polymer to Ceramide by Ceramide Glycanase. A Novel Approach for the Chemical-Enzymatic Synthesis of Glycosphingolipids Shin-Ichiro Nishimura and Kuriko Yamada pp 10555–10556 DOI: 10.1021/ja971786c Supporting Info

Extragenic Compensation in Complex Formation:  Restoration of Binding of a Charge Reversal Mutant of Cytochrome c Peroxidase (D217K) by a Compensatory Charge Reversal in Cytochrome c (K77D) Richard Hake, Alan Corin, and George McLendon pp 10557–10558 DOI: 10.1021/ja970260p

A pH-Modulated, Self-Replicating Peptide Shao Yao, Indraneel Ghosh, Reena Zutshi, and Jean Chmielewski pp 10559–10560 DOI: 10.1021/ja9710619 Supporting Info

Coordination of Ethene and Propene to a Cationic d0 Vanadium Center Peter T. Witte, Auke Meetsma, and Bart HessenPeter H. M. Budzelaar pp 10561–10562 DOI: 10.1021/ja972219s Supporting Info

Rates of Interfacial Electron Transfer through π-Conjugated Spacers Sandra B. Sachs, Stephen P. Dudek, Richard P. Hsung, Lawrence R. Sita, John F. Smalley, Marshall D. Newton, Stephen W. Feldberg, and Christopher E. D. Chidsey pp 10563–10564 DOI: 10.1021/ja972244y

Single-Crystal Matrix Isolation of Biopolymers Jean Chmielewski, Jerry J. Lewis, Scott Lovell, Reena Zutshi, Phil Savickas, Christine A. Mitchell, J. Anand Subramony, and Bart Kahr pp 10565–10566 DOI: 10.1021/ja971370z Supporting Info

IGOR Pro, Version 3 (Mac) Wavemetrics, Inc.:  P.O. Box 2088, Lake Oswego, Oregon, 97035. Phone:  (503) 620-3001. Fax:  (503) 620-6754. E-mail:  sales@wavemetrics.com, http://www.wavemetrics.com. List Price $495.00; students and faculty $346.50; additional quantity, multi-user, and coursework discounts available. Nancy S. Goroff p 10567 DOI: 10.1021/ja965932a

Acylation of β-Lactams by Class A β-Lactamase:  An ab Initio Theoretical Study on the Effects of the Oxy-Anion Hole J. Am. Chem. Soc. 1997, 119, 6423−6431 Brian D. Wladkowski, Sarah A. Chenoweth, Julie N. Sanders, Morris Krauss, and Walter J. Stevens p 10567 DOI: 10.1021/ja975417s

Grapher for Windows Version 1.30 Golden Software, Inc.:  809 14th Street, Golden, CO 80401-1866. (800) 972-1021; (303) 279-1021. List price $199. Jerzy Chlistunoff pp 10567–10568 DOI: 10.1021/ja9759095

Studies in Surface Science and Catalysis, #103:  Semiconductor NanoclustersPhysical, Chemical, and Catalytic Aspects Edited by P. V. Kamat (University of Notre Dame) and D. Meisel (Argonne National Laboratory). Elsevier:  Amsterdam, 1997. x + 474 pp. $272.00. ISBN 0-444-82064-7. David F. Kelley p 10568 DOI: 10.1021/ja965811a

Issue 44

Model Systems for Flavoenzyme Activity. Specific Hydrogen Bond Recognition of Flavin in a Silicate Sol-Gel Michael D. Greaves and Vincent M. Rotello pp 10569–10572 DOI: 10.1021/ja971175k

Higher Order Structure of DNA Controlled by the Redox State of Fe2+/Fe3+ Yuichi Yamasaki and Kenichi Yoshikawa pp 10573–10578 DOI: 10.1021/ja971849r

IBTM-Containing Gramicidin S Analogues:  Evidence for IBTM as a Suitable Type II‘ β-Turn Mimetic1,2 David Andreu, Sergi Ruiz, Cristina Carreño, Jordi Alsina, Fernando Albericio, María Ángeles Jiménez, Natalia de la Figuera, Rosario Herranz, María Teresa García-López, and Rosario González-Muñiz pp 10579–10586 DOI: 10.1021/ja9705755 Supporting Info

Novel Folding Patterns in a Family of Oligoanthranilamides:  Non-Peptide Oligomers That Form Extended Helical Secondary Structures Yoshitomo Hamuro, Steven J. Geib, and Andrew D. Hamilton pp 10587–10593 DOI: 10.1021/ja963449u Supporting Info

A Putative Monooxygenase Mimic Which Functions via Well-Disguised Free Radical Chemistry1 Philip A. MacFaul, K. U. Ingold, D. D. M. Wayner, and Lawrence Que, Jr. pp 10594–10598 DOI: 10.1021/ja963627j Supporting Info

Conformations of Azacyclodeca-3,8-diynes and 1,6-Diazacyclodeca-3,8-diynes and the Generalized Anomeric Effect:  A Test for Current Conformational Models for Azaheterocycles Joachim Ritter, Rolf Gleiter, Hermann Irngartinger, and Thomas Oeser pp 10599–10607 DOI: 10.1021/ja9628258 Supporting Info

Spatially-Resolving Nanoscopic Structure and Excitonic-Charge-Transfer Quenching in Molecular Semiconductor Heterojunctions David M. Adams, Josef Kerimo, Eric J. C. Olson, Arie Zaban, Brian A. Gregg, and Paul F. Barbara pp 10608–10619 DOI: 10.1021/ja9717774 Supporting Info

Electron Transition Current Density in Molecules. 3. Ab Initio Calculations for Vibrational Transitions in Ethylene and Formaldehyde Teresa B. Freedman, Mei-Ling Shih, Eunah Lee, and Laurence A. Nafie pp 10620–10626 DOI: 10.1021/ja9701568

Control of Calcite Crystal Morphology by a Peptide Designed To Bind to a Specific Surface Daniel B. DeOliveira and Richard A. Laursen pp 10627–10631 DOI: 10.1021/ja972270w

A Study in Crystal Engineering:  Structure, Crystal Growth, and Physical Properties of a Polar Perhydrotriphenylene Inclusion Compound Olaf König, Hans-Beat Bürgi, Thomas Armbruster, Jürg Hulliger, and Thomas Weber pp 10632–10640 DOI: 10.1021/ja971945s Supporting Info

Hydrogen-Bonded Complexes of Aromatic Crown Ethers with (9-Anthracenyl)methylammonium Derivatives. Supramolecular Photochemistry and Photophysics. pH-Controllable Supramolecular Switching Peter R. Ashton, Roberto Ballardini, Vincenzo Balzani, Marcos Gómez-López, Simon E. Lawrence, M. Victoria Martínez-Díaz, Marco Montalti, Arianna Piersanti, Luca Prodi, J. Fraser Stoddart, and David J. Williams pp 10641–10651 DOI: 10.1021/ja9715760 Supporting Info

Dynamics of Ionization Reactions of β-Substituted Radicals. Substituent and Solvent Effects Frances L. Cozens, Melanie O'Neill, Roumiana Bogdanova, and Norman Schepp pp 10652–10659 DOI: 10.1021/ja971996p Supporting Info

Photochemistry of p-Benzoquinone Diazide Carboxylic Acids:  Formation of 2,4-Didehydrophenols Wolfram Sander, Götz Bucher, Holger Wandel, Elfi Kraka, Dieter Cremer, and William S. Sheldrick pp 10660–10672 DOI: 10.1021/ja971731a Supporting Info

Detection of Phenyl-Substituted Radical Cations Derived from Cyclopentyl- and Urazole-Type Azoalkanes by Pulse Radiolysis:  Influence of Heteroatom Substitution on the Radical Cation Reactivities Waldemar Adam, Thomas Kammel, Marion Toubartz, and Steen Steenken pp 10673–10676 DOI: 10.1021/ja970647s

Photocyclization Mechanism of Halopyridinium Salt Tethered to Arene:  Flash Photolysis Observation of a Pyridinium σ, Cyclohexadienyl Radicals, and a Dihalide Radical Anion in Aqueous Solution Yong-Tae Park, Nam Woong Song, Chul-Gyun Hwang, Kwang-Wook Kim, and Dongho Kim pp 10677–10683 DOI: 10.1021/ja970425u Supporting Info

Rotational Isomers in Stacked Macrocycles:  Synthesis and Spectroscopic Properties of Peripherally Substituted (μ-Oxo)bis(phthalocyaninatosilicon) Compounds Jörg Kleinwächter and Michael Hanack pp 10684–10695 DOI: 10.1021/ja962663f Supporting Info

Selectivities in Hydrocarbon Activation:  Kinetic and Thermodynamic Investigations of Reversible 1,2-RH-Elimination from (silox)2(tBu3SiNH)TiR (silox = tBu3SiO) Jordan L. Bennett and Peter T. Wolczanski pp 10696–10719 DOI: 10.1021/ja9707419 Supporting Info

Mimicking Electron Transfer Reactions in Photosystem II:  Synthesis and Photochemical Characterization of a Ruthenium(II) Tris(bipyridyl) Complex with a Covalently Linked Tyrosine Ann Magnuson, Helena Berglund, Peter Korall, Leif Hammarström, Björn Åkermark, Stenbjörn Styring, and Licheng Sun pp 10720–10725 DOI: 10.1021/ja972161h

Kinetics and Thermodynamics of Hydrogen Atom Transfer to Superoxometal Complexes Andreja Bakac pp 10726–10731 DOI: 10.1021/ja971987g Supporting Info

An Analysis of Porphyrin Molecular FlexibilityUse of Porphyrin Diacids Beisong Cheng, Orde Q. Munro, Helder M. Marques, and W. Robert Scheidt pp 10732–10742 DOI: 10.1021/ja9716214 Supporting Info

Oxidation-State-Dependent Reactivity and Catalytic Properties of a Rh(I) Complex Formed from a Redox-Switchable Hemilabile Ligand Caroline S. Slone, Chad A. Mirkin, Glenn P. A. Yap, Ilia A. Guzei, and Arnold L. Rheingold pp 10743–10753 DOI: 10.1021/ja9723601 Supporting Info

Local Environment of Phosphorus Atoms in CoAPO4-n Molecular Sieves:  A 31P NMR Study Laurence Canesson, Yves Boudeville, and Alain Tuel pp 10754–10762 DOI: 10.1021/ja971080i Supporting Info

Redox-Active Ferrocenyl Dendrimers:  Thermodynamics and Kinetics of Adsorption, In-Situ Electrochemical Quartz Crystal Microbalance Study of the Redox Process and Tapping Mode AFM Imaging Kazutake Takada, Diego J. Díaz, Héctor D. Abruña, Isabel Cuadrado, Carmen Casado, Beatriz Alonso, Moisés Morán, and José Losada pp 10763–10773 DOI: 10.1021/ja9716315

Effect of Chain Extension on the Electrochemical and Electronic Properties of π-Conjugated Soluble Thienylenevinylene Oligomers El Hadj Elandaloussi, Pierre Frère, Pascal Richomme, J. Orduna, J. Garin, and Jean Roncali pp 10774–10784 DOI: 10.1021/ja9722739 Supporting Info

Long-Range Electron Transfer through a Lipid Monolayer at the Liquid/Liquid Interface Michael Tsionsky, Allen J. Bard, and Michael V. Mirkin pp 10785–10792 DOI: 10.1021/ja972134r

A Combined Gas-Phase, Solution-Phase, and Computational Study of C−H Activation by Cationic Iridium(III) Complexes Christian Hinderling, Derek Feichtinger, Dietmar A. Plattner, and Peter Chen pp 10793–10804 DOI: 10.1021/ja970995u Supporting Info

Origins of Stereoselective Carbene 1,2-Shifts and Cycloadditions of 1,2-Dichloroethylidene:  A Theoretical Model Based on CBS-Q and B3LYP Calculations Amy E. Keating, Miguel A. Garcia-Garibay, and K. N. Houk pp 10805–10809 DOI: 10.1021/ja970642v Supporting Info

Pulse Radiolysis Reduction of Myoglobin. Hydrated Electrons Diffusion Inside the Protein Matrix Véronique Le Tilly, Serge Pin, Bernard Hickel, and Bernard Alpert pp 10810–10814 DOI: 10.1021/ja9635591

Conical Intersection Mechanism for Photochemical Ring Opening in Benzospiropyran Compounds Paolo Celani, Fernando Bernardi, Massimo Olivucci, and Michael A. Robb pp 10815–10820 DOI: 10.1021/ja9717323

Rotational Resonance Tickling:  Accurate Internuclear Distance Measurement in Solids Philip R. Costa, Boqin Sun, and Robert G. Griffin pp 10821–10830 DOI: 10.1021/ja964313z

Intrinsic and Environmental Effects in the Structure and Magnetic Properties of Organic Molecular Magnets:  Bis(imino)nitroxide Vincenzo Barone, Alessandro Bencini, and Andrea di Matteo pp 10831–10837 DOI: 10.1021/ja9709785

Structures and Stabilities of C5H2 Isomers:  Quantum Chemical Studies Randal A. Seburg, Robert J. McMahon, John F. Stanton, and Jürgen Gauss pp 10838–10845 DOI: 10.1021/ja971412j

Computational Investigations of Carbenium Ion Reactions Relevant to Sterol Biosynthesis Corky Jenson and William L. Jorgensen pp 10846–10854 DOI: 10.1021/ja9714245 Supporting Info

Room-Temperature Desulfurization of Dibenzothiophene Mediated by [(i-Pr2PCH2)2NiH]2 David A. Vicic and William D. Jones pp 10855–10856 DOI: 10.1021/ja972544f Supporting Info

The [IrCl(Diphosphine)]2/Fluoride System. Developing Catalytic Asymmetric Olefin Hydroamination Romano Dorta, Patrick Egli, Fabio Zürcher, and Antonio Togni pp 10857–10858 DOI: 10.1021/ja972594k Supporting Info

C2-Symmetric Tin(II) Complexes as Chiral Lewis Acids. Catalytic Enantioselective Anti Aldol Additions of Enolsilanes to Glyoxylate and Pyruvate Esters David A. Evans, David W. C. MacMillan, and Kevin R. Campos pp 10859–10860 DOI: 10.1021/ja972547s Supporting Info

Wide Thermal Hysteresis for the Mononuclear Spin-Crossover Compound cis-Bis(thiocyanato)bis[N-(2‘-pyridylmethylene)-4-(phenylethynyl)anilino]iron(II) Jean-François Létard, Philippe Guionneau, Epiphane Codjovi, Olivier Lavastre, Georges Bravic, Daniel Chasseau, and Olivier Kahn pp 10861–10862 DOI: 10.1021/ja972441x Supporting Info

Electrochemical Control of Recognition Processes. A Three-Component Molecular Switch Robert Deans, Angelika Niemz, Eric C. Breinlinger, and Vincent M. Rotello pp 10863–10864 DOI: 10.1021/ja9728740 Supporting Info

Amino Acid-Derived Ligands for Transition Metals:  Catalysis via a Minimalist Interpretation of a Metalloprotein Brian Dangel, Michael Clarke, Jay Haley, Dalibor Sames, and Robin Polt pp 10865–10866 DOI: 10.1021/ja972135j

Noncovalent Synthesis of Layered and Channel Structures involving Sulfur-Mediated Hydrogen Bonds V. R. Pedireddi, Swati Chatterjee, Anupama Ranganathan, and C. N. R. Rao pp 10867–10868 DOI: 10.1021/ja972289z Supporting Info

Pronounced Chemo-, Regio-, and Stereoselective [2 + 2] Cycloaddition Reaction of Allenes toward Alkenes and Alkynes Masanari Kimura, Yoshikazu Horino, Yoshinori Wakamiya, Toshiya Okajima, and Yoshinao Tamaru pp 10869–10870 DOI: 10.1021/ja972614i Supporting Info

Construction of a Cyclic Tricubane Cluster [Cp*2Mo2Fe2S4]3(μ-S4)3 from the Mo2Fe2S4 Single Cubane Component Hiroyuki Kawaguchi, Kazuhiro Yamada, Shiho Ohnishi, and Kazuyuki Tatsumi pp 10871–10872 DOI: 10.1021/ja972330y Supporting Info

Enantiomeric Binding Elements Interacting at the Same Site of an SH3 Protein Receptor Sibo Feng and Stuart L. Schreiber pp 10873–10874 DOI: 10.1021/ja972255r Supporting Info

Electroactive Polymer Electrochemistry:  Part 2, Methods and Applications Edited by Michael E. G. Lyons (Trinity College, University of Dublin, Ireland). Plenum Press:  New York, 1996. xi + 332 pp. $85.00. ISBN 0-306-45158-1. Jerry A. Darsey p 10875 DOI: 10.1021/ja9657061

Molecular Level Artificial Photosynthetic Materials. Progress in Inorganic Chemistry Series, Volume 44 Edited by Kenneth D. Karlin (Johns Hopkins University, Maryland). Wiley:  New York, 1996. x + 421 pp. $125.00. ISBN 0-471-12535-0. John F. Endicott pp 10875–10876 DOI: 10.1021/ja965799m

Thermodynamics, Second Edition By N. A. Gokcen (Albany, Oregon) and R. G. Reddy (University of Alabama). Plenum Press:  New York, 1966. xv + 400 pp. $59.50. ISBN 0-306-45380-0. p 10876 DOI: 10.1021/ja965730e

Inorganic Membranes for Separation and Reaction. Membrane Science and Technology Series #3 By H. P. Hsieh (Alcoa Technical Center, PA). Elsevier:  Amsterdam, 1996. xviii + 591 pp. $297.00. ISBN 0-444-81677-1. p 10876 DOI: 10.1021/ja965803u

Issue 45

Structurally Modified Firefly Luciferase. Effects of Amino Acid Substitution at Position 286 Tuncer Arslan, Sergey V. Mamaev, Natalia V. Mamaeva, and Sidney M. Hecht pp 10877–10887 DOI: 10.1021/ja971927a Supporting Info

Mechanism of Inactivation of Neuronal Nitric Oxide Synthase by Nω-Allyl-l-Arginine Henry Q. Zhang, Robert P. Dixon, Michael A. Marletta, Dejan Nikolic, Richard Van Breemen, and Richard B. Silverman pp 10888–10902 DOI: 10.1021/ja964160f

The Propensities of Amino Acids To Form Parallel β-Sheets James S. Nowick and Shabana Insaf pp 10903–10908 DOI: 10.1021/ja972074p Supporting Info

Facile and Selective Electrostatic Stabilization of Uracil N(1)- Anion by a Proximate Protonated Amine:  A Chemical Implication for Why Uracil N(1) Is Chosen for Glycosylation Site Eiichi Kimura, Hideyuki Kitamura, Tohru Koike, and Motoo Shiro pp 10909–10919 DOI: 10.1021/ja972129n Supporting Info

Thermodynamics of the Binding of a Cationic Lipid to DNA Charles H. Spink and Jonathan B. Chaires pp 10920–10928 DOI: 10.1021/ja964324s Supporting Info

The Biosynthesis of Tropane Alkaloids in Datura stramonium: The Identity of the Intermediates between N-Methylpyrrolinium Salt and Tropinone Richard J. Robins, Timothy W. Abraham, Adrian J. Parr, John Eagles, and Nicholas J. Walton pp 10929–10934 DOI: 10.1021/ja964461p Supporting Info

