1993 year
Main Index

Issue 1

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX001

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP001

Instructions for authors (1993) J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300000xi

Dalton perspectives. Biomineralization: the hard part of bioinorganic chemistry! Stephen Mann, pp 1 DOI:10.1039/DT9930000001

Thiolato-bridged -cycloheptatrienyl molybdenum complexes Malcolm L. H. Green and Dennis K. P. Ng, pp 11 DOI:10.1039/DT9930000011

-1,2,4,6-Tetramethylcycloheptatrienyl molybdenum chemistry Malcolm L. H. Green and Dennis K. P. Ng, pp 17 DOI:10.1039/DT9930000017

Synthesis and crystal structure of 1,1,2,2-bis(1,2,3-trithia-[3])ferrocenophane Nicholas J. Long, Suzanne J. Sharkey, Michael B. Hursthouse and Muhammed A. Mazid, pp 23 DOI:10.1039/DT9930000023

Metallaheteroborane chemistry. Part 11. Selective syntheses of the palladium heteroborane complexes [2,2-(PR3)2-closo-2,1-PdEB10H10](R3= Ph3, MePh2 or Me2Ph; E = Se or Te) and [2-X-2-(PPh3)-closo-2,1-PdTeB10H9(PPh3)](X = Cl, Br, I, CN, SCN or O2CMe) George Ferguson, John F. Gallagher, Marguerite McGrath, James P. Sheehan, Trevor R. Spalding and John D. Kennedy, pp 27 DOI:10.1039/DT9930000027

Metallaheteroborane chemistry. Part 12. Synthesis of cationic metallaheteroboranes [2-L-2-(PPh3)-closo-2,1-PdTeB10H9(PPh3)][BF4]; molecular structures of the compounds with L = H2O or CO James P. Sheehan, Trevor R. Spalding, George Ferguson, John F. Gallagher, Branko Kaitner and John D. Kennedy, pp 35 DOI:10.1039/DT9930000035

Characterisation of a new solid-state isomer of the [Fe5N(CO)14]- ion Rosamund Hourihane, Trevor R. Spalding, George Ferguson, Tony Deeney and Piero Zanello, pp 43 DOI:10.1039/DT9930000043

Monomeric and dimeric acyloxydialkylboranes Mohamed Yalpani, Roland Boese, Klaus Seevogel and Roland Köuster, pp 47 DOI:10.1039/DT9930000047

The stereochemistry of alkyne insertion into Ru-H and Ru-Cl bonds Jonathan D. Vessey and Roger J. Mawby, pp 51 DOI:10.1039/DT9930000051

Oligomerization and isomerization of olefins by catalysts derived from nickel complexes of dithio--diketonates Ramyani Abeywickrema, Martin A. Bennett, Kingsley J. Cavell, Michael Kony, Anthony F. Masters and Alison G. Webb, pp 59 DOI:10.1039/DT9930000059

Preparation and crystal structures of trans-[Fe(NCMe)2(Ph2PCH2PPh2)2][FeI4]·2H2O and [Fe{Ph2P(O)CH2P(O)Ph2}3][I3]2 J. Elaine Barclay, David J. Evans, David L. Hughes and G. Jeffery Leigh, pp 69 DOI:10.1039/DT9930000069

Isolation and characterisation of iron(II) complexes with dinitrogen, and of other derivatives, especially from phenylacetylene David L. Hughes, G. Jeffery Leigh, Manuel Jimenez-Tenorio and Adrian T. Rowley, pp 75 DOI:10.1039/DT9930000075

Synthesis and co-ordination chemistry of the macrocycle 1,4,7-triisopropyl-1,4,7-triazacyclononane Gabriele Haselhorst, Stefan Stoetzel, Anja Strassburger, Wolfgang Walz, Karl Wieghardt and Bernhard Nuber, pp 83 DOI:10.1039/DT9930000083

Cyclopentadienone complexes of molybdenum: synthesis of carbonyl, acetonitrile, phosphine and phosphido-bridged derivatives Harry Adams, Neil A. Bailey, Paul D. Hempstead, Michael J. Morris, Sarah Riley, Roy L. Beddoes and Elizabeth S. Cook, pp 91 DOI:10.1039/DT9930000091

Diiodophosphoranes. Synthesis and structure in the solid state and in solution Neil Bricklebank, Stephen M. Godfrey, Anthony G. Mackie, Charles A. McAuliffe, Robin G. Pritchard and Peter J. Kobryn, pp 101 DOI:10.1039/DT9930000101

Molybdenum(VI) and tungsten(VI) complex formation. Part 5. The reaction with lactate in 1.0 mol dm-3 sodium chloride medium Johannes J. Cruywagen, Leon Krüger and Elisabeth A. Rohwer, pp 105 DOI:10.1039/DT9930000105

Reaction of nitric oxide with sulfur(IV) oxides in the presence of iron(II) complexes in aqueous solution Volker Zang and Rudi van Eldik, pp 111 DOI:10.1039/DT9930000111

Water-soluble thiaporphyrins and metallothiaporphyrins; synthesis, characterization, ground- and excited-state properties Ramasamy P. Pandian and Tavarekere K. Chandrashekar, pp 119 DOI:10.1039/DT9930000119

Novel hexanuclear ruthenium clusters with unusual metal framework geometries: boat and sofa configurations of the Ru6 core Ulf Bodensieck, Lisa Hoferkamp, Helen Stoeckli-Evans and George Süss-Fink, pp 127 DOI:10.1039/DT9930000127

2-Substituted icosahedral monocarbon carboranes. Part 1. Synthesis via boron insertion Francis S. Mair, John H. Morris, Donald F. Gaines and Douglas Powell, pp 135 DOI:10.1039/DT9930000135

Reactivity of the binuclear hydride [Fe2(CO)4(µ-H)(µ-CO)(µ-PPh2)(µ-Ph2PCH2PPh2)] to generate phosphido and hydroxide moieties at the diiron centre Graeme Hogarth and Mark H. Lavender, pp 143 DOI:10.1039/DT9930000143

Spin crossover in heterodinuclear iron(III) Schiff-base complexes Cynthia T. Brewer, Greg Brewer, Leopold May, Jennifer Sitar and Ru Wang, pp 151 DOI:10.1039/DT9930000151

Structural and magnetic studies of a zigzag chain copper(II) complex and a dipolar spin-coupled copper(II) dimer with the versatile ligand 5-[(2-carboxyphenyl)azo]-1,3-dimethylbarbituric acid Enrique Colacio, José Ruiz, José M. Moreno, Raikko Kivekäs, Markku R. Sundberg, José M. Dominguez-Vera and Jean P. Laurent, pp 157 DOI:10.1039/DT9930000157

Substituted metal carbonyls. Part 21. [M(CO)5(dppf-P)][M = Cr, Mo or W; dppf = Fe(C5H4PPh2)2] as a metalloligand in heteropolymetallic aggregates of AuI, PdII and PtII. Crystal and molecular structures of [PtCl2{(µ-dppf)W(CO)5}2] and [Mo(CO)5(dppf-P)] Lai-Tee Phang, Steve C. F. Au-Yeung, T. S. Andy Hor, Soo Beng Khoo, Zhong-Yuan Zhou and Thomas C. W. Mak, pp 165 DOI:10.1039/DT9930000165

Influence of interstitial atoms in transition-metal carbonyl clusters Angelo Sironi, pp 173 DOI:10.1039/DT9930000173

Spectroscopy, photophysical properties and crystal structures of luminescent diplatinum(I) complexes of bis(diphenylphosphino)methane Hon-Kay Yip, Chi-Ming Che and Shie-Ming Peng, pp 179 DOI:10.1039/DT9930000179

Spectroscopic properties and crystal structures of luminescent linear tri- and tetra-nuclear gold(I) complexes with bis(diphenylphosphinomethyl)phenylphosphine ligand Dan Li, Chi-Ming Che, Shie-Ming Peng, Shiuh-Tzung Liu, Zhong-Yuan Zhou and Thomas C. W. Mak, pp 189 DOI:10.1039/DT9930000189

Dalton communications. Synthesis, photophysical properties and crystal structure of a luminescent binuclear three-co-ordinated gold(I) complex without metal-metal interaction Shen-Jye Shieh, Dan Li, Shie-Ming Peng and Chi-Ming Che, pp 195 DOI:10.1039/DT9930000195

Proton-coupled electron-transfer reactions. Observation of a reversible OsIV(amide)-OsIII(amine) redox couple with 2,3-diamino-2,3-dimethylbutane Kwok-Fai Chin, Kwok-Yin Wong and Chi-Ming Che, pp 197 DOI:10.1039/DT9930000197

Pseudo-raft rhenium-platinum clusters. Synthesis and crystal structure of the anions [PtRe3(µ-H)(CO)13]2- and [PtRe4(CO)17]2-, containing a central Pt atom surrounded by a folded stripe of Re atoms Tiziana Beringhelli, Alessando Ceriotti, Gianfranco Ciani, Giuseppe D'Alfonso, Luigi Garlaschelli, Roberto Della Pergola, Massimo Moret and Angelo Sironi, pp 199 DOI:10.1039/DT9930000199

Evidence for anionic protection of phosphenium centres Neil Burford, Pierre Losier, Pradip K. Bakshi and T. Stanley Cameron, pp 201 DOI:10.1039/DT9930000201

Additions and corrections Brian E. Mann, Maria D. Vargas and Rayesh Khadar, pp 203 DOI:10.1039/DT9930000203

IUPAC publications on nomenclature and symbolism J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000xxix

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viia

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX003

Issue 2

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX005

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP007

Synthesis, characterization and crystal structures of novel hafnium porphyrins Sanghoon Ryu, Dongmok Whang, Jaheon Kim, Whanjin Yeo and Kimoon Kim, pp 205 DOI:10.1039/DT9930000205

Inverse cryptate structure of an exceptionally stable dicopper(I) semiquinonoid intermediate Michael Moscherosch, John S. Field, Wolfgang Kaim, Stephan Kohlmann and Michael Krejcik, pp 211 DOI:10.1039/DT9930000211

A new mixed-valence binuclear complex containing the [MnIV(µ-O)2(µ-O2CMe)MnIII]2+ core: synthesis, magnetism, electron paramagnetic resonance and redox properties Samiran Mahapatra, Pampa Das and Rabindranath Mukherjee, pp 217 DOI:10.1039/DT9930000217

Synthesis and characterization of bis(diphenylphosphino)methanide and -amide complexes of NiII and PdII. Crystal structure of [PdCl(Ph2PNPPh2)(PEt3)] Montserrat Gómez, Guillermo Muller, Joaquim Sales and Xavier Solans, pp 221 DOI:10.1039/DT9930000221

Concurrent rearrangement of phenylimido and alkenyl ligands on a WRu2 metal triangle Ren-Chiun Lin, Yun Chi, Shie-Ming Peng and Gene-Hsiang Lee, pp 227 DOI:10.1039/DT9930000227

The cis- and trans-effects of cyanide in substitution at platinum(II) Lucio Cattalini, Francesca Guidi and Martin L. Tobe, pp 233 DOI:10.1039/DT9930000233

Metal valence and geometry: synthesis, structure and solution behaviour of the isomers of [Os(S2CNEt2)2(PPh3)2]0, + Amitava Pramanik, Nilkamal Bag and Animesh Chakravorty, pp 237 DOI:10.1039/DT9930000237

Preparation and characterisation of seven-co-ordinate trifluoroacetate and oxalate complexes of molybdenum(II) and tungsten(II) Brian J. Brisdon, Annabelle G. W. Hodson, Mary F. Mahon and Kieran C. Molloy, pp 245 DOI:10.1039/DT9930000245

Dicopper(II,II) and dicopper(I,II) complexes of a series of dinucleating macrocycles Hisashi kawa, Makoto Tadokoro, Yuichiro Aratake, Masaaki Ohba, Kenji Shindo, Minoru Mitsumi, Masayuki Koikawa, Mie Tomono and David E. Fenton, pp 253 DOI:10.1039/DT9930000253

Triorganophosphinegold(I) complexes of pyridine-2-thionate and pyrimidine-2-thionate Peter D. Cookson and Edward R. T. Tiekink, pp 259 DOI:10.1039/DT9930000259

Electrochemical synthesis of neutral complexes with N2SO tetradentate ligands Rufina Bastida, Andres de Blas, David E. Fenton, Carlos Rial, Teresa Rodriguez and Antonio Sousa, pp 265 DOI:10.1039/DT9930000265

Hydrophosphination of formaldehyde catalysed by tris-(hydroxymethyl)phosphine complexes of platinum, palladium or nickel Peter A. T. Hoye, Paul G. Pringle, Martin B. Smith and Kerry Worboys, pp 269 DOI:10.1039/DT9930000269

Acetylenes attached to poly(pentafluorophenyl)platinum(II) moieties. Syntheses and molecular structures of cis-[Pt(C6F5)2(PhCCPh)2] and [NBun4][Pt(C6F5)3(PhCCPh)] Rafael Usón, Juan Forniés, Milagros Tomás, Babil Menjón, Consuelo Fortuño, Alan J. Welch and D. Ewan Smith, pp 275 DOI:10.1039/DT9930000275

Tricarbonyl(carbaborane) complexes of the Group 6 metals as reagents for preparing heteronuclear dimetal compounds involving platinum Stephen J. Dossett, Donald F. Mullica, Eric L. Sappenfield, F. Gordon A. Stone and Michael J. Went, pp 281 DOI:10.1039/DT9930000281

2,2:6,2-Terpyridine (terpy) acting as a fluxional bidentate ligand. Part 1. Trimethylplatinum(IV) halide complexes [PtXMe3(terpy)](X = Cl, Br or I): nuclear magnetic resonance studies of their solution dynamics and crystal structure of [PtIMe3(terpy)] Edward W. Abel, Valentin S. Dimitrov, Nicholas J. Long, Keith G. Orrell, Anthony G. Osborne, Vladimir ik, Michael B. Hursthouse and Mohammed A. Mazid, pp 291 DOI:10.1039/DT9930000291

Preparation and characterisation of thermally stable (SeNSeNSe)n(AsF6)2 containing the electron-rich aromatic 6(SeNSeNSe)2+(n= 1) and 7 SeNSeNSe+(n= 2) Edward G. Awere, Jack Passmore and Peter S. White, pp 299 DOI:10.1039/DT9930000299

EQNMR: a computer program for the calculation of stability constants from nuclear magnetic resonance chemical shift data Michael J. Hynes, pp 311 DOI:10.1039/DT9930000311

The reactions of zinc(II) with 1,3-diketones in aqueous solution. Catalysis by cacodylic acid during complex formation Michael J. Hynes, Marie T. Mooney and Ann Moloney, pp 313 DOI:10.1039/DT9930000313

Database analysis of Au Au interactions Swaroop S. Pathaneni and Gautam R. Desiraju, pp 319 DOI:10.1039/DT9930000319

Raman characterization of charge-transfer transitions in ligand-bridged binuclear polypyridyl complexes of ruthenium(II) Mohammad K. Nazeeruddin, Michael Grätzel, Kuppuswamy Kalyanasundaram, Reuben B. Girling and Ronald E. Hester, pp 323 DOI:10.1039/DT9930000323

Mono- and bi-dentate carboxylato complexes of ruthenium(IV) Brian Kavanagh, Jonathan W. Steed and Derek A. Tocher, pp 327 DOI:10.1039/DT9930000327

Addition of a carbonyl functionality to titanium carbenes. A study of the mechanism and intermediates in the Tebbe reaction Birgit Schiøtt and Karl Anker Jørgensen, pp 337 DOI:10.1039/DT9930000337

Spectrochemistry of solutions. Part 25. Cyano-complexation of nickel(II), palladium(II) and platinum(II) in liquid ammonia Peter Gans, J. Bernard Gill and Lawrence H. Johnson, pp 345 DOI:10.1039/DT9930000345

Dalton communications. Electron-transfer reactions in iridium(III) dialkyl complexes: activation of C-H bonds on oxidation of [IrMe2(5-C5Me5)(PR3)](R = Ph or Me) Pietro Diversi, Stefania Iacoponi, Giovanni Ingrosso, Franco Laschi, Antonio Lucherini and Piero Zanello, pp 351 DOI:10.1039/DT9930000351

(p-Anisaldehyde thiosemicarbazonato)dimethylthallium(III): an unusual structure for a co-ordinated thiosemicarbazone José S. Casas, Eduardo E. Castellano, Alejandro Macías, María C. Rodríguez-Argüelles, Agustín Sánchez and José Sordo, pp 353 DOI:10.1039/DT9930000353

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viib

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX007

Issue 3

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX009

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP013

Synthesis and reactions with alkynes of complexes containing both phosphorus and sulfur bridging ligands: crystal and molecular structures of [Mn2(µ-PPh2)(µ-SPh)(CO)8], [CO3(µ3-S)(µ-PPh2)(CO)6(PPh3)] and [CO3(µ3-S)(µ-PPh2CHCPh)(CO)6(PPh3)] Andrew J. Edwards, Avelino Martían, Martin J. Mays, David Nazar, Paul R. Raithby and Gregory A. Solan, pp 355 DOI:10.1039/DT9930000355

Group 15-azamacrocyclic chemistry. Reactions of 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane (L) with MCl3(M = As or Sb): crystal and molecular structures of [H2L][As4O2Cl10] and [H2L][Sb2OCl6] Gerald R. Willey, Abdul Asab, Miles T. Lakin and Nathaniel W. Alcock, pp 365 DOI:10.1039/DT9930000365

The reaction of bromo- and iodo-phosphoranes with unactivated coarse grain manganese metal powder to yield [MnI2(phosphine)2] and [{MnX2(phosphine)}n](X = Br or I) by insertion of Mn into the P-X bond. The crystal structure of [MnI2(PPh3)2] Stephen M. Godfrey, Charles A. McAuliffe and Robin G. Pritchard, pp 371 DOI:10.1039/DT9930000371

Thermodynamic study of steric effects on the formation of tetrahedral pyridine-base complexes of cadmium(II) halides Kiyoshi Sawada, Keiichi Satoh, Chikako Honda, Tomoe Ishiyama and Toshio Suzuki, pp 377 DOI:10.1039/DT9930000377

Synthesis and characterisation of permethylindenyl complexes of cobalt and chromium: crystal structures of [Cr(5-C9Me7)2], [Co(5-C9Me7)2][PF6] and [Cr(5-C9Me7)2][PF6] Dermot O'Hare, Vince J. Murphy and Nikolas Kaltsoyannis, pp 383 DOI:10.1039/DT9930000383

Complexes of the platinum metals. Part 42. Binuclear N,O-succinimido-bridged ruthenium(II) derivatives: crystal structure of [Ru2(µ-Cl)(µ-H)(µ-C4H4NO2)2(PPh3)4]·2CH2Cl2·0.5H2O Arvind Sahajpal, Stephen D. Robinson, Michael B. Hursthouse and Muhammed A. Mazid, pp 393 DOI:10.1039/DT9930000393

Nickel(II) and cobalt(II) complexes of potentially quinquedentate macrobicyclic ligands. Reversible binding of dioxygen to a cobalt(II) complex James H. Cameron and Elinor L. Scott, pp 397 DOI:10.1039/DT9930000397

Photochemical synthesis and characterization of linkage isomers of (2,4-dithiouracilato-N,S)bis(ethane-1,2-diamine or propane-1,3-diamine)cobalt(III) complexes Kazuaki Yamanari, Yoshinori Kushi, Akira Fuyuhiro and Sumio Kaizaki, pp 403 DOI:10.1039/DT9930000403

Synthesis, molecular structure, and magnetic properties of a Cu2Gd complex Cristiano Benelli, Antonio C. Fabretti and Aleardo Giusti, pp 409 DOI:10.1039/DT9930000409

Synthetic, electrochemical and spectroelectrochemical studies of oxygen-bridged bimetallic molybdenum species Sean L. W. McWhinnie, Steven M. Charsley, Christopher J. Jones, Jon A. McCleverty and Lesley J. Yellowlees, pp 413 DOI:10.1039/DT9930000413

Oxidation of 1,1-bis(methoxycarbonyl)ferrocene by hexakis(N,N-dimethylformamide)iron(III) perchlorate in acetonitrile Rudolf Jedlicka, Karl Kirchner and Roland Schmid, pp 417 DOI:10.1039/DT9930000417

Relationships between computed and experimentally determined molecular volumes and radii D. Michael P. Mingos, Andrew L. Rohl and John Burgess, pp 423 DOI:10.1039/DT9930000423

Bonding in clusters. Part 12. A reinterpretation of the bonding of arachno-boranes Michael J. Moore and Paul Brint, pp 427 DOI:10.1039/DT9930000427

Synthesis, characterization and electronic structure of trinuclear complexes possessing a hexathiolatomolybdenum(IV) or hexaselenolatotungsten(IV) core P. Michael Boorman, Heinz-Bernhard Kraatz, Masood Parvez and Tom Ziegler, pp 433 DOI:10.1039/DT9930000433

Sterically crowded aryloxide compounds of aluminium: hydrides and homoleptic aryloxides Matthew D. Healy, Mark R. Mason, Philip W. Gravelle, Simon G. Bott and Andrew R. Barron, pp 441 DOI:10.1039/DT9930000441

Impact of aluminium ions on adriamycin-type ligands Elene Pereira, Marina M. L. Fiallo, Arlette Garnier-Suillerot, Tamas Kiss and Henryk Kozowski, pp 455 DOI:10.1039/DT9930000455

The synthesis and reactivity of a new technetium(III) precursor. The crystal structures of [TcCl3(MeCN){P(C6H4Me-3)3}2] and [Tc(bipy)3]2+(bipy = 2,2-bipyridine) Colin M. Archer, Jonathan R. Dilworth, Russell M. Thompson, Mary McPartlin, David C. Povey and J. Duncan Kelly, pp 461 DOI:10.1039/DT9930000461

A luminescent tetrameric zinc(II) complex containing the 7-azaindolate ligand. Photophysical properties and crystal structure Chor-Fain Lee, Kwok-Fai Chin, Shie-Ming Peng and Chi-Ming Che, pp 467 DOI:10.1039/DT9930000467

Solving simple organometallic structures solely from X-ray powder diffraction data: the case of polymeric [{Ru(CO)4}n] Norberto Masciocchi, Massimo Moret, Paolo Cairati, Fabio Ragaini and Angelo Sironi, pp 471 DOI:10.1039/DT9930000471

Organometallic chemistry of diphosphazanes. Part 7. Platinum(II), palladium-(o), -(I) and -(II) complexes of RN[P(OPh)2]2(R = Me or Ph) Maravanji S. Balakrishna, Setharampattu S. Krishnamurthy, Ramaswamy Murugavel, Munirathinam Nethaji and Irimpan I. Mathews, pp 477 DOI:10.1039/DT9930000477

Dalton communications. The first dinuclear µ-hexafluorosilicato copper(II) compound. Synthesis and crystal structure of (µ-hexafluorosilicato-F:F)-bis[aqua(N3-salicyloylpyridine-2-carboxamidrazonato-3N,N2,O)copper(II)] dihydrate Petra J. van Koningsbruggen, Jaap G. Haasnoot, Rudolf A. G. de Graaff and Jan Reedijk, pp 483 DOI:10.1039/DT9930000483

Synthesis, structure and electrochemistry of [Pd([9]aneNS2)2]-[BF4]2([9]aneNS2= 1,4-dithia-7-azacyclononane) Alexander J. Blake, Rhona D. Crofts, Broer de Groot and Martin Schröder, pp 485 DOI:10.1039/DT9930000485

Oligomerisation of alkynes at a diruthenium centre Lucy A. Brady, Andrew F. Dyke, Stephanie E. Garner, Selby A. R. Knox, Anne Irving, Sara M. Nicholls and A. Guy Orpen, pp 487 DOI:10.1039/DT9930000487