Total Syntheses of (+)-Acutiphycin and (+)-trans-20,21-Didehydroacutiphycin Amos B. Smith, III, Sean S.-Y. Chen, Frances C. Nelson, Janice M. Reichert, and Brian A. Salvatore pp 10935–10946 DOI: 10.1021/ja972497r Supporting Info

Conjugative Interaction in Styrenes W. von E. Doering, Johannes Benkhoff, Peter Smart Carleton, and Marco Pagnotta pp 10947–10955 DOI: 10.1021/ja971040e Supporting Info

Self-Assembly of Tetra- and Hexanuclear Circular Helicates Bernold Hasenknopf, Jean-Marie Lehn, Nedjia Boumediene, Annick Dupont-Gervais, Alain Van Dorsselaer, Boris Kneisel, and Dieter Fenske pp 10956–10962 DOI: 10.1021/ja971204r Supporting Info

Corannulene. A Three-Step Synthesis1 Lawrence T. Scott, Pei-Chao Cheng, Mohammed M. Hashemi, Matthew S. Bratcher, Dayton T. Meyer, and Hope B. Warren pp 10963–10968 DOI: 10.1021/ja972019g

Water Catalyzed Hydrolysis of p-Nitrotrifluoroacetanilide and Trifluoroacetanilide. Carbonyl 18O-Exchange Does Not Accompany the Water Reaction H. Slebocka-Tilk, Christopher G. Rescorla, Salma Shirin, Andrew J. Bennet, and R. S. Brown pp 10969–10975 DOI: 10.1021/ja971463g

Highly Strained, Ring-Tilted [1]Ferrocenophanes Containing Group 16 Elements in the Bridge:  Synthesis, Structures, and Ring-Opening Oligomerization and Polymerization of [1]Thia- and [1]Selenaferrocenophanes Ron Rulkens, Derek P. Gates, David Balaishis, John K. Pudelski, Douglas F. McIntosh, Alan J. Lough, and Ian Manners pp 10976–10986 DOI: 10.1021/ja972043u Supporting Info

Free Radical Initiation Mechanisms in the Polymerization of Methyl Methacrylate and Styrene with 1,1,3,3-Tetramethylbutyl Peroxypivalate:  Addition of Neopentyl Radicals Tomoyuki Nakamura, W. Ken Busfield, Ian D. Jenkins, Ezio Rizzardo, San H. Thang, and Shuji Suyama pp 10987–10991 DOI: 10.1021/ja972240t

Synthesis and Enzymatic Phosphorylation of a Photoactivatable Dolichol Analogue D. Grassi, V. Lippuner, M. Aebi, J. Brunner, and A. Vasella pp 10992–10999 DOI: 10.1021/ja9721677

Use of Electron Microscopy and Microdiffraction for Zeolite Framework Comparison S. Nicolopoulos, J. M. González-Calbet, M. Vallet-Regi, M. A. Camblor, C. Corell, A. Corma, and M. J. Diaz-Cabañas pp 11000–11005 DOI: 10.1021/ja963703i

From Aggregates to Clusters. Facile Formation of Hetero-Metal−Metal Bonds through Reductive Desulfurization by CO in a Decapacitative Transformation of a {Pt2MS2} Tbp Frame to a {Pt2MS} Tetrahedral Core (M = Ag, Cu, and Ru) Huang Liu, Agnes L. Tan, K. F. Mok, Thomas C. W. Mak, Andrei S. Batsanov, Judith A. K. Howard, and T. S. Andy Hor pp 11006–11011 DOI: 10.1021/ja9718376 Supporting Info

Intramolecular Electronic Energy Transfer in Ruthenium(II) Diimine Donor/Pyrene Acceptor Complexes Linked by a Single C−C Bond Jerald A. Simon, Steven L. Curry, Russell H. Schmehl, Timothy R. Schatz, Piotr Piotrowiak, Xiaoqing Jin, and Randolph P. Thummel pp 11012–11022 DOI: 10.1021/ja970069f

Electronic and Geometric Structure of the CuA Site Studied by 1H NMR in a Soluble Domain of Cytochrome c Oxidase from Paracoccus denitrificans Claudio Luchinat, Aileen Soriano, Kristina Djinovic-Carugo, Matti Saraste, Bo G. Malmström, and Ivano Bertini pp 11023–11027 DOI: 10.1021/ja9715399

Synthesis and Characterization of Hydrotris(pyrazolyl)borate Dihydrogen/Hydride Complexes of Rhodium and Iridium Warren J. Oldham, Jr., Amber S. Hinkle, and D. M. Heinekey pp 11028–11036 DOI: 10.1021/ja971627t Supporting Info

Triamidoamine Complexes of Molybdenum and Tungsten That Contain Metal−E (E = N, P, and As) Single, Double, or Triple Bonds Nadia C. Mösch-Zanetti, Richard R. Schrock, William M. Davis, Klaus Wanninger, Scott W. Seidel, and Myra B. O'Donoghue pp 11037–11048 DOI: 10.1021/ja971727z Supporting Info

Activation of Nitroarenes in the Homogenous Catalytic Carbonylation of Nitroaromatics via an Oxygen-Atom-Transfer Mechanism Induced by Inner-Sphere Electron Transfer Steven J. Skoog and Wayne L. Gladfelter pp 11049–11060 DOI: 10.1021/ja971899w Supporting Info

Controlled Assembly of Regular Composite Nanowire Arrays and Their Multilayers Using Electropolymerized Polymers as Templates J. F. Liu, K. Z. Yang, and Z. H. Lu pp 11061–11065 DOI: 10.1021/ja9701321

Transient Intermediates in the Laser Flash Photolysis of Ketoprofen in Aqueous Solutions:  Unusual Photochemistry for the Benzophenone Chromophore L. J. Martínez and J. C. Scaiano pp 11066–11070 DOI: 10.1021/ja970818t

Quenching Processes in Hydrogen-Bonded Pairs:  Interactions of Excited Fluorenone with Alcohols and Phenols László Biczók, Tibor Bérces, and Henry Linschitz pp 11071–11077 DOI: 10.1021/ja972071c

Structure and Stability of Y-Conjugated Silylium Cations [Si(XH)3]+ (X = O, S, Se, and Te) Christina M. Marchand, Ulrich Pidun, Gernot Frenking, and Hansjörg Grützmacher pp 11078–11085 DOI: 10.1021/ja972226g Supporting Info

Trimerization of tert-Butylacetylene to 1,3,6-Tri(tert-butyl)fulvene Catalyzed by Titanium Aryloxide Compounds Eric S. Johnson, Gary J. Balaich, Phillip E. Fanwick, and Ian P. Rothwell pp 11086–11087 DOI: 10.1021/ja972306k Supporting Info

Synthesis and Reactivity of Fe(CO)4(η2-RCCR‘) (R, R‘ = CF3, H, Me) Compounds:  Hübel's Work Revisited and Beyond Jason Cooke and Josef Takats pp 11088–11089 DOI: 10.1021/ja971773z Supporting Info

A New Route to the Enantioselective Synthesis of Cycloheptenols. Temperature Effects in the Asymmetric Reductive Ring Opening of [3.2.1] Oxabicycloalkenes Mark Lautens and Tomislav Rovis pp 11090–11091 DOI: 10.1021/ja971770m Supporting Info

Peptide-Based Molecular Shuttles Alexander S. Lane, David A. Leigh, and Aden Murphy pp 11092–11093 DOI: 10.1021/ja971224t Supporting Info

Remarkable Discrimination in the Triplet Lifetimes of the Diastereomers of 1,4-Bis(p-methoxyphenyl)- 2,3-diphenylbutan-1,4-dione J. N. Moorthy, W. S. Patterson, and C. Bohne pp 11094–11095 DOI: 10.1021/ja971296k Supporting Info

Measurement of a Brønsted Nucleophile Coefficient and Insights into the Transition State for a Protein Tyrosine Kinase Kyonghee Kim and Philip A. Cole pp 11096–11097 DOI: 10.1021/ja972110k

Theoretical Prediction of a Facile Diels−Alder Reaction on the Si(100)-2×1 Surface R. Konecny and D. J. Doren pp 11098–11099 DOI: 10.1021/ja972247a

Vibrational Spectroscopic Studies of Diels−Alder Reactions with the Si(100)-2×1 Surface as a Dienophile Andrew V. Teplyakov, Maynard J. Kong, and Stacey F. Bent pp 11100–11101 DOI: 10.1021/ja972246i

Rational Design of a Calcium Sensing System Based on Induced Conformational Changes of Calmodulin Vesna Schauer-Vukasinovic, Lawrence Cullen, and Sylvia Daunert pp 11102–11103 DOI: 10.1021/ja972139o Supporting Info

Gold−Sulfur Interactions in Alkylthiol Self-Assembled Monolayers Formed on Gold Nanoparticles Studied by Solid-State NMR A. Badia, L. Demers, L. Dickinson, F. G. Morin, R. B. Lennox, and L. Reven pp 11104–11105 DOI: 10.1021/ja9726163 Supporting Info

An Electrically Conducting Star Polymer Fei Wang, R. David Rauh, and Timothy L. Rose pp 11106–11107 DOI: 10.1021/ja970896g Supporting Info

Palladium-Catalyzed α-Arylation of Ketones Michael Palucki and Stephen L. Buchwald pp 11108–11109 DOI: 10.1021/ja972593s Supporting Info

Diarylcarbene Cation Radicals:  Generation and Chemical Reactivity in Solution Darren G. Stoub and Joshua L. Goodman pp 11110–11111 DOI: 10.1021/ja972978a

Unexpected Synthetic Routes to Lanthanide Chalcogenido Clusters:  Sm8Se6(SePh)12(THF)8 and [Sm7S7(SePh)6(DME)7]+ Deborah Freedman, Thomas J. Emge, and J. G. Brennan pp 11112–11113 DOI: 10.1021/ja972059k Supporting Info

Synthesis of the First Cluster Complexes Bearing Three Quadruply Bridging CO Ligands:  X-ray Crystal Structure of [C5H3(SiMe3)2]WRu6(μ3-H)- (CO)18 Yun Chi, Chi-Jung Su, Shie-Ming Peng, and Gene-Hsiang Lee pp 11114–11115 DOI: 10.1021/ja9720927 Supporting Info

A Novel Peptide Nucleic Acid Monomer for Recognition of Thymine in Triple-Helix Structures Anne B. Eldrup, Otto Dahl, and Peter E. Nielsen pp 11116–11117 DOI: 10.1021/ja9717424 Supporting Info

Highly Diastereoselective Rhodium-Catalyzed Hydroformylation of Enol Ethers: A Carbonylation- Based Approach to Catalytic Aldol Synthesis James L. Leighton and Deirdre N. O'Neil pp 11118–11119 DOI: 10.1021/ja972121d Supporting Info

Origins of Unsaturation in Group 6 Metallaboranes. Synthesis, Crystal Structure, and Molecular Orbital Calculations for (Cp*MoCl)2B3H7 (Cp* = Pentamethylcyclopentadienyl) Simon Aldridge, Maoyu Shang, and Thomas P. Fehlner pp 11120–11121 DOI: 10.1021/ja972685h Supporting Info

Nonplanarity of Tetrafluorocyclobutadiene E. James Petersson, Jason C. Fanuele, Mark R. Nimlos, David M. Lemal, G. Barney Ellison, and J. George Radziszewski pp 11122–11123 DOI: 10.1021/ja971930u

The First Kinetically Stabilized Stannaneselone and Diselenastannirane:  Synthesis by Deselenation of a Tetraselenastannolane and Structures Masaichi Saito, Norihiro Tokitoh, and Renji Okazaki pp 11124–11125 DOI: 10.1021/ja972221j Supporting Info

Reaction of the Premarin Metabolite 4-Hydroxyequilenin Semiquinone Radical with 2‘-Deoxyguanosine:  Formation of Unusual Cyclic Adducts Li Shen, Shengxiang Qiu, Richard B. van Breemen, Fagen Zhang, Yumei Chen, and Judy L. Bolton pp 11126–11127 DOI: 10.1021/ja971396q Supporting Info

Light-Induced ESR Studies of the Heterofullerene Dimers K. Hasharoni, C. Bellavia-Lund, M. Keshavarz-K., G. Srdanov, and F. Wudl pp 11128–11129 DOI: 10.1021/ja972002y Supporting Info

Conformation, Lifetime, and Repair of 4‘-DNA Radicals Bernd Giese, Adrian Dussy, Eric Meggers, Mario Petretta, and Urs Schwitter pp 11130–11131 DOI: 10.1021/ja972769q Supporting Info

Triple C−H/N−H Activation by O2 for Molecular Engineering:  Heterobifunctionalization of the 19-Electron Redox Catalysts FeICp(arene) Stéphane Rigaut, Marie-Hélène Delville, and Didier Astruc pp 11132–11133 DOI: 10.1021/ja9725458 Supporting Info

Freeze-Quench Resonance Raman Spectroscopic Evidence for an Fe−CO Adduct during Acetyl-CoA Synthesis and Ni Involvement in CO Oxidation by Carbon Monoxide Dehydrogenase from Clostridium thermoaceticum J. Am. Chem. Soc. 1995, 117, 2653−2654 Di Qiu, Manoj Kumar, Stephen W. Ragsdale, and Thomas G. Spiro pp 11134–11135 DOI: 10.1021/ja9754214

Raman and Infrared Spectroscopy of Cyanide-Inhibited CO Dehydrogenase/Acetyl-CoA Synthase from Clostridium thermoaceticum:  Evidence for Bimetallic Enzymatic CO Oxidation [J. Am. Chem. Soc. 1996, 118, 10429−10435]. Di Qiu, Manoj Kumar, Stephen W. Ragsdale, and Thomas G. Spiro pp 11134–11135 DOI: 10.1021/ja975422w

Characterization of a Diiron(III) Peroxo Intermediate in the Reaction Cycle of Methane Monooxygenase Hydroxylase from Methylococcus capsulatus (Bath) J. Am. Chem. Soc. 1995, 117, 4997−4998 Katherine E. Liu, Ann M. Valentine, Di Qiu, Dale E. Edmondson, Evan H. Appelman, Thomas G. Spiro, and Stephen J. Lippard pp 11134–11135 DOI: 10.1021/ja975423o

Detergents in the Environment. (Surfactant Science Series. Volume 65) Edited by Milan Johann Schwuger (Institute of Applied Physical Chemistry, Research Center Jülich GmbH, Jülich, Germany). Marcel Dekker:  New York, 1996. 336 pp. $145.00. ISBN 0-8247-9396-X. Ray von Wandruszka p 11135 DOI: 10.1021/ja965783w

Un-Scan-It Silk Scientific:  P.O. Box 533, Orem, Utah 84059. Telephone 801-377-6978. Fax:  801-378-5474 Pamela J. Carter and H. Holden Thorp p 11135 DOI: 10.1021/ja975906s

The Maillard Reaction:  Consequences for the Chemical and Life Sciences Edited by R. Ikan (Hebrew University of Jerusalem, Israel). Wiley:  New York, 1996. xii + 214 pp. $89.95. ISBN 0-471-96300-3. Milton S. Feather and Valeri V. Mossine p 11136 DOI: 10.1021/ja965800h

Attenuated Total Reflectance Spectroscopy of Polymers:  Theory and Practice. Polymer Surfaces and Interfaces Series By Marek W. Urban (North Dakota State University). American Chemical Society:  Washington, DC, 1996. xvi + 215 pp. $99.95. ISBN 0-8412-3348-9. Amy S. Glass p 11136 DOI: 10.1021/ja965804m

Issue 46

Combined Chemical and Enzymatic Synthesis of a C-Glycopeptide and Its Inhibitory Activity toward Glycoamidases Lai-Xi Wang, Mei Tang, Tadashi Suzuki, Ken Kitajima, Yasuo Inoue, Sadako Inoue, Jian-Qiang Fan, and Yuan C. Lee pp 11137–11146 DOI: 10.1021/ja9712027

Glucosidase-Catalyzed Hydrolysis of α-d-Glucopyranosyl Pyridinium Salts:  Kinetic Evidence for Nucleophilic Involvement at the Glucosidation Transition State Xicai Huang, Kelly S. E. Tanaka, and Andrew J. Bennet pp 11147–11154 DOI: 10.1021/ja963733l Supporting Info

Structure and Chemical Behavior of an η5-(1-Azapentadienyl)lithium Derivative Generated by Deprotonation Reactions Starting from 9-(N-tert-Butylaminomethyl)fluorene or 6-(tert-Butylamino)dibenzofulvene Martin Könemann, Gerhard Erker, Roland Fröhlich, and Ernst-Ulrich Würthwein pp 11155–11164 DOI: 10.1021/ja964439w Supporting Info

Internal Fluorocarbon Coordination as a Tool for the Protection of Active Catalytic Sites:  Experimental Characterization of the Zr···F−C Interaction in the Group 4 Metallocene(butadiene)/B(C6F5)3 Betaine Ziegler Catalyst Systems Jörn Karl, Gerhard Erker, and Roland Fröhlich pp 11165–11173 DOI: 10.1021/ja971720h Supporting Info

Effect of Metal on the Stereospecificity of 2-Arylindene Catalysts for Elastomeric Polypropylene Michael D. Bruce, Geoffrey W. Coates, Elisabeth Hauptman, Robert M. Waymouth, and Joseph W. Ziller pp 11174–11182 DOI: 10.1021/ja971895r Supporting Info

The 2-Oxocyclopentanecarboxylic Acid Keto−Enol System in Aqueous Solution:  Generation of the Enol by Hydration of an Acylketene Y. Chiang, A. J. Kresge, V. A. Nikolaev, and V. V. Popik pp 11183–11190 DOI: 10.1021/ja9704390 Supporting Info

Effects of Orbital Ordering on Electronic Communication in Multiporphyrin Arrays Jon-Paul Strachan, Steve Gentemann, Jyoti Seth, William A. Kalsbeck, Jonathan S. Lindsey, Dewey Holten, and David F. Bocian pp 11191–11201 DOI: 10.1021/ja971678q Supporting Info

Temperature Dependence of the Photoisomerization of cis-1-(2-Anthryl)-2-phenylethene. Conformer-Specificity, Torsional Energetics and Mechanism Jack Saltiel, Yuxin Zhang, and Donald F. Sears, Jr. pp 11202–11210 DOI: 10.1021/ja972293a

Structural Characterization of Valinomycin and Nonactin at the Air−Solution Interface by Grazing Incidence X-ray Diffraction Hanna Rapaport, Ivan Kuzmenko, Kristian Kjaer, Paul Howes, Wim Bouwman, Jens Als-Nielsen, Leslie Leiserowitz, and Meir Lahav pp 11211–11216 DOI: 10.1021/ja971410z

Are Glycosyl Triflates Intermediates in the Sulfoxide Glycosylation Method? A Chemical and 1H, 13C, and 19F NMR Spectroscopic Investigation David Crich and Sanxing Sun pp 11217–11223 DOI: 10.1021/ja971239r Supporting Info

An Efficient Catalytic Asymmetric Epoxidation Method Zhi-Xian Wang, Yong Tu, Michael Frohn, Jian-Rong Zhang, and Yian Shi pp 11224–11235 DOI: 10.1021/ja972272g Supporting Info

Reversible Cycloaddition of Isocyanates to Ruthenium Silylene Complexes Gregory P. Mitchell and T. Don Tilley pp 11236–11243 DOI: 10.1021/ja972020f Supporting Info