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viic

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX011

Issue 4

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX013

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP019

Metallation of multifunctional secondary amines: the structural characterisation of the tripodal lithium amides {H3CC[CH2N(Li)R]3}3 Lutz H. Gade and Norbert Mahr, pp 489 DOI:10.1039/DT9930000489

Synthesis and characterization of silazoxy metallacycles Anil J. Elias, Herbert W. Roesky, Ward T. Robinson and George M. Sheldrick, pp 495 DOI:10.1039/DT9930000495

Synthesis, structure and reactivity of tri- and penta-hapto-bonded cycloheptadienyl complexes of molybdenum Roy L. Beddoes, Jonathan R. Hinchliffe and Mark W. Whiteley, pp 501 DOI:10.1039/DT9930000501

Structure, spectroscopic and angular-overlap studies of tris(pyrazol-1-yl)methane complexes Timothy Astley, Jacqueline M. Gulbis, Michael A. Hitchman and Edward R. T. Tiekink, pp 509 DOI:10.1039/DT9930000509

Thermocatalytic dehydrogenation of alkanes with Wilkinson complexes Takahiro Fujii, Yoshifusa Higashino and Yasukazu Saito, pp 517 DOI:10.1039/DT9930000517

Structural isomerism in silver thioether macrocyclic chemistry: the synthesis, redox properties and crystal structures of [Agn([15]aneS5)n][PF6]n[Ag2([15]aneS5)2][BPh4]2 and [Ag([15]aneS5)][B(C6F5)4]([15]aneS5= 1,4,7,10,13-pentathiacyclopentadecane) Alexander J. Blake, David Collison, Robert O. Gould, Gillian Reid and Martin Schröder, pp 521 DOI:10.1039/DT9930000521

Structural systematics. Part 5. Conformation and bonding in the chiral metal complexes [M(5-C5R5)(XO)Z(PPh3)] Stephanie E. Garner and A. Guy Orpen, pp 533 DOI:10.1039/DT9930000533

Binding of molybdenum-iron-sulfur clusters by amino acid esters J. Elaine Barclay, David J. Evans, G. Jeffery Leigh and J. Bernardo Parra-Soto, pp 543 DOI:10.1039/DT9930000543

Synthesis and crystal structures of a series of amide copper(II) complexes El Houssine Alilou, Edith Amadei, Michel Giorgi, Marcel Pierrot and Marius Réglier, pp 549 DOI:10.1039/DT9930000549

The heteronuclear cluster chemistry of the Group IB metals. Part 16. Metal exchange reactions in Group IB metal heteronuclear cluster compounds. Synthesis and structural characterization of the trimetallic hexanuclear cluster compounds [MMRu4(µ3-H)2{µ-Ph2P(CH2)nPPh2}(CO)12](M = Cu, M= Ag or Au; M = Ag, M= Au; n= 1 or 2) and X-ray crystal structure of [AuCuRu4(µ3-H)2{µ-Ph2P(CH2)2PPh2}(CO)12] Scott S. D. Brown, Ian D. Salter and Trushar Adatia, pp 559 DOI:10.1039/DT9930000559

Complex formation followed by internal electron transfer: the reaction of [ethylenebis(biguanide)]silver(III) with ascorbic acid Subrata Dasgupta, Erwin Herlinger and Wolfgang Linert, pp 567 DOI:10.1039/DT9930000567

Preparation and spectroscopic, electrochemical and photophysical properties of mono-, di-nuclear and mixed-valence species derived from the photosensitizing group (2,2-bipyridine)(2,2:6,2-terpyridine)ruthenium(II) Florencia Fagalde and Néstor E. Katz, pp 571 DOI:10.1039/DT9930000571

Hydrothermal synthesis and structural characterisation of SrFe3(PO4)3(HPO4), an iron(III) phosphate containing FeO5 trigonal bipyramids and dimers of face-sharing FeO6 octahedra Kwang-Hwa Lii, Teng-Yuan Dong, Chih-Yi Cheng and Sue-Lein Wang, pp 577 DOI:10.1039/DT9930000577

Synthesis, reactions and catalytic activities of iridium complexes intercalated into montmorillonite Chong Shik Chin, Byeongno Lee, Ilye Yoo and Tae-Hyun Kwon, pp 581 DOI:10.1039/DT9930000581

Cymantrenylmethylidyne, C-C5H4Mn(CO)3 as a bridging ligand for polymetallic assembly Stephen Anderson and Anthony F. Hill, pp 587 DOI:10.1039/DT9930000587

Dinuclear manganese(II) complexes of 2,6-Bis[2-(dialkylamino)ethyliminomethyl]-4-methylphenolate(1-): synthesis, structure, and magnetism Hiroshi Sakiyama, Hiroko Tamaki, Masahito Kodera, Naohide Matsumoto and Hisashi kawa, pp 591 DOI:10.1039/DT9930000591

2,2:6,2-Terpyridine (terpy) acting as a fluxional bidentate ligand. Part 2. Rhenium carbonyl halide complexes, fac-[ReX(CO)3(terpy)](X = Cl, Br or I): NMR studies of their solution dynamics, synthesis of cis-[ReBr(CO)2(terpy)] and the crystal structure of [ReBr(CO)3(terpy)] Edward W. Abel, Valentin S. Dimitrov, Nicholas J. Long, Keith G. Orrell, Anthony G. Osborne, Helen M. Pain, Vladimir ik, Michael B. Hursthouse and Mohammed A. Mazid, pp 597 DOI:10.1039/DT9930000597

Co-ordination of (o-aminophenyl)diphenylphosphine in complexes containing the [Mv= O]3+(M = Tc or Re) core Fiorenzo Refosco, Francesco Tisato, Giuliano Bandoli, Cristina Bolzati, Alessandro Dolmella, Anna Moresco and Marino Nicolini, pp 605 DOI:10.1039/DT9930000605

Reactions of some ortho-tellurated compounds with intramolecular co-ordinate bonds Anatoly G. Maslakov, William R. McWhinnie, Michael C. Perry, Nirmala Shaikh, Sean L. W. McWhinnie and Thomas A. Hamor, pp 619 DOI:10.1039/DT9930000619

Synthesis, characterization and crystal structures of 1,7-dioxa-4-thia-10-azacyclododecane ([12]aneNO2S) and [Hg([12]aneNO2S)(NO3)2] Karl A. Byriel, Lawrence R. Gahan, Colin H. L. Kennard and Christopher J. Sunderland, pp 625 DOI:10.1039/DT9930000625

Synthesis and properties of a new series of bis(macrocyclic) dicopper(II,II), dinickel(II,II) and dinickel(III,III) complexes based on the 14-membered pentaaza unit Sergey V. Rosokha, Yaroslaw D. Lampeka and Igor M. Maloshtan, pp 631 DOI:10.1039/DT9930000631

Structural studies on phenyl bismuth halides and halogenoanions. Part 2. X-Ray crystal structures of [BiPhCl2(thf)](thf = tetrahydrofuran), [NBun4]2[Bi2Ph2Br6] and [NEt4][BiPh2I2] William Clegg, R. John Errington, George A. Fisher, Richard J. Flynn and Nicholas C. Norman, pp 637 DOI:10.1039/DT9930000637

Preparation and intramolecular electron-transfer rate constant for the ruthenium-modified selenium-substituted [4Fe-4Se] high-potential protein from Chromatium vinosum and related studies K. Govindaraju, Jean-Marc Moulis, G. Arthur Salmon and A. Geoffrey Sykes, pp 643 DOI:10.1039/DT9930000643

Dalton communications. Synthesis and characterization of [Li(OEt2)3][Co2(SC6H2Pri3-2,4,6)5]: a compound with a face-sharing ditetrahedral structure Karin Ruhlandt-Senge and Philip P. Power, pp 649 DOI:10.1039/DT9930000649

Syntheses, spectroscopy and electrochemistry of nitridorhenium(V) organometallics. X-Ray crystal structure of [ReVNMe2(PPh3)2] Vivian Wing-Wah Yam, Kwok-Kwong Tam and Ting-Fong Lai, pp 651 DOI:10.1039/DT9930000651

Luminescent three-co-ordinated dinuclear copper(I) complexes of bis(diphenylphosphino)methane: photophysical properties and crystal structure Dan Li, Chi-Ming Che, Wing-Tak Wong, Shen-Jye Shieh and Shie-Ming Peng, pp 653 DOI:10.1039/DT9930000653

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viid

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX015

Issue 5

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX017

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP025

Low-temperature syntheses of vanadium(III) and molybdenum(IV) bromides by halide exchange Fausto Calderazzo, Cäcilie Maichle-Mössmer, Guido Pampaloni and Joachim Strähle, pp 655 DOI:10.1039/DT9930000655

Preparation and crystal structure of [WCl2(cp)2]+2[W4F18]2-(cp =-C5H5) containing the new binary tungsten(IV) fluoride anion [W4F18]2- T. Stanley Cameron, Thomas M. Klapötke, Axel Schulz and Jussi Valkonen, pp 659 DOI:10.1039/DT9930000659

Synthesis and crystal structures of (CF3)2As-NPPh3, [Os3(CO)11{(CF3)2AsNPPh3}] and [Os3(µ-H)2(CO)9{(CF3)2AsNPPh3}] How Ghee Ang, Whei Lu Kwik, Yiew Wang Lee and Arnold L. Rheingold, pp 663 DOI:10.1039/DT9930000663

1-Methylcytosine and cytidine complexes of platinum(II) stabilized by trimethylphosphine. Synthesis and characterization Guendalina Trovó, Giovanni Valle and Bruno Longato, pp 669 DOI:10.1039/DT9930000669

Photochemical reduction of cerium(IV) porphyrin sandwich complexes Stanislaw Radzki and Charles Giannotti, pp 675 DOI:10.1039/DT9930000675

Metal-metal interactions across symmetrical bipyridyl bridging ligands in binuclear seventeen-electron molybdenum complexes Amitava Das, John P. Maher, Jon A. McCleverty, Jon A. Navas Badiola and Michael D. Ward, pp 681 DOI:10.1039/DT9930000681

Syntheses and molecular structures of copper(II) complexes with 1,3,5-tris(pyrazol-1-ylmethyl)benzene Wen-Kuen Chang, Shiann-Cherng Sheu, Gene-Hsiang Lee, Yu Wang, Tong-Ing Ho and Yuan-Chuan Lin, pp 687 DOI:10.1039/DT9930000687

Dioxygen addition to cobalt(II) complexes with a binucleating macrocyclic ligand Andrea Bencini, Antonio Bianchi, Sergio Cabani, Norberto Ceccanti, Piero Paoletti and Maria R. Tinè, pp 695 DOI:10.1039/DT9930000695

Synthesis and characterisation of cyclopentadienylcobalt and pentamethylcyclopentadienylcobalt diselenolenes Christopher P. Morley and Richard R. Vaughan, pp 703 DOI:10.1039/DT9930000703

A lanthanide-templated Schiff-base condensation reaction to give a trinuclear macrocyclic complex Helen C. Aspinall, Jane Black, Ian Dodd, Marjorie M. Harding and Stephen J. Winkley, pp 709 DOI:10.1039/DT9930000709

Formation and reactions of mono- and di-substituted derivatives of [µ4-Ge{CO2(CO)7}2], containing functional µ-GeRH or µ-GeRCl groups Siew Kim Lee, Kenneth M. Mackay and Brian K. Nicholson, pp 715 DOI:10.1039/DT9930000715

Reactivity of the [ReNR]3+ and [ReN]2+ cores toward bis(diphenylphosphino)amine and its derivatives. Synthesis and crystal structures Roberto Rossi, Andrea Marchi, Lorenza Marvelli, Luciano Magon, Maurizio Peruzzini, Umberto Casellato and Rodolfo Graziani, pp 723 DOI:10.1039/DT9930000723

Pulse-radiolysis studies on the oxidised form of the multicopper enzyme ascorbate oxidase: evidence for two intramolecular electron-transfer steps Panayotis Kyritsis, Albrecht Messerschmidt, Robert Huber, G. Arthur Salmon and A. Geoffrey Sykes, pp 731 DOI:10.1039/DT9930000731

Preparation, structure and properties of dinuclear, trinuclear incomplete cuboidal and cuboidal molybdenum-selenium cluster complexes Mohamed Nasreldin, Gerald Henkel, Gunnar Kampmann, Bernt Krebs, Gert J. Lamprecht, Carol A. Routledge and A. Geoffrey Sykes, pp 737 DOI:10.1039/DT9930000737

Kinetics of substitution of H2O by NCS- on µ-selenido incomplete cuboidal MIV3 clusters [Mo3OxSe4-x(H2O)9]4+ and on [Mo4Se4(H2O)12]5+ Gert J. Lamprecht, Manuel Martinez, Mohamed Nasreldin, Carol A. Routledge, Najat Al-Shatti and A. Geoffrey Sykes, pp 747 DOI:10.1039/DT9930000747

Structure of tin(IV) complexes of 2-(2-selenidophenyl)imino-methylphenols formed by electrochemical cleavage of a diselenide bond Elena Labisbal, Jaime Romero, María L. Durán, José A. García-Vázquez, Antonio Sousa, Umberto Russo, Robin Pritchard and Marcel Renson, pp 755 DOI:10.1039/DT9930000755

Charge-transfer photoluminescence of polyoxo-tungstates and -molybdates Toshihiro Yamase and Moriyasu Sugeta, pp 759 DOI:10.1039/DT9930000759

Solution studies on the triangular incomplete cuboidal dimolybdenum-tungsten cluster aqua ion [Mo2W(µ3-O)(µ-O)3(OH2)9]4+; crystal structure of [NMe4]5[Mo2W(µ3-O)(µ-O)3(NCS)9]·C6H5Me Ayyub Patel, Shehla Siddiqui, David T. Richens, Mary E. Harman and Michael B. Hursthouse, pp 767 DOI:10.1039/DT9930000767

A new polydentate hydrazonic ligand and its dinuclear copper(II) complex with different co-ordination environments Alessia Bacchi, Luigi Pietro Battaglia, Mauro Carcelli, Corrado Pelizzi, Giancarlo Pelizzi, Costantino Solinas and Maria Antonietta Zoroddu, pp 775 DOI:10.1039/DT9930000775

Reactions of tert-butyl isocyanate and trimethylsilyl azide with imidoamido compounds of chromium, molybdenum and tungsten Hon-Wah Lam, Geoffrey Wilkinson, Bilquis Hussain-Bates and Michael B. Hursthouse, pp 781 DOI:10.1039/DT9930000781

Chromium(II) amides: synthesis and structures Jilles J. H. Edema, Sandro Gambarotta, Auke Meetsma, Anthony L. Spek, Wilberth J. J. Smeets and Michael Y. Chiang, pp 789 DOI:10.1039/DT9930000789

Redox potentials of vanadium-containing couples. Part 3. The formal redox potential of the V3+-V2+ couple Michel Fiore, Santino Orecchio, Vincenzo Romano and Roberto Zingales, pp 799 DOI:10.1039/DT9930000799

Structure and dynamics of solid tris(trimethylsilyl)amine by deuterium nuclear magnetic resonance spectroscopy Glenn H. Penner and James M. Polson, pp 803 DOI:10.1039/DT9930000803

Synthesis and crystal structure of a quinolinolato-complex of dicyclopentylgallim Wen-Tian Tao, Ying Han, Yao-Zeng Huang, Xiang-Lin Jin and Jie Sun, pp 807 DOI:10.1039/DT9930000807

Dalton communications. Synthesis and structure of a stable selenodiimide complex Jidith Gindl, Már Björgvinsson, Herbert W. Roesky, Cristina Freire-Erdbrügger and George M. Sheldrick, pp 811 DOI:10.1039/DT9930000811

A novel class of polyphosphorus donor ligands based on a calix[n]arene skeleton: structural characterization of a dinuclear iron(O) complex Denis Jacoby, Carlo Floriani, Angiola Chiesi-Villa and Corrado Rizzoli, pp 813 DOI:10.1039/DT9930000813

Photoluminescent properties and crystal structure of a metal-perturbed donor-acceptor acetylene complex Xiao Hong, Hon-Kay Yip, Kung-Kai Cheung and Chi-Ming Che, pp 815 DOI:10.1039/DT9930000815

Synthesis, characterization and properties of novel covalently linked binuclear ruthenium(II) and trinuclear ruthenium(II)-copper(I) bipyridyl complexes Vincent Grosshenny and Raymond Ziessel, pp 817 DOI:10.1039/DT9930000817

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viie

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX019

Issue 6

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX021

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP031

Synthesis and reactivity of the silylated triphosphites [(R1O)2PO]3SiR2(R1= Me or Et; R2= Me, Ph or CHCH2). Crystal structure of fac-[Mo(CO)3{P,P,P-[P(OMe)2O]3SiMe}] Nigel Greene, Helen Taylor, Terence P. Kee and Mark Thornton-Pett, pp 821 DOI:10.1039/DT9930000821

Reactions of the co-ordinatively unsaturated cluster [Os3(µ-H)(CO)8{Ph2PCH2P(Ph)C6H4}] with alkynes RCCR (R = Ph, C6H4Me, Me or CF3); crystal structures of [Os3(CO)8{µ3-2()-RC2R}(Ph2PCH2PPh2)](R = Me or CF3) and electrochemical behaviour of triosmium-alkyne clusters Michael P. Brown, P. Ann Dolby, Marjorie M. Harding, A. Jane Mathews, Anthony K. Smith, Domenico Osella, Mauro Arbrun, Roberto Gobetto, Paul R. Raithby and Piero Zanello, pp 827 DOI:10.1039/DT9930000827

Electrochemistry of chlorinated ferrocenes: stability of chlorinated ferrocenium ions Kylie N. Brown, Peter T. Gulyas, Peter A. Lay, Neale S. McAlpine, Anthony F. Masters and Leonidas Phillips, pp 835 DOI:10.1039/DT9930000835

Complexation of captopril with gold(I) and its exchange reactions with thiomalate and cyanide Anvarhusein A. Isab, Ibrahim Ghazi and Abdul Rahman Al-Arfaj, pp 841 DOI:10.1039/DT9930000841

Reactions of perfluoroalkyl-substituted phosphines with osmium carbonyl clusters: crystal structures of bridged, linked and substituted derivatives How-Ghee Ang, Cheng-Heng Koh, Lip-Lin Koh, Whei-Lu Kwik, Weng-Kee Leong and Weng-Yuen Leong, pp 847 DOI:10.1039/DT9930000847

Photophysical properties, electrochemistry and crystal structure of nitridoosmium(VI) complexes of 2,3-diamino-2,3-dimethylbutane Chi-Ming Che, Kwok-Yin Wong, Hon-Wah Lam, Kwok-Fai Chin, Zhong-Yuan Zhou and Thomas C. W. Mak, pp 857 DOI:10.1039/DT9930000857

Mono- and tetra-nuclear manganese(III) complexes of tripodal tris[2-(salicylideneamino)ethyl]amines Swapan Kumar Chandra, Partha Chakraborty and Animesh Chakravorty, pp 863 DOI:10.1039/DT9930000863

Copper-63,65 nuclear quadrupole resonance of complexes of copper(I) halides with phosphorus-containing ligands Sundara Ramaprabhu, Nahid Amstutz, Edwin A. C. Lucken and Gérald Bernardinelli, pp 871 DOI:10.1039/DT9930000871

Tertiary phosphine adducts of [W2(µ-O2CBut)4]. Crystal structure of [W2(µ-O2CBut)3(O2CBut)(PMe2Ph)2] Philip Mountford and J. A. Gareth Williams, pp 877 DOI:10.1039/DT9930000877

Charge-transfer interactions between bipyridinium ions and octacyano-molybdates and -tungstates Nathaniel W. Alcock, Alina Samotus and Janusz Szklarzewicz, pp 885 DOI:10.1039/DT9930000885

Kinetics of reduction of [Os(CN)6]3- ion by ascorbic acid and substituted 1,2- and 1,4-dihydroxybenzenes in acidic media. Effects of -cyclodextrin inclusion of the reductant Jerome A. Imonigie and Donal H. Macartney, pp 891 DOI:10.1039/DT9930000891

Technetium diazenido complexes. Part 1. Syntheses and structures of [TcCl(NNC6H4Cl-4)2(PPh3)2] and [TcCl(NNPh)(Ph2PCH2CH2PPh2)2][PF6]·H2O Colin M. Archer, Jonathan R. Dilworth, Panna Jobanputra, Russell M. Thompson, Mary McPartlin and Wolfgang Hiller, pp 897 DOI:10.1039/DT9930000897

Synthesis and magnetostructural characterization of dinuclear copper(II) complexes with the diazine ligand, 3,6-bis(di-2-pyridylmethyl)pyridazine Jorge Manzur, Ana María García, Ricardo Letelier, Evgenia Spodine, Octavio Peña, Daniel Grandjean, Marilyn M. Olmstead and Bruce C. Noll, pp 905 DOI:10.1039/DT9930000905

Synthesis and structural studies of tetraaquacopper(II) diaquabis(malonato)cuprate(II) Debashis Chattopadhyay, Shyamal K. Chattopadhyay, Phillip R. Lowe, Carl H. Schwalbe, Sunil K. Mazumder, Arindam Rana and Saktiprosad Ghosh, pp 913 DOI:10.1039/DT9930000913

Mixed-ligand complexes involving sulfur-containing ligands. Part 1. Nickel(II) ternary complexes of L-cysteine, D-penicillamine and L-cysteic acid with imidazoles M. Sivasankaran Nair, P. Thillai Arasu, M. Sankaranarayana Pillai and Chidambaram Natarajan, pp 917 DOI:10.1039/DT9930000917

Dinitrogen and related compounds of molybdenum with the tripodal phosphines N(CH2CH2PPh2)3 or P(CH2CH2PPh2)3 as coligands María J. Fernández-Trujillo, Manuel G. Basallote, Pedro Valerga and María C. Puerta, pp 923 DOI:10.1039/DT9930000923

A new iron(III) ion sequestering ligand: synthesis, solution chemistry and electrochemistry M. Amélia Santos, M. Alexandra Esteves, M. Cândida T. Vaz and M. L. S. Simões Gonçalves, pp 927 DOI:10.1039/DT9930000927

Oxidation of sulfur(IV) by tris(acetylacetonato)manganese(III) and its hydrolytic derivatives: possible examples of substitution-controlled redox processes Subrata Mukhopadhyay and Rupendranath Banerjee, pp 933 DOI:10.1039/DT9930000933

Interaction of metal ions with the antihyperuricemic drug allopurinol (H2L): synthesis and crystal structure of dimeric [Zn2(µ-HL)2Cl2(H2O)2] Gaby Hänggi, Helmut Schmalle and Erich Dubler, pp 941 DOI:10.1039/DT9930000941

Synthesis and reactivity of the unsaturated diruthenium diphosphazane-bridged species [Ru2(CO)4{µ-(RO)2PN(Et)P(OR)2}2](R = Me or Pri) John S. Field, Raymond J. Haines, Mark W. Stewart, Jörg Sundermeyer and Stephen F. Woollam, pp 947 DOI:10.1039/DT9930000947

Conversion of nitriles into 2-1,3-oxazolines in platinum(II) complexes. Crystal structure of trans-[PtCl2{NC(But)OCH2CH2}2] Rino A. Michelin, Roberta Bertani, Mirto Mozzon, Gabriella Bombieri, Franco Benetollo and Robert J. Angelici, pp 959 DOI:10.1039/DT9930000959

Electrochemical studies of some dithiadiazolylium cations; evidence for the dithiadiazolide anion, [PhCNSSN]- Christine M. Aherne, Arthur J. Banister, Ian B. Gorrell, Michael I. Hansford, Zdenek V. Hauptman, Anthony W. Luke and Jeremy M. Rawson, pp 967 DOI:10.1039/DT9930000967

Synthesis and characterisation of novel phosphido- and selenido-substituted ruthenium carbonyl clusters Brian F. G. Johnson, Teresa M. Layer, Jack Lewis, Paul R. Raithby and Wing-Tak Wong, pp 973 DOI:10.1039/DT9930000973

New synthetic routes to [M3(CO)9(µ3-2:2:2-C6H6)](M = Ru or Os) Alexander J. Blake, Paul J. Dyson, Brian F. G. Johnson, Caroline M. Martin, Jacqueline G. M. Nairn, Emilio Parisini and Jack Lewis, pp 981 DOI:10.1039/DT9930000981

Synthesis and structural characterization of diene and benzene pentaruthenium clusters Dario Braga, Fabrizia Grepioni, Piera Sabatino, Paul J. Dyson, Brian F. G. Johnson, Jack Lewis, Philip J. Bailey, Paul R. Raithby and Dietmar Stalke, pp 985 DOI:10.1039/DT9930000985

Lanthanum complexes with the bis(o-methoxyphenyl)phosphide ligand Helen C. Aspinall, Samantha R. Moore and Anthony K. Smith, pp 993 DOI:10.1039/DT9930000993

Dalton communications. Structure of the [SbI4{Me2P(CH2)2PMe2}]- anion: structural evidence for an arrested double SN2 substitution William Clegg, Mark R. J. Elsegood, Victoria Graham, Nicholas C. Norman and Nigel L. Pickett, pp 997 DOI:10.1039/DT9930000997

A substituted hexaosmium hydrido cluster with benzene ligands in two different bonding modes; synthesis and structural characterisation of [Os6H2(CO)11(6-C6H6)(µ3-2:2:2-C6H6)] Jack Lewis, Chi-Keung Li, Paul R. Raithby and Wing-Tak Wong, pp 999 DOI:10.1039/DT9930000999

Syntheses, crystal structures and photophysics of organogold(III) diimine complexes Vivian Wing-Wah Yam, Sam Wing-Kin Choi, Ting-Fong Lai and Wai-Kit Lee, pp 1001 DOI:10.1039/DT9930001001

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viif

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX023

Issue 7

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX025

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP037

Synthesis and X-ray characterisation of some heterometallic Hg-M complexes with 2-oxazolidone Louisa H. Carrad, David M. L. Goodgame, Stuart P. W. Hill and David J. Williams, pp 1003 DOI:10.1039/DT9930001003

Determination of aluminium electronegativity in new ambient-temperature acidic molten salts based on 3-butyl-1-methylimidazolium chloride and ALEt3-xClx(x= 0-3) by 1H nuclear magnetic resonance spectroscopy Yves Chauvin, Françoise Di Marco-Van Tiggelen and Hélène Olivier, pp 1009 DOI:10.1039/DT9930001009

Ligand design and metal-ion recognition. The interaction of copper(II) with a range of 16- to 19-membered macrocycles incorporating oxygen, nitrogen and sulfur donor atoms Kenneth R. Adam, Michael Antolovich, Darren S. Baldwin, Paul A. Duckworth, Anthony J. Leong, Leonard F. Lindoy, Mary McPartlin and Peter A. Tasker, pp 1013 DOI:10.1039/DT9930001013

Kinetic studies of the base hydrolysis of cobalt(III) chloropentamine complexes containing (triamine)(diamine) chromophores Beth R. Cameron, Donald A. House and Alexander McAuley, pp 1019 DOI:10.1039/DT9930001019

Complex formation between nickel(II) and some pentamine(substituted salicylato)cobalt(III) ions Anadi C. Dash, Rabindra K. Nanda and Achyuta N. Acharya, pp 1023 DOI:10.1039/DT9930001023

Formation of iridium fluoroacyl complexes by reaction of iridium carbonyls with XeF2 and reactions of these to generate unusual acyl complexes E. A. V. Ebsworth, Neil Robertson and Lesley J. Yellowlees, pp 1031 DOI:10.1039/DT9930001031

Synthesis and reactions of alkyne complexes [MoCl(GeCl3)-(CO)(NCMe)(PPh3)(2-RC2R)](R = Me or Ph) containing six different monodentate ligands Paul K. Baker and Dafydd ap Kendrick, pp 1039 DOI:10.1039/DT9930001039

Diglyme (C6H14O3) complexes of molybdenum and tungsten: crystal structures of [MO2Cl2(C6H14O3)](M = Mo or W) Klaus Dreisch, Carlaxel Andersson, Mikael Håkansson and Susan Jangner, pp 1045 DOI:10.1039/DT9930001045

Hydrothermal synthesis and crystal structures of Sr2V(PO4)2(H2PO4) and Sr2Fe(PO4)2(H2PO4) Kwang-Hwa Lii, Tsu-Chien Lee, Sheng-Nan Liu and Sue-Lein Wang, pp 1051 DOI:10.1039/DT9930001051

Complexation of monovalent metal ions by lariat ethers in non-aqueous solvents Theo Rodopoulos, Pierre-André Pittet and Stephen F. Lincoln, pp 1055 DOI:10.1039/DT9930001055

Impact on ligand-field theory of the real ground state for CuCl2 Robert J. Deeth, pp 1061 DOI:10.1039/DT9930001061

Kinetics and mechanism of the substitution of [(NH3)5RuIII(edta)RuIII(H2O)]2+(edta = ethylenediaminetetraacetate) by thiourea in aqueous solution Debabrata Chatterjee and Heri C. Bajaj, pp 1065 DOI:10.1039/DT9930001065

Mononuclear trigonal planar trichloroargentate(I) and tribromoargentate(I) ions isolated as their dibenzo-18-crown-6 potassium and rubidium salts Göran Helgesson and Susan Jagner, pp 1069 DOI:10.1039/DT9930001069

Reactions of [NEt4][10-endo-{Au(PPh3)}-nido-7,8-C2B9H9Me2]: carbaborane cage transfer from gold to rhodium John C. Jeffery, Paul A. Jelliss and F. Gordon A. Stone, pp 1073 DOI:10.1039/DT9930001073

Reactions of [NEt4][10-endo-{Au(PPh3)}-nido-7,8-C2B9H9Me2]: carbaborane cage transfer from gold to iridium John C. Jeffery, Paul A. Jelliss and F. Gordon A. Stone, pp 1083 DOI:10.1039/DT9930001083

A comparison of NH3, PH3, PH2, OH2 and SH as ligands in iridium(III) complexes Antony J. Deeming, Simon Doherty, Jane E. Marshall, Joy L. Powell and Andrew M. Senior, pp 1093 DOI:10.1039/DT9930001093

Formation of a µ4-methanedithiolate by transfer of two H atoms from Re to a CS2 molecule. Synthesis and crystal structure of [{Re2(µ-H)(CO)8}2(µ4-S2CH2)] Tiziana Beringhelli, Giuseppe D'Alfonso, Gianfranco Ciani, Massimo Moret and Angelo Sironi, pp 1101 DOI:10.1039/DT9930001101

Binuclear pentafluorophenyl complexes containing halide and/or bis(diphenylphosphino)methane (dppm) as bridging ligands. Molecular structure of [N(PPh3)2][Pt2(µ-I)(µ-dppm)(C6F5)4]·2CHCL3 Joe M. Casas, Larry R. Falvello, Juan Forniés, Antonio Martín and Milagros Tomás, pp 1107 DOI:10.1039/DT9930001107

Synthesis, characterization and unusual crystal structures of two cytosine cadmium(II) chloride compounds Giovanni De Munno, Silvana Mauro, Tecla Pizzino and Davide Viterbo, pp 1113 DOI:10.1039/DT9930001113

Tungsten(VI) complexes with citric acid (H4cit). Structural characterisation of Na6[{WO2(cit)}2O]·10H2O Elisa Llopis, José A. Ramírez, Antonio Doménech and Antonio Cervilla, pp 1121 DOI:10.1039/DT9930001121

Crystal structure and reactivity of [Ru{C6H4(NH)2-1,2}-(PPh3)3] with -acid ligands Adela Anillo, Cipriano Barrio, Santiago García-Granda and Ricardo Obeso-Rosete, pp 1125 DOI:10.1039/DT9930001125

On the reactions of [RuCl2(PPh3)3] with thia crown ethers: molecular structures of [RuCl2(PPh3)([9]aneS3)]([9]aneS3= 1,4,7-trithiacyclononane) and [RuCl(PPh3)([14]aneS4)]ClO4([14]aneS4= 1,4,8,11-tetrathiacyclotetradecane) Nathaniel W. Alcock, Jason C. Cannadine, George R. Clark and Anthony F. Hill, pp 1131 DOI:10.1039/DT9930001131

Effect of porphyrin ring distortion on the spectral and electrochemical properties of short-chain basket-handle porphyrins Mangalampalli Ravikanth, Damodar Reddy, Ashutosh Misra and Tavarekere K. Chandrashekar, pp 1137 DOI:10.1039/DT9930001137

Chiral quadridentate ligands based on amino acids: template syntheses and properties of the free ligands and their transition-metal complexes Jozsef Balla, Paul V. Bernhardt, Peter Buglyo, Peter Comba, Trevor W. Hambley, Reto Schmidlin, Sandra Stebler and Katalin Várnagy, pp 1143 DOI:10.1039/DT9930001143

Ligand-controlled synthesis, reactivity and oxo-transfer kinetics of oxomolybdenum-(VI) and -(IV) complexes Samiran Bhattacharjee and Ramgopal Bhattacharyya, pp 1151 DOI:10.1039/DT9930001151

Nickel-(II) and -(III) complexes with NiS4 environments: electron paramagnetic resonance and electrochemical studies Sami Mukhopadhyay and Debashis Ray, pp 1159 DOI:10.1039/DT9930001159

Dalton communications. Niobium and tantalum oxo compounds: synthesis and crystal structure of the tetranuclear tantalum(V) oxo cluster [{TaOCl2(O2CC6H4Me-p)}4] David A. Brown, William Errington and Malcolm G. H. Wallbridge, pp 1163 DOI:10.1039/DT9930001163

Additions and corrections Angelo Sironi, pp 1165 DOI:10.1039/DT9930001165

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viig

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX027

Back matter J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BP043

Issue 8

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX029

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP045

Synthesis and electrochemical characterization of ruthenium porphyrins containing a bound PF3 axial ligand Karl M. Kadish, Yu Hu, Pietro Tagliatesta and Tristano Boschi, pp 1167 DOI:10.1039/DT9930001167

Nickel complexes with heterofunctionalized phosphine ligands. Catalytic oligomerization of ethylene with [Ni(C5Ph5){Ph2PCHC(O)Ph}] Dominique Matt, Michael Huhn, Jean Fischer, André De Cian, Wolfgang Kläui, Igor Tkatchenko and Michel C. Bonnet, pp 1173 DOI:10.1039/DT9930001173

2,2-Bipyrimidine (bipym)-bridged dinuclear complexes. Part 1. Preparation, crystal structure, and magnetic properties of [Ni2(H2O)8(bipym)][NO3]4 and [Ni2(H2O)8(bipym)][SO4]2·2H2O Giovanni De Munno, Miguel Julve, Francesc Lloret and Alain Derory, pp 1179 DOI:10.1039/DT9930001179

Copper-63,65 nuclear quadrupole resonance studies of copper(I) complexes with sulfur-containing ligands. Part 2. Bis(1-alkylimidazolidine-2-thione)copper(I) iodides and related compounds Sundara Ramaprabhu, Edwin A. C. Lucken and Gérald Bernardinelli, pp 1185 DOI:10.1039/DT9930001185

Transfer hydrogenation of ketones with [Ru4H3(CO)12]- as the precatalyst Sumit Bhaduri, Krishna Sharma and Doble Mukesh, pp 1191 DOI:10.1039/DT9930001191

Synthetic and structural studies on organotransition metal-bismuth nitrates R. John Errington, Louis J. Farrugia, George A. Fisher, Anja Niklaus and Nicholas C. Norman, pp 1201 DOI:10.1039/DT9930001201

Synthesis and crystal structure of a first-generation model for the trinuclear copper site in ascorbate oxidase and of a dinuclear silver precursor Harry Adams, Neil A. Bailey, Matthew J. S. Dwyer, David E. Fenton, Paul C. Hellier, Paul D. Hempstead and Jean Marc Latour, pp 1207 DOI:10.1039/DT9930001207

Dynamic and static lattice effects in tetrachloroferrate(II) salts: their influence upon Mössbauer quadrupole splittings Elizabeth Slade, Andrew Houlton, Jack Silver, David J. Evans and G. Jeffery Leigh, pp 1217 DOI:10.1039/DT9930001217

Isomers in the merry-go-round process. Molecular versus crystal structure Dario Braga and Fabrizia Grepioni, pp 1223 DOI:10.1039/DT9930001223

Kinetics of the reaction of dichloro-trans-rac- and -cis-meso-1,2-diaminocyclohexaneplatinum(II) with pyridine Giuseppe D'Alfonso and Alessandro Pasini, pp 1231 DOI:10.1039/DT9930001231

Syntheses and structures of exo- and endo-cyclopalladated phenylhydrazones Jaume Granell, Rosa Moragas, Joaquim Sales, Mercè Font-Bardía and Xavier Solans, pp 1237 DOI:10.1039/DT9930001237

Steady-state and pulse radiolysis of some palladium(II) complexes Rajan P. Patel, Shailendra K. Kulshreshtha and Hari Mohan, pp 1245 DOI:10.1039/DT9930001245

Dimethylthallium(III) and methylmercury(II) derivatives of pyridine-2-carbaldehyde thiosemicarbazone: synthesis and structure José S. Casas, María V. Castaño, María C. Rodríguez-Argüelles, Agustín Sánchez and José Sordo, pp 1253 DOI:10.1039/DT9930001253

Eleven-vertex polyhedral monocarbaplatinaborane chemistry. Structure and fluxionality of [8,8-(PMe2Ph)2-nido-8,7-PtCB9H11] Bohumil tíbr, Tomá Jelínek, John D. Kennedy, Xavier L. R. Fontaine and Mark Thornton-Pett, pp 1261 DOI:10.1039/DT9930001261

Nine-vertex polyhedral monocarbaplatinaborane chemistry. Isolation, molecular structure and nuclear magnetic resonance properties of [6,6-(PPh3)2-arachno-6,4-PtCB7H11] Jane H. Jones, Bohumil tíbr, John D. Kennedy, Andrew D. Lawrence and Mark Thornton-Pett, pp 1269 DOI:10.1039/DT9930001269

Correlation of 13C, 15N and 59Co nuclear magnetic resonance chemical shifts with ligand-field parameters for pentacyanocobaltate(III) complexes Takashi Fujihara and Sumio Kaizaki, pp 1275 DOI:10.1039/DT9930001275

Nitrido-technetium and -rhenium complexes with chelating phosphines: synthesis, reactivity and crystal structures Andrea Marchi, Lorenza Marvelli, Roberto Rossi, Luciano Magon, Licia Uccelli, Valerio Bertolasi, Valeria Ferretti and Fabrizio Zanobini, pp 1281 DOI:10.1039/DT9930001281

Iron uptake system of some members of the genus tolypocladium: crystal structure of the ligand and its iron(III) complex Alexandr Jegorov, Vladimír Maha, Michal Huák, Bohumil Kratochvíl, Josef Stuchlík, Petr Sedmera and Vladimír Havlíek, pp 1287 DOI:10.1039/DT9930001287

Thermodynamic and spectroscopic characterization and in vitro O2- scavenger activity of copper(II) glycyl-L-histidyl-glycyl-L-histidine complexes Raffaele P. Bonomo, Francesca Bonsignore, Enrico Conte, Giuseppe Impellizzeri, Giuseppe Pappalardo, Roberto Purrello and Enrico Rizzarelli, pp 1295 DOI:10.1039/DT9930001295

Complexes of copper(II) ion with histamine-containing dipeptides: formation constants and structure Tamas Gajda, Bernard Henry and Jean-Jacques Delpuech, pp 1301 DOI:10.1039/DT9930001301

Lead(II) as a template for the synthesis of a [1 + 1] 18-membered hexadentate N4S2-donor macrocycle; crystal and molecular structure of (acetato-O,O)[3,13-dithia-6,10-diaza-1,8(2,6)-dipyridinacyclotetradecaphane-6,9-diene]lead(II) hexafluorophosphate Edwin C. Constable, Cheryl Sacht, Giuliana Palo, Derek A. Tocher and Mary R. Truter, pp 1307 DOI:10.1039/DT9930001307

Synthesis and structural studies of copper(II), nickel(II) and cobalt(II) complexes of a 14-membered trans-N2S2 dibenzo macrocycle with two pendant pyridylmethyl groups Dieter Funkemeier and Rainer Mattes, pp 1313 DOI:10.1039/DT9930001313

Synthesis and co-ordination chemistry of 2,2:4,2:6,2-quaterpyridine, an asymmetric bridging ligand with inequivalent bipyridyl binding sites Michael D. Ward, pp 1321 DOI:10.1039/DT9930001321

Anion recognition by acyclic redox-responsive amide-linked cobaltocenium receptors Paul D. Beer, Clare Hazlewood, Dusan Hesek, Jana Hodacova and Sally E. Stokes, pp 1327 DOI:10.1039/DT9930001327

Solvent isotope effect in ion-pair extraction of aqueous lanthanoid(III) picrates with a crown ether Yoshihisa Inoue, Kazuharu Nakagawa and Tadao Hakushi, pp 1333 DOI:10.1039/DT9930001333

Kinetics of ternary complex formation between nickel species and 2,2-bipyridine: parameterization of bound ligand effects David N. Hague and Andrew R. White, pp 1337 DOI:10.1039/DT9930001337

Kinetics of substitution of some bis(pentafluorophenyl)-platinum(II) complexes by 2,2-bipyridine Domenico Minniti, pp 1343 DOI:10.1039/DT9930001343

Dalton communications. Synthesis and crystal structure of [{Au2(C6H4S2-1,2)(PEt3)}2] Masami Nakamoto, Annette Schier and Hubert Schmidbaur, pp 1347 DOI:10.1039/DT9930001347

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viih

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX031

Issue 9

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX033

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP051

Dalton perspectives. The emergence of trinuclear constellations at metallobiosites David E. Fenton and Hisashi kawa, pp 1349 DOI:10.1039/DT9930001349

Synthesis, characterisation and crystal structures of a series of pentanuclear arene-substituted clusters Jack Lewis, Chi-Keung Li, M. Carmen Ramirez de Arellano, Paul R. Raithby and Wing-Tak Wong, pp 1359 DOI:10.1039/DT9930001359

Mechanism of formation of [Ag2L2I2] and crystal structure of the intermediate [Ag3L2I3] cluster (L = 1,8-diisocyano-p-menthane) Pierre D. Harvey, Marc Drouin, André Michel and Daniel Perreault, pp 1365 DOI:10.1039/DT9930001365

A novel type of twisted antiparallel double-chain structure with stacking between the two strands. Structure, synthesis and magnetic properties of [{[Cu3L2(dien)(H2O)2]·3H2O}][L = 1H-1,2,4-triazole-3,5-dicarboxylate(3-), dien = 3-Azapentane-1,5-diamine] Petra J. van Koningsbruggen, Jaap W. van Hal, Edgar Müller, Rudolf A. G. de Graaff, Jaap G. Haasnoot and Jan Reedijk, pp 1371 DOI:10.1039/DT9930001371

Synthesis, characterization and crystal structure of a binuclear molybdenum(VI) oxo complex of a dianionic tetradentate Schiff-base ligand Xuexiang Xu, Xin Wang, Haixin Liu and Xiaozeng You, pp 1377 DOI:10.1039/DT9930001377

Oxidation of elemental antimony by substituted ortho-benzoquinones Zhigang Tian and Dennis G. Tuck, pp 1381 DOI:10.1039/DT9930001381

Crystal structures and spectroscopic studies of the mononuclear complex [AgBr(PPh3)2] and binuclear [Ag2X2(PPh3)4]·2CHCl3(X = Cl or Br) J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9930001387

Synthesis and crystal structures of novel copper(I) co-ordination polymers and a hexacopper(I) cluster of quinoline-2-thione Susumu Kitagawa, Satoshi Kawata, Youich Nozaka and Megumu Munakata, pp 1399 DOI:10.1039/DT9930001399

Intercalation of a free-base porphyrin into layered tetratitanic acid Teruyuki Nakato, Yumiko Iwata, Kazuyuki Kuroda, Masao Kaneko and Chuzo Kato, pp 1405 DOI:10.1039/DT9930001405

Amides and sulfonamides: efficient molecular padlocks for the template synthesis of azacyclam (1,3,5,8,12-pentaazacyclotetradecane) macrocycles Andrés De Blas, Giancarlo De Santis, Luigi Fabbrizzi, Maurizio Licchelli, Anna Maria Manotti Lanfredi, Pierfrancesco Morosini, Piersandro Pallavicini and Franco Ugozzoli, pp 1411 DOI:10.1039/DT9930001411

Magnetic properties of hexaammineruthenium(III) trithiocyanate single crystals Antony B. Blake, Christopher D. Delfs, Lutz M. Engelhardt, Brian N. Figgis, Philip A. Reynolds, Allan H. White, Boujemaa Moubaraki and Keith S. Murray, pp 1417 DOI:10.1039/DT9930001417

Preparation and characterisation of the mixed 1,3,2,4-/1,2,3,5-dithiadiazolylium salts and related free radicals; [m- and [p-SNSNC-C6H4-CNSSN]x(x= 2+, ·+ or 2·) Arthur J. Banister, Ian Lavender, Jeremy M. Rawson, William Clegg, Brian K. Tanner and Roger J. Whitehead, pp 1421 DOI:10.1039/DT9930001421

Reactions of the heteronuclear alkyne-bridged cobalt-molybdenum complex [(OC)3Co{µ-C2(CO2Me)2}Mo(CO)2(5-C5H5)] with PPh2H, P2Ph4 and PPh2(SPh) Avelino Martín, Martin J. Mays, Paul R. Raithby and Gregory A. Solan, pp 1431 DOI:10.1039/DT9930001431

Spin delocalisation and the geometry of redox-active cyanomanganesecarbonyl ligands in heteropolynuclear complexes of rhodium(I) Francis L. Atkinson, Aristides Christofides, Neil G. Connelly, Holly J. Lawson, Andrew C. Loyns, A. Guy Orpen, Georgina M. Rosair and Gillian H. Worth, pp 1441 DOI:10.1039/DT9930001441

Molecular modelling of carboranes using distance restraints: the molecular dynamics simulation of appended thioether macrocycles John D. Holbrey, Peter B. Iveson, Joyce C. Lockhart, Nicholas P. Tomkinson, Francesc Teixidor, Antonio Romerosa, Clara Viñas and Jordi Rius, pp 1451 DOI:10.1039/DT9930001451

Dalton communications. Organic nitro compounds as ligands. A comparison between the ligand behaviour of MeNO2 and PhNO2 towards AlCl3 Maurizio Lanfranchi, Maria Angela Pellinghelli, Giovanni Predieri, Franca Bigi, Raimondo Maggi and Giovanni Sartori, pp 1463 DOI:10.1039/DT9930001463

Two triorganostannate complexes synthesised from bis(cyclopentadienyl)tin(II); structural variation between [Mg(thf)6]2+2[Sn(3-C5H5)3]- and [Li(thf)4]+[Sn(C13H9)3]-(thf = tetrahydrofuran, C13H9= fluorenyl) Andrew J. Edwards, Michael A. Paver, Paul R. Raithby, Christopher A. Russell, Dietmar Stalke, Alexander Steiner and Dominic S. Wright, pp 1465 DOI:10.1039/DT9930001465