C−C and C−H Bond Activation at Ruthenium(II):  The Stepwise Degradation of a Neopentyl Ligand to a Trimethylenemethane Ligand Kristopher McNeill, Richard A. Andersen, and Robert G. Bergman pp 11244–11254 DOI: 10.1021/ja972131e Supporting Info

Ab Initio and Semiempirical Study of the Effect of Ethereal Solvent on Aggregation of a Lithium Enolate Alessandro Abbotto, Andrew Streitwieser, and Paul von Rague Schleyer pp 11255–11268 DOI: 10.1021/ja971715d Supporting Info

Locating Regions of Maximum Chiral Discrimination:  A Computational Study of Enantioselection on a Popular Chiral Stationary Phase Used in Chromatography Kenny B. Lipkowitz, Robert Coner, and Michael A. Peterson pp 11269–11276 DOI: 10.1021/ja972327e Supporting Info

Characterization of Low-Barrier Hydrogen Bonds. 7. Relationship between Strength and Geometry of Short-Strong Hydrogen Bonds. The Formic Acid−Formate Anion Model System. An ab Initio and DFT Investigation C. Jay Smallwood and Michael A. McAllister pp 11277–11281 DOI: 10.1021/ja972517p

The Effects of Chain Length and Thermal Denaturation on Helix-Forming Peptides:  A Mode-Specific Analysis Using 2D FT-IR D. K. Graff, B. Pastrana-Rios, S. Yu. Venyaminov, and F. G. Prendergast pp 11282–11294 DOI: 10.1021/ja970512m

Ti(II)-Mediated Allenyne Cyclization as a New Tool for Generation of Chiral Organotitanium Compounds. Asymmetric Generation of Cyclic Allyltitanium Reagents with No Chiral Auxiliary Hirokazu Urabe, Tohru Takeda, Daigaku Hideura, and Fumie Sato pp 11295–11305 DOI: 10.1021/ja972045e Supporting Info

Diffusion-Limited Size-Selective Ion Sensing Based on SAM-Supported Peptide Nanotubes Kianoush Motesharei and M. Reza Ghadiri pp 11306–11312 DOI: 10.1021/ja9727171

First Intermolecular Regiospecific Palladium-Catalyzed Enyne−Diyne [4 + 2] Cross-Benzannulation Reaction Vladimir Gevorgyan, Akira Takeda, and Yoshinori Yamamoto pp 11313–11314 DOI: 10.1021/ja971935r Supporting Info

Model Reactions of Thyroxine Biosynthesis. Identification of the Key Intermediates in Thyroxine Formation from 3,5-Diiodo-l-tyrosine and 4-Hydroxy-3,5-diiodophenylpyruvic Acid Vibha B. Oza, Grzegorz M. Salamonczyk, Zhi-wei Guo, and Charles J. Sih pp 11315–11316 DOI: 10.1021/ja9719034 Supporting Info

Replacement of a Cyclometalated Terdentate Diamino Ligand by a Phosphorus Analogue. Isolation and Crystallographic Characterization of an Intermediate in Aryl C−H Bond Activation in Models of Dendrimer-Bound Organometallic Catalysts Paulo Dani, Thomas Karlen, Robert A. Gossage, Wilberth J. J. Smeets, Anthony L. Spek, and Gerard van Koten pp 11317–11318 DOI: 10.1021/ja9710060 Supporting Info

Propargyl Alcohols as Synthons for Allenols in Conjugate Addition Barry M. Trost, Lars Krause, and Moshe Portnoy pp 11319–11320 DOI: 10.1021/ja972548k Supporting Info

Synthesis and Photophysical Studies of Silylene-Spaced Divinylarene Copolymers. Molecular Weight Dependent Fluorescence of Alternating Silylene−Divinylbenzene Copolymers Ruey-Min Chen, Kuo-Ming Chien, Ken-Tsung Wong, Bih-Yaw Jin, and Tien-Yau LuhJui-Hung Hsu and Wunshain Fann pp 11321–11322 DOI: 10.1021/ja971373b Supporting Info

Facile Framework Cleavage Reactions of a Completely Condensed Silsesquioxane Framework Frank J. Feher, Daravong Soulivong, and Gregory T. Lewis pp 11323–11324 DOI: 10.1021/ja972436t

The Absolute Configuration of Ciguatoxin Masayuki Satake, Akio Morohashi, Hiroki Oguri, Tohru Oishi, Masahiro Hirama, Nobuyuki Harada, and Takeshi Yasumoto pp 11325–11326 DOI: 10.1021/ja972482t Supporting Info

An Oxyallyl (or Oxyallyl-like) Geometry Is a Key Structure in the Reaction of Ketenes and Diazoalkanes To Form Cyclopropanones T. S. Sorensen and F. Sun pp 11327–11328 DOI: 10.1021/ja972680k Supporting Info

Electron Transfer between Mechanically Linked Porphyrins in a [2]Rotaxane Myriam Linke, Jean-Claude Chambron, Valérie Heitz, and Jean-Pierre Sauvage pp 11329–11330 DOI: 10.1021/ja972413e Supporting Info

Total Synthesis of (+)-Damavaricin D William R. Roush, D. Scott Coffey, and David J. Madar pp 11331–11332 DOI: 10.1021/ja971828x Supporting Info

Cyclization of (3S)29-Methylidene-2,3-oxidosqualene by Bacterial Squalene:Hopene Cyclase: Irreversible Enzyme Inactivation and Isolation of an Unnatural Dammarenoid Ikuro Abe, Tongyun Dang, Yi Feng Zheng, Brenda A. Madden, Corinna Fei, Karl Poralla, and Glenn D. Prestwich pp 11333–11334 DOI: 10.1021/ja972770p Supporting Info

Stereospecificity of the (E)- and (Z)-11 Myristoyl CoA Desaturases in the Biosynthesis of Spodoptera littoralis Sex Pheromone Isabel Navarro, Imma Font, Gemma Fabriàs, and Francisco Camps pp 11335–11336 DOI: 10.1021/ja972577v Supporting Info

Identification of a Covalent Intermediate between Glutathione and Cysteine13 Formed during Catalysis by Tetrachlorohydroquinone Dehalogenase Darla L. McCarthy, Donna F. Louie, and Shelley D. Copley pp 11337–11338 DOI: 10.1021/ja9726365

Gain of Function Mutagenesis of the Erythromycin Polyketide Synthase. 2. Engineered Biosynthesis of an Eight-Membered Ring Tetraketide Lactone Camilla M. Kao, Michael McPherson, Robert N. McDaniel, Hong Fu, David E. Cane, and Chaitan Khosla pp 11339–11340 DOI: 10.1021/ja972609e

Chiral Triarylcarbenium Ions in Asymmetric Mukaiyama Aldol Additions Chien-Tien Chen, Shi-Deh Chao, Kuao-Chung Yen, Chung-Horng Chen, Iy-Chen Chou, and Sang-Weng Hon pp 11341–11342 DOI: 10.1021/ja970900o Supporting Info

Nitrosamine/2,3-Dichloro-5,6-dicyano- 1,4-benzoquinone (DDQ) Complexes and the Formation of Donor-Appended DDQ Chains in the Solid State Melinda L. Greer and Silas C. Blackstock pp 11343–11344 DOI: 10.1021/ja972254z Supporting Info

Induction of Helical Chirality in Linear Oligosilanes by Terminal Chiral Substituents Kuninori Obata, Chizuko Kabuto, and Mitsuo Kira pp 11345–11346 DOI: 10.1021/ja972543n Supporting Info

Large Improvement of the Lower Detection Limit of Ion-Selective Polymer Membrane Electrodes Tomasz Sokalski, Alan Ceresa, Titus Zwickl, and Ernö Pretsch pp 11347–11348 DOI: 10.1021/ja972932h

The S0 State of the Oxygen-Evolving Complex in Photosystem II Is Paramagnetic:  Detection of an EPR Multiline Signal Johannes Messinger, John H. Robblee, Wa On Yu, Kenneth Sauer, Vittal K. Yachandra, and Melvin P. Klein pp 11349–11350 DOI: 10.1021/ja972696a Supporting Info

Structure and Design of Potent and Selective Cathepsin K Inhibitors Dennis S. Yamashita, Ward W. Smith, Baoguang Zhao, Cheryl A. Janson, Thaddeus A. Tomaszek, Mary J. Bossard, Mark A. Levy, Hye-Ja Oh, Thomas J. Carr, Scott K. Thompson, Carl F. Ijames, Steven A. Carr, Michael McQueney, Karla J. D'Alessio, Bernard Y. Amegadzie, Charles R. Hanning, Sherin Abdel-Meguid, Renee L. DesJarlais, John G. Gleason, and Daniel F. Veber pp 11351–11352 DOI: 10.1021/ja972204u Supporting Info

Synthesis of the Tricyclic Core of Eleutherobin and Sarcodictyins and Total Synthesis of Sarcodictyin A K. C. Nicolaou, J.-Y. Xu, S. Kim, T. Ohshima, S. Hosokawa, and J. Pfefferkorn pp 11353–11354 DOI: 10.1021/ja973000g Supporting Info

Physical Properties of Polymers Handbook J. Am. Chem. Soc. 1997, 119, 4096 James E. Mark (University of Cincinnati), American Institute of Physics Press: Woodbury, NY. 1996. xv + 723 pp. ISBN 1-56396-295-0. Reviewed by Patty Wisian-Neilson p 11355 DOI: 10.1021/ja975418k

Enzyme Catalysis in Organic Synthesis:  A Comprehensive Handbook:  Vol. 1 J. Am. Chem. Soc. 1996, 118, 11340 K. Drauz(R&D Pharmaceuticals/Intermediates, Germany) and H. Waldmann (Universitt Karlsruhe, Germany). VCH: New York. 1995. xxv + 504 pp. DM 498.00. ISBN 3-527-28479-6. Reviewed by Susan M. Miller. p 11355 DOI: 10.1021/ja975419c

Physical Properties of Polymers Handbook, CD-ROM J. Am. Chem. Soc. 1997, 119, 4096 James E. Mark(University of Cincinnati), American Institute of Physics Press: Woodbury, NY. 1996. ISBN 1-56396-598-4. Reviewed by Patty Wisian-Neilson. p 11355 DOI: 10.1021/ja975420b

The Mathematica Book, Third Edition By Stephen Wolfram. Cambridge University Press:  New York, 1996. 1395 pp. $59.95. ISBN 0-521-58889-8. Edward R. Grant pp 11355–11356 DOI: 10.1021/ja965653n

Principles of Polymer Systems By Ferdinand Rodriguez (Cornell University). Taylor and Francis:  Washington, DC, 1996. xiv + 732 pp. ISBN 1-56032-325-6. William M. Risen, Jr. p 11356 DOI: 10.1021/ja9657162

Issue 47

Comparative Study of 17O and 18O Isotope Effects As a Probe for Dioxygen Activation:  Application to the Soybean Lipoxygenase Reaction Michael H. Glickman, Steve Cliff, Mark Thiemens, and Judith P. Klinman pp 11357–11361 DOI: 10.1021/ja970689g

Catalysis of Hydrolysis and Transesterification Reactions of p-Nitrophenyl Esters by a Designed Helix−Loop−Helix Dimer Kerstin S. Broo, Lars Brive, Per Ahlberg, and Lars Baltzer pp 11362–11372 DOI: 10.1021/ja970854s

High-Intensity UV Laser Photolysis of DNA and Purine 2‘-Deoxyribonucleosides:  Formation of 8-Oxopurine Damage and Oligonucleotide Strand Cleavage as Revealed by HPLC and Gel Electrophoresis Studies D. Angelov, A. Spassky, M. Berger, and J. Cadet pp 11373–11380 DOI: 10.1021/ja971728r

A Non-Outer Sphere Mechanism for the Ionization of Aryl Vinyl Sulfides by Triarylaminium Salts Nathan L. Bauld, J. Todd Aplin, Wang Yueh, and Ainhoa Loinaz pp 11381–11389 DOI: 10.1021/ja9706965

Dynamics of Proton Transfer from Radical Cations. Addition−Elimination or Direct Proton Transfer? Vernon D. Parker, You Tein Chao, and Gang Zheng pp 11390–11394 DOI: 10.1021/ja973031b

Metal-Ion Valencies of the FeMo Cofactor in CO-Inhibited and Resting State Nitrogenase by 57Fe Q-Band ENDOR Hong-In Lee, Brian J. Hales, and Brian M. Hoffman pp 11395–11400 DOI: 10.1021/ja971508d Supporting Info

2CH3CN(n-Bu4N)2[{Ir(1,5-COD)}6W4O16]·2CH3CN:  A Hybrid Inorganic−Organometallic, Flexible Cavity Host, Acetonitrile−Guest Complex Composed of a [W4O4]n+ Tetratungstate Cube and Six Polyoxoanion-Supported (1,5-COD)Ir+ Organometallic Groups Yoshihito Hayashi, Frank Müller, Yin Lin, Susie M. Miller, Oren P. Anderson, and Richard G. Finke pp 11401–11407 DOI: 10.1021/ja970336h Supporting Info

Two-Dimensional Real-Space Analysis of Optical Excitations in Acceptor-Substituted Carotenoids Sergei Tretiak, Vladimir Chernyak, and Shaul Mukamel pp 11408–11419 DOI: 10.1021/ja9720164

The Anionic Zirconocene Trihydride:  [Cp*2ZrH3]- Nola Etkin, Aaron J. Hoskin, and Douglas W. Stephan pp 11420–11424 DOI: 10.1021/ja972197+ Supporting Info

Design, Reactivities, and Practical Application of Dialkylzinc Hydride Ate Complexes Generated in Situ from Dialkylzinc and Metal Hydride. A New Methodology for Activation of NaH and LiH under Mild Conditions Masanobu Uchiyama, Shozo Furumoto, Mariko Saito, Yoshinori Kondo, and Takao Sakamoto pp 11425–11433 DOI: 10.1021/ja9718477

Isomeric Intraconversion among Penta- and Hexacoordinate Cyclic Oxyphosphoranes via Oxygen Atom Coordination1,2 A. Chandrasekaran, Roberta O. Day, and Robert R. Holmes pp 11434–11441 DOI: 10.1021/ja9722988 Supporting Info

Density Functional Study on the Electronic Structures of Model Peroxidase Compounds I and II Hiroshi Kuramochi, Louis Noodleman, and David A. Case pp 11442–11451 DOI: 10.1021/ja970574c Supporting Info

Thermochemistry of Homolytic C−C, C−H, and C−Cl Bond Dissociations in Polychloroethanes:  Benchmark Electronic Structure Calculations Jerzy Cioslowski, Guanghua Liu, and David Moncrieff pp 11452–11457 DOI: 10.1021/ja971108q Supporting Info

First Observation of the Key Intermediate in the “Light-Switch” Mechanism of [Ru(phen)2dppz]2+ E. J. C. Olson, D. Hu, A. Hörmann, A. M. Jonkman, M. R. Arkin, E. D. A. Stemp, J. K. Barton, and P. F. Barbara pp 11458–11467 DOI: 10.1021/ja971151d

Direct Observation and Structural Characterization of the Encounter Complex in Bimolecular Electron Transfers with Photoactivated Acceptors R. Rathore, S. M. Hubig, and J. K. Kochi pp 11468–11480 DOI: 10.1021/ja971188y

Structure, Stoichiometry, and Morphology of Bromine Hydrate Konstantin A. Udachin, Gary D. Enright, Christopher I. Ratcliffe, and John A. Ripmeester pp 11481–11486 DOI: 10.1021/ja971206b Supporting Info

Force Fields for “Ultrafast” Photochemistry:  The S2 (1Bu) → S1 (2Ag) → S0 (1Ag) Reaction Path for all-trans-Hexa-1,3,5-triene Marco Garavelli, Paolo Celani, Fernando Bernardi, Michael A. Robb, and Massimo Olivucci pp 11487–11494 DOI: 10.1021/ja971280u Supporting Info

A Steady-State and Picosecond Pump-Probe Investigation of the Photophysics of an Acyl and a Bis(acyl)phosphine Oxide Steffen Jockusch, Igor V. Koptyug, Peter F. McGarry, Gregory W. Sluggett, Nicholas J. Turro, and Diana M. Watkins pp 11495–11501 DOI: 10.1021/ja971630c

A Charge Density Analysis of Cationic and Anionic Hydrogen Bonds in a “Proton Sponge” Complex Paul R. Mallinson, Krzysztof Woźniak, Garry T. Smith, and Kirsty L. McCormack pp 11502–11509 DOI: 10.1021/ja971940v Supporting Info

Hybrid Redox Polyethers:  Molecular Melts of Metalloporphyrins Jeffrey W. Long, Il Kwang Kim, and Royce W. Murray pp 11510–11515 DOI: 10.1021/ja972081d

Reversed Lewis Acidity of Mixed Boron Halides:  An Infrared Study of the Van der Waals Complexes of BFxCly with CH3F in Cryosolution B. J. van der Veken and E. J. Sluyts pp 11516–11522 DOI: 10.1021/ja9723850

The Lowest Excited Singlet States of 1-Azaadamantane and 1-Azabicyclo[2.2.2]octane:  Fluorescence Excitation Spectroscopy and Density Functional Calculations Jurriaan M. Zwier, Piet G. Wiering, Albert M. Brouwer, Dick Bebelaar, and Wybren Jan Buma pp 11523–11533 DOI: 10.1021/ja972411u

Preparation of an Unsymmetrically Labeled Allylic Hydroperoxide and Study of Its Allylic Peroxyl Radical Rearrangement Jennifer R. Lowe and Ned. A. Porter pp 11534–11535 DOI: 10.1021/ja9723038 Supporting Info

Bis(trimethylsilyl) Peroxide Extends the Range of Oxorhenium Catalysts for Olefin Epoxidation Andrei K. Yudin and K. Barry Sharpless pp 11536–11537 DOI: 10.1021/ja973043x Supporting Info

Synthesis and C−H Activation Reactions of Cyclometalated Complexes of Ir(III):  Cp*(PMe3)Ir(CH3)+ Does Not Undergo Intermolecular C−H Activation in Solution via a Cyclometalated Intermediate Hans F. Luecke and Robert G. Bergman pp 11538–11539 DOI: 10.1021/ja972340z Supporting Info

Determination of the Electron Spin Density on the Phenolic Oxygen of the Tyrosyl Radical of Photosystem II François Dole, Bruce A. Diner, Curtis W. Hoganson, Gerald T. Babcock, and R. David Britt pp 11540–11541 DOI: 10.1021/ja9717727

Difference Fourier Transform Infrared Evidence for Ester Bonds Linking the Heme Group in Myeloperoxidase, Lactoperoxidase, and Eosinophil Peroxidase Ingeborg M. Kooter, Antonio J. Pierik, Maarten Merkx, Bruce A. Averill, Nicole Moguilevsky, Alex Bollen, and Ron Wever pp 11542–11543 DOI: 10.1021/ja9725460

Facile Activation of Carbon−Fluorine Bonds in Saturated Fluoroalkyl Ligands by Coordinated Water in Fluoroalkyl Aqua Complexes of Rhodium Russell P. Hughes and Danielle C. LindnerArnold L. Rheingold and Louise M. Liable-Sands pp 11544–11545 DOI: 10.1021/ja9723388 Supporting Info

Transition between Concerted and Stepwise Dissociative Electron Transfers. An Example of How a Change of Temperature May Trigger a Change in Mechanism in Electrochemical Experiments Claude P. Andrieux, Jean-Michel Savéant, and Caroline Tardy pp 11546–11547 DOI: 10.1021/ja9726062