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viij

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX035

Issue 10

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX037

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP057

Mechanism of the acid-catalysed substitution of [Fe4S4(SR)4]n-(R = Ph, n= 2 or 3; R = Et or But, n= 2), and transient binding of small molecules at [Fe4S4(SEt)4]2- Richard A. Handerson and Kay E. Oglieve, pp 1467 DOI:10.1039/DT9930001467

Kinetic studies on [{MFe3S4(SR)3}2(µ-SR)3]3-(M = Mo or W, R = Et or Ph): influence of Mo or W on the mechanism of substitution at the iron centres within the cluster Richard A. Henderson and Kay E. Oglieve, pp 1473 DOI:10.1039/DT9930001473

Imido and oxo compounds of chromium-(V) and -(VI) and of molybdenum- and tungsten-(VI) Hon-wah Lam, Geoffrey Wilkinson, Bilquis Hussain-Bates and Michael B. Hursthouse, pp 1477 DOI:10.1039/DT9930001477

Oxamidato complexes. Part 6. Complex formation between copper(II) and N,N-bis[2-(dimethylamino)ethyl]oxamide (H2dmaeoxd). Preparation, crystal structure, and magnetic properties of [Cu2(dmaeoxd)(NCO)2(H2O)2] José Antonio Real, Miquel Mollar, Rafael Ruiz, Juan Faus, Francesc Lloret, Miguel Julve and Michèle Philoche-Levisalles, pp 1483 DOI:10.1039/DT9930001483

Six-co-ordinate tris(bidentate ligand) tin(IV) complexes Caroline I. F. Denekamp, (the late) Dennis F. Evans, Jonathan Parr and J. Derek Woollins, pp 1489 DOI:10.1039/DT9930001489

Grafted iron(III) physiological-type porphyrin aggregates: syntheses, magnetic measurements and resonance-Raman study Claude Brémard, Jean Jacques Girerd, Jean Claude Merlin and Serge Moreau, pp 1493 DOI:10.1039/DT9930001493

5,5-bi(1,3,2,4-dithiadiazolylium)(2+) bis[hexafluoroarsenate(V)]: a general synthetic strategy to molecules and radicals containing thiazyl rings Simon Parsons, Jack Passmore and Peter S. White, pp 1499 DOI:10.1039/DT9930001499

Synthesis and characterization of thiolato- and selenolato-platinum(II) complexes with bis(diphenylphosphino)alkanes Vimal K. Jain, Shanmugapenumal Kannan, Ray J. Butcher and J. P. Jasinski, pp 1509 DOI:10.1039/DT9930001509

A convenient synthesis of binuclear methylpalladium(II) complexes Anshu Singhal and Vimal K. Jain, pp 1515 DOI:10.1039/DT9930001515

Studies of the bonding in iron(II) cyclopentadienyl and arene sandwich compounds. Part 3. Carbon-13 nuclear magnetic resonance and iron-57 Mössbauer spectroscopic studies on [(-cyclohexadienyl)(-cyclopentadienyl)]iron(II) complexes Richard A. Brown, Andrew Houlton, Roger M. G. Roberts, Jack Silver and Elizabeth Slade, pp 1519 DOI:10.1039/DT9930001519

Hydrothermal synthesis, crystal structure and ionic conductivity of Ag2VO2PO4: a new layered phosphate of vanadium(V) Hsun-Yueh Kang, Sue-Lein Wang, Ping-Ping Tsai and Kwang-Hwa Lii, pp 1525 DOI:10.1039/DT9930001525

Rhodium- and iridium-perfluorobenzenethiolato complexes, [(C5Me5)Ir(SC6F5)2], [(C5Me5)Ir(SC6F4H-p)2] and [(C5Me5)2Rh2(µ-SC6F5)3][(C5Me5)Rh(SC6F5)3]: syntheses, crystal structures and solution behaviour Juventino J. Garcia, Hugo Torrens, Harry Adams, Neil A. Bailey, Andrew Shacklady and Peter M. Maitlis, pp 1529 DOI:10.1039/DT9930001529

Ternary complexes in solution (part 551) with phosphonates as ligands. Various intramolecular equilibria in mixed-ligand complexes containing the antiviral 9-(2-phosphonomethoxyethyl)adenine, an adenosine monophosphate analogue Dong Chen, Matthias Bastian, Fridrich Gregáab, Antonin Holýa and Helmut Sigel, pp 1537 DOI:10.1039/DT9930001537

Remarkable lack of biological activity exhibited by a dna-reactive and water-soluble cis-bis(phosphino) platinum(II) complex Guendalina Trovóa, Bruno Longato, Benedetto Corain, Andrea Tapparo, Ariella Furlani, Vito Scarcia, Francarosa Baccichetti, Franco Bordin and Manlio Palumbo, pp 1547 DOI:10.1039/DT9930001547

Synthesis and characterization of new octamolybdates containing imidazole, 1-methyl- or 2-methyl-imidazole co-ordinatively bound to molybdenum Pedro Martían-Zarza, Juan Manuel Arrieta, M. Carmen Muñoz-Roca and Pedro Gili, pp 1551 DOI:10.1039/DT9930001551

Comparison of the complexing processes of 1-butyl-2-hydroxymethylimidazole and 1-butyl-2-methylimidazole in aqueous solution Barbara Barszcz and Jacek Kulig, pp 1559 DOI:10.1039/DT9930001559

Synthesis and characterization of ruthenium complexes which utilize a new family of terdentate ligands based upon 2,6-bis(pyrazol-1-yl)pyridine Carol A. Bessel, Ronald F. See, Donald L. Jameson, Melvyn Rowen Churchill and Kenneth J. Takeuchi, pp 1563 DOI:10.1039/DT9930001563

Synthesis, characterisation and variable-temperature nuclear magnetic resonance of bis(bipyridine)ruthenium complexes containing dihydrazone ligands Joseph A. Bolger, George Ferguson, John P. James, Conor Long, Patrick McArdle and Johannes G. Vos, pp 1577 DOI:10.1039/DT9930001577

Allyl(carbaborane) complexes of Group 6 metals: preparation and reactivity Stephen J. Dossett, Sihai Li and F. Gordon A. Stone, pp 1585 DOI:10.1039/DT9930001585

Synthesis, structure and dynamic behaviour of the compound [Nb(-C5H5)2(-C5H5)(NBut)] Malcolm L. H. Green, Despo M. Michaelidou, Philip Mountford, Alejandra G. Suárez and Luet-Lok Wong, pp 1593 DOI:10.1039/DT9930001593

Inorganic Grignard analogues. Reaction of cobalt powder with triorganodiiodophosphorus compounds to form [PR3I][Co(PR3)I3]. Crystal structure of [PPh3I][Co(PPh3)I3], and isolation of the novel complexes [PPh3I][Co(PPh3)IBr2] and [SbPh3I][Co(SbPh3)I3] Stephen M. Godfrey, Helen P. Lane, Charles A. McAuliffe and Robin G. Pritchard, pp 1599 DOI:10.1039/DT9930001599

Synthesis and characterisation of manganese(III) unsymmetrical Schiff-base complexes: a unique example of a cocrystallised manganese(III) unsymmetrical Schiff-base complex, and a symmetric Schiff-base complex arising from rearrangement of the former Ana Garcia-Deibe, Manuel R. Bermejo, Antonio Sousa, Charles A. McAuliffe, Paul McGlynn, Peter T. Ndifon and Robin G. Pritchard, pp 1605 DOI:10.1039/DT9930001605

Cobalt(II) triazene 1-oxide bis(chelates). A case of planar (low spin)-tetrahedral (high spin) isomerism Juliusz A. Wolny, Mikoaj F. Rudolf, Zbigniew Ciunik, Kazimierz Gatner and Stanisaw Woowiec, pp 1611 DOI:10.1039/DT9930001611

Oximato complexes. Part 1. Solution study, synthesis, structure, spectroscopic and magnetic properties of polynuclear copper(II) complexes containing dimethylglyoxime Rafael Ruiz, José Sanz, Beatriz Cervera, Francesc Lloret, Miguel Julve, Claudette Bois, Juan Faus and M. Carmen Muñoz, pp 1623 DOI:10.1039/DT9930001623

Dalton communications. Models of cytochromes b containing an organometallic axial base, azaferrocene: synthesis and electron paramagnetic resonance study Janusz Zakrzewski and Charles Giannotti, pp 1629 DOI:10.1039/DT9930001629

Additions and corrections Scott S. D. Brown, Ian D. Salter, Trushar Adatia, Samiran Bhattacharjee and Ramgopal Bhattacharyya, pp 1631 DOI:10.1039/DT9930001631

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viik

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX039

Issue 11

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX041

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP063

Hemes and hemoproteins. Part 7. Co-ordination of ammonia, aniline and pyridine by the iron(III) porphyrin microperoxidase-8 Helder M. Marques, Mark P. Byfield and John M. Pratt, pp 1633 DOI:10.1039/DT9930001633

Hemes and hemoproteins. Part 8. Co-ordination of amines and amino acids by the iron(III) porphyrin microperoxidase-8 Mark P. Byfield, Mohamed S. A. Hamza and John M. Pratt, pp 1641 DOI:10.1039/DT9930001641

Hemes and hemoproteins. Part 9. Co-ordination of pyridines and diazines by the iron(III) porphyrin microperoxidase-8 Mohamed S. A. Hamza and John M. Pratt, pp 1647 DOI:10.1039/DT9930001647

Synthesis and stereochemistry of cobalt(III) complexes containing 2-thiocytocine and derivatives Kazuaki Yamanari, Masahiro Yamamoto, Makiko Kida, Takashi Fujihara, Akira Fuyuhiro and Sumio Kaizaki, pp 1651 DOI:10.1039/DT9930001651

Tertiary phosphine adducts of [Nb(O)Cl3] Vernon C. Gibson and Terence P. Kee, pp 1657 DOI:10.1039/DT9930001657

Eleven-vertex polyhedral stannadicarbaborane chemistry. naked tin{closo-1,2,3-SnC2B8}-cluster compounds Karl Nestor, Bohumil tíbr, Tomá Jelínek and John D. Kennedy, pp 1661 DOI:10.1039/DT9930001661

Redox chemistry of trinuclear complexes possessing a hexathiolatomolybdate(IV) core: in situ syntheses, characterization and geometry optimization Heinz-Bernhard Kraatz, P. Michael Boorman, A. Scott Hinman, Tom Ziegler, David Collison and Frank E. Mabbs, pp 1665 DOI:10.1039/DT9930001665

Reaction of the unsaturated triosmium clusters [Os3H(CO)8{Ph2PCH2P(Ph)C6H4}] and [Os3H(CO)8{Ph2PC(CH2)P(Ph)C6H4}] with phosphines and phosphites; crystal structures of [Os3H(CO)8{Ph2PCH2P(Ph)C6H4}(PPri3)], [Os3(CO)8(Ph2PCH2PPh2){P(OMe)3}2], and [Os3(CO)8(Ph2PCH2PPh2)(PPh3)2] Michael P. Brown, P. Ann Dolby, Marjorie M. Harding, A. Jane Mathews and Anthony K. Smith, pp 1671 DOI:10.1039/DT9930001671

Synthesis and electrochemical studies of new ferrocene-labelled dinuclear rhodium(II) complexes. Crystal structures of [Rh2(O2CMe)2{[(C6H4)PhP(C5H4)]Fe(C5H5)}2(HO2CMe)2] and [Rh2(O2CMe)2{[(C6H4)PhP(C5H4)]2Fe}(HO2CMe)]·CH2Cl2 Francisco Estevan, Pascual Lahuerta, Julio Latorre, Eduardo Peris, Santiago García-Granda, Fermin Gómez-Beltrán, Angel Aguirre and Miguel A. Salvadó, pp 1681 DOI:10.1039/DT9930001681

Photocatalysis of cyclooctane dehydrogenation by the a-frame dinuclear rhodium complex [Rh2(µ-S)(CO)2(dppm)2][dppm = bis(diphenylphosphino)methane] Hiroaki Itagaki, Hisahiro Einaga and Yasukazu Saito, pp 1689 DOI:10.1039/DT9930001689

Thermodynamics of lanthanide(III) complex formation with nitrogen-donor ligands in dimethyl sulfoxide Alberto Cassol, Gregory R. Choppin, Plinio Di Bernardo, Roberto Portanova, Marilena Tolazzi, Giuliana Tomat and Pier Luigi Zanonato, pp 1695 DOI:10.1039/DT9930001695

Stereochemistry of sugar units in glycosylamine ligands of octahedral complexes derived from tris(trimethylenediamine)-nickel(II) and natural aldohexoses Shigenobu Yano, Masako Kato, Hideki Shioi, Toshikazu Takahashi, Taro Tsubomura, Koshiro Toriumi, Tasuku Ito, Masanobu Hidai and Sadao Yoshikawa, pp 1699 DOI:10.1039/DT9930001699

Synthesis, crystal structure and magnetic properties of a dinuclear copper(II) complex with 1,1-(4-methylpyrazole-3,5-diyl)diacetaldehyde dioxime. Evidence for both classical and zwitterion structures Bouchaïb Mernari, Francis Abraham, Michel Lagrenee, Marc Drillon and Patrick Legoll, pp 1707 DOI:10.1039/DT9930001707

Molybdenum(VI) complex formation. Part 6. Reactions with aspartate in 1.0 mol dm-3 sodium chloride medium at 25 °C Johannes J. Cruywagen, J. Bernard B. Heyns and Elisabeth A. Rohwer, pp 1713 DOI:10.1039/DT9930001713

The preparation and luminescence decay dynamics of coupled heterolanthanide(III) cations in dinuclear Schiff-base complexes Karen D. Matthews, Richard A. Fairman, Andrea Johnson, Kirk V. N. Spence, Ishenkumba A. Kahwa, Gary L. McPherson and Hilary Robotham, pp 1719 DOI:10.1039/DT9930001719

Chlorocobalt(III) and chlorochromium(III) complexes of a new chiral quinquedentate polyamine based on RR-trans-cyclohexane-1,2-diamine Bronwyn L. Elliott, Trevor W. Hambley, Geoffrey A. Lawrance, Marcel Maeder and Gang Wei, pp 1725 DOI:10.1039/DT9930001725

Generation of the V(NO)2+ moiety from VO43- using hydroxylamine and pseudo-halide ions: synthesis and electrochemistry of [V(NO)2(L-L)2]X (L-L = 2,2-bipyridine or 1,10-phenanthroline) Mrinal Mallik, Prodip N. Ghosh and Ramgopal Bhattacharyya, pp 1731 DOI:10.1039/DT9930001731

Synthesis and characterization of the monomeric phosphinogallanes But2GaPRR(R, R= bulky aryl or silyl groups) and related compounds Mark A. Petrie and Philip P. Power, pp 1737 DOI:10.1039/DT9930001737

Reactions of co-ordinated ligands. Part 55. Molybdenummediated addition of alkynes to cyclooctatetraene; one-electron oxidation and protonation of 3-allyl(4-1,3-diene)(-cyclopentadienyl or 5-indenyl) molybdenum complexes, and crystal structures of [Mo(3,4-C12H13)(-C5H5)], [Mo(2,4-C14H17)(-C5H5)][BF4] and [Mo(2,4-C12H13)(µMo,C-H)(5-C9H7)][CF3SO3] Lee Brammer, Barry J. Dunne, Michael Green, Grainne Moran, A. Guy Orpen, Carolyn Reeve and Colin J. Schaverien, pp 1747 DOI:10.1039/DT9930001747

Reactions of co-ordinated ligands. Part 56. Synthesis and reactivity of [Mo{3,3-CH(Me)C(Me)CHCHC(Me)CH2}(Co)(-C5H5)][BF4] formed by coupling of but-2-yne and isoprene ligands; reactions of [Mo(2-C2H4)(2-MeC2Me)(CO)(-C5H5)][BF4] Carla Carfagna, Michael Green, Katherine R. Nagle, David J. Williams and Christopher M. Woolhouse, pp 1761 DOI:10.1039/DT9930001761

The phenomenon of conglomerate crystallization. Part 34. Crystal structures of the conglomerate (-)599-K[cis--()-Co(edda)(No2)2] and of the racemate K[cis--()-Co(edda)(NO2)2]·H2O (edda = ethylenediamine-N,N-diacetate) Ivan Bernal, James Cetrullo, Jozef Myrczek, Jiwen Cai and William T. Jordan, pp 1771 DOI:10.1039/DT9930001771

Dalton communications. Synthesis and structure of the first phosphine oxide complex of copper(I): evidence for a marked borderline character of the metal centre Giuseppe Pilloni, Benedetto Corain, Massimo Degano, Bruno Longato and Giuseppe Zanotti, pp 1777 DOI:10.1039/DT9930001777

Reaction of copper(II) with a metalloporphyrin. A type of supramolecular-driven porphyrin metallation Rosario A. Vilaplana and Francisco González-Vílchez, pp 1779 DOI:10.1039/DT9930001779

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viil

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX043

Issue 12

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX045

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP069

Synthesis and characterization of novel metallocarborane triple-decker complexes Jennifer M. Forward, D. Michael P. Mingos, Walter Siebert, Jan Hauss and Harold R. Powell, pp 1783 DOI:10.1039/DT9930001783

Reaction of CS2 with a ligand-bridged dicobalt complex: crystal and molecular structures of [Co2{µ-PPh2CHC(SiMe3)C(O)CS}(µ-PPh2S)(CO)3] and [Co2(µ-PPh2CHCPhCS)(µ-PPh2S)(CO)3] Avelino Martín, Martin J. Mays, Paul R. Raithby and Gregory A. Solan, pp 1789 DOI:10.1039/DT9930001789

Synthesis and structural characterization of the phosphido cluster [Ir4H(CO)10(µ-PPh2)] and its facile carbonyl substitution reactions with a series of phosphines and phosphites Fatima S. Livotto, Paul R. Raithby and Maria D. Vargas, pp 1797 DOI:10.1039/DT9930001797

Hydrolysis reaction of [Pt(NSO)2(PMe2Ph)2]. Crystal structures of [Pt(SO3)(PMe2Ph)3]·H2O and [{Pt(SO3)(PMe2Ph)2}2]·5CHCl3 Vanessa C. Ginn, Paul F. Kelly, Christos Papadimitriou, Alexandra M. Z. Slawin, David J. Williams and J. Derek Woollins, pp 1805 DOI:10.1039/DT9930001805

An 2 transition state for the insertion of M(PR3)2 fragments (M = Pd or Pt) into the phosphorus-carbon bonds of pentacarbonyl(phosphirane)tungsten complexes Duncan Carmichael, Peter B. Hitchcock, John F. Nixon, François Mathey and Louis Ricard, pp 1811 DOI:10.1039/DT9930001811

Synthesis, crystal structure and solution fluxionality of heterometallic hydride clusters [WRu3L(CO)11(µ-H)2-(AuPPh3)](L = C5H5 or C5Me5) Chi-Chung Chen, Yun Chi, Shie-Ming Peng and Gene-Hsiang Lee, pp 1823 DOI:10.1039/DT9930001823

Synthesis of Os3W alkylidyne and alkylidene clusters by solid-state pyrolysis; direct C-O bond cleavage of co-ordinated ketenyl ligand Jia-Huey Gong, Chi-Chung Chen, Yun Chi, Sue-Lein Wang and Fen-Ling Liao, pp 1829 DOI:10.1039/DT9930001829

Oxidative addition of E-E bonds (E = Group 16 element) to platinum(II): a route to platinum(IV) thiolate and selenolate complexes Khin-Than Aye, Jagadese J. Vittal and Richard J. Puddephatt, pp 1835 DOI:10.1039/DT9930001835

Chemistry of cobalt complexes with 1,2-bis-(diethylphosphino)ethane: hydrides, carbon disulfide complexes, and C-H cleavage in activated alk-1-ynes. Crystal structure of [CoH(CCCO2Et)(Et2PCH2CH2PEt2)2][BPh4] Manuel García Basallote, David L. Hughes, Manuel Jiménez-Tenorio, G. Jeffery Leigh, M. Carmen Puerta Vizcaíno and Pedro Valerga Jiménez, pp 1841 DOI:10.1039/DT9930001841

Oxovanadium(IV) complexes of mercaptocarboxylic acids Tamás Kiss, Péter Buglyó, Giovanni Micera, Alessandro Dessì and Daniele Sanna, pp 1849 DOI:10.1039/DT9930001849

Synthesis of hexacarbonyldicobalt-complexed thiacycloalkynes Andrew Gelling, G. Farouq Mohmand, John C. Jeffery and Michael J. Went, pp 1857 DOI:10.1039/DT9930001857

Amphiphilic bis(thiolato)-nickel(II), -palladium(II) and -platinum(II) complexes with diphosphine or phosphinoarsine ligands Penelope S. Jarrett, Orla M. Ni Dhubhghaill and Peter J. Sadler, pp 1863 DOI:10.1039/DT9930001863

Spin-lattice relaxation time and temperature dependence of fluorine-19 nuclear magnetic resonance spectra of cysteine-containing peptide iron(II) complexes Wei-Yin Sun, Norikazu Ueyama and Akira Nakamura, pp 1871 DOI:10.1039/DT9930001871

The metal complex host catena-[(1,2-diaminopropane)-cadmium(II) tetracyanonickelate(II)] which provides channel cavities for straight- and branched-chain aliphatic guests Ki-Min Park and Toschitake Iwamoto, pp 1875 DOI:10.1039/DT9930001875

Dinuclear double helicates incorporating a 1,3-phenylene spacer; the crystal and molecular structure of diacetato-1x2O-,2x2O-bis[µ-1,3-bis(4-methylthio-2,2-bipyridin-6-yl)benzene-1x2N,N:2x2N,N]dinickel bis(hexafluorophosphate) Edwin C. Constable, Michael J. Hannon and Derek A. Tocher, pp 1883 DOI:10.1039/DT9930001883

Synthesis of [M3H(CO)9(µ3-:2:2-C6H7)](M = Ru or Os). Molecular and crystal structure of the ruthenium cluster Dario Braga, Fabrizia Grepioni, Emilio Parisini, Brian F. G. Johnson, Caroline M. Martin, Jacqueline G. M. Nairn, Jack Lewis and Marcia Martinelli, pp 1891 DOI:10.1039/DT9930001891

Ligand effects on the fragmentation of ion-molecule complexes of transition-metal ions with amines Lin-Zhi Chen and Jack M. Miller, pp 1897 DOI:10.1039/DT9930001897

Solvation and axial ligation properties of (2,3,7,8,12,13,17,18-octabromo-5,10,15,20-tetraphenylporphyrinato)zinc(II) Puttaih Bhyrappa, Varadachari Krishnan and Munirathinam Nethaji, pp 1901 DOI:10.1039/DT9930001901

Reactions of nickel(II) diphenolate diamide complexes with polydentate ligands Sanjukta Tripathy and Sreelekha D. Bhattamisra, pp 1907 DOI:10.1039/DT9930001907

Dalton communications. Hydrothermal synthesis of single crystals of LiBePO4·H2O: a Li-A(BW) type zeolitic material Christian Robl and Volker Göbner, pp 1911 DOI:10.1039/DT9930001911

The effect of added molecular sieves on alkene epoxidation reactions catalysed by [MoO2Cl2L], where L is a 3-(diethoxyphosphoryl) derivative of camphor Russell Clarke and David J. Cole-Hamilton, pp 1913 DOI:10.1039/DT9930001913

Synthesis and structural characterisation of [Os6(CO)12(6-C6H6)2] Jack Lewis, Chi-Keung Li, Muna R. A. Al-Mandhary and Paul R. Raithby, pp 1915 DOI:10.1039/DT9930001915

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viim

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX047

Issue 13

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX049

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP075

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9930000ixa

The chemistry of monoanionic carbaborane ligands. Synthesis and structure of compounds with carbonyl and cycloocta-1,5-diene ligands additionally bound to metal atoms, including a cationic carbametallaborane Natalia L. Douek and Alan J. Welch, pp 1917 DOI:10.1039/DT9930001917

Synthesis and characterization of five-co-ordinate alkyne complexes of platinum(II). Crystal and molecular structure of [(dmphen) MePt(µ-Cl)(µ-MeCCMe)Pt(Cl)Me]·CH2 Cl2(dmphen = 2,9-dimethyl-1,10-phenanthroline) Vincenzo De Felice, Augusto De Renzi, Federico Giordano and Diego Tesauro, pp 1927 DOI:10.1039/DT9930001927

Synthesis and spectroscopic studies of ruthenium complexes with poly(pyrazol-1-yl) methane ligands. Crystal structure of [RuCl(cod)(tpzm)]Cl·EtOH [cod = cycloocta-1,5-diene, tpzm = tris(pyrazol-1-yl)methane] Mariano Fajardo, Antonio de la Hoz, Enrique Diéz-Barra, Félix A. Jalón, Antonio Otero, Ana Rodríguez, Juan Tejeda, Daniele Belletti, Maurizio Lanfranchi and Maria Angela Pellinghelli, pp 1935 DOI:10.1039/DT9930001935

Spectroelectrochemistry of the dioxygen adduct of an iron(II) C2-capped porphyrin James H. Cameron and Steven C. Turner, pp 1941 DOI:10.1039/DT9930001941

Mono- and di-nuclear helical complexes of 2,2:6,2:6,2:6,2?-quinquepyridine (qpy) and its 4,4-disubstituted derivatives; crystal and molecular structures of [Co(bcpqpy)(H2O)(MeOH)][PF6]2 and [Ni2(bmtqpy)2(O2CMe)][PF6]3[bcpqpy and bmtqpy = bis(p-chlorophenyl) and bis(methylthio) derivatives] Edwin C. Constable, Marcus A. M. Daniels, Michael G. B. Drew, Derek A. Tocher, Juliet V. Walker and Philip D. Wood, pp 1947 DOI:10.1039/DT9930001947

Determination of the self-exchange rate constant for plastocyanin from Anabaena variabilis by nuclear magnetic resonance line broadening Christopher Dennison, Panayotis Kyritsis, William McFarlane and A. Geoffrey Sykes, pp 1959 DOI:10.1039/DT9930001959

A new tetratungstate, [W4O4Cl10(NBut)4]2-, and its degradation to the mononuclear complex [WOCl2(NBut)-(bipy)] or [WCl2(NBut)2(bipy)](bipy = 2,2-bipyridine) William Clegg, R. John Errington, David C. R. Hockless and Carl Redshaw, pp 1965 DOI:10.1039/DT9930001965

Molecular structures of mixed-ligand palladium(II) and platinum(II) alkyl complexes, including three isomorphous compounds Kingsley J. Cavell, Hong Jin, Brian W. Skelton and Allan H. White, pp 1973 DOI:10.1039/DT9930001973

Novel sandwich cations of platinum with tetramethyl-cyclobutadiene and cyclopentdienyl or hexamethylbenzene ligands Gerhard E. Herberich, Ulli Englert and Frank Marken, pp 1979 DOI:10.1039/DT9930001979

The molecular structure of (5-cyclopentadienyl)-bis(ethene)rhodium determined by gas-phase electron diffraction Richard Blom, David W. H. Rankin, Heather E. Robertson and Robin N. Perutz, pp 1983 DOI:10.1039/DT9930001983

Synthesis, properties and crystal structures of [MoVL(O)l2]PF6[MoIVL(O)l2], [MoVL(O)(OMe)2]PF6[MoVILO2(OMe)]BPh4 and [Mo2L2O3(µ-O)l][BPh4]2(L = 1,4,7-trimethyl-1,4,7-triazacyclononane) Kai Silke Bürger, Gabriele Haselhorst, Stefan Stötzel, Thomas Weyhermüller, Karl Wieghardt and Bernhard Nuber, pp 1987 DOI:10.1039/DT9930001987

Synthesis, characterization and crystal structure of 2-dicyanomethylene-1,3-bis(ferrocenylmethyl)-1,3-diazolidine Angel Benito, Juan Cano, Ramón Martínez-Máñez, Jordi Payá, Juan Soto, Miguel Julve, Francesc Lloret, M. Delores Marcos and Ekkehard Sinn, pp 1999 DOI:10.1039/DT9930001999

Oxo-centred trinuclear carboxylato complexes containing mixed-metal and mixed-valence clusters CrIII2MIIO and MnIII2MIIO (m = Co, Ni or Mn) Roderick D. Cannon, Upali A. Jayassooriya, Ladda Montri, Ahmed K. Saad, Elisha Karu, Sarah K. Bollen, William R. Sanderson, Anne K. Powell and Anthony B. Blake, pp 2005 DOI:10.1039/DT9930002005

Lewis-base adducts of lead(II) complexes. Part 6. X-Ray structural characterisation of adducts of lead(II) bis(perchlorate) with dimethyl sulfoxide Jack M. Harrowfield, Brian W. Skelton and Allan H. White, pp 2011 DOI:10.1039/DT9930002011

Metal-ion complexation in aqueous solutions of 1 - thia-4,7-diazacyclononane-, 1-thia-4,8-diazacyclodecane and 2,5-diazahexane-N,N-diacetic acid Dorine M. Wambeke, Werner Lippens, Gerrit G. Herman and André M. Goeminne, pp 2017 DOI:10.1039/DT9930002017

Resolution of racemic amino acids via stereoselective ligand-exchange reactions on an optically pure nickel(II) complex Paul V. Bernhardt, Peter Comba, Trevor W. Hambley, Imre Sávágó and Katalin Várnagy, pp 2023 DOI:10.1039/DT9930002023

Synthesis and structural characterisation of glucofuranoside and galactopyranoside derivatives of [tris(3,5-dimethylpyrazolyl)borato]-molybdenum and -tungsten nitrosyls Andrzej Wlodarczyk, Stefan S. Kurek, Michael A. J. Moss, Malcolm S. Tolley, Andrei S. Batsanov, Judith A. K. Howard and Jon A. McCleverty, pp 2027 DOI:10.1039/DT9930002027

Preparation of some oxoniobium carboxylates. X-Ray crystal and molecular structure of [{NbCl3(O2CPh)}2O] David A. Brown, Malcolm G. H. Wallbridge and Nathaniel W. Alcock, pp 2037 DOI:10.1039/DT9930002037

Cleavage of phosphorus-phenyl and phosphorus-2-pyridyl bonds in the reactions of mixed phenyl-(2-pyridyl) phosphines with [Ru3(CO)12] Antony J. Deeming and Martin B. Smith, pp 2041 DOI:10.1039/DT9930002041

Isoskeletal Rh10C2 metal clusters containing four Au(PPh3) groups and a variable number of carbonyl ligands Alessandro Fumagalli, Secondo Martinengo, Vincenzo G. Albano, Dario Braga and Fabrizia Grepioni, pp 2047 DOI:10.1039/DT9930002047

Rare examples of five-co-ordinate manganese(II) complexes containing monodentate ligands. Crystal structures of [MnBr2(PEt3)] and [Mnl2(PMeEt2)], and their reaction with dioxygen Stephen M. Godfrey, David G. Kelly, Charles A. McAuliffe and Robin G. Pritchard, pp 2053 DOI:10.1039/DT9930002053

Formation of tris-chelated vanadium(IV) complexes by interaction of oxovanadium(IV) with catecholamines, 3-(3,4-dihydroxyphenyl)alanine and related ligands in aqueous solution Péter Buglyó, Alessandro Dessì, Tamas Kiss, Giovanni Micera and Daniele Sanna, pp 2057 DOI:10.1039/DT9930002057

Influence of acetate ion on the formation reactions of organochromium(III) species. A rapid-scan and high-pressure pulse-radiolysis study Wolfgang Gaede, Achim Gerhard, Rudi van Eldik, Haim Cohen and Dan Meyerstein, pp 2065 DOI:10.1039/DT9930002065

Dalton communications. Intramolecular hydrogen-bond controlled unidentate co-ordination of potentially chelating N-acyl-N-alkylthioureas: crystal structure of cis-bis(N-benzoyl-N-propylthiourea) dichloroplatinum(II) Susan Bourne and Klaus R. Koch, pp 2071 DOI:10.1039/DT9930002071

Preparation, characterization and crystal structure of bis(1,2,6,7-tetracyano-3,5-dihydro-3,5-diiminopyrrolizinido)-palladium(II)-1,2-dimethoxyethane (1/2) Mario Bonamico, Vincenzo Fares, Alberto Flamini and Nicola Poli, pp 2073 DOI:10.1039/DT9930002073

Synthesis, photophysics and electrochemistry of novel luminescent trinuclear heterometallic materials. Crystal structure of [PtII(dppy)2(PhCC)2{cuI(MeCN)2}2][PF6]2(dppy = 2-diphenylphosphinopyridine) Vivian Wing-Wah Yam, Lai-Ping Chan and Ting-Fong Lai, pp 2075 DOI:10.1039/DT9930002075

Additions and corrections Theo Rodopoulos, Pierre-André Pittet and Stephen F. Lincoln, pp 2079 DOI:10.1039/DT9930002079

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX051

Issue 14

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX053

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP083

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9930000ixb

Hexafluoroarsenates of graphite from its interaction with AsF5 AsF5+ F2 and O2AsF6 and the structure of C14AsF6 Fujio Okino and Neil Bartlett, pp 2081 DOI:10.1039/DT9930002081

The electrochemical reduction mechanism of [N,N-1,2-phenylenebis(salicylideneiminato)]cobalt(II) Abdirisak Ahmed Isse, Armando Gennaro and Elio Vianello, pp 2091 DOI:10.1039/DT9930002091

Synthesis, spectroscopy and excited-state redox properties of novel luminescent trinuclear three-co-ordinate gold(I) phosphine complexes Vivian Wing-Wah Yam and Wai-Kit Lee, pp 2097 DOI:10.1039/DT9930002097

Tin(IV), germanium(IV) and silicon(IV) complexes of the dianion of 5, 14-dihydro-6,8,15,17-tetramethyldibenzo-[b,i][1,4,8,11]tetraazacyclotetradecine (H2L): crystal structures of trans-Sn(L)Cl2 and trans-Sn(L)(NO3)2·MeCN Warwick J. Belcher, Penelope J. Brothers, Michael V. Land, Clifton E. F. Rickard and David C. Ware, pp 2101 DOI:10.1039/DT9930002101

Ammonium redox-responsive receptors containing multiple ferrocene and quinone redox-active centres attached to di- and tri-aza crown ether macrocycles Paul D. Beer, Declan B. Crowe, Mark I. Ogden, Michael G. B. Drew and Brian Main, pp 2107 DOI:10.1039/DT9930002107

Some insertion reactions into the Ti-Me bond of [Ti(5-C5Me5)MeCl2]; crystal structures of [Ti(5-C5Me5)(2-COMe)Cl2] and [{Ti(5-C5Me5)}2(µ-Cl)2{µ-4-CH2-(2,6-me2C6H3N)CC(NC6H3Me2-2,6)CH2}] Avelino Martín, Miguel Mena, Maria Angela Pellinghelli, Pascual Royo, (the late) Ricardo Serrano and Antonio Tiripicchio, pp 2117 DOI:10.1039/DT9930002117

Complexation of the sodium ion by a pendant-arm tetraaza macrocyclic ligand in aqueous solution Ashley K. W. Stephens and Stephen F. Lincoln, pp 2123 DOI:10.1039/DT9930002123

Comparison of the co-ordinative behaviour of calcium(II) and magnesium(II) from crystallographic data Oliviero Carugo, Kristina Djinovi and Menico Rizzi, pp 2127 DOI:10.1039/DT9930002127

A molecular mechanics study of the complexation of metal ions by inositols Robert D. Hancock and Kaspar Hegetschweiler, pp 2137 DOI:10.1039/DT9930002137

Platinum(II) complexes of functionalized malonato ligands: unequivocal synthesis, interaction with a tetradeoxyribonucleotide and deoxyribonucleic acid Jean-Pierre Laurent and Bernard Morvan, pp 2141 DOI:10.1039/DT9930002141

Different co-ordination modes of the ligand [SPPh2]- in complexes of PdII and PtII. Crystal structures of [{Pd(µ-SPPh2)(C6F5)(PPh3)}2] and [Pd(SPPh2)(PPh3)2]ClO4·CH2Cl2 Juan Forniés, Francisco Martínez, Rafael Navarro, Esteban P. Urriolabeitia and Alan J. Welch, pp 2147 DOI:10.1039/DT9930002147

Transition-metal chemistry of main-group hydrazides. Part 2. A new oxime thiosemicarbazide framework as a novel SN multifunctional tripodal ligand for palladium(II): synthetic and X-ray crystal structural investigations Kattesh V. Katti, Prahlad R. Singh and Charles L. Barnes, pp 2153 DOI:10.1039/DT9930002153

Imidazolate-bridged copper(II) complexes with infinite zigzag-chain and tetranuclear structures formed by deprotonation and self-assembly Naohide Matsumoto, Takeshi Nozaki, Hiroyuki Ushio, Ken-ichiro Motoda, Masaaki Ohba, Genjin Mago and Hisashi kawa, pp 2157 DOI:10.1039/DT9930002157

Synthesis, crystal structure and magnetic properties of a linear trinuclear copper(II) compound with chloride and 4-amino-3,5-bis(hydroxymethyl)-1,2,4-triazole as bridging ligands Petra J. van Koningsbruggen, Jaap W. van Hal, Rudolf A. G. de Graaff, Jaap G. Haasnoot and Jan Reedijk, pp 2163 DOI:10.1039/DT9930002163

2,2-Bipyrimidine (bipym)-bridged dinuclear complexes. Part 2. Synthesis, crystal structure and magnetic properties of [Fe2(H2O)8(bipym)][SO4]2·2H2O and [Fe2(H2O)6(bipym)(SO4)2] Enrique Andrés, Giovanni De Munno, Miguel Julve, José Antonio Real and Francesc Lloret, pp 2169 DOI:10.1039/DT9930002169

Crystal structures, spectral and magnetic properties of (µ-hydroxo)(µ-acetato)dicopper(II) complexes containing chelating amines Shanmugam Meenakumari, Satish K. Tiwari and Akhil R. Chakravarty, pp 2175 DOI:10.1039/DT9930002175

Transition-metal Schiff-base complexes as ligands in tin chemistry. Part 3. An X-ray crystallographic and tin-119 Mössbauer spectroscopic study of adduct formation between tin(IV) Lewis acids and nickel 3-methoxysalicylaldimine complexes Desmond Cunningham, John F. Gallagher, Tim Higgins, Patrick McArdle, John McGinley and Margaret O'Gara, pp 2183 DOI:10.1039/DT9930002183

Synthesis of tetrametallic thiolate-bridged Fe3Au clusters. Crystal structure of [Fe3(CO)9(µ3-SPri){µ-Au(PPh3)}] Esther Delgado, Elisa Herandez, Oriol Rossell, Miquel Seco and Xavier Solans, pp 2191 DOI:10.1039/DT9930002191

Transition-metal complexes of crown ether benzodithiolenes Nigel D. Lowe and C. David Garner, pp 2197 DOI:10.1039/DT9930002197

Synthesis, structure and oxidation of [NiL1]2+[L1= 5-(4-amino-2-azabutyl)-5-methyl-3,7-diazanonane-1,9-diamine]: evidence for rearrangement within the complexed nickel(III) species Alexander McAuley, Seth Subramanian and Todd W. Whitcombe, pp 2209 DOI:10.1039/DT9930002209

One-dimensional antiferromagnetic cycloheptatrienyl molybdenum and tungsten compounds Malcolm L. H. Green, Andrew Harrison, Philip Mountford and Dennis K. P. Ng, pp 2215 DOI:10.1039/DT9930002215

Five-membered methanediide auracycles. Crystal structure of [Au(C6F5)2{Ph2PC(AuPPh3)(AuC6F5)PPh2(CHCO2Me)}] M. Concepción Gimeno, Peter G. Jones, Antonio Laguna, Mariano Laguna and Isabel Lázaro, pp 2223 DOI:10.1039/DT9930002223

Novel manganese(II) complexes formed from the reaction of a coarse-grain, unactivated manganese powder with Pl2(NMe2)3 and Pl2(C6H4SMe-o)3; crystal structure of the dinuclear complex [{Mnl2[P(NMe2)3]}2] Stephen M. Godfrey, Charles A. McAuliffe and Robin G. Pritchard, pp 2229 DOI:10.1039/DT9930002229

Haem-peptide complexes. Synthesis and stereoselective oxidations by deuterohaemin-L-phenylalanyl-poly-L-alanine complexes Luigi Casella, Michele Gullotti, Luca De Gioia, Roberto Bartesaghi and Francesco Chillemi, pp 2233 DOI:10.1039/DT9930002233

Macrocyclic oxovanadium(IV) complexes: structure, magnetochemistry and electrochemistry Ramprasad Das, Kausik K. Nanda, Alok K. Mukherjee, Monika Mukherjee, Madeleine Helliwell and Kamalaksha Nag, pp 2241 DOI:10.1039/DT9930002241

Silver(I) oxide-mediated syntheses of four-membered ring platinalactones William Henderson, Raymond D. W. Kemmitt and Adrienne L. Davis, pp 2247 DOI:10.1039/DT9930002247

Synthesis and crystal structure of the homoleptic uranium (IV) thiolates [(thf)3Na(µ-SR)3U(µ-SR)3NA(thf)3](thf = tetrahydrofuran; R = But or Ph) Pascal C. Levered, Monique Lance, Martine Nierlich, Julien Vigner and Michel Ephritikhine, pp 2251 DOI:10.1039/DT9930002251

Dalton communications. Structural and spectroscopic properties of [{Ru(bipy)2}2(µ-OR)2]2+(R = Me or Et, bipy = 2,2-bipyridine), a new class of strongly interacting bridged binuclear ruthenium complexes David Bardwell, John C. Jeffery, Laurent Joulié and Michael D. Ward, pp 2255 DOI:10.1039/DT9930002255

Synthesis and crystal structure of Sb(NCPh2)3 Andrew J. Edwards, Michael A. Paver, Paul R. Raithby, Christopher A. Russell and Dominic S. Wright, pp 2257 DOI:10.1039/DT9930002257

Synthesis, structure and electrochemistry of [Pt([10]aneS3)2][PF6]2([10]aneS3= 1,4,7-trithiacyclodecane) Alexander J. Blake, Rhona D. Crofts and Martin Schröder, pp 2259 DOI:10.1039/DT9930002259

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX055

Issue 15

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX057

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP091

Tertiary phosphine adducts of mixed halogens, R3PlBr; synthesis and structure in the solid state and solution Neil Bricklebank, Stephen M. Godfrey, Charles A. McAuliffe and Robin G. Pritchard, pp 2261 DOI:10.1039/DT9930002261

Infrared spectroelectrochemical studies of bis(1,2-dithiolene) complexes of transition metals Stephen P. Best, Slava A. Ciniawsky, Robin J. H. Clark and Roderick C. S. McQueen, pp 2267 DOI:10.1039/DT9930002267

Multinuclear nuclear magnetic resonance studies of dirhodium and platinum-rhodium A-frame complexes of bis(diphenylphosphino)methane Adrienne L. Davis and Robin J. Goodfellow, pp 2273 DOI:10.1039/DT9930002273

Solvent extraction of lanthanoid(III) picrates with a bis(crown ether): enhanced extractability through double-sandwich complexation Yoshihisa Inoue, Kazuharu Nakagawa and Tadao Hakushi, pp 2279 DOI:10.1039/DT9930002279

Kinetics and mechanism of reduction of bromothallium(III) complexes by hydrogen peroxide in perchloric acid media Muvvala Sanni Prasada Rao, Adari Rama Mohan Rao, Rachamadugu Kalavathi, Tirukkovalluri Siva Rao and Parvateneni Vani, pp 2283 DOI:10.1039/DT9930002283

Reactions of five spinach plastocyanin PCu(I) mutants with [Fe(CN)6]3- and [Co(phen)3]3+(phen = 1,10-phenanthroline) and related studies Panayotis Kyritsis, Christopher Dennison, William McFarlane, Margareta Nordling, Tore Väunngårrd, Simon Young and A. Geoffrey Sykes, pp 2289 DOI:10.1039/DT9930002289

Studies relating to the formation of semi-met CuICuIIpanulirus interruptus haemocyanin Colin R. Andrew, Graeme D. Armstrong, Kieren P. McKillop, G. Arthur Salmon and A. Geoffrey Sykes, pp 2297 DOI:10.1039/DT9930002297

Mechanism of substitution on trinuclear incomplete cuboidal [M3X4(OH2)9]4+ ions: kinetic studies of water exchange and substitution by Cl- on [Mo3S4(OH2)9]4+ David T. Richens, Pierre-Andrá Pittet, Andre E. Merbach, Madelene Humanes, Gert J. Lamprecht, Bee-Lean Ooi and A. Geoffrey Sykes, pp 2305 DOI:10.1039/DT9930002305

Kinetics of the acid dissociation of cyclic and open-chain tetramine complexes of cobalt(II): general acid catalysis with co-ordinating phosphate-citric acid buffers Hanaa A. Gazzaz, Nabawia M. El-Guindi and Abbas A. El-Awady, pp 2313 DOI:10.1039/DT9930002313

Co-ordination chemistry of mixed pyridine-phenol ligands; electrochemical, electron paramagnetic resonance and structural studies on monounclear ruthenium(III) and chromium(III) complexes David A. Bardwell, Daniel Black, John C. Jeffery, Erik Schatz and Michael D. Ward, pp 2321 DOI:10.1039/DT9930002321

Macrocyclic tetranuclear manganese(II) complexes of a new dimer of dimers type: synthesis, structure and magnetism Hiroshi Sakiyama, Ken-ichi Tokuyama, Yukiko Matsumura and Hisashi kawa, pp 2329 DOI:10.1039/DT9930002329

Metallaborane reaction chemistry. Part 1. Two interesting closed cluster compounds from the reaction of acetylene with an open nido-6-iridadecaborane Jonathan Bould, Paul Brint, John D. Kennedy and Mark Thornton-Pett, pp 2335 DOI:10.1039/DT9930002335

Synthesis of [Co2(µ-PPh2C3H4)(µ-PPh2)(CO)4]; its reactions with P(OMe)3 and with alkynes Andrew J. M. Caffyn, Martin J. Mays, Gregory A. Solan, Gráinne Conole and Antonio Tiripicchio, pp 2345 DOI:10.1039/DT9930002345

New intermediates for the synthesis of olefin polymerization catalysts: the complexes [M2(µ-Cl)2Cl4(thf)4](M = Ti or V, thf = tetrahydrofuran); crystal structures and properties Piotr Sobota, Jolanta Ejfler, Sawomir Szafert, Krzysztof Szczegot and Wanda Sawka-Dobrowolska, pp 2353 DOI:10.1039/DT9930002353

Formation of azacrown complexes of Tin(IV): crystal and molecular structure of [H2L]2[SnCl5(H2O)]2·H2O·MeCN (HL = 1,4,7,10,13-pentaoxa-16-azacyclooctadecane) Gerald R. Willey, Martin D. Rudd and Nathaniel W. Alcock, pp 2359 DOI:10.1039/DT9930002359