Tricyclo-DNA:  A Phosphodiester-Backbone Based DNA Analog Exhibiting Strong Complementary Base-Pairing Properties Ralph Steffens and Christian J. Leumann pp 11548–11549 DOI: 10.1021/ja972597x Supporting Info

Proton Spillover Promoted Isomerization of n-Butylenes on Pd-Black Cathodes/Nafion 117 Lloyd Ploense, Maria Salazar, Bogdan Gurau, and E. S. Smotkin pp 11550–11551 DOI: 10.1021/ja9728841

Experimental Confirmation of the Iminocyclohexadienyl Cation-like Structure of Arylnitrenium Ions:  Time-Resolved IR Studies of Diphenylnitrenium Ion Sanjay Srivastava and John P. ToscanoRicardo J. Moran and Daniel E. Falvey pp 11552–11553 DOI: 10.1021/ja9729342

Synthesis of Water-Soluble Paclitaxel Derivatives by Enzymatic Acylation Yuri L. Khmelnitsky, Cheryl Budde, J. Michael Arnold, Alexander Usyatinsky, Douglas S. Clark, and Jonathan S. Dordick pp 11554–11555 DOI: 10.1021/ja973103z Supporting Info

Opportunities for Probing the Structure and Mechanism of Porphobilinogen Synthase by Raman Spectroscopy John Clarkson, Eileen K. Jaffe, Robert M. Petrovich, Jian Dong, and Paul R. Carey pp 11556–11557 DOI: 10.1021/ja971357e

Determination of Trace Elements Edited by Zeev B. Alfassi (Ben Gurion University). VCH:  Weinheim. 1994. xiv + 608 pp. $165.00. ISBN 3-527-28424-9. Henry O. Daley, Jr. p 11558 DOI: 10.1021/ja9551392

From Chemical Topology to Three-Dimensional Geometry:  Topics in Applied Chemistry Series Edited by Alexandru T. Balaban (Polytechnic University, Bucharest, Romania). Plenum Press:  New York, 1997. xxiii + 420 pp. $125.00. ISBN 0-306-45462-9. R. Bruce King p 11558 DOI: 10.1021/ja975561d

Advances in Chemical Physics, Volume XCVI Edited by I. Progogine (The University of Texas at Austin) and Stuart A. Rice (The University of Chicago). Wiley:  New York, 1996. ix + 330 pp. $125.00. ISBN 0-471-15652-3. Alexis Delano O. Bawagan pp 11558–11559 DOI: 10.1021/ja965768r

The Chemistry of Free Radical Polymerization By Graeme Moad (CSIRO, Division of Chemicals and Polymers) and David H. Solomon (University of Melbourne). Elsevier:  Oxford, U.K., 1995. xvi + 408 pp. $120.00. ISBN 0-08-042078-8. Karl R. Kopecky p 11559 DOI: 10.1021/ja9656614

Modern Aspects of Electrochemistry, No. 29 Edited by J. O'M. Bockris (Texas A&M University), B. E. Conway (University of Ottowa), and R. E. White (University of South Carolina). Plenum Press:  New York, 1996. xi + 490 pp. $110.00. ISBN 0-306-45162-X. Michael J. Weaver pp 11559–11560 DOI: 10.1021/ja9656558

Principles and Practice of Heterogeneous Catalysis By J. M. Thomas (University of Cambridge) and W. J. Thomas (University of Bath). VCH:  Weinheim, 1997. xxiii + 669 pp. DM88.00. ISBN 3-527-29239-X. Gustavo Larsen p 11560 DOI: 10.1021/ja975538s

Advances in Dendritic Macromolecules, Vol. 3 Edited by George R. Newkome (University of South Florida). JAI Press:  Greenwich, CT, 1996. xii + 201 pp. $109.50. ISBN 0-7623-0069-8. Robert Engel p 11560 DOI: 10.1021/ja975586c

Issue 48

A Mechanistic and Structural Investigation of the (−)-Sparteine Mediated Asymmetric Benzylic Lithiation Substitution Reactions of N-Boc-N-(p-methoxyphenyl)benzylamine Neil C. Faibish, Yong Sun Park, Steven Lee, and Peter Beak pp 11561–11570 DOI: 10.1021/ja972225o

Ligand Binding in the Catalytic Antibody 17E8. A Free Energy Perturbation Calculation Study Thomas Fox, Thomas S. Scanlan, and Peter A. Kollman pp 11571–11577 DOI: 10.1021/ja964315j

Serine-Based Cyclodepsipeptides on an Adamantane Building Block:  Design, Synthesis, and Characterization of a Novel Family of Macrocyclic Membrane Ion-Transporting Depsipeptides Darshan Ranganathan, V. Haridas, K. P. Madhusudanan, Raja Roy, R. Nagaraj, and G. B. John pp 11578–11584 DOI: 10.1021/ja971517m Supporting Info

Confirmation of Excited-State Proton Transfer and Ground-State Heterogeneity in Hypericin by Fluorescence Upconversion D. S. English, K. Das, K. D. Ashby, J. Park, J. W. Petrich, and E. W. Castner, Jr. pp 11585–11590 DOI: 10.1021/ja9721071

Kinetics and Mechanism of RNA Binding by Triplex Tethered Oligonucleotide Probes Arikha C. Moses and Alanna Schepartz pp 11591–11597 DOI: 10.1021/ja971468d

Generation and Reaction of Monocarbonyliodonium Ylides:  Ester Exchange of (Z)-(β-Acetoxyvinyl)iodonium Salts with Lithium Ethoxide and Synthesis of α,β-Epoxy Ketones Masahito Ochiai, Yutaka Kitagawa, and Shinji Yamamoto pp 11598–11604 DOI: 10.1021/ja971688r Supporting Info

[3 + 2] Cycloadditions and Protonation by Alcohols of Photochemically Generated Nitrile Ylides from 2H-Azirines. Formation and Reactivities of Azaallenium Cations Evelyn Albrecht, Jochen Mattay, and Steen Steenken pp 11605–11610 DOI: 10.1021/ja971648n

Nanoscale Tectonics:  Self-Assembly, Characterization, and Chemistry of a Novel Class of Organoplatinum Square Macrocycles Joseph Manna, Christopher J. Kuehl, Jeffery A. Whiteford, Peter J. Stang, David C. Muddiman, Steven A. Hofstadler, and Richard D. Smith pp 11611–11619 DOI: 10.1021/ja972668s

Photooxidation of Platinum(II) Diimine Dithiolates William B. Connick and Harry B. Gray pp 11620–11627 DOI: 10.1021/ja9723803 Supporting Info

Direct Detection and Measurement of Electron Relays in a Multicentered Enzyme:  Voltammetry of Electrode-Surface Films of E. coli Fumarate Reductase, an Iron−Sulfur Flavoprotein Hendrik A. Heering, Joel H. Weiner, and Fraser A. Armstrong pp 11628–11638 DOI: 10.1021/ja9723242

Ligand Metathesis in Surface-Bound Alkoxyzirconium Complexes Susan K. VanderKam, Gang Lu, Steven L. Bernasek, and Jeffrey Schwartz pp 11639–11642 DOI: 10.1021/ja972790r Supporting Info

A Semisynthetic Metalloenzyme Based on a Protein Cavity That Catalyzes the Enantioselective Hydrolysis of Ester and Amide Substrates Ronald R. Davies and Mark D. Distefano pp 11643–11652 DOI: 10.1021/ja970820k Supporting Info

Hydrogel-Coated Glassy Nanospheres:  A Novel Method for the Synthesis of Shell Cross-Linked Knedels Haiyong Huang, Tomasz Kowalewski, Edward E. Remsen, Rolf Gertzmann, and Karen L. Wooley pp 11653–11659 DOI: 10.1021/ja9717469

Solid Vesicle Membrane Made of meso-Tetrakis[(bixinylamino)-o-phenyl]porphyrins Teruyuki Komatsu, Eishun Tsuchida, Christoph Böttcher, Dan Donner, Christian Messerschmidt, Ulrich Siggel, Wolfgang Stocker, Jürgen P. Rabe, and Jürgen-Hinrich Fuhrhop pp 11660–11665 DOI: 10.1021/ja971393d Supporting Info

Closed-Shell Ion Pairs:  Cation and Aggregate Dynamics of Tetraalkylammonium Salts in an Ion-Pairing Solvent Huaping Mo, Anping Wang, Patricia Stone Wilkinson, and Thomas C. Pochapsky pp 11666–11673 DOI: 10.1021/ja9723139

Organic Spin Clusters:  Ferromagnetic Spin Coupling through a Biphenyl Unit in Polyarylmethyl Tri-, Penta-, Hepta-, and Hexadecaradicals Andrzej Rajca, Jirawat Wongsriratanakul, and Suchada Rajca pp 11674–11686 DOI: 10.1021/ja972378b Supporting Info

Highly Active Pd(II) PCP-Type Catalysts for the Heck Reaction Manuela Ohff, Andreas Ohff, Milko E. van der Boom, and David Milstein pp 11687–11688 DOI: 10.1021/ja9729692 Supporting Info

Regiochemical Effect of an α-Trimethylsilyl Group on Epoxide Reactions with Non-nucleophilic Bases Paul F. Hudrlik, Laykea Tafesse, and Anne M. Hudrlik pp 11689–11690 DOI: 10.1021/ja972256j Supporting Info

Oxidative DNA Cleavage by the Antitumor Antibiotic Leinamycin and Simple 1,2-Dithiolan-3-one 1-Oxides:  Evidence for Thiol-Dependent Conversion of Molecular Oxygen to DNA-Cleaving Oxygen Radicals Mediated by Polysulfides Kaushik Mitra, Woongki Kim, J. Scott Daniels, and Kent S. Gates pp 11691–11692 DOI: 10.1021/ja971359z Supporting Info

Mixed Aggregates Containing n-Butyl-, sec-Butyl-, or tert-Butyllithium and a Chiral Lithium Amide Derived from N-Isopropyl-O-methyl Valinol Paul G. Williard and Chengzao Sun pp 11693–11694 DOI: 10.1021/ja972277d Supporting Info

Discrete High Molecular Weight Triarylamine Dendrimers Prepared by Palladium-Catalyzed Amination Janis Louie and John F. HartwigAlbert J. Fry pp 11695–11696 DOI: 10.1021/ja972806d Supporting Info

[FHNO]-:  An Intermediate in a Spin-Forbidden Proton Transfer Reaction Gordon A. Janaway, Meili Zhong, Geo G. Gatev, Michael L. Chabinyc, and John I. Brauman pp 11697–11698 DOI: 10.1021/ja9726872

New Approach to Carbene Chemistry via Distonic Carbene Ions. A Case of Spin-Forbidden Proton Transfer and Carbene−Biradical Tautomerism Jun Hu, Brian T. Hill, and Robert R. Squires pp 11699–11700 DOI: 10.1021/ja9727070

Ring Inversion Dynamics of Encapsulated Cyclohexane Brendan M. O'Leary, Robert M. Grotzfeld, and Julius Rebek, Jr. pp 11701–11702 DOI: 10.1021/ja9714898 Supporting Info

Time-Resolved Surface X-ray Scattering Study of Surface Ordering of Electrodeposited Layers Adam C. Finnefrock, Lisa J. Buller, Kristin L. Ringland, Joel D. Brock, and Héctor D. Abruña pp 11703–11704 DOI: 10.1021/ja971457k Supporting Info

Synthesis and Characterization of [Sn2{C6H3-2,6(2,4,6-i-Pr3C6H2)2}2]-•:  A Singly Reduced Valence Isomer of a “Distannyne” Marilyn M. Olmstead, Richard S. Simons, and Philip P. Power pp 11705–11706 DOI: 10.1021/ja9727575 Supporting Info

C2-Symmetric Lewis Antigen Mimetics Exhibiting the Common Structural Motif Armin Geyer, Stefan Reinhardt, G. Bendas, U. Rothe, and Richard R. Schmidt pp 11707–11708 DOI: 10.1021/ja972764t

First Observation of Platinum-195 Nuclear Magnetic Resonance in Commercial Graphite-Supported Platinum Electrodes in an Electrochemical Environment YuYe Tong, Cynthia Belrose, Andrzej Wieckowski, and Eric Oldfield pp 11709–11710 DOI: 10.1021/ja970866d

Surface-Enhanced NMR Using Continuous-Flow Laser-Polarized Xenon Mathias Haake, Alexander Pines, Jeffrey A. Reimer, and Roberto Seydoux pp 11711–11712 DOI: 10.1021/ja9713587

Construction of Chiral Quaternary Carbon Centers by Catalytic Enantioselective Radical-Mediated Allylation of α-Iodolactones Using Allyltributyltin in the Presence of a Chiral Lewis Acid Masatoshi Murakata, Toshiaki Jono, Yusuke Mizuno, and Osamu Hoshino pp 11713–11714 DOI: 10.1021/ja972065g Supporting Info

IR Spectrum of the Other Rotamer of Formic Acid, cis-HCOOH Mika Pettersson, Jan Lundell, Leonid Khriachtchev, and Markku Räsänen pp 11715–11716 DOI: 10.1021/ja972362l

Phytochrome Photochromism Probed by Site-Directed Mutations and Chromophore Esterification Seong Hee Bhoo, Takashi Hirano, Ho-Young Jeong, Jung-Goo Lee, Masaki Furuya, and Pill-Soon Song pp 11717–11718 DOI: 10.1021/ja972875s Supporting Info

Antiparallel Sheet Formation in β-Peptide Foldamers:  Effects of β-Amino Acid Substitution on Conformational Preference1 Susanne Krauthäuser, Laurie A. Christianson, Douglas R. Powell, and Samuel H. Gellman pp 11719–11720 DOI: 10.1021/ja9730627 Supporting Info

Macrocyclic Synthesis:  A Practical Approach Edited by David Parker (University of Durham). Oxford University Press:  New York, 1966. xii + 252 pp. $90.00. ISBN 0-19-855841-4. Valeria Balogh-Nair p 11721 DOI: 10.1021/ja965735b

CVD of Nonmetals Edited by William S. Rees, Jr. (Georgia Institute of Technology). VCH:  Weinheim, 1996. xvi + 424 pp. DM238.00. ISBN 3-527-29295-0. J. M. White p 11721 DOI: 10.1021/ja975549l

Macromolecular Reactions:  Peculiarities, Theory, and Experimental Approaches By Nicolai A. Plate, Arkady D. Litmanovich (Russian Academy of Sciences), and Olga V. Noah (Moscow State University). Wiley:  New York, 1995. xi + 438 pp. $148.00. ISBN 0-471-94392-4. Gustavo A. Arteca pp 11721–11722 DOI: 10.1021/ja955303l

Second Supplements to the 2nd Edition of Rodd's Chemistry of Carbon Compounds. Volume III:  Aromatic Compounds Edited by M. Sainsbury (The University of Bath). Elsevier:  Amsterdam, 1996. xx + 524 pp. $350.00. ISBN 0-444-82552-5. Philip D. Magnus p 11722 DOI: 10.1021/ja9755572

Fundamentals of Inorganic Membrane Science and Technology, Membrane Science and Technology Series, 4 Edited by A. J. Burggraaf (University of Twente) and L. Cot (Ecole Nat. Super. de Chimie). Elsevier:  Amsterdam, 1996. xvii + 690 pp. $390.75. ISBN 0-444-81877-4. J. Douglas Way pp 11722–11723 DOI: 10.1021/ja975556+

Handbook of Capillary Electrophoresis, Second Edition Edited by James P. Landers (Mayo Clinic Foundation). CRC Press, Inc.:  Boca Raton, FL, 1997. 894 pp. $135.00. ISBN 0-8493-2498-X. Apryll M. Stalcup p 11723 DOI: 10.1021/ja975527z

Phytochemistry of Fruit and Vegetables Edited by F. A. Tomás-Barberán and R. J. Robins. Oxford University Press:  New York, 1997. xii + 375 pp. $140.00. ISBN 0-19-857790-7. Philip W. Le Quesne p 11723 DOI: 10.1021/ja975568v

Recent Advances and New Horizons in Zeolite Science and Technology. Studies in Surface Science and Catalysis, #102 Edited by H. Chon, S. I. Woo, and S.-E. Park. Elsevier:  Amsterdam, 1996. xv + 468 pp. $265.75. ISBN 0 444-82499-5. Raymond J. Gorte pp 11723–11724 DOI: 10.1021/ja9657667

Data Analysis for Chemists:  Applications for QSAR and Chemical Product Design By David Livingstone (University of Portsmouth). Oxford University Press:  New York, 1996. xvi + 239 pp. $70.00. ISBN 0-19-855728-0. William Seitz p 11724 DOI: 10.1021/ja9656762

The Chemistry of Mind-Altering Drugs:  History, Pharmacology, and Cultural Context By Daniel M. Perrine (Loyola College). American Chemical Society:  Washington, DC, 1996. x + 480 pp. $39.95. ISBN 0-8412-3253-9. Glen D. Lawrence p 11724 DOI: 10.1021/ja975550k

Issue 49

Theoretical Model for Pyruvoyl-Dependent Enzymatic Decarboxylation of α-Amino Acids Robert D. Bach and Carlo Canepa pp 11725–11733 DOI: 10.1021/ja963686x

Enzymatic Synthesis of β-Hydroxy-α-amino Acids Based on Recombinant d- and l-Threonine Aldolases Teiji Kimura, Vassil P. Vassilev, Gwo-Jenn Shen, and Chi-Huey Wong pp 11734–11742 DOI: 10.1021/ja9720422

A New Method for the Synthesis of Fluoro-Carbohydrates and Glycosides Using Selectfluor Michael D. Burkart, Zhiyuan Zhang, Shang-Cheng Hung, and Chi-Huey Wong pp 11743–11746 DOI: 10.1021/ja9723904

Application of a Nitrospiropyran-FAD-Reconstituted Glucose Oxidase and Charged Electron Mediators as Optobioelectronic Assemblies for the Amperometric Transduction of Recorded Optical Signals:  Control of the “On”−“Off” Direction of the Photoswitch Ron Blonder, Eugenii Katz, Itamar Willner, Victor Wray, and Andreas F. Bückmann pp 11747–11757 DOI: 10.1021/ja972663v

Preparation of Short Oligonucleotides via the Phosphoramidite Method Using a Tetrazole Promoter in a Catalytic Manner Yoshihiro Hayakawa and Masanori Kataoka pp 11758–11762 DOI: 10.1021/ja970685b Supporting Info

Photoaddition of Ru(tap)2(bpy)2+ to DNA:  A New Mode of Covalent Attachment of Metal Complexes to Duplex DNA Luc Jacquet, R. Jeremy H. Davies, Andrée Kirsch-De Mesmaeker, and John M. Kelly pp 11763–11768 DOI: 10.1021/ja971163z Supporting Info

An Enantioselective Synthetic Route to Atractyligenin Using the Oxazaborolidine-Catalyzed Reduction of β-Silyl- or β-Stannyl-Substituted α,β-Enones as a Key Step E. J. Corey, Angel Guzman-Perez, and Scott E. Lazerwith pp 11769–11776 DOI: 10.1021/ja973034o

Total Synthesis of the Anti Methicillin-Resistant Staphylococcus aureus Peptide Antibiotics TAN-1057A-D Chenguang Yuan and Robert M. Williams pp 11777–11784 DOI: 10.1021/ja972670j Supporting Info