Photoluminescent properties and molecular structure of [{Au(PPh3)}2(µ-bbzim)] and[{Au(PPh3)}4(µ-bbzim)][ClO4]2(bbziM = 2,2-bibenzimidazolate) Biing-Chiau Tzeng, Dan Li, Shie-Ming Peng and Chi-Ming Che, pp 2365 DOI:10.1039/DT9930002365

Polyoxoanion-supported, atomically dispersed cyclooctadieneruthenium(II) complexes Donato Attanasio, Fiorella Bachechi and Lorenza Suber, pp 2373 DOI:10.1039/DT9930002373

Lanthanide -diketonate glyme complexes exhibiting unusual co-ordination modes Simon R. Drake, Abigail Lyons, David J. Otway, Alexandra M. Z. Slawin and David J. Williams, pp 2379 DOI:10.1039/DT9930002379

Reductions of hexakis(urea)- and hexakis(dimethyl sulfoxide)-manganese(III) by tris(3,4,7,8-tetramethyl-1,10-phenanthroline)iron(II) in acetonitrile Subrata Dasgupta, Eva Vallazza and Roland Schmid, pp 2387 DOI:10.1039/DT9930002387

Synthesis and characterisation of bis(diphenylphosphino)-amine complexes of platinum(II) Pravat Bhattacharyya, Richard N. Sheppard, Alexandra M. Z. Slawin, David J. Williams and J. Derek Woolins, pp 2393 DOI:10.1039/DT9930002393

Kinetics and mechanism of the formation and reactivity of µ-hydroxo-µ-sulfito-bis[bis(1.2-diaminoethane)chromium(III)] Paul T. Maragh and Tara P. Dasgupta, pp 2401 DOI:10.1039/DT9930002401

Comparison of the species formed upon base hydrolyses of gallium(III) and iron(III) aqueous solutions: the possibility of existence of an [FeO4Fe12(OH)24(H2O)12]7+ Polyoxocation Susan M. Bradley and Ronald A. Kydd, pp 2407 DOI:10.1039/DT9930002407

Base hydrolysis of aqueous chromium(III) solutions: on the existence of [Cr(OH)4]-, and speculation regarding a new chromium polyoxocation Susan M. Bradley, Corinne R. Lehr and Ronald A. Kydd, pp 2415 DOI:10.1039/DT9930002415

Dalton communications. Crystal structure of [Na·3thf][Fe(CO)3(SePh)3] and [N(PPh3)2][Fe(CO)3(SePh)3]·0.5thf (thf = tetrahydrofuran): evidence for Na+ sePh and long-range Na+ FeII interactions Wen-Feng Liaw, Chia-Huei Lai, Chen-Kang Lee, Gene-Hsiang Lee and Shie-Ming Peng, pp 2421 DOI:10.1039/DT9930002421

The first structurally characterised early main-group metal diazallyl complex; synthesis and crystal structure of LiCPh(NPh)2·NMe[(CH2)2NMe2]2 Ian Cragg-Hine, Matthew G. Davidson, Francis S. Mair, Paul R. Raithby and Ronald Snaith, pp 2423 DOI:10.1039/DT9930002423

Additions and corrections J. Elaine Barclay, David J. Evans, David L. Hughes and G. Jeffery Leigh, pp 2425 DOI:10.1039/DT9930002425

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viin

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX059

Issue 16

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX061

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP097

Alkali-metal ion complexes of the calixarenes. Part 1. Caesium bonding in calix[4]arene systems Rosemarie Assmus, Volker Böhmer, Jack M. Harrowfield, Mark I. Ogden, William R. Richmond, Brian W. Skelton and Allan H. White, pp 2427 DOI:10.1039/DT9930002427

Low-temperature routes to early transition-metal nitrides Jonathan C. Fitzmaurice, Andrew L. Hector and Ivan P. Parkin, pp 2435 DOI:10.1039/DT9930002435

Preparation and characterisation of (SeNSNS)n(AsF6)2 containing the electron-rich aromatic 6 SeNSNS2+(n= 1) and 7 SeNSNS+(n= 2) Edward G. Awere, Wendell V. F. Brooks, Jack Passmore, Peter S. White, Xiaoping Sun and T. Stanley Cameron, pp 2439 DOI:10.1039/DT9930002439

Spin-state regulation of iron(III) centres by axial ligands with tetradentate bis(picolinamide) in-plane ligands Manabendra Ray, Rabindranath Mukherjee, John F. Richardson and Robert M. Buchanan, pp 2451 DOI:10.1039/DT9930002451

Redox reactions of metallocenes with tungsten and molybdenum hexafluoride Klaus H. Moock and Michael H. Rock, pp 2459 DOI:10.1039/DT9930002459

Synthesis and dioxygen-binding properties of double-sided porphyrinatoiron(II) complexes bearing covalently bound axial imidazole Eishun Tsuchida, Teruyuki Komatsu, Kenji Arai and Hiroyuki Nishide, pp 2465 DOI:10.1039/DT9930002465

Trimethylenemethane complexes of ruthenium, osmium and rhodium via the compound CH2C(CH2SnMe3)2 Gerhard E. Herberich and Thomas P. Spaniol, pp 2471 DOI:10.1039/DT9930002471

Synthesis and proton transfer-linked redox tuning of ruthenium(II) complexes with tridentate 2,6-bis(benzimidazol-2-yl)pyridine ligands Xiao Xiaoming, Masa-aki Haga, Takeko Matsumura-Inoue, Yu Ru, Anthony W. Addison and Kenji Kano, pp 2477 DOI:10.1039/DT9930002477

Radiation-induced reactions of (2-methyl-5-nitro-1H-imidazole-1-ethanol)nickel(II) in aqueous solution: a flash-photolysis and steady-state gamma-radiolysis study Maitrayee Basu Roy, Parikshit C. Mandal and Sudhindra N. Bhattacharyya, pp 2485 DOI:10.1039/DT9930002485

Preparation of some platinum-linked acridines and crystal structure of [3,6-bis(dimethylamino)acridinioethyl]chloro-(N,N,N,N-tetramethylethylenediamine)platinum(II) perchlorate Edmondo Ceci, Renzo Cini, Alexander Karaulov, Michael B. Hursthouse, Luciana Maresca and Giovanni Natile, pp 2491 DOI:10.1039/DT9930002491

Co-ordination number, symmetry of the co-ordination sphere of tin(IV) and oligomerization in carbohydrate complexes of dibutyltin(IV) Kálmán Burger, László Nagy, Norbert Buzás, Attila Vértes and Hartmut Mehner, pp 2499 DOI:10.1039/DT9930002499

Database studies of halide ion pairs with bridging water and NH2 amino molecules Swaroop S. Pathaneni and Gautam R. Desiraju, pp 2505 DOI:10.1039/DT9930002505

A study on the palladium(II)-methionine-2,6-dimethyl-4H-pyran-4-one system Zijian Guo, Umberto Casellato, Giuseppina Faraglia, Rodolfo Graziani and Sergio Sitran, pp 2509 DOI:10.1039/DT9930002509

Formation of mixed spin-state macrocyclic dinickel(II) complexes through variation of hole size Kausik K. Nanda, Ramprasad Das, Krishnan Venkatsubramanian, Parimal Paul and Kamalaksha Nag, pp 2515 DOI:10.1039/DT9930002515

Diamagnetic behaviour of high-resolution nitrogen-14 nuclear magnetic resonance spectra for co-ordinated nitrogens in paramagnetic chromium(III) diamine complexes Takashi Fujihara and Sumio Kaizaki, pp 2521 DOI:10.1039/DT9930002521

Geometrical and orientational isomers of [Fe3(CO)12-nLn](n= 1-3) Brian F. G. Johnson and Yvonne V. Roberts, pp 2525 DOI:10.1039/DT9930002525

Dalton communications. ansa-Bridged tris(cyclopentadienyl) compounds of zirconium and hafnium: X-ray crystal structures of [M{Me2C(5-C5H4)2}(5-C5H5)Cl](M = Zr or Hf) Gary M. Diamond, Malcolm L. H. Green, Neil A. Popham and Alexander N. Chernega, pp 2535 DOI:10.1039/DT9930002535

Crystallographic characterisation of the lattice structure C60·[Fe4(CO)4(5-C5H5)4] as the 1/3 benzene solvate Jonathan D. Crane and Peter B. Hitchcock, pp 2537 DOI:10.1039/DT9930002537

Reversible insertion of an isocyanate into an imido moiety at a dimolybdenum centre. Synthesis and X-ray crystal structure of [Mo2(NPh)2(S2CNEt2)2(µ-NPh){µ-PhNC(O)NPh}] Glyn D. Forster and Graeme Hogarth, pp 2539 DOI:10.1039/DT9930002539

Microwave-assisted solid-state reactions involving metal powders and gases A. Gavin Whittaker and D. Michael P. Mingos, pp 2541 DOI:10.1039/DT9930002541

Letters John D. Kennedy, pp 2545 DOI:10.1039/DT9930002545

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viio

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX063

Issue 17

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX065

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP103

Preparation, characterisation and reactions of tellurocarbonyl difluoride and trifluoromethanetellurenyl iodide Roland Boese, Alois Haas and Christian Limberg, pp 2547 DOI:10.1039/DT9930002547

Formation and protonation of aminopolyphosphonate complexes of alkaline-earth and divalent transition-metal ions in aqueous solution Kiyoshi Sawada, Takashi Kanda, Yasuo Naganuma and Toshio Suzuki, pp 2557 DOI:10.1039/DT9930002557

Synthesis of bis(phosphinomethyl)amines via bis(hydroxymethyl)phosphonium salts. Isolation of 9,9-bis(hydroxymethyl)-9-phosphoniabicyclo[3.3.1]nonane hydrogensulfate and chloride salts, and the crystal structures of [PPh2(CH2OH)2]+ Cl- and [(C6H11)2PCH2]2NCHMePh John Fawcett, Peter A. T. Hoye, Raymond D. W. Kemmitt, David J. Law and David R. Russell, pp 2563 DOI:10.1039/DT9930002563

Synthesis, spectral characterisation and single-crystal structure of a bicyclic tetraphosphapentazane tetraoxide, N5P4ET5O4(OC6H3Me2-2,6)2 Ramaswamy Murugavel, Setharampattu S. Krishnamurthy and Munirathinam Nethaji, pp 2569 DOI:10.1039/DT9930002569

17-Electron alkynyl complexes of cyclopentadienyliron(III) Neil G. Connelly, Maria Pilar Gamasa, Jose Gimeno, Claude Lapinte, Elena Lastra, John P. Maher, Nathalie Le Narvor, Anne L. Rieger and Philip H. Rieger, pp 2575 DOI:10.1039/DT9930002575

Structural studies on bismuth-iodide-hexamethyl-phosphoramide complexes by X-ray crystallography and extended X-ray absorption fine structure spectroscopy William Clegg, Louis J. Farrugia, Andrew McCamley, Nicholas C. Norman, A. Guy Orpen, Nigel L. Pickett and Susan E. Stratford, pp 2579 DOI:10.1039/DT9930002579

Synthesis and spectroscopy of mono- and di-nuclear copper complexes of a pyrazolylcyclotriphosphazene. Crystal structure of an unusual cyclotriphosphazene-bridged dicopper complex K. R. Justin Thomas, Vadapalli Chandrasekhar, Syrona R. Scott, Randal Hallford and A. Wallace Cordes, pp 2589 DOI:10.1039/DT9930002589

Triazolate-containing macrocyclic transition-metal complexes derived from bis(3-aminopropyl)amine and 3,5-diacyl-1,2,4-triazoles Jose A. Duro, Jesús M. Ontoria, Angela Sastre, Wolfram Schäufer and Tomás Torres, pp 2595 DOI:10.1039/DT9930002595

The role of intermediate oxidation states of technetium in catalysis of the oxidation of hydrazine by oxo-anions. Part 1. Nitrate ions Terence J. Kemp, Aubrey M. Thyer and Peter D. Wilson, pp 2601 DOI:10.1039/DT9930002601

The role of intermediate oxidation states of technetium in catalysis of the oxidation of hydrazine by oxo-anions. Part 2. Perchlorate ions Terence J. Kemp, Aubrey M. Thyer and Peter D. Wilson, pp 2607 DOI:10.1039/DT9930002607

Preparation and properties of the high-oxidation-state cuboidal [Mo4S4(H2O)12]6+ ion in aqueous acidic solutions Mao-Chun Hong, Yue-Jin Li, Jiaxi Lu, Mohamed Nasreldin and A. Geoffrey Sykes, pp 2613 DOI:10.1039/DT9930002613

Preparation, structure and reactivity of the binuclear di-µ-oxo-bis[(ethylenediamine-N,N,N,N-tetraacetato)-rhenate(IV)] complex Shinji Ikari, Tasuku Ito, William McFarlane, Mohamed Nasreldin, Bee-Lean Ooi, Yoichi Sasaki and A. Geoffrey Sykes, pp 2621 DOI:10.1039/DT9930002621

New alkynyl- and vinyl-linked benzo- and aza-crown etherbipyridyl ruthenium(II) complexes which spectrochemically recognize Group IA and IIA metal cations Paul D. Beer, Oldrich Kocian, Roger J. Mortimer and Christopher Ridgway, pp 2629 DOI:10.1039/DT9930002629

Hydrogen-bond acceptor abilities of tetrachlorometalate(II) complexes in ionic liquids Peter B. Hitchcock, Kenneth R. Seddon and Thomas Welton, pp 2639 DOI:10.1039/DT9930002639

Synthesis and characterization of nickel(II) complexes containing ligands derived from disaccharides and 1,3-diaminopropane Tomoaki Tanase, Reiko Nouchi, Yukiko Oka, Masako Kato, Nobufumi Nakamura, Takeshi Yamamura, Yasuhiro Yamamoto and Shigenobu Yano, pp 2645 DOI:10.1039/DT9930002645

Subvalent Group 14 metal compounds. Part 16. Synthesis, crystal structure and characterisation of some -functionalised-alkyltin(II) complexes, SnR(X){R = C5H4N[C(SiMe3)2]-2; X = R, Cl or N(SiMe3)2} Brian S. Jolly, Michael F. Lappert, Lutz M. Engelhardt, Allan H. White and Colin L. Raston, pp 2653 DOI:10.1039/DT9930002653

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viip

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX067

Back matter J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BP109

Issue 18

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX069

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP111

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9930000ixc

Dalton perspectives. µ-2:2-Peroxide in biological systems Nobumasa Kitajima and Yoshihiko Moro-oka, pp 2665 DOI:10.1039/DT9930002665

Crystal structures and significance of complexes formed between cadmium bromide and dimethyl sulfoxide Mark Nieuwenhuyzen and Cuthbert J. Wilkins, pp 2673 DOI:10.1039/DT9930002673

Studies on polyoxo- and polyperoxo-metalates. Part 1. Tetrameric heteropolyperoxotungstates and heteropolyperoxomolybdates Andrew C. Dengel, William P. Griffith and Bernardeta C. Parkin, pp 2683 DOI:10.1039/DT9930002683

New dithiolate-bridged rhodium complexes Anna M. Masdeu, Aurora Ruiz, Sergio Castillón, Carmen Claver, Peter B. Hitchcock, Penny A. Chaloner, Carles Bó, Josep M. Poblet and Pedro Sarasa, pp 2689 DOI:10.1039/DT9930002689

Substituted metal carbonyls. Part 24. Heteropolymetallic oligomers [(OC)xM(µ-L-L)M(CO)4(µ-L-L)M(CO)x] and [(OC)5Mn-Mn(CO)4(µ-L-L)M(CO)4(µ-L-L)(OC)4Mn-Mn(CO)5][M = Cr, Mo or W; M= Cr, Mo, W (x= 5) or Fe (x= 4); L-L = Fe(C5H4PPh2)2 or Ph2P(CH2)mPPh2(m= 2 or 3)], with metal carbonyl and diphosphine repeating units Lai-Tee Phang, Kim-Suan Gan, Hian Kee Lee and T. S. Andy Hor, pp 2697 DOI:10.1039/DT9930002697

Optical and magnetic properties of iron(II)-nitrosyl complexes in model compounds Jaqui A. Farrar, Roger Grinter, Dean L. Pountney and Andrew J. Thomson, pp 2703 DOI:10.1039/DT9930002703

Influence of the stereochemistry of water co-ordination to metal(III) cations on the M-O bond length and electronic structure of the cation Stephen P. Best, J. Bruce Forsyth and Philip L. Tregenna-Piggott, pp 2711 DOI:10.1039/DT9930002711

Reaction kinetics and mechanism of formation of [MnMo9O32]6- by hypochlorous acid oxidation of Mn2+(aq) in the presence of molybdate Sarah J. Angus-Dunne, Jenny A. Irwin, Robert C. Burns, Geoffrey A. Lawrance and Donald C. Craig, pp 2717 DOI:10.1039/DT9930002717

Triphenylphosphine-substituted triruthenaborane clusters: a route to [Ru3(CO)9-x(PPh3)xBH5](x= 1-3)via systematic cluster degradation. Molecular structures of [Ru3H(CO)8-(PPh3)(B2H5)] and [Ru3(CO)6(PPh3)3BH5]·CH2Cl2 Catherine E. Housecroft, Dorn M. Matthews, Andrew J. Edwards and Arnold L. Rheingold, pp 2727 DOI:10.1039/DT9930002727

Oxidation of diphosphazane-bridged derivatives of diruthenium nonacarbonyl by silver(I) salts in protic solvents: synthesis, structural characterization and protonation of the adduct [Ru2{µ-2-OC(O)}(CO)4{µ-(RO)2PN(Et)P(OR)2}2](R = Me or Pri) involving a novel mode of co-ordination of carbon dioxide John S. Field, Raymond J. Haines, Jörg Sundermeyer and Stephen F. Woollam, pp 2735 DOI:10.1039/DT9930002735

Structure and dynamics of bis(organothiophosphoryl) disulfides in the solid state. X-Ray diffraction and cross-polarization magic angle spinning nuclear magnetic resonance studies Pawe Knopik, Lech uczak, Marek J. Potrzebowski, Jan Michalski, Jarosaw Baszczyk and Micha W. Wieczorek, pp 2749 DOI:10.1039/DT9930002749

Synthesis and co-ordination chemistry of the sterically demanding pendant-arm macrocycle N,N,N-tris[(2R)-2-hydroxy-3-methylbutyl]-1,4,7-triazacyclononane Ian A. Fallis, Louis J. Farrugia, Norman M. Macdonald and Robert D. Peacock, pp 2759 DOI:10.1039/DT9930002759

Synthesis and co-ordination chemistry of dicobalt-complexed thiacycloalkynes Funda Demirhan, Andrew Gelling, Sevil Irili, John C. Jeffery, Spencer N. Salek, Ozan S. entürk and Michael J. Went, pp 2765 DOI:10.1039/DT9930002765

Structure and stereodynamics of [M(CO)5{P(C6H4Me-o)3}](M = Cr, Mo or W) and [Cr(CO)3{P(C6H4Me-o)3}] James A. S. Howell, Paul C. Yates, Michael G. Palin, Patrick McArdle, Desmond Cunningham, Zeev Goldschmidt, Hugo E. Gottlieb and Daphna Hezroni-Langerman, pp 2775 DOI:10.1039/DT9930002775

Synthesis, characterisation and structure of square-planar palladium(II) complexes with phosphine-pyridine hybrid ligands o-Ph2PC6H4CH2O(CH2)nC5H4N-2 (n= 1-3). Isolation of the first transition-metal complex with a trans-chelating bidentate PN ligand Kazuhide Tani, Masami Yabuta, Shingo Nakamura and Tsuneaki Yamagata, pp 2781 DOI:10.1039/DT9930002781

Luminescence spectroscopic study of europium(III) and terbium(III) with ethylenediamine in dimethyl sulfoxide Zheming Wang, Gregory R. Choppin, Plinio Di Bernardo, Pier-Luigi Zanonato, Roberto Portanova and Marilena Tolazzi, pp 2791 DOI:10.1039/DT9930002791

Free-radical formation in the pulse-radiolysis oxidation of inactive escherichia coli met-R2 ribonucleotide reductase Kin-Yu Lam, K. Govindaraju, Joo-Yeon Han, G. Arthur Salmon and A. Geoffrey Sykes, pp 2797 DOI:10.1039/DT9930002797

Metal complexes of glutamic acid--hydroxamic acid (Glu--ha)(N-Hydroxyglutamine) in aqueous solution Etelka Farkas, David A. Brown, Riccardo Cittaro and William K. Glass, pp 2803 DOI:10.1039/DT9930002803

Reactivity of trialkylphosphine oxide complexes of divalent cobalt, nickel, copper and zinc with sulfur dioxide. Reversible co-ordination of SO2 in ligand-bound adducts Stephen M. Godfrey, Charles A. McAuliffe, Georgia C. Ranger and David G. Kelly, pp 2809 DOI:10.1039/DT9930002809

Hexanuclear arene clusters of ruthenium Paul J. Dyson, Brian F. G. Johnson, David Reed, Dario Braga, Fabrizia Grepioni and Emilio Parisini, pp 2817 DOI:10.1039/DT9930002817

Complexes of the platinum metals. Part 43. N,N-diphenylamidinato derivatives of ruthenium, osmium and iridium Terry Clark and Stephen D. Robinson, pp 2827 DOI:10.1039/DT9930002827

Complexes of the platinum metals. Part 44. Benzamidato and toluamidato derivatives of ruthenium and osmium Michael B. Hursthouse, Muhammed A. Mazid, Stephen D. Robinson and Arvind Sahajpal, pp 2835 DOI:10.1039/DT9930002835

Cyano-linked structures in polymeric cadmium cyanide-pyridine (py) and -isoquinoline (iquin) complexes: crystal structures of [Cd(py)2][Cd(CN)4], [{Cd(CN)(py)2}3][Cd2(CN)7] and [Cd(iquin)2][Cd(CN)3(iquin)2]2 Hidetaka Yuge and Toschitake Iwamoto, pp 2841 DOI:10.1039/DT9930002841

Solid-state and solution structures of some lithium salts of tetraphenyldisiloxanediolate(2-) and the lithium-bridged compounds Li2[M(OSiPh2OSiPh2O)3·3py](py = pyridine, M = Zr or Hf) Majid Motevalli, Dipti Shah and Alice C. Sullivan, pp 2849 DOI:10.1039/DT9930002849

Dalton communications. Valence delocalisation in a triad of binuclear [L(O)VIVOVV(O)L]- species electrogenerated from structurally characterised divanadium(V) analogues (L = tridentate ONO ligand) Joydip Chakravarty, Somnath Dutta and Animesh Chakravorty, pp 2857 DOI:10.1039/DT9930002857

Diastereoisomeric forms of ligand-bridged dimetallic diruthenium(II) and ruthenium(II)-osmium(II) species containing bidentate polypyridyl ligands David A. Reitsma and F. Richard Keene, pp 2859 DOI:10.1039/DT9930002859

A new class of five-co-ordinate titanium complexes containing a polyfunctional amido ligand. Crystal structure of [TiBr2{CH(2-C5H4N)(CH2NSiMe3)2}] Stefan Friedrich, Lutz H. Gade, Andrew J. Edwards and Mary McPartlin, pp 2861 DOI:10.1039/DT9930002861

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX071

Issue 19

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX073

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP119

Reaction studies on heterodinuclear alkanediyl complexes: some examples of metalloselectivity Holger B. Friedrich and John R. Moss, pp 2863 DOI:10.1039/DT9930002863

Synthesis of O-Co-ordinated platinum(II) complexes of carbonyl-stabilized arsonium ylides and the mechanism of conversion to their C-Co-ordinated isomers Giacomo Facchin, Livio Zanotto, Roberta Bertani, Luciano Canovese and Paolo Uguagliati, pp 2871 DOI:10.1039/DT9930002871

Inorganic grignard analogues. Reaction of nickel powder with dihalogenotriorganophosphorus compounds to form nickel-(II) and -(III) phosphine complexes; isolation of planar [Ni(PPh3)I3]- and the crystal structure of [Ni(PPhMe2)2Br2] Stephen M. Godfrey, Charles A. McAuliffe and Robin G. Pritchard, pp 2875 DOI:10.1039/DT9930002875

Group IIA metal -diketonate complexes; the crystal structures of [Sr3(tmhd)6(Htmhd)]·C6H5Me·C5H12 and [Ba4(tmhd)8](Htmhd = 2,2,6,6-tetramethylheptane-3,5-dione) Simon R. Drake, Michael B. Hursthouse, K. M. Abdul Malik and David J. Otway, pp 2883 DOI:10.1039/DT9930002883

Crystal and molecular structure of pentaphenyl-[tris(trimethylsilyl)methyl]diplumbane Siva P. Mallela, Joseph Myrczek, Ivan Bernal and Russell A. Geanangel, pp 2891 DOI:10.1039/DT9930002891

The affinity of bismuth(III) for nitrogen-donor ligands Robert D. Hancock, Ignacy Cukrowski, Johannes Baloyi and Jeremiah Mashishi, pp 2895 DOI:10.1039/DT9930002895

Synthesis and characterization of neutral technetium(III)-99 and -99m complexes with O,P-bidentate phosphino-carboxylate ligands. Crystal structure of mer-[Tc(O2CCH2CH2PPh2)3]·2Me2SO Fiorenzo Refosco, Francesco Tisato, Giuliano Bandoli and Edward Deutsch, pp 2901 DOI:10.1039/DT9930002901

Nickel thioether chemistry: synthesis, structures and electrochemistry of five-co-ordinate nickel(II) complexes of [9]aneS3. Crystal structures of [Ni([9]aneS3)-(dppm)][PF6]2, [Ni([9]aneS3)(dcpe)][PF6]2·1.25MeCN and [Ni([9]aneS3)(tdpme)][PF6]2{[9]aneS3= 1,4,7-Trithiacyclononane, dppm = Ph2PCH2PPh2, dcpe =(C6H11)2-PC2H4P(C6H11)2, tdpme = CH3C(CH2PPh2)3} Alexander J. Blake, Robert O. Gould, Malcolm A. Halcrow and Martin Schröder, pp 2909 DOI:10.1039/DT9930002909

Group 12 complexes of N,N,N,N-tetrakis(2-aminoethyl)-1,4,8,11-tetraazacyclotetradecane (L). Crystal structures of [Zn2(OH)L][CLO4]3 and [Cd2CI(L)][CF3SO3]3 together with formation constant determinations and pKa measurements for the aquated bimetallic species Ling H. Tan, Max R. Taylor, Kevin P. Wainwright and Paul A. Duckworth, pp 2921 DOI:10.1039/DT9930002921

Luminescent gold(I) acetylide complexes. Photophysical and photoredox properties and crystal structure of [{Au(CCPh)}2(µ-Ph2PCH2CH2PPh2)] Dan Li, Xiao Hong, Chi-Ming Che, Wei-Chung Lo and Shie-Ming Peng, pp 2929 DOI:10.1039/DT9930002929

Luminescent platinum(II) complexes. Electronic spectroscopy of platinum(II) complexes of 2,2:6,2-terpyridine (terpy) and p-substituted phenylterpyridines and crystal structure of [Pt(terpy)CI][CF3SO3] Hon-Kay Yip, Luk-Ki Cheng, Kung-Kai Cheung and Chi-Ming Che, pp 2933 DOI:10.1039/DT9930002933

Luminescent heterobimetallic complexes. Electronic structure and spectroscopy of [MPt(dppm)2(CCPh)2]PF6(M = Au or Ag) and crystal structure of [AuPt(dppm)2(CCPh)2]PF6(dppm = Ph2PCH2PPh2) Hon-Kay Yip, Hsui-Mei Lin, Yu Wang and Chi-Ming Che, pp 2939 DOI:10.1039/DT9930002939

On the mechanisms of fluxionality and isomerisation of [Fe3(CO)12-n{P(OMe)3}n](n= 1-3) Brian F. G. Johnson and Yvonne V. Roberts, pp 2945 DOI:10.1039/DT9930002945

Synthesis, molecular and crystal structures of arene derivatives of [Ru6C(CO)17] Dario Braga, Fabrizia Grepioni, Emilio Parisini, Paul J. Dyson, Alexander J. Blake and Brian F. G. Johnson, pp 2951 DOI:10.1039/DT9930002951

Preparation and reactivity of five-membered phosphonickelocycles Guillermo Muller, David Panyella, Mercè Rocamora, Joaquim Sales, Mercè Font-Bardía and Xavier Solans, pp 2959 DOI:10.1039/DT9930002959

Co-ordination of the crown thioether 2,5,8-trithia[9]-o-benzenophane (L1). Synthesis and crystal structures of [CuL1(CI)] and [NiL12][BF4]2 Lluis Escriche, María-Pilar Almajano, Jaume Casabó, Francesc Teixidor, Jordi Rius, Carlos Miravitlles, Raikko Kivekäs and Reijo Sillampää, pp 2969 DOI:10.1039/DT9930002969

Dalton communications. Unusual magnetic and structural one-dimensional nickel(II) azido systems Albert Escuer, Ramon Vicente, M. Salah El Fallah, Joan Ribas, Xavier Solans and Mercé Font-Bardía, pp 2975 DOI:10.1039/DT9930002975

Excited-state properties and reactivity of [ReCL(CO)3(2,2-bipy)](2,2-bipy = 2,2-bipyridyl) studied by time-resolved infrared spectroscopy Michael W. George, Frank P. A. Johnson, Jeremy R. Westwell, P. Michael Hodges and James J. Turner, pp 2977 DOI:10.1039/DT9930002977

Additions and corrections Neil G. Connelly, Maria Pilar Gamasa, Jose Gimeno, Claude Lapinte, Elena Lastra, John P. Maher, Nathalie Le Narvor, Anne L. Rieger and Philip H. Rieger, pp 2981 DOI:10.1039/DT9930002981

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viiq

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX075

Issue 20

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX077

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP125

Dalton perspectives. The synthesis and properties of metal-containing liquid-crystal systems: what can the metal do for you? Duncan W. Bruce, pp 2983 DOI:10.1039/DT9930002983

The dithiooxalate-bridged complex [Cr(C2O2S2)3(NiL)3][ClO4]3(L = racemic 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane): synthesis, crystal structure and magnetism Minoru Mitsumi, Hisashi Ökawa, Hiroshi Sakiyama, Masaaki Ohba, Naohide Matsumoto, Tsutomu Kurisaki and Hisanobu Wakita, pp 2991 DOI:10.1039/DT9930002991

Preparation, spectroscopy and oxidation of [Re(C3S5)3]- and [ReO(C3S5)2]- complexes and crystal structure of [PPh4][ReO(C3S5)2] Gen-etsu Matsubayashi, Takashi Maikawa and Motohiro Nakano, pp 2995 DOI:10.1039/DT9930002995

Mono- and bi-nuclear complexes of ruthenium(II) with the ligand 1-(diphenylphosphino)-2-(2-pyridyl)ethane Luigina Costella, Alessandro Del Zotto, Antonio Mezzetti, Ennio Zangrando and Pierluigi Rigo, pp 3001 DOI:10.1039/DT9930003001

Silver(I) complex formation with phosphorus donors in propylene carbonate: a thermodynamic and spectroscopic investigation Alessandro Del Zotto, Plinio Di Bernardo, Marilena Tolazzi, Giuliana Tomat and Pierluigi Zanonato, pp 3009 DOI:10.1039/DT9930003009

Structural and electronic comparison of 15- to 17-electron dichloro-complexes of molybdenum and rhenium: electrochemical behaviour and crystal structures of trans-[ReCl2(dppe)2]A (A = Cl or BF4; dppe = Ph2PCH2CH2PPh2), trans-[ReCl2(dppe)2] and [NBun4]2[trans-MoCl2(dppe)2][BF4]3 Talib Al Salih, M. Teresa Duarte, João J. R. Frausto da Silva, Adelino M. Galvão, M. Fatima C. Guedes da Silva, Peter B. Hitchcock, David L. Hughes, Christopher J. Pickett, Armando J. L. Pombeiro and Raymond L. Richards, pp 3015 DOI:10.1039/DT9930003015

Formation of cadmium, zinc-bearing ferrites in aqueous suspension by air oxidation Tadao Kanzaki, Noriyasu Kato, Masaya Narita, Katsuyuki Saito, Tadanori Sudo and Kenzo Kitayama, pp 3025 DOI:10.1039/DT9930003025

Bis(-cyclopentadienyl)imido compounds of niobium Alexander N. Chernega, Malcolm L. H. Green and Alejandra G. Suárez, pp 3031 DOI:10.1039/DT9930003031

Oximato complexes. Part 2. Dinuclear dimethylglyoximato complexes of copper(II) with a new co-ordination mode of the oximate ligand Rafael Ruiz, José Sanz, Francesc Lloret, Miguel Julve, Juan Faus, Claudette Bois and M. Carmen Muñoz, pp 3035 DOI:10.1039/DT9930003035

Bis[1,2-bis(dimethylphosphino)ethane]dihydrogenhydridoiron(II) tetraphenylborate as a model for the function of nitrogenases Adrian Hills, David L. Hughes, Manuel Jimenez-Tenorio, G. Jeffery Leigh and Adrian T. Rowley, pp 3041 DOI:10.1039/DT9930003041

Heteronuclear complexes of platinum(II) and copper(I) bridged by alkynyl ligands Shinsaku Yamazaki and Antony J. Deeming, pp 3051 DOI:10.1039/DT9930003051

Trigonal-prismatic and octahedral hexaruthenium boride clusters: molecular structures of [N(PPh3)2][Ru6H2(CO)18B], [Ru6(CO)17B{AuP(C6H4Me-2)3}], [Ru6H(CO)16B{Au(PPh3)}2] and [Ru6(CO)16B{Au(PPh3)}3] Catherine E. Housecroft, Dorn M. Matthews, Anne Waller, Andrew J. Edwards and Arnold L. Rheingold, pp 3059 DOI:10.1039/DT9930003059

Synthesis and magnetic properties of 1:1 salts containing the bis(6-hexamethylbenzene)cobalt cation Dermot O'Hare, Anjana Rai-Chaudhuri and Vince Murphy, pp 3071 DOI:10.1039/DT9930003071

Dinuclear and tandem tetranuclear palladium(II) complexes formed by oxidative addition of 2,6-bis(chloromethyl)-pyridine to [Pd(PPh3)4] Keiko Higashimura and Yukio Nakamura, pp 3075 DOI:10.1039/DT9930003075

Characterisation of hydridopalladium complexes Brian T. Heaton, Sébastien P. A. Hébert, Jonathan A. Iggo, François Metz and Robin Whyman, pp 3081 DOI:10.1039/DT9930003081

Tin-119 Mössbauer and nuclear magnetic resonance studies of organotin compounds. Part 2. Sterically crowded organotin halides and carboxylates Mustafa T. Ahmet, Andrew Houlton, Christopher S. Frampton, John R. Miller, Roger M. G. Roberts, Jack Silver and Bahram Yavari, pp 3085 DOI:10.1039/DT9930003085

The preparation and structure of [Vl2(salen)]·CH2Cl2[salen =N,N-ethylenebis(salicylideneiminate)(2-)] and of some homologues of related Schiff bases David L. Hughes, Uwe Kleinkes, G. Jeffery Leigh, Michael Maiwald, J. Roger Sanders, Claas Sudbrake and Jan Weisner, pp 3093 DOI:10.1039/DT9930003093

Crystal structure of [W(-C6F6)2] synthesised together with other sandwich complexes of tungsten and molybdenum containing 6-C6F6 or 6-C6H3F3-1,3,5 ligands, from atoms of the metals John J. Barker, A. Guy Orpen, Andrew J. Seeley and Peter L. Timms, pp 3097 DOI:10.1039/DT9930003097

Structure and bonding in low-spin octahedral manganese(II) carbonyls: ligand-set control of spin delocalisation Gabino A. Carriedo, Neil G. Connelly, Enrique Perez-Carreno, A. Guy Orpen, Anne L. Rieger, Philip H. Rieger, Victor Riera and Georgina M. Rosair, pp 3103 DOI:10.1039/DT9930003103

Evidence on ligand strengths from the crystal structures of [InCl3(dmf)3], [InCl3(dma)3], [{InCl3(PhCHO)3}2]·PhCHO and [InCl3(PhCOMe)2] from dimethylformamide (dmf), dimethylacetamide (dma), benzaldehyde and acetophenone Songchun Jin, Vickie McKee, Mark Nieuwenhuyzen, Ward T. Robinson and Cuthbert J. Wilkins, pp 3111 DOI:10.1039/DT9930003111

Reactivity of the tripodal trithiol 1,1,1-tris(mercaptomethyl)ethane toward methyl- and ethyl-mercury halides Carlo A. Ghilardi, Stefano Midollini, Annabella Orlandini and Alberto Vacca, pp 3117 DOI:10.1039/DT9930003117

Kinetics and mechanism of iron exchange in a hydroxamate siderophore analogue complex M. Amélia Santos, M. Alexandra Esteves and J. M. G. Martinho, pp 3123 DOI:10.1039/DT9930003123

Synthesis and solution multinuclear nuclear magnetic resonance studies of homoleptic copper(I) complexes of Group 15 donor ligands Jane R. Black, William Levason, Mark D. Spicer and Michael Webster, pp 3129 DOI:10.1039/DT9930003129

The mechanism of iron transferrin interactions. Uptake of the iron nitrilotriacetic acid complex Jean-Michel El Hage Chahine and Dominique Fain, pp 3137 DOI:10.1039/DT9930003137

Dalton communications. Some unusual gold- and rhodium-rhenium clusters Michael I. Bruce, Paul J. Low, Brian W. Skelton and Allan H. White, pp 3145 DOI:10.1039/DT9930003145

An alternative route to cationic metallaheteroboranes George Ferguson, John F. Gallagher, James P. Sheehan, Trevor R. Spalding, John D. Kennedy and Ramón Maciás, pp 3147 DOI:10.1039/DT9930003147

Additions and corrections Jonathan Bould, Paul Brint, John D. Kennedy and Mark Thornton-Pett, pp 3149 DOI:10.1039/DT9930003149

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viir

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX079

Issue 21

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX081

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP131

Reactions of bis[1,2-bis(dialkylphosphino)ethane]-(dihydrogen)hydridoiron(1+) with alkynes David L. Hughes, Manuel Jimenez-Tenorio, G. Jeffery Leigh and Adrian T. Rowley, pp 3151 DOI:10.1039/DT9930003151

The first hydrides of a phosphorus sulfide cage: nuclear magnetic resonance evidence for -tetraphosphorus trisulfide hydride compounds Bruce W. Tattershall and Nigel L. Kendall, pp 3163 DOI:10.1039/DT9930003163

Crystal structure of a carboxylate-bridged chain and a mononuclear complex of nickel and the magnetic behaviour of [Ni(dtma)(Him)]n[ClO4]n(Hdtma = diethylenetriamine-N-acetic acid, Him = imidazole) Zongwan Mao, Degang Fu, Qinwei Hang, Wenxia Tang and Kaibei Yu, pp 3169 DOI:10.1039/DT9930003169

Synthesis, properties and complexation studies on 3-amino-6,6-dimethyl-2,2-bipyridine Georgina V. Long, Sue E. Boyd, Margaret M. Harding, Irmi E. Buys and Trevor W. Hambley, pp 3175 DOI:10.1039/DT9930003175

Donor numbers of anions in solution: the use of solvatochromic Lewis acid-base indicators Wolfgang Linert, Reginald F. Jameson and Ali Taha, pp 3181 DOI:10.1039/DT9930003181

Sterically controlled double nucleophilic addition reactions of (6-arene)(6-[2.2]paracyclophane)ruthenium(II) complexes and reactions to form highly fluxional agostic cyclohexenyls Jonathan W. Steed and Derek A. Tocher, pp 3187 DOI:10.1039/DT9930003187

Synthesis and reactions of -cycloheptatrienyl derivatives of molybdenum Malcolm L. H. Green, Dennis K. P. Ng, Robert C. Tovey and Alexander N. Chernega, pp 3203 DOI:10.1039/DT9930003203

New -cycloheptatrienyl tungsten compounds and the intercalation of [M(-C7H7)(-C5H4Me)](M = Mo or W) into ZrS2 Malcolm L. H. Green, Dennis K. P. Ng and Heng-Vee Wong, pp 3213 DOI:10.1039/DT9930003213

On [(1,2,3,4,5-)-6-(1-ethoxyethyl)-3-mesityl-2,4,6-trimethylcyclohexa-2,4-dienyl]dimesityliridium(III) Robyn S. Hay-Motherwell, Bilquis Hussain-Bates, Michael B. Hursthouse, Brian E. Mann and Geoffrey Wilkinson, pp 3219 DOI:10.1039/DT9930003219

Aluminium carboxylates in aqueous solutions. Part 3. Synthesis and solution state of [Al2(cit)2(H2O)6], [Al2(tart)3(H2O)4] and [Al(gluc)(OH)2](H3cit = citric acid, H2tart = tartaric acid, Hgluc = gluconic acid) Abdiqafar A. Sheikh-Osman, Roberta Bertani, Andrea Tapparo, G. Giorgio Bombi and Benedetto Corain, pp 3229 DOI:10.1039/DT9930003229

Crystal structure, infrared and 31P nuclear magnetic resonance studies of complexes of tris(2,4,6-trimethoxyphenyl)phosphine with mercury(II) halides Lisa-Jane Baker, Graham A. Bowmaker, Brian W. Skelton and Allan H. White, pp 3235 DOI:10.1039/DT9930003235

Absorption and emission properties of a 2-catenand, its protonated forms, and its complexes with Li+, Cu+, Ag+, Co2+, Ni2+, Zn2+, Pd2+ and Cd2+: tuning of the luminescence over the whole visible spectral region Nicola Armaroli, Luisa De Cola, Vincenzo Balzani, Jean-Pierre Sauvage, Christiane O. Dietrich-Buchecker, Jean-Marc Kern and Abdelhakim Bailal, pp 3241 DOI:10.1039/DT9930003241

Mono- and di-bridged µ-oxo diiron complexes of 3-[bis(2-pyridylmethyl)amino]propionate (bpp). Crystal structures of [{Fe(bpp)(H2O)}2O][ClO4]2·H2O and [{Fe(bpp)}2(MeCO2)O][ClO4]·4.5H2O Alan Hazell, Kenneth B. Jensen, Christine J. McKenzie and Hans Toftlund, pp 3249 DOI:10.1039/DT9930003249

Crystal structure of [Li(tmen)2][Li{C(SiMe3)3}2]. A multinuclear magnetic resonance study of tris(trimethylsilyl)methyllithium-tetrahydrofuran(1/2) and -N,N,N,N-tetramethylethylenediamine (1/1)(tmen) Anthony G. Avent, Colin Eaborn, Peter B. Hitchcock, Gerard A. Lawless, Paul D. Lickiss, Michael Mallien, J. David Smith, Alex D. Webb and Bernd Wrackmeyer, pp 3259 DOI:10.1039/DT9930003259

Dalton communications. The broken cube polymer structure of (LiBr·thf)(thf = tetrahydrofuran) Andrew J. Edwards, Michael A. Paver, Paul R. Raithby, Christopher A. Russell and Dominic S. Wright, pp 3265 DOI:10.1039/DT9930003265

Reduction of carbon dioxide by nickel macrocyclic catalysts adsorbed on a mercury electrode or a copper rotating disc electrode Caroline I. Smith, Joe A. Crayston and Robert W. Hay, pp 3267 DOI:10.1039/DT9930003267

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viis

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX083

Issue 22

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX085

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP137

Optically active asymmetric bidentate ligands. Crystal and molecular structure of {(R), (S)-(-)589-2-[1-(dimethylamino)ethyl]phenyl-C2,N}[1-(diphenylphosphino)-2-(methylphenylphosphino) benzene-P,P]palladium(II) hexafluorophosphate Neil Gabbitas, Geoffrey Salem, Meta Sterns and Anthony C. Willis, pp 3271 DOI:10.1039/DT9930003271

Synthesis and magnetic properties of iron(III) complexes bridged by 1,1-tetramethylenediimidazole exhibiting an infinite zigzag-chain structure Mika Fukuya, Masaaki Ohba, Ken-ichiro Motoda, Naohide Matsumoto, Hisashi kawa and Yonezo Maeda, pp 3277 DOI:10.1039/DT9930003277

Removal of oxide contamination from ambient-temperature chloroaluminate(III) ionic liquids Ala'a K. Abdul-Sada, Anthony G. Avent, Michael J. Parkington, T. Anthony Ryan, Kenneth R. Seddon and Thomas Welton, pp 3283 DOI:10.1039/DT9930003283

Reactions of [Ru{C6H4(NH)2-1,2}(PPh3)3] with Group 6 metal carbonyls. Crystal structure and reactivity with diphosphines of the linear heterotrinuclear complex [Ru2Mo{µ-C6H4(NH)2-1,2}2(CO)6(PPh3)2] Adela Anillo, Santiago García-Granda, Ricardo Obeso-Rosete and Juan Manuel Rubio-González, pp 3287 DOI:10.1039/DT9930003287

Rate constants for thiocyanate substitution at Mo and W on the trinuclear incomplete-cuboidal clusters [Mo2WS4(H2O)9]4+ and [MoW2S4(H2O)9]4+ Jane E. Varey and A. Geoffrey Sykes, pp 3293 DOI:10.1039/DT9930003293

Cluster chemistry. Part 91. Clusters derived from 1,4-Bis (diphenylphosphino)buta-1,3-diyne and their pyrolysis products: a route to complexes containing the tetracarbon ligand Chris J. Adams, Michael I. Bruce, Ernst Horn, Brian W. Skelton, Edward R. T. Tiekink and Allan H. White, pp 3299 DOI:10.1039/DT9930003299

Cluster chemistry. Part 92. Directed syntheses and crystal structures of [{Ru3(CO)11}{µ-PPh2[C2CO2(CO)6]C2}{Ru2-(µ-PPh2)(CO)6}]·CH2Cl2, [{Os3(CO)11}(µ-PPh2C2C2){Co2Os3-(µ-PPh2)(CO)13}] and [Co2Os3Re{µ6-C2Cch (PPh2)}-(µ-PPh2)(µ-CO)2(CO)14·CH2Cl2 Chris J. Adams, Michael I. Bruce, Ernst Horn, Brian W. Skelton, Edward R. T. Tiekink and Allan H. White, pp 3313 DOI:10.1039/DT9930003313

Reductive dimerization of [Mo(C6F5)(CO)2(-C7H7)]. Synthesis and characterization of the bitropyl complex [{Mo(C6F5)(CO)2}2(6:6-C14H14)]2- Mingzhong Su, Stephen L. Gipson, Donald F. Mullica, Eric L. Sappenfield and Dale Hugo Leschnitzer, pp 3323 DOI:10.1039/DT9930003323

Studies of the bonding in iron(II) cyclopentadienyl and arene sandwich compounds. Part 4. A survey of the effect of methyl substitution on the bonding in some iron sandwich complexes Richard A. Brown, Andrew Houlton, Steven D. Howe, Roger M. G. Roberts and Jack Silver, pp 3329 DOI:10.1039/DT9930003329