Photochemical Mechanisms Responsible for the Versatile Application of Naphthalimides and Naphthaldiimides in Biological Systems Béatrice M. Aveline, Seiichi Matsugo, and Robert W. Redmond pp 11785–11795 DOI: 10.1021/ja971993c

Chiral Recognition Properties in Complexation of Two Asymmetric Hemicarcerands1 Juyoung Yoon and Donald J. Cram pp 11796–11806 DOI: 10.1021/ja972719l

Hydrogen-Bonded Tapes Based on Symmetrically Substituted Diketopiperazines:  A Robust Structural Motif for the Engineering of Molecular Solids Serge Palacin, Donovan N. Chin, Eric E. Simanek, John C. MacDonald, George M. Whitesides, Mary T. McBride, and G. Tayhas R. Palmore pp 11807–11816 DOI: 10.1021/ja962905b Supporting Info

Electron Withdrawing Substituents on Equatorial and Apical Phosphines Have Opposite Effects on the Regioselectivity of Rhodium Catalyzed Hydroformylation Charles P. Casey, Evelyn Lin Paulsen, Eckart W. Beuttenmueller, Bernd R. Proft, Lori M. Petrovich, Brock A. Matter, and Douglas R. Powell pp 11817–11825 DOI: 10.1021/ja9719440 Supporting Info

Strength of Solid Acids and Acids in Solution. Enhancement of Acidity of Centers on Solid Surfaces by Anion Stabilizing Solvents and Its Consequence for Catalysis Dan Frcaşiu, Anca Ghenciu, Gaye Marino, and Kenneth D. Rose pp 11826–11831 DOI: 10.1021/ja9716158

Circular Dichroism and Magnetic Circular Dichroism Studies of the Mixed-Valence Binuclear Non-Heme Iron Active Site in Uteroferrin and Its Anion Complexes Yi-Shan Yang, James M. McCormick, and Edward I. Solomon pp 11832–11842 DOI: 10.1021/ja971896j

The Synthesis, Properties, and Reactivities of Free-Base- and Zn(II)-N-Methyl Hydroporphyrin Compounds. The Unexpected Selectivity of the Direct Methylation of Free-Base Hydroporphyrin Compounds Alan M. Stolzenberg, Scott W. Simerly, Bryan D. Steffey, and G. Scott Haymond pp 11843–11854 DOI: 10.1021/ja972210q

Effect of Polydentate Donor Molecules on Lithium Hexamethyldisilazide Aggregation:  An X-ray Crystallographic and a Combination Semiempirical PM3/Single Point ab Initio Theoretical Study Kenneth W. Henderson, Andrea E. Dorigo, Qi-Yong Liu, and Paul G. Williard pp 11855–11863 DOI: 10.1021/ja971920t Supporting Info

Anion Selective Recognition and Sensing by Novel Macrocyclic Transition Metal Receptor Systems. 1H NMR, Electrochemical, and Photophysical Investigations Paul D. Beer, Fridrich Szemes, Vincenzo Balzani, Claudio M. Salà, Michael G. B. Drew, Simon W. Dent, and Mauro Maestri pp 11864–11875 DOI: 10.1021/ja9725099 Supporting Info

Synthesis and Decomposition of Alkyl Complexes of Molybdenum(IV) That Contain a [(Me3SiNCH2CH2)3N]3- Ligand. Direct Detection of α-Elimination Processes That Are More than Six Orders of Magnitude Faster than β-Elimination Processes Richard R. Schrock, Scott W. Seidel, Nadia C. Mösch-Zanetti, Keng-Yu Shih, Myra B. O'Donoghue, William M. Davis, and William M. Reiff pp 11876–11893 DOI: 10.1021/ja970697x Supporting Info

The Cyanurate Ribbon in Structural Coordination Chemistry:  An Aggregate Structure That Persists across Different Coordination Environments and Structural Types Larry R. Falvello, Isabel Pascual, Milagros Tomás, and Esteban P. Urriolabeitia pp 11894–11902 DOI: 10.1021/ja970297+ Supporting Info

Transition Metal (II)/(III), Eu(III), and Tb(III) Ions Induced Molecular Photonic OR Gates Using Trianthryl Cryptands of Varying Cavity Dimension Pradyut Ghosh, Parimal K. Bharadwaj, Jayanta Roy, and Sanjib Ghosh pp 11903–11909 DOI: 10.1021/ja9713441 Supporting Info

Through-Bond and Chain-to-Chain Coupling. Two Pathways in Electron Tunneling through Liquid Alkanethiol Monolayers on Mercury Electrodes Krzysztof Slowinski, Richard V. Chamberlain, Cary J. Miller, and Marcin Majda pp 11910–11919 DOI: 10.1021/ja971921l

Free Energy Control of Reaction Pathways in Electrogenerated Chemiluminescence Ernest L. Ritchie, Paolo Pastore, and R. Mark Wightman pp 11920–11925 DOI: 10.1021/ja971537o

Structure and Photoelectron Spectrum of Tetramethyldiarsane Bálint Sztáray and Péter G. Szalay pp 11926–11932 DOI: 10.1021/ja964339q

Classical and Nonclassical Isomers of Tropylium, Silatropylium, and Germatropylium Cations. Descending the Periodic Table Increases the Preference for Nonclassical Structures Athanassios Nicolaides and Leo Radom pp 11933–11937 DOI: 10.1021/ja9703281 Supporting Info

A Multidimensional NMR Experiment for Measurement of the Protein Dihedral Angle ψ Based on Cross-Correlated Relaxation between 1Hα−13Cα Dipolar and 13C‘ (Carbonyl) Chemical Shift Anisotropy Mechanisms Daiwen Yang, Robert Konrat, and Lewis E. Kay pp 11938–11940 DOI: 10.1021/ja972329z Supporting Info

Predicting Chemical Shifts in Proteins:  Structure Refinement of Valine Residues by Using ab Initio and Empirical Geometry Optimizations John G. Pearson, Hongbiao Le, Lori K. Sanders, Nathalie Godbout, Robert H. Havlin, and Eric Oldfield pp 11941–11950 DOI: 10.1021/ja971461w Supporting Info

An ab Initio Quantum Chemical Investigation of Carbon-13 NMR Shielding Tensors in Glycine, Alanine, Valine, Isoleucine, Serine, and Threonine:  Comparisons between Helical and Sheet Tensors, and the Effects of χ1 on Shielding Robert H. Havlin, Hongbiao Le, David D. Laws, Angel C. deDios, and Eric Oldfield pp 11951–11958 DOI: 10.1021/ja971796d

Microcalorimetric and Small-Angle Light Scattering Studies on Nucleating Lysozyme Solutions Yannis Georgalis, Patrick Umbach, Anna Zielenkiewicz, Ewa Utzig, Wojciech Zielenkiewicz, Piotr Zielenkiewicz, and Wolfram Saenger pp 11959–11965 DOI: 10.1021/ja964349r

Ring Opening of Silacyclobutane Mark S. Gordon, Thomas J. Barton, and Haruyuki Nakano pp 11966–11973 DOI: 10.1021/ja9715354

Edge-Bridged Tetrahedral Geometry of Five-Coordinate d0 Complexes, Relatives of the Bent [MCp2L3] Family:  A Theoretical and Structure-Correlation Study Thomas R. Ward, Hans-Beat Bürgi, François Gilardoni, and Jacques Weber pp 11974–11985 DOI: 10.1021/ja972230s

Remarkable γ-Effect of Tin:  Acid-Promoted Cyclopropanation Reactions of α-((Alkoxycarbonyl)oxy)stannanes with Alkenes Masanobu Sugawara and Jun-ichi Yoshida pp 11986–11987 DOI: 10.1021/ja973092+ Supporting Info

Is Arginine a Zwitterion in the Gas Phase? William D. Price, Rebecca A. Jockusch, and Evan R. Williams pp 11988–11989 DOI: 10.1021/ja9711627

Ligand-Induced β-H Transfer in W(VI) Dialkyl Complexes Shu-Yu S. Wang, Khalil A. Abboud, and James M. Boncella pp 11990–11991 DOI: 10.1021/ja971218x Supporting Info

Neutron Diffraction Analysis of H2Os6(CO)18 Robert Bau, Sax A. Mason, Li Li, and Wing-Tak Wong pp 11992–11993 DOI: 10.1021/ja971632x Supporting Info

Do Localized Structures of [14]- and [18]Annulenes Exist? Cheol Ho Choi and Miklos KerteszAlfred Karpfen pp 11994–11995 DOI: 10.1021/ja971035a

Irreversible Reduction of Dioxygen by Simple Peralkylated Diamine−Copper(I) Complexes:  Characterization and Thermal Stability of a [Cu2(μ-O)2]2+ Core Viswanath Mahadevan, Zhiguo Hou, Adam P. Cole, David E. Root, Tapan K. Lal, Edward I. Solomon, and T. D. P. Stack pp 11996–11997 DOI: 10.1021/ja972946n Supporting Info

Decomposition of tert-Butyllithium/Lithium tert-Butoxide Mixed Aggregates:  NMR Evidence for the Formation of Novel Mixed Lithium Hydride/Lithium tert-Butoxide Aggregates George T. DeLong, Daniele Hoffmann, Hanh D. Nguyen, and Ruthanne D. Thomas pp 11998–11999 DOI: 10.1021/ja9720624

Deuterium−Carbon NMR Correlation Spectroscopy in Oriented Materials Céline Auger, Anne Lesage, Stefano Caldarelli, Paul Hodgkinson, and Lyndon Emsley pp 12000–12001 DOI: 10.1021/ja972536z

Molecular Identification of Surface Adsorbates. Reactive Scattering of Hyperthermal Cs+ from a Ni(100) Surface Adsorbed with CO, C6H6, and H2O H. Kang, K. D. Kim, and K. Y. Kim pp 12002–12003 DOI: 10.1021/ja970246c

Long-Lived Charge-Separated States Following Light Excitation of Cu(I) Donor−Acceptor Compounds Mark Ruthkosky, Craig A. Kelly, Mark C. Zaros, and Gerald J. Meyer pp 12004–12005 DOI: 10.1021/ja9727068 Supporting Info

Direct Determination of a Peptide Torsional Angle ψ by Double-Quantum Solid-State NMR X. Feng, M. Edén, A. Brinkmann, H. Luthman, L. Eriksson, A. Gräslund, O. N. Antzutkin, and M. H. Levitt pp 12006–12007 DOI: 10.1021/ja972252e

Pronounced Axial Thiolate Ligand Effect on the Reactivity of High-Valent Oxo−Iron Porphyrin Intermediate Yasuteru Urano, Tsunehiko Higuchi, Masaaki Hirobe, and Tetsuo Nagano pp 12008–12009 DOI: 10.1021/ja972892h

Ion-Surface Reactions Involving Isotopically Labeled Langmuir-Blodgett Films Chungang Gu and Vicki H. Wysocki pp 12010–12011 DOI: 10.1021/ja972821i

Synthetic Study of Kedarcidin Chromophore:  Revised Structure Shinji Kawata, Shukuko Ashizawa, and Masahiro Hirama pp 12012–12013 DOI: 10.1021/ja973231n Supporting Info

Tandem Oxidative Cyclization with Rhenium Oxide. Total Synthesis of 17,18-bisepi-Goniocin Subhash C. Sinha, Anjana Sinha, Santosh C. Sinha, and Ehud Keinan pp 12014–12015 DOI: 10.1021/ja964273z Supporting Info

Highly Enantioselective Asymmetrization of meso-1,2-Diols through a Novel and Efficient Reaction Cycle Hiromichi Fujioka, Yasushi Nagatomi, Hidetoshi Kitagawa, and Yasuyuki Kita pp 12016–12017 DOI: 10.1021/ja971881l Supporting Info

Coordination Structure of Zinc(II) Ions on a Langmuir Monolayer, Observed by Total-Reflection X-ray Absorption Fine Structure Iwao Watanabe, Hajime Tanida, and Sigehiro Kawauchi pp 12018–12019 DOI: 10.1021/ja971458c

Synthesis and Characterization of the New Fluoropolymer Poly(difluorosilylenemethylene); An Analogue of Poly(vinylidene fluoride) M. Lienhard, I. Rushkin, G. Verdecia, C. Wiegand, T. Apple, and L. V. Interrante pp 12020–12021 DOI: 10.1021/ja972055f Supporting Info

Asymmetric Crotylation Reactions on Solid Support:  Synthesis of Stereochemically Well-Defined Polypropionate-Like Subunits James S. Panek and Bin Zhu pp 12022–12023 DOI: 10.1021/ja972877c Supporting Info

Sensitivity Enhancement of Exciton Coupling by Fluorescence Detected Circular Dichroism (FDCD) Jian-Guo Dong, Akio Wada, Takashi Takakuwa, Koji Nakanishi, and Nina Berova pp 12024–12025 DOI: 10.1021/ja9721172 Supporting Info

Aqueous Biphasic Separations:  Biomolecules to Metal Ions Edited by Robin D. Rogers (Northern Illinois University) and Mark A. Eiteman (University of Georgia). Plenum:  New York. 1995. viii + 191 pp. $79.50. ISBN 0-306-45019-4. Henry Freiser p 12026 DOI: 10.1021/ja965562q

Bridging versus Hydride Shift in Gaseous Cations:  Hydroxy as a Vicinal Substituent J. Am. Chem. Soc. 1997, 119, 8342−8349 Viet Nguyen, Jacqueline S. Bennett, and Thomas Hellman Morton p 12026 DOI: 10.1021/ja9754259

Stable Carbocation Chemistry Edited by G. K. Surya Prakash (University of Southern California) and Paul v. R. Schleyer (University of Erlangen Nürnberg, Germany). Wiley:  New York, 1996. xvi + 587 pp. $79.95. ISBN 0-471-59462-8. Herbert Mayr pp 12026–12027 DOI: 10.1021/ja965784o

Advanced Catalysts and Nanostructured Materials:  Modern Synthetic Methods Edited by William R. Moser (Worcester Polytechnic Institute). Academic Press:  San Diego, CA, 1996. xxvi + 592 pp. $85.00. ISBN 0-12-508460-9. Boris Levy p 12027 DOI: 10.1021/ja9657925

Advances in Quantitative Structure-Property Relationships, Volume 1 Edited by Marvin Charton (Pratt Institute). JAI Press:  Greenwich, CT, 1996. xi + 229 pp. $109.50. ISBN 1-55938-549-9. Eric J. Lien pp 12027–12028 DOI: 10.1021/ja975581f

Synthetic Methods of Organometallic and Inorganic Chemistry, Volume 2. Edited by W. A. Hermann (Tech. Univ. Munchen), Norbert Auner (Humboldt-Univ. Berlin), and Uwe Klingebiel (Univ. Gottingen). G. Thieme:  Stuttgart, Germany, 1996. x + 310 pp. DM185.00. ISBN 3-13-103031-3. Lawrence Barton p 12028 DOI: 10.1021/ja965722y

Solid−Liquid Electrochemical Interfaces Edited by Gregory Jerkiewicz (Universite de Sherbrooke), Manuel P. Soriaga (Texas A&M University), Kohei Uosaki (Hokkaido University), and Andrzej Wieckowski (University of Illinois at Urbana-Champaign). American Chemical Society:  Washington, DC, 1996. xii + 354 pp. $110.95. ISBN 0-84123480-9. p 12028 DOI: 10.1021/ja975609n

Techniques in Protein Chemistry VIII Edited by Daniel R. Marshak (Osiris Therapeutics, Inc.). Academic Press:  San Diego, CA, 1997. xxi + 908 pp. ISBN 0-12-473557-6. p 12028 DOI: 10.1021/ja975629p

Preparative Carbohydrate Chemistry Edited by Stephen Hanessian (University of Montreal). Marcel Dekker:  New York. 1997. xiii + 648 pp. ISBN 0-8247-9802-3. David C. Baker pp 12028–12029 DOI: 10.1021/ja9755166

Static Headspace-Gas Chromatography Theory and Practice By Bruno Kolb (Bodenseewerk Perkin-Elmer GmbH) and Leslie S. Ettre (Yale University). Wiley−VCH:  New York. 1997. xx + 298 pp. $79.95. ISBN 0-471-19238-4. Richard D. Foust, Jr. p 12029 DOI: 10.1021/ja975575j

Dielectric Spectroscopy of Polymeric Materials:  Fundamentals and Applications Edited by James P. Runt (Pennsylvania State University) and John J. Fitzgerald (General Electric Company). American Chemical Society:  Washington, DC, 1997. xvi + 461 pp. $124.95. ISBN 08412-3335-7. p 12029 DOI: 10.1021/ja975608v

Biological Macromolecular Dynamics Edited by Stephen Cusack (European Molecular Biology Laboratory), Herma Buttner, Michel Ferrand, Paul Langan, and Peter Timmins (Institut Laue-Langevin). Adenine Press:  Schenectady, 1997. ix + 474 pp. $125.00. ISBN 0-940030-49-7. p 12029 DOI: 10.1021/ja975624s

Phase-Transfer Catalysis Mechanisms and Syntheses Edited by Marc E. Halpern (PTC Technology). American Chemical Society:  Washington, DC, 1997. xii + 314 pp. $99.95. ISBN 0-8412-3491-4. pp 12029–12030 DOI: 10.1021/ja9756073

Dictionary of Plant Toxins Edited by Jeffrey Harborne (University of Reading, U.K.) and Herbert Baxter (Consultant, Ilford, Essex, U.K.). Associate Editor Gerard P. Moss (Queen Mary and Westfield College, London). Wiley:  New York, 1996. xv + 523 pp. $195.00. ISBN 0-471-95107-2. p 12030 DOI: 10.1021/ja975528r

Liquid-Crystalline Polymer Systems:  Technological Advances Edited by Avraam I. Isayev, Thien Kyu, and Stephen Z. D. Cheng (University of Akron). American Chemical Society:  Washington, DC, 1996. xii + 418 pp. $129.95. ISBN 0-8412-3408-6. p 12030 DOI: 10.1021/ja975599q

Compilation of Reported 77Se NMR Chemical Shifts By Thomas M. Klapotke (University of Glasgow) and Matthias Broschag (Technische Universitat Berlin). Wiley/VCH:  New York, 1996. x + 134 pp. $74.95. ISBN 0-471-96722-X. p 12030 DOI: 10.1021/ja975600l

Physics and Chemistry of Low-Dimensional Inorganic Conductors Edited by Claire Schlenker (CNRS), Jean Dumas (CNRS), Martha Greenblatt (Rutgers, The State University of New Jersey), and Sander van Smaalen (University of Bayreuth). Plenum Press:  New York, 1996. xi + 481 pp. $125.00. ISBN 0306-45304-5. p 12030 DOI: 10.1021/ja975601d

Immunochemical Technology for Environmental Applications Edited by Diana S. Aga and E. M. Thurman (U.S. Geological Survey). American Chemical Society:  Washington, DC, 1997. xii + 396 pp. $119.95. ISBN 0-8412-3487-6. p 12030 DOI: 10.1021/ja975604q

Phytochemicals for Pest Control Edited by Paul A. Hedin (U.S. Department of Agriculture), Robert M. Hollingworth (Michigan State University), Edward P. Master (U.S. Department of Agriculture), Junshi Miyamoto (Sumitomo Chemical Co., Ltd.), and Dean G. Thompson (Canadian Forest Service). American Chemical Society:  Washington, DC, 1997. x + 372 pp. $109.95. ISBN 0-84123488-4. p 12030 DOI: 10.1021/ja975605i