Transition-metal complexes of crown ether benzodithiolenes. Part 2. The effects of alkali-metal cation binding Nigel D. Lowe and C. David Garner, pp 3333 DOI:10.1039/DT9930003333

Synthesis and reactions of tungsten(II) norbornadiene (nbd) complexes. The crystal and molecular structure of [WBr(SC6F5)(CO)2(nbd)] Laurence Carlton, Jack L. Davidson, Giuseppe Vasapollo, Graeme Douglas and Kenneth W. Muir, pp 3341 DOI:10.1039/DT9930003341

Structural and solution study on binary peptide and ternary peptide-nucleobase complexes of palladium(II) Markus Wienken, Ennio Zangrando, Lucio Randaccio, Stephan Menzer and Bernhard Lippert, pp 3349 DOI:10.1039/DT9930003349

Neutron diffraction study of fac-[IrH3(PPh2Me)3]·MeOH Robert Bau, Christina J. Schwerdtfeger, Luigi Garlaschelli and Thomas F. Koetzle, pp 3359 DOI:10.1039/DT9930003359

Magnetic properties and crystal structure of a linear-chain copper(II) compound with bridging chloride and oxamidate ligands Andrea Cornia, Antonio C. Fabretti, Fabrizio Ferraro, Dante Gatteschi and Aleardo Giusti, pp 3363 DOI:10.1039/DT9930003363

Interaction of zinc and cadmium Bis(benzothiazole-2-thiolates) with nitrogen bases Ricardo Baggio, María Teresa Garland and Mireille Perec, pp 3367 DOI:10.1039/DT9930003367

Controlled reaction of molecular oxygen with [Mnl2(PPh2Me)2] to form the mixed phosphine-phosphine oxide complex [Mnl2(OPPh2Me)(PPh2Me)] and the Bis(phosphine oxide) complex [Mnl2(OPPh2Me)2] Stephen M. Godfrey, Charles A. McAuliffe, Peter T. Ndifon and Robin G. Pritchard, pp 3373 DOI:10.1039/DT9930003373

Complexation of manganese(II) and zinc(II) ions with pyridine, 3-methylpyridine and 4-methylpyridine in dimethylformamide Makoto Kurihara, Kazuhiko Ozutsumi and Takuji Kawashima, pp 3379 DOI:10.1039/DT9930003379

Triosmium clusters with 2-pyridylphosphines as ligands Antony J. Deeming and Martin B. Smith, pp 3383 DOI:10.1039/DT9930003383

Cytotoxicity and antiviral activity of transition-metal salicylato complexes and crystal structure of Bis(diisopropylsalicylato)(1,10-phenanthroline)copper(II) John D. Ranford, Peter J. Sadler and Derek A. Tocher, pp 3393 DOI:10.1039/DT9930003393

Di-, tri- and tetra-nuclear gold(I) complexes with Tris(diphenylphosphino)-methane or -methanide as ligand. Crystal structures of two modifications of [(O)Ph2PC(PPh2AuPPh2)2CPPh2(O)]·4CH2Cl2 Eduardo J. Fernández, M. Concepción Gimeno, Peter G. Jones, Antonio Laguna, Mariano Laguna and José M. López-de-Luzuriaga, pp 3401 DOI:10.1039/DT9930003401

Crown ether complexation of scandium(III), yttrium(III) and lanthanum(III) halides. Synthesis and spectroscopic characterisation of anhydrous cationic metal-oxacrown species and crystal structure of a scandium benzocrown Gerald R. Willey, Miles T. Lakin and Nathaniel W. Alcock, pp 3407 DOI:10.1039/DT9930003407

Simultaneous binding of betaine and pseudohalide to cadmium: structures of four polymeric mixed-ligand cadmium(II) complexes Mok-Yin Chow, Xiao-Ming Chen and Thomas C. W. Mak, pp 3413 DOI:10.1039/DT9930003413

Trigonal-bipyramidal co-ordinatively saturated platinum(II) olefin complexes bearing an organomercury fragment in axial position Maria Elena Cucciolito, Federico Giordano, Achille Panunzi, Francesco Ruffo and Vincenzo De Felice, pp 3421 DOI:10.1039/DT9930003421

Synthesis, characterization and crystal structure of complexes of thorium(IV) nitrate with n,n,n,n,-tetraphenyl-3,6-dioxaoctanediamide Weisheng Liu, Minyu Tan, Kaibei Yu and Ganzu Tan, pp 3427 DOI:10.1039/DT9930003427

The mechanisms of protonation of [M(5-C5H5)2H2](M = Mo or W) Richard A. Henderson and Kay E. Oglieve, pp 3431 DOI:10.1039/DT9930003431

Synthesis of 5-ansa-zirconocene complexes and crystal structure of [Zr{C6H4(CH2C5H4)2-1,3}Cl2] Changtao Qian, Jianhua Guo, Changqing Ye, Jie Sun and Peiju Zheng, pp 3441 DOI:10.1039/DT9930003441

Metallation of the acyclic phosphazene ligand HN[P(NMe2)2NSiMe3]2. Synthesis and crystal structure of {NaN[P(NMe2)2NSiMe3]2}2, {KN[P(NMe2)2NSiMe3]2} and Ca{N[P(NMe2)2NSiMe3]2}2 Reinhard Hasselbring, Sushil K. Pandey, Herbert W. Roesky, Dietmar Stalke and Alexander Steiner, pp 3447 DOI:10.1039/DT9930003447

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viit

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX087

Back matter J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BP143

Issue 23

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX089

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP145

New confacial bioctahedral diplatinum(IV) complexes with 3-aminoalkanethiolate bridges William Clegg, Núria Duran, Kelly Anne Fraser, Pilar González-Duarte, Joan Sola and Ian C. Taylor, pp 3453 DOI:10.1039/DT9930003453

Complexes of 2-aminophenol (H2amp) and its derivatives and the crystal structure of cis-[MoO2(Hamp)2] William P. Griffith, Tse Yuen Koh and David J. Williams, pp 3459 DOI:10.1039/DT9930003459

Interaction of bis(1,2,6,7-tetracyano-3,5-dihydro-3,5-diiminopyrrolizinide) metal complexes with phenazine and derivatives. Crystal structures of addition compounds of the nickel(II) complex with phenazine and 5,10-dimethyl-5,10-dihydrophenazine Mario Bonamico, Vincenzo Fares, Alberto Flamini, Nicola Poli, Yoshiro Yamashita and Kenichi Imaeda, pp 3463 DOI:10.1039/DT9930003463

New Group 2 metal hydrazinecarboxylates: a novel co-ordination mode for hydrazinecarboxylate in a polymeric, ten-co-ordinate barium complex Dennis A. Edwards, John F. Keily, Mary F. Mahon, Kieran C. Molloy and David Thompsett, pp 3471 DOI:10.1039/DT9930003471

The ligand-substitution reactions of aquahydroxocobinamide proceed through a dissociative interchange mechanism Helder M. Marques, Julia C. Bradley, Kenneth L. Brown and Harold Brooks, pp 3475 DOI:10.1039/DT9930003475

Iminoaminosulfinates: synthesis, crystal structures, and rearrangement monitored by lithium-7 solid-state nuclear magnetic resonance spectroscopy Stefanie Freitag, Waclaw Kolodziejski, Frank Pauer and Dietmar Stalke, pp 3479 DOI:10.1039/DT9930003479

Oxidation of biological substrates by chromium(VI). Part 1. Mechanism of the oxidation of L-ascorbic acid in aqueous solution Donovan A. Dixon, Novelette P. Sadler and Tara P. Dasgupta, pp 3489 DOI:10.1039/DT9930003489

Occurrence of a manganese(III) intermediate in the [MnO4]--SO2 redox reaction Chaitali Bhattacharjee, Mihir K. Chaudhuri, Gagan C. Mandal, Pradip C. Paul and Pendyala Srinivas, pp 3497 DOI:10.1039/DT9930003497

Hydrogen-bonded adducts of ferrocene-1,1-diylbis-(diphenylmethanol): crystal and molecular structures of adducts with methanol (1 : 1) and pyridine (1 : 2) George Ferguson, John F. Gallagher, Christopher Glidewell and Choudhury M. Zakaria, pp 3499 DOI:10.1039/DT9930003499

Interaction of lead(II) with highly-dentate linear and cyclic polyamines Antonio Andrés, Andrea Bencini, Andreas Carachalios, Antonio Bianchi, Paolo Dapporto, Enrique García-España, Piero Paoletti and Paola Paoli, pp 3507 DOI:10.1039/DT9930003507

Preparation and crystal structure of a seven-co-ordinated oxotungsten(IV) complex of 2,2:6,2:6,2-quaterpyridine San-Ming Yang, Kung-Kai Cheung and Chi-Ming Che, pp 3515 DOI:10.1039/DT9930003515

Synthesis and characterization of halogeno- and pseudo-halogeno-thallium(III) porphyrin complexes. Variation of the co-ordination geometry as a function of the axial ligand Mathias O. Senge, Karin Ruhlandt-Senge, Kevin J. Regli and Kevin M. Smith, pp 3519 DOI:10.1039/DT9930003519

Prevention of out-of-plane macrocycle distortion by thallium in the sterically strained 2,3,7,8,12,13,17,18-octaethyl-5,10,15,20-tetranitroporphyrin Mathias O. Senge, pp 3539 DOI:10.1039/DT9930003539

Alkyne-carbaborane coupling at a molybdenum centre: crystal structure of [closo-3,3,3-(CO)3-8,3-{:2-C(H)C(H)-SiMe3}-3,1,2-MoC2B9H10] Stephen J. Dossett, Sihai Li, Donald F. Mullica, Eric L. Sappenfield and F. Gordon A. Stone, pp 3551 DOI:10.1039/DT9930003551

Tricarbonyl(carbaborane) complexes of the Group 6 metals as reagents for preparing heteronuclear trimetal compounds involving rhodium Donald F. Mullica, Eric L. Sappenfield, F. Gordon A. Stone and Stephen F. Woollam, pp 3559 DOI:10.1039/DT9930003559

Transition-metal complexes of di- and tri-phosphines derived from 1,1-bis(diphenylphosphinomethyl)ethene Jonathan L. Bookham, William Clegg, William McFarlane and Eric S. Raper, pp 3567 DOI:10.1039/DT9930003567

Brominated short-chain basket-handle porphyrins and their copper(II) derivatives: spectral and electrochemical studies on the effect of -substitution versus distortion Damodar Reddy, Mangalampalli Ravikanth and Tavarekere K. Chandrashekar, pp 3575 DOI:10.1039/DT9930003575

Differential reactivity pattern for the condensation reactions of copper(II) complexes of DL- and L-amino acids Chepuri R. K. Rao, Navamoney Arulsamy, Panthappally S. Zacharias and Derek J. Hodgson, pp 3581 DOI:10.1039/DT9930003581

Synthesis and structural, thermal and electrical properties of piperazinium lodocuprates(I) Anna Bonamartini Corradi, Maria R. Cramarossa, Tiziano Manfredini, Luigi P. Battaglia, Giorgio Pelosi, Andrea Saccani and Franco Sandrolini, pp 3587 DOI:10.1039/DT9930003587

Electrochemical, electron spin resonance and nuclear magnetic resonance investigations of tertiary phosphine complexes of nickel. Part 1. Mono- and di-nuclear nickel dithiolene and nickel dihalide species Graham A. Bowmaker and Julian P. Williams, pp 3593 DOI:10.1039/DT9930003593

Interaction of cyanide with iron(II) phthalocyanine: kinetics and equilibria Tebello Nyokong, pp 3601 DOI:10.1039/DT9930003601

Redox chemistry of [Fe2(CN)10]4-. Part 2. Reaction with thiosulfate Tara P. Dasgupta, Floyd A. Beckford and Geoffrey Stedman, pp 3605 DOI:10.1039/DT9930003605

Compounds with vanadium-nitrogen and vanadium-oxygen multiple bonds Adrian Hills, David L. Hughes, G. Jeffery Leigh and Rafael Prieto-Alcón, pp 3609 DOI:10.1039/DT9930003609

Orthometallated primary amines. Part 1. Facile preparation of the first optically active cyclopalladated primary amines José Vicente, Isabel Saura-Llamas and Peter G. Jones, pp 3619 DOI:10.1039/DT9930003619

Binuclear pyrazolato-bridged platinum(II) complexes: synthesis, characterization and crystal structure Vimal K. Jain, Shanmugapenumal Kannan and Edward R. T. Tiekink, pp 3625 DOI:10.1039/DT9930003625

Dalton communications. Synthesis and structural characterization of an Au-P linked chain polymer. The molecular structure of two pseudo-polymorphic forms of [{AuCl(µ-dppf)}n][dppf = 1,1-bis(diphenylphosphino)ferrocene] Andrew Houlton, D. Michael P. Mingos, Don M. Murphy, David J. Williams, Lai-Tee Phang and T. S. Andy Hor, pp 3629 DOI:10.1039/DT9930003629

Catalytic hydrolysis of 2,3-cyclic adenosine monophosphate by aqua(2,2:6,2-terpyridine)copper(II): breakdown of the analogy between activated phosphodiesters and RNA James K. Bashkin and Lisa A. Jenkins, pp 3631 DOI:10.1039/DT9930003631

Synthesis and crystal structure determination of a novel -dawson mixed-valence octadecatungstoperchlorate Si-San Zhu, Bin Yue, Xiao-Qun Shi, Yi-Dong Gu, Jie Liu, Min-Qing Chen and Yue-Fang Huang, pp 3633 DOI:10.1039/DT9930003633

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viiu

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX091

Issue 24

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FX093

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300FP151

When does a nitrogen attached to a 3-phosphorus assume a pyramidal geometry? Crystal structures of Group 6 metal carbonyl complexes of isomeric forms of 3-cyclotriphosphazanes Ramaswamy Murugavel, Setharampattu S. Krishnamurthy and Munirathinam Nethaji, pp 3635 DOI:10.1039/DT9930003635

Photoelectrochemistry of some organochromium carbonyl compounds Richard G. Compton, Roula Barghout, John C. Eklund, Adrian C. Fisher, Stephen G. Davies, Michael R. Metzler, Alan M. Bond, Ray Colton and Jacky N. Walter, pp 3641 DOI:10.1039/DT9930003641

Dioxygen adducts of cobalt(II) complexes of 6,6-bis(p-substituted benzoylamino)-2,2-bipyridines and their catalytic activities in oxygenation of 2,6-di-tert-butylphenol Koji Araki, Takashi Kuboki, Makihiro Otohata, Nobuyuki Kishimoto, Masaki Yamada and Shinsaku Shiraishi, pp 3647 DOI:10.1039/DT9930003647

Reactions of an azine diphosphine with platinum(II) and palladium(II) and the formation of a novel heterocyclic diphosphine ligand. Crystal structure of [Pdl2{PPh2CHC(But)N-NC(But)CH2PPh}] Sarath D. Perera, Bernard L. Shaw and Mark Thornton-Pett, pp 3653 DOI:10.1039/DT9930003653

Electrophilically promoted cyanide abstraction in diiron cyano(amino) alkylidene complexes: molecular structure of [Fe2(CO)2(-C5H5)2(µ-CO){µ-CN(CH2)4CH2}][(OC)5WCNW(CO)5] Vincenzo G. Albano, Luigi Busetto, Carlo Castellari, Magda Monari, Antonio Palazzi and Valerio Zanotti, pp 3661 DOI:10.1039/DT9930003661

Selective carbonyl insertion and ethene hydroformylation on a [Ru6C(CO)16Me]--SiO2 catalyst Yasuo Izumi, Teiji Chihara, Hiroshi Yamazaki and Yasuhiro Iwasawa, pp 3667 DOI:10.1039/DT9930003667

Synthesis and characterization of cis-(2,2-bipyridine)(2,2-biquinoline) dichlororuthenium(II) and its co-ordination chemistry with imidazole derivatives Michiel Heijden, Paul M. Van Vliet, Jaap G. Haasnoot and Jan Reedijk, pp 3675 DOI:10.1039/DT9930003675

Synthesis and characterization of novel binuclear chromium(III) complexes bridged by aromatic heterocyclic compounds Manabu Nakahanada, Kazuhito Ino and Sumio Kaizaki, pp 3681 DOI:10.1039/DT9930003681

Synthetic strategy, magnetic and spectroscopic properties of the terpyridine complexes [Cu(terpy)X(H2O)n]Y (X = NCO, NCS or N3; n= 0 or 1; Y = NO3 or PF6). Crystal structures of the azidenitrate and azidehexafluoro-phosphate Roberto Cortés, M. Karmele Urtiaga, Luis Lezama, Jose Ignacio R. Larramendi, M. Isabel Arriortua and Teófilo Rojo, pp 3685 DOI:10.1039/DT9930003685

Iron-sulfur clusters in ionic polymers on electrodes Christopher J. Pickett, Karl S. Ryder and Jean-claude Moutet, pp 3695 DOI:10.1039/DT9930003695

The preparation and characterisation of some aminesulfoxidedichloroplatinum(II) complexes Edwina C. H. Ling, Gregory W. Allen and Trevor W. Hambley, pp 3705 DOI:10.1039/DT9930003705

The trans influence in [RH(Ph3)3Cl]: a density functional theory study Robert J. Deeth, pp 3711 DOI:10.1039/DT9930003711

Photochemical synthesis and crystal structures of tetrakis(ethane-1,2-diamine) dicobalt(III) complexes bridged by 1,3,5-triazine-2,4,6-trithionate and 4-oxo-1,3,5-triazine-2,6-dithionate Kazuaki Yamanari, Yoshinori Kushi, Masahiro Yamamoto, Akira Fuyuhiro, Sumio Kaizaki, Tatsuya Kawamoto and Yoshihiko Kushi, pp 3715 DOI:10.1039/DT9930003715

Observation of the longst Fe-N(pyridine) bond in an FeIIN6 chromophore. Crystal structure and 1H nuclear magnetic resonance studies of [FeL22][ClO4]2[L2= 2-(3,5-dimethylpyrazol-1-ylmethyl)-6-(pyrazol-1-ylmethyl)pyridine] Samiran Mahapatra, Ray J. Butcher and Rabindranath Mukherjee, pp 3723 DOI:10.1039/DT9930003723

Solvent control of structural type: three different structures from the reaction of a dimeric copper complex with lanthanum nitrate in three different solvents Alexander J. Blake, Paul E. Y. Milne and Richard E. P. Winpenny, pp 3727 DOI:10.1039/DT9930003727

Syntheses of the cyclic platinum(II) thiolate complexes [Pt{SCH2C(O)CH2}(PPh3)2] and [{Pt[SCH2C(O)CH2](PPh3)}2] Anthony M. Cartner, John Fawcett, William Henderson, Raymond D. W. Kemmitt, Peter McKenna and David R. Russell, pp 3735 DOI:10.1039/DT9930003735

Synthesis and crystal structure of [Co(CO)4(H7Si8O12)]. A new type of monosubstituted octanuclear silasesquioxane with a silicon-cobalt bond Gion Calzaferri, Roman Imhof and Karl W. Törnroos, pp 3741 DOI:10.1039/DT9930003741

Variable Co-ordination behaviour of ethyne and other alkynes towards the diruthenium complexes [Ru2(µ-CO)-(CO)4{(RO)2PN(Et)P(OR)2}2] and [Ru2(µsb-CO)2(CO)2-{(RO)2PN(Et)P(OR)2}2](sb = semi-bridging, R = Me or Pri) John S. Field, Raymond J. Haines, Jörg Sundermeyer and Stephen F. Woollam, pp 3749 DOI:10.1039/DT9930003749

The - and -bonding modes of a tetraanionic porphyrinogen ligand in zirconium(IV) complexes: a theoretical investigation Angela Rosa, Giampaoio Ricciardi, Marzio Rosi, Antonio Sgamellotti and Carlo Floriani, pp 3759 DOI:10.1039/DT9930003759

Dimorphs of [1,2-bis(diphenylphosphino)ethane]dichloronickel(II) Richard Busby, Michael B. Hursthouse, Penelope S. Jarrett, Christian W. Lehmann, K. M. Abdul Malik and Coral Phillips, pp 3767 DOI:10.1039/DT9930003767

Kinetics and mechanism of the reaction between chromium(II) and 1,2-bis(2-pyridyl)ethylene in acidic aqueous solutions Athinoula L. Petrou, pp 3771 DOI:10.1039/DT9930003771

Structure and thermodynamic properties of aminopoly-phosphonate complexes of the alkaline-earth metal lons Kiyoshi Sawada, Toshihiko Miyagawa, Tomoko Sakaguchi and Kunio Doi, pp 3777 DOI:10.1039/DT9930003777

Reactions of co-ordinated ligands. Part 57. Synthesis, structure and interrelationship of 2--butadienyl and cationic (1,2,3-)-trans-butadienyl-platinum and -palladium complexes; crystal structures of cis-[PtCl{-C(CH2)C(Et)CH2}(dppf)] and [Pt{(1,2,3-)-trans-CH2C(Et)CCH2}(PPh3)2][PF6][dppf = 1,1-bis(diphenylphosphino)ferrocene] Stephen A. Benyunes, Lutz Brandt, Arno Fries, Michael Green, Mary F. Mahon and Trevor M. T. Papworth, pp 3785 DOI:10.1039/DT9930003785

Halogenotrimethylplatinum(IV) complexes of 2,6-bis(p-tolylthiomethyl)pyridine (L1): nuclear magnetic resonance studies of their solution state stereodynamics and the crystal structure of fac-[PtBrMe3L1] Edward W. Abel, Peter J. Heard, Keith G. Orrell, Michael B. Hursthouse and Mohammed A. Mazid, pp 3795 DOI:10.1039/DT9930003795

Synthesis, crystal structure and magnetic properties of [Cu6(tidah)2Cl10(H2O)4]·6H2O [Htidah = 1,1,6,6-tetrakis-(imidazol-2-yl)-2,5-diazahexane], a unique imidazolato- and chloro-bridged hexanuclear copper(II) compound G. J. Anthony A. Koolhaas, Willem L. Driessen, Petra J. Van Koningsbruggen, Jan Reedijk and Anthony L. Spek, pp 3803 DOI:10.1039/DT9930003803

Crystal and molecular structure of diindium triphthalocyaninate at 300 K Jan Janczak and Ryszard Kubiak, pp 3809 DOI:10.1039/DT9930003809

Salicylato (sal) complexes of second- and third-row transition elements, and the crystal structure of [NMe4]2[MoO2(sal)2]·2H2O Catherine F. Edwards, William P. Griffith, Andrew J. P. White and David J. Williams, pp 3813 DOI:10.1039/DT9930003813

Dalton communications. Unusual specificity in alkylation reactions of a nickel(II) cyclidene macrocyclic complex James H. Cameron and Elinor L. Scott, pp 3821 DOI:10.1039/DT9930003821

Geometrical significance of a µ-phenoxo-bis(µ-carboxylato)dimanganese core as an active-site model of manganese catalase Hiroshi Sakiyama, Hisashi kawa and Masatatsu Suzuki, pp 3823 DOI:10.1039/DT9930003823

A simple route to amide-functionalized tetravalent metal phosphonates. Interlayer amidation of an ethylenediammonium exchanged form of zirconium carboxyethylphosphonate Tsuyoshi Kijima, Yoshinori Kawagoe, Kenji Mihara and Masato Machida, pp 3827 DOI:10.1039/DT9930003827

Synthesis and crystal structure of a novel hexaaza macrocyclic ligand with 2-hydroxy-3,5-dimethylbenzyl pendant arms and its gadolinium(III) complex S. W. Annie Bligh, Nick Choi, W. Jon Cummins, Evagoras G. Evagorou, J. Duncan Kelly and Mary McPartlin, pp 3829 DOI:10.1039/DT9930003829

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT993000viii

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99300BX095