Issue 50

Total Synthesis of (±)-Scopadulcic Acid B Larry E. Overman, Daniel J. Ricca, and Vinh D. Tran pp 12031–12040 DOI: 10.1021/ja972427k

The Roles of Dimerization and Membrane Anchoring in Activity of Glycopeptide Antibiotics against Vancomycin-Resistant Bacteria Gary J. Sharman, Andrew C. Try, Robert J. Dancer, Younghoon R. Cho, Thomas Staroske, Ben Bardsley, Alison J. Maguire, Matthew A. Cooper, Dominic P. O'Brien, and Dudley H. Williams pp 12041–12047 DOI: 10.1021/ja964477f Supporting Info

Stereochemical Analysis of Higher α,α-Dialkylglycine Containing Peptides. Characterization of Local Helical Conformations at Dipropylglycine Residues and Observation of a Novel Hydrated Multiple β-Turn Structure in Crystals of a Glycine Rich Peptide Isabella L. Karle, Ramesh Kaul, R. Balaji Rao, S. Raghothama, and P. Balaram pp 12048–12054 DOI: 10.1021/ja970596z Supporting Info

Neutron Diffraction Structure of (2R,3R)-l-(−)-[2-D]Carnitine Tetrachloroaurate, [(CH3)3N-CH2-CHOH-CHD-COOH]+[AuCl4]-:  Determination of the Absolute Stereochemistry of the Crotonobetaine-to-Carnitine Transformation Catalyzed by l-Carnitine Dehydratase from Escherichia coli Robert Bau, André Schreiber, Tobias Metzenthin, Roy S. Lu, Frank Lutz, Wim T. Klooster, Thomas F. Koetzle, Hermann Seim, Hans-Peter Kleber, Fred Brewer, and Sasha Englard pp 12055–12060 DOI: 10.1021/ja972105g Supporting Info

Intermolecular β-Sheet Stabilization with Aminopyrazoles Christian N. Kirsten and Thomas H. Schrader pp 12061–12068 DOI: 10.1021/ja972158y

Transition State Structure of the Solvolytic Hydrolysis of NAD+  Paul J. Berti and Vern L. Schramm pp 12069–12078 DOI: 10.1021/ja971316i Supporting Info

Transition State Structure for the Hydrolysis of NAD+ Catalyzed by Diphtheria Toxin Paul J. Berti, Steven R. Blanke, and Vern L. Schramm pp 12079–12088 DOI: 10.1021/ja971317a Supporting Info

Biomimetically Activated Amino Acids. Catalysis in the Hydrolysis of Alanyl Ethyl Phosphate Ronald Kluger, Richard W. Loo, and Vince Mazza pp 12089–12094 DOI: 10.1021/ja972406q

Long-Range Effects in Liganded Hemoglobin Investigated by Neutron and UV Raman Scattering, FTIR, and CD Spectroscopies Olivier Sire, Christian Zentz, Serge Pin, Laurent Chinsky, Pierre-Yves Turpin, Pierre Martel, Patrick T. T. Wong, and Bernard Alpert pp 12095–12099 DOI: 10.1021/ja9703786

Preparation of Specifically Deuterated and 13C-Labeled RNA for NMR Studies Using Enzymatic Synthesis Thomas J. Tolbert and James R. Williamson pp 12100–12108 DOI: 10.1021/ja9725054

Effect of Chiral Polymers on Lyotropic Liquid Crystals Y. K. Yarovoy and M. M. Labes pp 12109–12113 DOI: 10.1021/ja971991s

Electrochemically and Photochemically Driven Ring Motions in a Disymmetrical Copper [2]-Catenate Aude Livoreil, Jean-Pierre Sauvage, Nicola Armaroli, Vincenzo Balzani, Lucia Flamigni, and Barbara Ventura pp 12114–12124 DOI: 10.1021/ja9720826

Generation of 1,2-Bisketenes from Cyclobutene-1,2-diones by Flash Photolysis and Ring Closure Kinetics1a Annette D. Allen, Jim D. Colomvakos, François Diederich, Ian Egle, Xiaokuai Hao, Ronghua Liu, Janusz Lusztyk, Jihai Ma, Michael A. McAllister, Yves Rubin, Kuangsen Sung, Thomas T. Tidwell, and Brian D. Wagner pp 12125–12130 DOI: 10.1021/ja9722685 Supporting Info

New Computational and Experimental Evidence for the Mechanism of the Sakurai Reaction Andrea Bottoni, Anna Luisa Costa, Donata Di Tommaso, Ivan Rossi, and Emilio Tagliavini pp 12131–12135 DOI: 10.1021/ja9723693

Benzo-Bridged Bis(1,2,3-dithiazoles) and Their Selenium Analogues. Preparation, Molecular and Electronic Structures, and Redox Chemistry T. M. Barclay, A. W. Cordes, J. D. Goddard, R. C. Mawhinney, R. T. Oakley, K. E. Preuss, and R. W. Reed pp 12136–12141 DOI: 10.1021/ja972927d Supporting Info

Rigid Rod-Shaped Polyols:  Functional Nonpeptide Models for Transmembrane Proton Channels Linnea A. Weiss, Naomi Sakai, Bereket Ghebremariam, Chiyou Ni, and Stefan Matile pp 12142–12149 DOI: 10.1021/ja973126d

Stereospecific Formation of Optically Active 5-Alkyl-4-methyl-3-[(trialkylsilyl)oxy]-2-([(trialkylsilyl)oxy]- methyl)tetrahydrofurans via Diastereoselective Epoxidation and Rearrangement of 5-[(Trialkylsilyl)oxy]-2-alken-1-ols1 Michael E. Jung and Derin C. D'Amico pp 12150–12158 DOI: 10.1021/ja972507o Supporting Info

Total Synthesis of Stipiamide and Designed Polyenes as New Agents for the Reversal of Multidrug Resistance Merritt B. Andrus, Salvatore D. Lepore, and Timothy M. Turner pp 12159–12169 DOI: 10.1021/ja972603p Supporting Info

Resonance Raman Spectra of Ferrochelatase Reveal Porphyrin Distortion upon Metal Binding Milton E. Blackwood, Jr., Thomas S. Rush, III, Amy Medlock, Harry A. Dailey, and Thomas G. Spiro pp 12170–12174 DOI: 10.1021/ja971619c

Characterization and Reactions of [PPh4]3[Zr6Cl18H5] and Its Deprotonation Products Linfeng Chen, F. Albert Cotton, Wim T. Klooster, and Thomas F. Koetzle pp 12175–12183 DOI: 10.1021/ja972835o Supporting Info

A “Mix and Match” Ionic−Covalent Strategy for Self-Assembly of Inorganic Multilayer Films Mingming Fang, David M. Kaschak, Anthony C. Sutorik, and Thomas E. Mallouk pp 12184–12191 DOI: 10.1021/ja972569e

Extended X-ray Absorption Fine Structure Analysis of Coenzyme B12 Bound to Methylmalonyl-Coenzyme A Mutase Using Global Mapping Techniques Eva Scheuring, Rugmini Padmakumar, Ruma Banerjee, and Mark R. Chance pp 12192–12200 DOI: 10.1021/ja9635239

Electron Spin Echo Envelope Modulation and Extended X-ray Absorption Fine Structure Studies of Active Site Models of Oxygenated Cobalt-Substituted Hemoproteins:  Correlating Electron-Nuclear Couplings and Metal−Ligand Bond Lengths H. Caroline Lee, Eva Scheuring, Jack Peisach, and Mark R. Chance pp 12201–12209 DOI: 10.1021/ja9717166

19F/29Si Distance Determinations in Fluoride-Containing Octadecasil from Solid-State NMR Measurements Colin A. Fyfe, Andrew R. Lewis, Jean Michel Chézeau, and Hiltrud Grondey pp 12210–12222 DOI: 10.1021/ja9701873

Combined X-ray Diffraction and 15N CPMAS NMR Study of Molecular Structure and Proton Order/Disorder Phenomena in Cyclic N,N‘-Bisarylformamidine Dimers Romana Anulewicz, Iwona Wawer, Tadeusz Marek Krygowski, Ferdinand Männle, and Hans-Heinrich Limbach pp 12223–12230 DOI: 10.1021/ja970699h Supporting Info

A Solid Acid Catalyst at the Threshold of Superacid Strength:  NMR, Calorimetry, and Density Functional Theory Studies of Silica-Supported Aluminum Chloride Teng Xu, Nick Kob, Russell S. Drago, John B. Nicholas, and James F. Haw pp 12231–12239 DOI: 10.1021/ja970850n Supporting Info

Assignment of Electronic Transition Moment Directions of Adenine from Linear Dichroism Measurements Anders Holmén, Anders Broo, Bo Albinsson, and Bengt Nordén pp 12240–12250 DOI: 10.1021/ja9710262

B-DNA's Conformational Substates Revealed by Fourier Transform Infrared Difference Spectroscopy Simon Rüdisser, Andreas Hallbrucker, and Erwin Mayer pp 12251–12256 DOI: 10.1021/ja971462o

One-Dimensional Relaxation- and Diffusion-Edited NMR Methods for Screening Compounds That Bind to Macromolecules Philip J. Hajduk, Edward T. Olejniczak, and Stephen W. Fesik pp 12257–12261 DOI: 10.1021/ja9715962

Density Functional Calculations of Proton Chemical Shifts in Model Peptides Doree Sitkoff and David A. Case pp 12262–12273 DOI: 10.1021/ja9721430

An ab Initio MO Study on Fragmentation Reaction Mechanism of Thymine Dimer Radical Cation Misako Aida, Fukiko Inoue, Motohisa Kaneko, and Michel Dupuis pp 12274–12279 DOI: 10.1021/ja970184q Supporting Info

Proton and Li+ Cation Interactions with H2O3 and H2O/O2:  Ab Initio Molecular Orbital Study Toshihiro Fujii, Miyoko Yashiro, and Hiroaki Tokiwa pp 12280–12284 DOI: 10.1021/ja970784p Supporting Info

Catalytic Mechanism of the Enzyme Papain:  Predictions with a Hybrid Quantum Mechanical/Molecular Mechanical Potential Martin J. Harrison, Neil A. Burton, and Ian H. Hillier pp 12285–12291 DOI: 10.1021/ja9711472

Conformational Preferences of 2-Phenethylamines. A Computational Study of Substituent and Solvent Effects on the Intramolecular Amine−Aryl Interactions in Charged and Neutral 2-Phenethylamines Joseph J. Urban, Curtis W. Cronin, Ralph R. Roberts, and George R. Famini pp 12292–12299 DOI: 10.1021/ja971866g Supporting Info

A DFT Study of the Simmons−Smith Cyclopropanation Reaction Fernando Bernardi, Andrea Bottoni, and Gian Pietro Miscione pp 12300–12305 DOI: 10.1021/ja971995x

Effects of Fluorination on Methylene Insertion Reactions Igor S. Ignatyev and Henry F. Schaefer III pp 12306–12310 DOI: 10.1021/ja972126a Supporting Info

Dioxygen Cleavage and Methane Activation on Diiron Enzyme Models:  A Theoretical Study Kazunari Yoshizawa, Takehiro Ohta, Tokio Yamabe, and Roald Hoffmann pp 12311–12321 DOI: 10.1021/ja9726419

A High-Level ab Initio and Density Functional Investigation of Cyclopropenyl Anion and Its Mono-, Di-, and Trisubstituted Derivatives Grant N. Merrill and Steven R. Kass pp 12322–12337 DOI: 10.1021/ja9710565 Supporting Info

Singlet−Triplet Splittings and 1,2-Hydrogen Shift Barriers for Methylphenylborenide, Methylphenylcarbene, and Methylphenylnitrenium in the Gas Phase and Solution. What a Difference a Charge Makes Christopher J. Cramer, Donald G. Truhlar, and Daniel E. Falvey pp 12338–12342 DOI: 10.1021/ja9723390 Supporting Info

Sulfur Oxyacids and Radicals in the Gas Phase. A Variable-Time Neutralization−Photoexcitation−Reionization Mass Spectrometric and Ab Initio/RRKM Study Aaron J. Frank, Martin Sadílek, Jordan G. Ferrier, and František Tureek pp 12343–12353 DOI: 10.1021/ja972602x Supporting Info

Diluents That Promote Demixing in Fluid Phospholipid Bilayers Motonari Shibakami, Minoru Inagaki, and Steven L. Regen pp 12354–12357 DOI: 10.1021/ja973101e

Preparation and Molecular Structure of [(Cp2Zr)2B5H8][B11H14]:  A Dizirconaborane Containing a Cation Exhibiting a Novel Cluster Type Rhodri Ll. Thomas, Nigam P Rath, and Lawrence Barton pp 12358–12359 DOI: 10.1021/ja972638p Supporting Info

Total Synthesis of Filipin III Timothy I. Richardson and Scott D. Rychnovsky pp 12360–12361 DOI: 10.1021/ja971916h Supporting Info

Side Selection of the Fifth Coordinate with a Single Strapped Zinc(II) Porphyrin Host:  Full Characterization of Two Imidazole Complexes J. Froidevaux, P. Ochsenbein, M. Bonin, K. Schenk, P. Maltese, J.-P. Gisselbrecht, and J. Weiss pp 12362–12363 DOI: 10.1021/ja9723646 Supporting Info

Invention of the First Azo Compound To Serve as a Superoxide Thermal Source under Physiological Conditions:  Concept, Synthesis, and Chemical Properties1 K. U. Ingold, Thomas Paul, Mary Jane Young, and Leanne Doiron pp 12364–12365 DOI: 10.1021/ja972886l

Kinetic and Computational Studies of a Novel Pseudopericyclic Electrocyclization. The First Evidence for Torquoselectivity in a 6-π System Lian Luo, Michael D. Bartberger, and William R. Dolbier, Jr. pp 12366–12367 DOI: 10.1021/ja972701a

Structure of Solvent-Free, Monomeric CH3Li and CH3Na Douglas B. Grotjahn, T. C. Pesch, J. Xin, and L. M. Ziurys pp 12368–12369 DOI: 10.1021/ja972613q Supporting Info

The First Metal Cluster Containing a P2O Ligand:  (CO)13Ru4(μ6,η2-P2O)Ru4(CO)13 Weibin Wang, Gary D. Enright, and Arthur J. Carty pp 12370–12371 DOI: 10.1021/ja9729701 Supporting Info

First Observation of Zn−CN Bond in “Highly Coordinated” Mixed Organozincates by EXAFS Spectroscopy Masanobu Uchiyama, Yoshinori Kondo, Takashi Miura, and Takao Sakamoto pp 12372–12373 DOI: 10.1021/ja971502o Supporting Info

First Isolation and Molecular Structure of Bis(2,2‘-biphenylylene)sulfuranyl Bis(tetrafluoroborate) [8−S−4(C4)]2+ Soichi Sato, Hitomi Ameta, Ernst Horn, Ohgi Takahashi, and Naomichi Furukawa pp 12374–12375 DOI: 10.1021/ja971336k Supporting Info

Sulfonium Salts. Participants par Excellence in Metal-Catalyzed Carbon−Carbon Bond-Forming Reactions Jiri Srogl, Gary D. Allred, and Lanny S. Liebeskind pp 12376–12377 DOI: 10.1021/ja9726926 Supporting Info

Design of a Synthetic Receptor for the Calmodulin-Binding Domain of Calcineurin Angela Lombardi, James W. Bryson, Giovanna Ghirlanda, and William F. DeGrado pp 12378–12379 DOI: 10.1021/ja972973d Supporting Info

Highly Regioselective Hydrothiocarboxylation of Acetylenes with Carbon Monoxide and Thiols Catalyzed by Pt(PPh3)4 Akiya Ogawa, Jun-ichi Kawakami, Masatoshi Mihara, Takuma Ikeda, Noboru Sonoda, and Toshikazu Hirao pp 12380–12381 DOI: 10.1021/ja9726973 Supporting Info

Palladium-Catalyzed Direct α-Arylation of Ketones. Rate Acceleration by Sterically Hindered Chelating Ligands and Reductive Elimination from a Transition Metal Enolate Complex Blake C. Hamann and John F. Hartwig pp 12382–12383 DOI: 10.1021/ja9727880 Supporting Info

Convenient Preparation of Stable, Narrow-Dispersity, Gold Nanocrystals by Ligand Exchange Reactions Leif O. Brown and James E. Hutchison pp 12384–12385 DOI: 10.1021/ja972900u Supporting Info

Organic Solvent- and Halide-Free Oxidation of Alcohols with Aqueous Hydrogen Peroxide Kazuhiko Sato, Masao Aoki, Junko Takagi, and Ryoji Noyori pp 12386–12387 DOI: 10.1021/ja973412p Supporting Info

Novel 1,3-Diene Synthesis from Alkyne and Ethylene by Ruthenium-Catalyzed Enyne Metathesis Atsushi Kinoshita, Norikazu Sakakibara, and Miwako Mori pp 12388–12389 DOI: 10.1021/ja973134u Supporting Info

π-Allylic Rhodium Complex Catalyzed Living Copolymerization of Arylallenes with Carbon Monoxide To Give Structurally Regulated Polyketones Kohtaro Osakada, Jun-chul Choi, and Takakazu Yamamoto pp 12390–12391 DOI: 10.1021/ja971856f Supporting Info

Superconductor-to-Insulator Transition in an Organic Metal Incorporating Magnetic Anions:  λ-(BETS)2(FexGa1-x)Cl4 [BETS = bis(ethylenedithio)tetraselenafulvalene; x ≈ 0.55 and 0.43] Hayao Kobayashi, Akane Sato, Emiko Arai, and Hiroki AkutsuAkiko KobayashiPatrick Cassoux pp 12392–12393 DOI: 10.1021/ja973068w

Conformationally Constrained Peptide Mimetics:  The Use of a Small Lactam Ring as an HIV-1 Antigen Constraint Robert D. Long and Kevin D. Moeller pp 12394–12395 DOI: 10.1021/ja972758x Supporting Info

Control of Enzyme Activity in Organic Media by Solid-State Acid−Base Buffers Evagelos Zacharis, Barry D. Moore, and Peter J. Halling pp 12396–12397 DOI: 10.1021/ja972635c

A2Cu2CoO2S2 (A = Sr, Ba), A Novel Example of a Square-Planar CoO2 Layer W. J. Zhu and P. H. HorA. J. Jacobson, G. Crisci, T. A. Albright, and S.-H. WangT. Vogt pp 12398–12399 DOI: 10.1021/ja972542v Supporting Info

A Pyridine-Sensitive Venus Flytrap Porphyrin Marinella Mazzanti and Jean-Claude MarchonMaoyu Shang and W. Robert ScheidtSongling Jia and John A. Shelnutt pp 12400–12401 DOI: 10.1021/ja972947f Supporting Info

Identification of the Borirene Molecule, (CH)2BH:  Matrix Isolation FTIR and DFT Calculations for Five Vibrational Modes of Six Isotopic Molecules Dominick V. Lanzisera, Parviz Hassanzadeh, Yacine Hannachi, and Lester Andrews pp 12402–12403 DOI: 10.1021/ja973094u

An On/Off Circular Dichroism Signal Reveals a pH Dependent Competition between a Cyclodextrin and a Polyelectrolyte for an Atropisomeric Aromatic Guest Sung Yun Yang, Mark M. Green, Gerald Schultz, Salil K. Jha, and Axel H. E. Müller pp 12404–12405 DOI: 10.1021/ja972789s

Preparation of a Nitroxyl (HNO) Complex of Rhenium by Selective Oxidation of Coordinated Hydroxylamine Joel S. Southern and Gregory L. HillhouseArnold L. Rheingold pp 12406–12407 DOI: 10.1021/ja973316o Supporting Info

Catalytic Hydrogenolysis and Isomerization of Light Alkanes over the Silica-Supported Titanium Hydride Complex (SiO)3TiH Cécile Rosier, Gerald P. Niccolai, and Jean-Marie Basset pp 12408–12409 DOI: 10.1021/ja972488i Supporting Info

Lithium Phosphoranylidene Ylides Mes*-P(E)C(H)Li(THF)3 (E = NMes*, C(SiMe3)2):  Synthesis, Crystal Structure, and Transmetalation Thomas Baumgartner, Bernd Schinkels, Dietrich Gudat, Martin Nieger, and Edgar Niecke pp 12410–12411 DOI: 10.1021/ja9718127 Supporting Info

Synthesis of 7-Deoxyxestobergsterol A, a Novel Pentacyclic Steroid of the Xestobergsterol Class1 Michael E. Jung and Ted W. Johnson pp 12412–12413 DOI: 10.1021/ja9733189 Supporting Info

A Rational Approach to Catalytic Enantioselective Enolate Alkylation Using a Structurally Rigidified and Defined Chiral Quaternary Ammonium Salt under Phase Transfer Conditions E. J. Corey, Feng Xu, and Mark C. Noe pp 12414–12415 DOI: 10.1021/ja973174y Supporting Info

Rhodium-Catalyzed Intramolecular Silylformylation of Alkenes James L. Leighton and Eli Chapman pp 12416–12417 DOI: 10.1021/ja973095m Supporting Info

Peptide Deformylase:  A New Type of Mononuclear Iron Protein P. T. Ravi Rajagopalan, X. Christopher Yu, and Dehua Pei pp 12418–12419 DOI: 10.1021/ja9734096

Chemical Amplification through Template-Directed Synthesis Zheng-Yun J. Zhan and David G. Lynn pp 12420–12421 DOI: 10.1021/ja972870v

Antibody Engineering, Second Edition Edited by Carl A. K. Borrebaeck (University of Lund, Sweden). Oxford University Press:  New York, 1995. xv + 390 pp. $45.00. ISBN 0-19-5091507. p 12422 DOI: 10.1021/ja955288k

The Handbook of Infrared and Raman Spectra of Inorganic Compounds and Organic Salts, Four Volume Set By Richard A. Nyquist Curtis L. Putzig and M. Anne Leugers (The Dow Chemical Company). Academic Press:  San Diego, CA, 1997. 1151 pp. $1000.00. ISBN 0-12-523444-9. p 12422 DOI: 10.1021/ja965745c

Annual Review of Physical Chemistry, Volume 47 Edited by Herbert L. Strauss (University of CaliforniaBerkeley), Gerald T. Babcock (Michigan State University), and Stephen R. Leone (University of Colorado at Boulder). Annual Reviews, Inc.:  Palo Alto, CA, 1996. x + 649 pp. $56.00. ISBN 0-8243-1047-0. p 12422 DOI: 10.1021/ja965793x

International Encyclopedia of Abbreviations and Acronyms in Science and Technology (in Eight Volumes). Volume 1, A−Da Compiled by Michael Peschke. K. G. Saur Verlag:  Munchen, Germany, 1996. viii + 359 pp. DM248.00. ISBN 3-598-22971-2. p 12422 DOI: 10.1021/ja965794p

Flavor-Food Interactions. ACS Symposium Series #633 Edited by Robert J. McGorrin and Jane V. Leland (Kraft Foods). American Chemical Society:  Washington, DC, 1996. xii + 235 pp. $89.95. ISBN 0-8412-3409-4. p 12422 DOI: 10.1021/ja965808r

Artificial Self-Assembling Systems for Gene Delivery Edited by Philip L. Felgner (Vicar, Inc.), Michael J. Heller (Nanotronics, Inc.), Pierre Lehn (University of Paris), Jean Paul Behr (Universtite Louis Pasteur de Strasbourg), and Francis C. Szoka, Jr. (University of CaliforniaSan Diego). American Chemical Society:  Washington, DC, 1996. vi + 200 pp. $94.95. ISBN 0-8412-3415-9. p 12422 DOI: 10.1021/ja965809j

HPLC Methods for Pharmaceutical Analysis By George Lunn and Norman Schmuff. Wiley/VCH:  New York. 1997. xxii + 1609 pp. $150.00. ISBN 0-471-18176-5. pp 12422–12423 DOI: 10.1021/ja975646e

Kirk-Othmer Encyclopedia of Chemical Technology, Volume 21, Recycling, Oil to Silicon Edited by Jacqueline I. Kroschwitz and Mary Howe-Grant. Wiley:  New York. 1996. xxviii + 1122 pp. $325.00 ISBN 0-471-52690-8. p 12423 DOI: 10.1021/ja965810i

Water Disinfection and Natural Organic Matter:  Characterization and Control Edited by Roger A. Minear (University of Illinois) and Gary L. Amy (University of Colorado). ACS:  Washington, DC. 1996. xi + 394 pp. $109.95. ISBN 0-8412-3464-7. p 12423 DOI: 10.1021/ja975543w

Biological NMR Spectroscopy Edited by John L. Markley (University of Wisconsin) and Stanley J. Opella (University of Pennsylvania). Oxford University Press:  New York. 1997. x + 360 pp. $65.00 ISBN 0-19-509468-9. p 12423 DOI: 10.1021/ja975544o

Handbook of Capillary Electrophoresis Applications Edited by H. Shintani (National Institute of Health, Japan) and J. Polonsky (Slovak Technical University, Slovakia). Blackie Academic:  New York. 1997. xxiv + 737 pp. $229.95. ISBN 0-7514-0359-8. p 12423 DOI: 10.1021/ja975576b

Spices:  Flavor Chemistry and Antioxidant Properties Edited by Sara J. Risch (Science by Design) and Chi-Tang Ho (Rutgers, The State University of New Jersey). ACS:  Washington, DC. 1996. x + 253 pp. $99.95. ISBN 0-8412-3495-7. p 12423 DOI: 10.1021/ja975606a

Kirk-Othmer Encyclopedia of Chemical Technology, Volume 22, Silicon Compounds to Succinic Acid and Succinic Anhydride Edited by Jacqueline I. Kroschwitz and Mary Howe-Grant. Wiley:  New York. 1997. xxviii + 1102 pp. $325.00 ISBN 0-471-52691-6. p 12423 DOI: 10.1021/ja975645m

Volumetric Properties of Electrolyte Solutions:  Estimation Methods and Experimental Data By G. G. Aseyev and I. D. Zaytsev (Khar'kov Research Institute of Basic Chemistry). Begell House:  New York. 1996. 1572 pp. $175.00. ISBN 1-56700-072-X. p 12423 DOI: 10.1021/ja9756580

Agricultural Materials as Renewable Resources:  Nonfood and Industrial Applications Edited by Glenn Fuller, Thomas A. McKeon, and Donald D. Bills (U.S. Department of Agriculture). ACS:  Washington, DC. 1996. ix + 268 pp. $94.95. ISBN 0-8412-3455-8. pp 12423–12424 DOI: 10.1021/ja9755424

Organic Reactions, Volume 49 Edited by Leo A. Paquette. Wiley:  New York. 1997. vii + 700  pp. $89.95. ISBN 0-471-15655-8. p 12424 DOI: 10.1021/ja975510g

Drug Prototypes and Their Exploitation By Walter Sneader (University of Strathclyde). Wiley:  New York. 1997. vii + 788 pp. $129.95. ISBN 0-471-94847-0. p 12424 DOI: 10.1021/ja975513t

Saponins Used in Traditional and Modern Medicine:  Advances in Experimental Medicine and Biology, Volume 404 Edited by George R. Waller (Oklahoma State University) and Kazuo Yamasaki (Hiroshima University). Plenum Press:  New York. 1996. xiii + 606 pp. $145.00 ISBN 0-306-45393-2. p 12424 DOI: 10.1021/ja975521+

Concise Encyclopedia:  Biochemistry and Molecular Biology, 3rd Edition Revised and Expanded by Thomas A. Scott and E. Ian Mercer. Walter de Gruyter, Inc.:  Hawthorne, NY. 1997. vii + 737 pp. $99.95. ISBN 3-11-014535-9. p 12424 DOI: 10.1021/ja975535f

Annual Review of Biophysics and Biomolecular Structure, Volume 26 Edited by Robert M. Stroud (University of CaliforniaSan Francisco), Wayen L. Hubbell (University of California at Los Angeles), Wilma K. Olson (Rutgers, The State University of New Jersey), and Michael P. Sheetz (Duke University). Annual Reviews, Inc.:  Palo Alto. 1997. xi + 704 pp. $70.00. ISBN 0-8243-1826-0. p 12424 DOI: 10.1021/ja975595l

Proceedings of the Eighth International Symposium on Cyclodextrins, Budapest, Hungary, March 31−April 2, 1996 Edited by J. Szejtli and L. Szente (Cyclolab, Budapest). Kluwer Academic:  Dordrecht. 1996. xxiii + 685 pp. $320.00. ISBN 0-7923-4029-9. p 12424 DOI: 10.1021/ja975598y

Progress in Fourier-Transform Spectroscopy Mikrochimica Acta Supplement 14 Edited by J. Mink and G. Keresztury (Hungarian Academy of Sciences) and R. Kellner (Technische Universität Wein). Springer:  Wein. 1997. xxii + 835 pp. DM330.00. ISBN 3-211-82931-8. p 12424 DOI: 10.1021/ja975666g

Issue 51

Total Synthesis of Dysidiolide E. J. Corey and Bryan E. Roberts pp 12425–12431 DOI: 10.1021/ja973023v Supporting Info

Thermodynamic vs Supramolecular Effects in the Regiocontrol of the Formation of New Cyclotriphosphazene-Containing Chiral Ligands with 1,1‘-Binaphthyl Units:  Spiro vs Ansa Substitution at the N3P3 Ring Krystyna Brandt, Iwona Porwolik-Czomperlik, Mariola Siwy, Teobald Kupka, Robert A. Shaw, David B. Davies, Michael B. Hursthouse, and Georgia D. Sykara pp 12432–12440 DOI: 10.1021/ja972372m Supporting Info

Mechanistic Studies on the Aryl−Aryl Interchange Reaction of ArPdL2I (L = Triarylphosphine) Complexes Felix E. Goodson, Thomas I. Wallow, and Bruce M. Novak pp 12441–12453 DOI: 10.1021/ja972554g Supporting Info

Functionalized Major-Groove and Minor-Groove Chiral Polybinaphthyls:  Application in the Asymmetric Reaction of Aldehydes with Diethylzinc Qiao-Sheng Hu, Wei-Sheng Huang, Dilrukshi Vitharana, Xiao-Fan Zheng, and Lin Pu pp 12454–12464 DOI: 10.1021/ja972623r

Glycolipids from Sponges. 6.1 Plakoside A and B, Two Unique Prenylated Glycosphingolipids with Immunosuppressive Activity from the Marine Sponge Plakortis simplex Valeria Costantino, Ernesto Fattorusso, Alfonso Mangoni, Massimo Di Rosa, and Angela Ianaro pp 12465–12470 DOI: 10.1021/ja9727225 Supporting Info

Structure-Based Design of a Novel Series of Nonpeptide Ligands That Bind to the pp60src SH2 Domain Elizabeth A. Lunney, Kimberly S. Para, J. Ronald Rubin, Christine Humblet, James H. Fergus, James S. Marks, and Tomi K. Sawyer pp 12471–12476 DOI: 10.1021/ja971794t Supporting Info

A Luminescent Sensor Responsive to Common Oxoacids:  X-ray Crystal Structure of [H3O·1,8- Oxybis(ethyleneoxyethyleneoxy)anthracene-9,10-dione]ClO4 Victor G. Young, Jr., Heidi L. Quiring, and Andrew G. Sykes pp 12477–12480 DOI: 10.1021/ja9727124 Supporting Info

Aggregation of Stilbene Derivatized Fatty Acids and Phospholipids in Monolayers and Vesicles1 Xuedong Song, Cristina Geiger, Mohammad Farahat, Jerry Perlstein, and David G. Whitten pp 12481–12491 DOI: 10.1021/ja972292i Supporting Info

Preassociation, Free-Ion, and Ion-Pair Pathways in the Electrophilic Bromination of Substituted cis- and trans-Stilbenes in Protic Solvents Marie-Françoise Ruasse, Giacomo Lo Moro, Bernard Galland, Roberto Bianchini, Cinzia Chiappe, and Giuseppe Bellucci pp 12492–12502 DOI: 10.1021/ja9700461 Supporting Info

Controlling Catenations, Properties and Relative Ring-Component Movements in Catenanes with Aromatic Fluorine Substituents Roberto Ballardini, Vincenzo Balzani, Alberto Credi, Christopher L. Brown, Richard E. Gillard, Marco Montalti, Douglas Philp, J. Fraser Stoddart, Margherita Venturi, Andrew J. P. White, Brian J. Williams, and David J. Williams pp 12503–12513 DOI: 10.1021/ja970640a Supporting Info

Multiply Stranded and Multiply Encircled Pseudorotaxanes Peter R. Ashton, Matthew C. T. Fyfe, Peter T. Glink, Stephan Menzer, J. Fraser Stoddart, Andrew J. P. White, and David J. Williams pp 12514–12524 DOI: 10.1021/ja9714806 Supporting Info

Spectroscopic Investigation of Peroxide Binding to the Trinuclear Copper Cluster Site in Laccase:  Correlation with the Peroxy-Level Intermediate and Relevance to Catalysis Uma M. Sundaram, Hua H. Zhang, Britt Hedman, Keith O. Hodgson, and Edward I. Solomon pp 12525–12540 DOI: 10.1021/ja972039i Supporting Info

Mixed Chloride Phosphine Complexes of Dirhenium Cores. 1. New Reactions and Unprecedented Structures Involving Trimethylphosphine F. Albert Cotton, Evgeny V. Dikarev, and Marina A. Petrukhina pp 12541–12549 DOI: 10.1021/ja9733245 Supporting Info

Pillared Layered Metal Phosphonates. Syntheses and X-ray Powder Structures of Copper and Zinc Alkylenebis(phosphonates) Damodara M. Poojary, Baolong Zhang, and Abraham Clearfield pp 12550–12559 DOI: 10.1021/ja9714043 Supporting Info

Intramolecular [4+2] Diels−Alder Cycloaddition of a 2H-Phosphole to Coordinated Unsaturated Phosphines, Phospholes, and an Arsine Kalyani Maitra, Vincent J. Catalano, and John H. Nelson pp 12560–12567 DOI: 10.1021/ja9724654 Supporting Info

Conducting Polymetallorotaxanes:  Metal Ion Mediated Enhancements in Conductivity and Charge Localization S. Sherry Zhu and Timothy M. Swager pp 12568–12577 DOI: 10.1021/ja972794w

Synthesis, Transient Absorption, and Transient Resonance Raman Spectroscopy of Novel Electron Donor−Acceptor Complexes:  [5,15-Bis[(4‘-nitrophenyl)ethynyl]-10,20- diphenylporphinato]copper(II) and [5-[[4‘-(Dimethylamino)phenyl]ethynyl]-15-[(4‘‘-nitrophenyl)ethynyl]-10,20-diphenylporphinato]copper(II) Steven M. LeCours, Charles M. Philips, Julio C. de Paula, and Michael J. Therien pp 12578–12589 DOI: 10.1021/ja964436j Supporting Info

Ab Initio Calculations on 2,6-Dimethylphenol and 4-(2,6-Dimethylphenoxy)-2,6-dimethylphenol. Evidence of an Important Role for the Phenoxonium Cation in the Copper-Catalyzed Oxidative Phenol Coupling Reaction Patrick J. Baesjou, Willem L. Driessen, Ger Challa, and Jan Reedijk pp 12590–12594 DOI: 10.1021/ja971612v Supporting Info

Evidence for the Transition between Concerted and Stepwise Heterogeneous Electron Transfer−Bond Fragmentation Mechanisms Sabrina Antonello and Flavio Maran pp 12595–12600 DOI: 10.1021/ja971649f

Coupled Electron-Proton Transfer in Interactions of Triplet C60 with Hydrogen-Bonded Phenols:  Effects of Solvation, Deuteration, and Redox Potentials László Biczók, Neeraj Gupta, and Henry Linschitz pp 12601–12609 DOI: 10.1021/ja9727528

Vibrational Spectrum of Bathorhodopsin in the Room-Temperature Rhodopsin Photoreaction F. Jger, L. Ujj, and G. H. Atkinson pp 12610–12618 DOI: 10.1021/ja9715298

Conformational Changes in Spin-Labeled Cephalosporin and Penicillin upon Hydrolysis Revealed by Electron Nuclear Double Resonance Spectroscopy Devkumar Mustafi, Mona M. Knock, Robert W. Shaw, and Marvin W. Makinen pp 12619–12628 DOI: 10.1021/ja971717y

Experimental Characterization of Models for Backbone Picosecond Dynamics in Proteins. Quantification of NMR Auto- and Cross-correlation Relaxation Mechanisms Involving Different Nuclei of the Peptide Plane Mark W. F. Fischer, Lei Zeng, Yuxi Pang, Weidong Hu, Ananya Majumdar, and Erik R. P. Zuiderweg pp 12629–12642 DOI: 10.1021/ja972083y Supporting Info

Approaches to the Solution NMR Characterization of Active Sites for 65 kDa Tetrameric Hemoglobins in the Paramagnetic Cyanomet State Urszula Kolczak, Chang Han, L. A. Sylvia, and Gerd N. La Mar pp 12643–12654 DOI: 10.1021/ja9722133 Supporting Info

Total Synthesis of (+)-Narciclasine James H. Rigby and Mary E. Mateo pp 12655–12656 DOI: 10.1021/ja972950z Supporting Info

Reactions of Alkyl Alkylidene Complexes with Silanes. Synthesis and Characterization of Novel Tantalum 1,1-Metallasilacyclobutadiene and Disilyl-Substituted Alkylidene Complexes Jonathan B. Diminnie and Ziling Xue pp 12657–12658 DOI: 10.1021/ja972302f Supporting Info

Novel Photorearrangements of 2-Aza-1,4-dienes To Produce Vinylaziridines and Cyclopropylimines Diego Armesto, Olga Caballero, and Ulises Amador pp 12659–12660 DOI: 10.1021/ja972054n Supporting Info

Efficient, Aerobic, Ruthenium-Catalyzed Oxidation of Alcohols into Aldehydes and Ketones István E. Markó, Paul R. Giles, Masao Tsukazaki, Isabelle Chellé-Regnaut, Christopher J. Urch, and Stephen M. Brown pp 12661–12662 DOI: 10.1021/ja973227b

A Dissociative Mechanism for Reactions of Nitric Oxide with Water Soluble Iron(III) Porphyrins Leroy E. Laverman, Mikio Hoshino, and Peter C. Ford pp 12663–12664 DOI: 10.1021/ja972448e Supporting Info

The Formic Acid 1D Array with H Bonds All Reversed:  Structure of a Cocrystal with Hydrogen Fluoride1,2 Dirk Wiechert, Dietrich Mootz, and Thomas Dahlems pp 12665–12666 DOI: 10.1021/ja972337f Supporting Info

Analysis of Backbone Hydrogen Bonding in a β-Turn of Staphylococcal Nuclease Injae Shin, Alice Y. Ting, and Peter G. Schultz pp 12667–12668 DOI: 10.1021/ja972820q

An Evaluation of the Aromaticity of Inorganic Rings:  Refined Evidence from Magnetic Properties Paul von Ragué Schleyer, Haijun Jiao, Nicolaas J. R. van Eikema Hommes, Vladimir G. Malkin, and Olga L. Malkina pp 12669–12670 DOI: 10.1021/ja9719135

Chiral Capsules:  Asymmetric Binding in Calixarene-Based Dimers Ronald K. Castellano, Byeang Hyean Kim, and Julius Rebek, Jr. pp 12671–12672 DOI: 10.1021/ja973132+ Supporting Info

Electrocatalytic Reactivity of Zeolite-Encapsulated Co(salen) with Benzyl Chloride Carol A. Bessel and Debra R. Rolison pp 12673–12674 DOI: 10.1021/ja971779o

Remarkable Stabilization of Self-Assembled Organogels by Polymerization Maaike de Loos, Jan van Esch, Iets Stokroos, Richard M. Kellogg, and Ben L. Feringa pp 12675–12676 DOI: 10.1021/ja972899z Supporting Info

Tandem Claisen Rearrangement:  A Novel, One-Step Synthesis of Calixarene Analogues from Macrocyclic Polyethers Kazuhisa Hiratani, Kazuyuki Kasuga, Midori Goto, and Hirotaka Uzawa pp 12677–12678 DOI: 10.1021/ja9722887 Supporting Info

A Triphenylphoshine Oxide−Water Aggregate Facilitates an Exceptionally Short C−H···O Hydrogen Bond Benson M. Kariuki, Kenneth D. M. Harris, Douglas Philp, and James M. A. Robinson pp 12679–12680 DOI: 10.1021/ja973506z Supporting Info

Highly Correlated Organic Conductor with Magnetic Anions Exhibiting a π−d Coupled Metal−Insulator Transition, λ-(BETS)2FeBrxCl4-x (BETS = Bis(ethylenedithio)tetraselenafulvalene) Hiroki Akutsu, Emiko Arai, and Hayao KobayashiHisashi Tanaka and Akiko KobayashiPatrick Cassoux pp 12681–12682 DOI: 10.1021/ja9733853

Models for Nonheme Diiron Enzymes. Assembly of a High-Valent Fe2(μ-O)2 Diamond Core from Its Peroxo Precursor Yanhong Dong, Yan Zang, Lijin Shu, Elizabeth C. Wilkinson, and Lawrence Que, Jr.Karl Kauffmann and Eckard Münck pp 12683–12684 DOI: 10.1021/ja973115k

Inherently Hindered Rotation about a Disulfide Bond James P. Snyder, Neysa Nevins, Sylvie L. Tardif, and David N. Harpp pp 12685–12686 DOI: 10.1021/ja9728536 Supporting Info

Ab Initio Photoisomerization Dynamics of a Simple Retinal Chromophore Model Thom Vreven, Fernando Bernardi, Marco Garavelli, Massimo Olivucci, Michael A. Robb, and H. Bernhard Schlegel pp 12687–12688 DOI: 10.1021/ja9725763 Supporting Info

Nitrite Reduction by Myoglobin in Surfactant Films Rong Lin, Mekki Bayachou, John Greaves, and Patrick J. Farmer pp 12689–12690 DOI: 10.1021/ja972529a Supporting Info

Functional Evidence That the 3‘-5‘ Exonuclease Domain of Escherichia coli DNA Polymerase I Employs a Divalent Metal Ion in Leaving Group Stabilization Jessica F. Curley, Catherine M. Joyce, and Joseph A. Piccirilli pp 12691–12692 DOI: 10.1021/ja972014j Supporting Info

Endohedral Metallofullerenes. Are the Isolated Pentagon Rule and Fullerene Structures Always Satisfied? Kaoru Kobayashi and Shigeru NagaseMitsuho Yoshida and Eiji Ōsawa pp 12693–12694 DOI: 10.1021/ja9733088

The X-ray Single Crystal Structure of a Gallium Citrate Complex (NH4)3[Ga(C6H5O7)2]·4H2O Paul O'Brien, Henryk Salacinski, and Majid Motevalli pp 12695–12696 DOI: 10.1021/ja973009i Supporting Info

Enzymatic, Polymer-Supported Formation of an Analog of the Trypsin Inhibitor A90720A:  A Screening Strategy for Macrocyclic Peptidase Inhibitors Matthew T. Burger and Paul A. Bartlett pp 12697–12698 DOI: 10.1021/ja971216c Supporting Info

Syn-Oxidative Polycyclizations of Hydroxypolyenes:  Highly Stereoselective and Potentially Biomimetic Syntheses of all-trans-Polytetrahydrofurans J. Am. Chem. Soc. 1997, 119 (26), 6022−6028 Timothy B. Towne and Frank E. McDonald p 12699 DOI: 10.1021/ja9754261

Atomic Force Microscopy/Scanning Tunneling Microscopy 2 Edited by Samuel H. Cohen and Marcia L. Lightbody (Natick Research, Development and Engineering Center). Plenum Press:  New York. 1997. ix + 250 pp. $85.00. ISBN 0-306-45596-X. p 12699 DOI: 10.1021/ja9755976

Advances in Cycloaddition, Volume 4 Edited by Mark Lautens (University of Toronto). JAI:  New York. 1997. ix + 210 pp. $109.50. ISBN 1-55938-695-9. Gretchen Rehberg pp 12699–12700 DOI: 10.1021/ja975588x

Handbook of Physical Properties of Liquids and Gases:  Pure Substances and Mixtures. Third Augmented and Revised Edition By N. B. Vargaftik, Y. R. Vinogradov, and V. S. Yargin (Moscow Aviation Institute). Begell House:  New York. 1996. 1370 pp. $165.00. ISBN 1-56700-063-0. p 12700 DOI: 10.1021/ja975545g

Fuzzy Logic In Chemistry Edited by Dennis H. Rouvray (The University of Georgia). Academic Press:  San Diego. 1997. xxii + 364 pp. $80.00. ISBN 0-12-598910-5. Yinlun Huang p 12700 DOI: 10.1021/ja9755469

Properties of Complex Inorganic Solids Edited by Antonios Gonis, Annemarie Meike, and Patrice E. A. Turchi (Lawrence Livermore National Laboratory). Plenum Press:  New York. 1997. xii + 510 pp. $135.00. ISBN 0-306-45606-0. p 12700 DOI: 10.1021/ja975638y

Chemical, Structural and Electronic Analysis of Heterogeneous Surfaces on Nanometer Scale. NATO ASI Series E:  Applied Sciences, Volume 333 Edited by Renzo Rosei (University of Trieste). Kluwer:  Dordrecht. 1997. x + 132 pp. $99.00. ISBN 0-7923-4489-8. p 12700 DOI: 10.1021/ja975664w

Issue 52

Formation of Protein Charge Ladders by Acylation of Amino Groups on Proteins Ian J. Colton, Janelle R. Anderson, Jinming Gao, Robert G. Chapman, Lyle Isaacs, and George M. Whitesides pp 12701–12709 DOI: 10.1021/ja9723491

Chemical Synthesis of Oligodeoxyribonucleotides Using N-Unprotected H-Phosphonate Monomers and Carbonium and Phosphonium Condensing Reagents:  O-Selective Phosphonylation and Condensation Takeshi Wada, Yuichi Sato, Fumio Honda, Shun-ichi Kawahara, and Mitsuo Sekine pp 12710–12721 DOI: 10.1021/ja9726015 Supporting Info

Transition State Imbalance in the Deprotonation of Substituted 2-Tetralones by Hydroxide Ion John B. Nevy, David C. Hawkinson, Grzegorz Blotny, Xudong Yao, and Ralph M. Pollack pp 12722–12726 DOI: 10.1021/ja972600c Supporting Info

NMR Spectroscopic Evidence for the Structure of Iminium Ion Pairs Herbert Mayr, Armin R. Ofial, Ernst-Ulrich Würthwein, and Nicola C. Aust pp 12727–12733 DOI: 10.1021/ja972860u Supporting Info

Asymmetry of Hydrogen Bonds in Solutions of Monoanions of Dicarboxylic Acids Charles L. Perrin and Jennifer B. Nielson pp 12734–12741 DOI: 10.1021/ja9729084

An Air Stable Carbene and Mixed Carbene “Dimers” Anthony J. Arduengo, III, Frederic Davidson, H. V. R. Dias, Jens R. Goerlich, Dilip Khasnis, William J. Marshall, and T. K. Prakasha pp 12742–12749 DOI: 10.1021/ja973241o Supporting Info

Preparation, Structure, and Properties of Symmetrically 1,3-Difunctionalized Penta- and Hexafluorobicyclo[1.1.1]pentanes Michael D. Levin, Steven J. Hamrock, Piotr Kaszynski, Alexander B. Shtarev, Galina A. Levina, Bruce C. Noll, Martin E. Ashley, Richard Newmark, George G. I. Moore, and Josef Michl pp 12750–12761 DOI: 10.1021/ja9710518 Supporting Info

Intramolecular Photoinduced Electron Transfer to Anthraquinones Linked to Duplex DNA:  The Effect of Gaps and Traps on Long-Range Radical Cation Migration Susan M. Gasper and Gary B. Schuster pp 12762–12771 DOI: 10.1021/ja972496z

Electrophilic Addition to η2-Aldehyde Complexes of Pentaammineosmium(II):  The Formation of Fischer Carbyne Complexes via η2-Aldehydium Intermediates Michael L. Spera, Huiyuan Chen, Marcus W. Moody, Maria M. Hill, and W. Dean Harman pp 12772–12778 DOI: 10.1021/ja972766d Supporting Info

Mechanistic Aspects of the Alternating Copolymerization of Propene with Carbon Monoxide Catalyzed by Pd(II) Complexes of Unsymmetrical Phosphine−Phosphite Ligands Kyoko Nozaki, Naomasa Sato, Yoichi Tonomura, Masako Yasutomi, Hidemasa Takaya, Tamejiro Hiyama, Toshiaki Matsubara, and Nobuaki Koga pp 12779–12795 DOI: 10.1021/ja973199x Supporting Info

SFM Tip-Assisted Hydrolysis of a Dithiobis(succinimido undecanoate) Monolayer Chemisorbed on a Au(111) Surface Jianhong Wang, Jeremy R. Kenseth, Vivian W. Jones, John-Bruce D. Green, Mark T. McDermott, and Marc D. Porter pp 12796–12799 DOI: 10.1021/ja9715051

Monomeric Cyclopentadienylnickel Methoxo and Amido Complexes:  Synthesis, Characterization, Reactivity, and Use for Exploring the Relationship between H−X and M−X Bond Energies Patrick L. Holland, Richard A. Andersen, Robert G. Bergman, Jinkun Huang, and Steven P. Nolan pp 12800–12814 DOI: 10.1021/ja971829p Supporting Info

X-ray Crystal Structures of Cp*Ni(PEt3)X [X = Br, O(p-C6H4Me), NH(p-C6H4Me), S(p-C6H4Me), OCH3, CH2C6H5, Me, H, PEt3+]. Understanding Distortions and Trans Influences in Cyclopentadienyl Complexes Patrick L. Holland, Michael E. Smith, Richard A. Andersen, and Robert G. Bergman pp 12815–12823 DOI: 10.1021/ja971830o Supporting Info

Novel Quaternary Metal-Rich Phosphides:  Stabilization by Differential Fractional Site Occupancies and Polar Intermetallic Bonding Holger Kleinke and Hugo F. Franzen pp 12824–12830 DOI: 10.1021/ja9718681 Supporting Info

Structure and Reactivity of Chelating Imido−Amido Complexes of Tantalum. Mechanistic Studies on the Addition of Silanes to Ta−N Multiple Bonds Tomislav I. Gountchev and T. Don Tilley pp 12831–12841 DOI: 10.1021/ja9721982 Supporting Info

Zirconocene-Mediated Intramolecular Carbon−Carbon Bond Formation of Two Alkynyl Groups of Bis(alkynyl)silanes Zhenfeng Xi, Reinald Fischer, Ryuichiro Hara, Wen-Hua Sun, Yasushi Obora, Noriyuki Suzuki, Kiyohiko Nakajima, and Tamotsu Takahashi pp 12842–12848 DOI: 10.1021/ja972381v Supporting Info

Molecular Recognition and Reactivity of Ruthenium(II) Bipyridine Barbituric Acid Guests in the Presence of Complementary Hosts:  Ruthenium(II) Promoted Enolization of Barbituric Acids in Guest−Host Complexes Teen Chin, Zhinong Gao, Isabelle Lelouche, Yeung-gyo K. Shin, Ashok Purandare, Spencer Knapp, and Stephan S. Isied pp 12849–12858 DOI: 10.1021/ja971481y

Photoprocesses in Self-Assembled Complexes of Oligopeptides with Metalloporphyrins Mohamed Aoudia and Michael A. J. Rodgers pp 12859–12868 DOI: 10.1021/ja972492u

Absolute Rate Constants and Arrhenius Parameters for the Addition of the Methyl Radical to Unsaturated Compounds:  The Methyl Affinities Revisited Torsten Zytowski and Hanns Fischer pp 12869–12878 DOI: 10.1021/ja973128y Supporting Info

Gas-Phase Reactions of Fe(CH2O)+ and Fe(CH2S)+ with Small Alkanes:  An Experimental and Theoretical Study Quan Chen, Huiping Chen, Sabre Kais, and Ben S. Freiser pp 12879–12888 DOI: 10.1021/ja964234n

The Effects of Protonation on the Structure, Stability, and Thermochemistry of Carbon-Centered Organic Radicals Paul M. Mayer, Mikhail N. Glukhovtsev, James W. Gauld, and Leo Radom pp 12889–12895 DOI: 10.1021/ja9728839 Supporting Info

Use of Transient EPR Spectroscopy of Excited Triplet State for the Structural Assignment of Bisadducts of Fullerene C60 Luigi Pasimeni, Andreas Hirsch, Iris Lamparth, Andrea Herzog, Michele Maggini, Maurizio Prato, Carlo Corvaja, and Gianfranco Scorrano pp 12896–12901 DOI: 10.1021/ja9709583

Transient EPR Studies of Excited Triplet States in Polyadducts of C60 and Bis(ethoxycarbonyl)methylene Luigi Pasimeni, Andreas Hirsch, Iris Lamparth, Michele Maggini, and Maurizio Prato pp 12902–12905 DOI: 10.1021/ja970959v

Active Site Structures and Catalytic Mechanism of Rhodobacter sphaeroides Dimethyl Sulfoxide Reductase as Revealed by Resonance Raman Spectroscopy Shannon D. Garton, James Hilton, Hiroyuki Oku, Brian R. Crouse, K. V. Rajagopalan, and Michael K. Johnson pp 12906–12916 DOI: 10.1021/ja972109l

Stability of Like and Oppositely Charged Organic Ion Pairs in Aqueous Solution Kyoung Tai No, Ky-Youb Nam, and Harold A. Scheraga pp 12917–12922 DOI: 10.1021/ja971260s Supporting Info

Preparation, 13C NMR/DFT/IGLO Study of Benzylic Mono- and Dications, and Attempted Preparation of a Trication1 George A. Olah, Tatyana Shamma, Arwed Burrichter, Golam Rasul, and G. K. Surya Prakash pp 12923–12928 DOI: 10.1021/ja971287b

1H, 13C, 15N NMR and Ab Initio/IGLO/GIAO-MP2 Study of Mono-, Di-, Tri-, and Tetraprotonated Guanidine1 George A. Olah, Arwed Burrichter, Golam Rasul, Mohammed Hachoumy, and G. K. Surya Prakash pp 12929–12933 DOI: 10.1021/ja972553o

Mathematical Models of Nonlinear Effects in Asymmetric Catalysis:  New Insights Based on the Role of Reaction Rate Donna G. Blackmond pp 12934–12939 DOI: 10.1021/ja973049m Supporting Info

Resonance in Formamide and Its Chalcogen Replacement Analogues:  A Natural Population Analysis/Natural Resonance Theory Viewpoint Eric D. Glendening and John A. Hrabal II pp 12940–12946 DOI: 10.1021/ja970074j Supporting Info

Phenylene Coupling of Methylene Sites. The Spin States of Bis(X−methylene)-p-phenylenes and Bis(chloromethylene)-m-phenylene Carl Trindle, Sambhu Nath Datta, and Buddhadeb Mallik pp 12947–12951 DOI: 10.1021/ja9704139 Supporting Info

Hydrogen Bonding between Amino Acid Backbone and Side Chain Analogues:  A High-Level ab Initio Study Kyungsun Kim and Richard A. Friesner pp 12952–12961 DOI: 10.1021/ja971836d

Intrinsic and Environmental Effects in the Structure and Magnetic Properties of Glycine Radical in Aqueous Solution Nadia Rega, Maurizio Cossi, and Vincenzo Barone pp 12962–12967 DOI: 10.1021/ja971838y Supporting Info

H-Bridged Structures for Tetrahedranes A4H4 (A = C, Si, Ge, Sn, and Pb) Gantasala Naga Srinivas and Eluvathingal D. Jemmis pp 12968–12973 DOI: 10.1021/ja972070k Supporting Info

Steric Tuning of Reactivity and Enantioselectivity in Addition of Thiophenol to Enoates Catalyzed by an External Chiral Ligand Katsumi Nishimura, Masashi Ono, Yasuo Nagaoka, and Kiyoshi Tomioka pp 12974–12975 DOI: 10.1021/ja9729950 Supporting Info

The First Synthesis of a Daphnane Diterpene:  The Enantiocontrolled Total Synthesis of (+)-Resiniferatoxin Paul A. Wender, Cynthia D. Jesudason, Hiroyuki Nakahira, Norikazu Tamura, Anne Louise Tebbe, and Yoshihide Ueno pp 12976–12977 DOI: 10.1021/ja972279y Supporting Info

Self-Encapsulation, Acceleration and Control in the Radical Polymerization of Monodendritic Monomers via Self-Assembly V. Percec, C.-H. Ahn, and B. Barboiu pp 12978–12979 DOI: 10.1021/ja9727878 Supporting Info

Aldehyde-Terminated Self-Assembled Monolayers on Gold:  Immobilization of Amines onto Gold Surfaces Ronald C. HortonJr., Tonya M. Herne, and David C. Myles pp 12980–12981 DOI: 10.1021/ja971329w Supporting Info

Elucidation of Transition Structures and Solvent Effects for Epoxidation by Dimethyldioxirane Corky Jenson, Jian Liu, Kendall N. Houk, and William L. Jorgensen pp 12982–12983 DOI: 10.1021/ja971766a Supporting Info

XH52+ Dications and XH63+ Trications (X = N, P, and As)1 Golam Rasul, G. K. Surya Prakash, and George A. Olah pp 12984–12985 DOI: 10.1021/ja9729948

Recognition of DNA Base Mismatches by a Rhodium Intercalator Brian A. Jackson and Jacqueline K. Barton pp 12986–12987 DOI: 10.1021/ja972489a Supporting Info