1995 year
Main Index

Issue 1

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX001

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP001

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500000ix

Editorial J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9950000vii

Metal-dinitrogen - and -bonding roles in [Fe(dmpe)2H(N2)]+, [Fe(depe)2(N2)] and trans-[V(dmpe)2(N2)2]-(dmpe = Me2PCH2CH2PMe2, depe = Et2PCH2CH2PEt2) Robert J. Deeth and Sarah A. Langford, pp 1 DOI:10.1039/DT9950000001

Five-co-ordinate complexes [MoH(SC6H2R3-2,4,6)3(PRPh2)](R = Me or Pri, R= Me or Et) and their reactions with nitrogen donors. Crystal structures of [MoH(SC6H2Pri3-2,4,6)3(C5H5N)(PMe2Ph)], [MoH(NC5H4S-2)2(SC6H2Pri3-2,4,6)(PEtPh2)] and [PPh4][MoO(SC6H2Pri3-2,4,6)4] David L. Hughes, Natalie J. Lazarowych, Michael J. Maguire, Robert H. Morris and Raymond L. Richards, pp 5 DOI:10.1039/DT9950000005

Synthesis and spectroscopic properties of di-2-pyridyl sulfide (dps) compounds. Crystal structure of [Ru(dps)2Cl2] Giuseppe Bruno, Franco Nicolò, Sanda Lo Schiavo, Maria S. Sinicropi and Giuseppe Tresoldi, pp 17 DOI:10.1039/DT9950000017

Zirconium complexes incorporating the new tridentate diamide ligand [(Me3 Si)N{CH2CH2N(SiMe3)}2]2-(L); the crystal structures of [Zr(BH4)2L] and [ZrCl{CH(SiMe3)2}L] F. Geoffrey N. Cloke, Peter B. Hitchcock and Jason B. Love, pp 25 DOI:10.1039/DT9950000025

Comparative study of the catalytic oxidation of catechols by copper(II) complexes of tripodal ligands Mitchell R. Malachowski, Hong B. Huynh, Laura J. Tomlinson, Richard S. Kelly and James W. Furbee jun. , pp 31 DOI:10.1039/DT9950000031

Structure and magnetism of electronically distorted iron(III) Schiff-base complexes Cynthia T. Brewer, Greg Brewer, Geoffrey B. Jameson, Peter Kamaras, Leopold May and Miroslav Rapta, pp 37 DOI:10.1039/DT9950000037

2,2-Bipyridine complexes of the lithium chalcogenolates Li(EPh) and Li(NC5H4E-2)(E = S or Se) Dilip V. Khasnis, Mihai Buretea, Thomas J. Emge and John G. Brennan, pp 45 DOI:10.1039/DT9950000045

Ruthenium(II) complexes with the atropisomeric diphosphine 2,2-bis(diphenylphosphino)-6,6-dimethylbiphenyl in the enantioselective hydrogenation of pentane-2,4-dione Antonio Mezzetti, Andreas Tschumper and Giambattista Consiglio, pp 49 DOI:10.1039/DT9950000049

Synthesis, resolution and reactions of (±)-(2-aminophenyl)methylphenylphosphine. Crystal and molecular structure of (R*,R*, S*, R*)-(±)-(1,3-bis{[2-(methylphenylphosphino)phenyl]amino}propane)nickel(II) perchlorate Caroline E. Barclay, Geoffrey Deeble, Roy J. Doyle, Sharon A. Elix, Geoffrey Salem, Timothy L. Jones, S. Bruce Wild and Anthony C. Willis, pp 57 DOI:10.1039/DT9950000057

Synthesis of -cyclopentadienyl-polyborane derivatives of molybdenum and tungsten H. Janet Bullick, Peter D. Grebenik, Malcolm L. H. Green, Andrew K. Hughes, John B. Leach and Patrick C. McGowan, pp 67 DOI:10.1039/DT9950000067

Synthesis and crystal structure of a novel cyclic trinuclear platinum(II) complex, [Pt3(L-HMet)3]·H2O (H3Met = methionine) Yolanda Y. Davidson, Shih-Chi Chang and Richard E. Norman, pp 77 DOI:10.1039/DT9950000077

Design of luminescent building blocks for supramolecular triple-helical lanthanide complexes Claude Piguet, Jean-Claude G. Bünzli, Gérald Bernardinelli, Christian G. Bochet and Pascal Froidevaux, pp 83 DOI:10.1039/DT9950000083

Crystal and molecular structure of racemic cis--[CoL(NO2)2][BF4] and cis--[CoL(NO2)2][BF2O](L = 3,6-dithiaoctane-1,8-diamine), a compound containing an anion newly isolated in crystalline form Ivan Bernal, James Cetrullo, Jiwen Cai, Russell A. Geanangel and Jay H. Worrell, pp 99 DOI:10.1039/DT9950000099

Impact of dioxygen and carboxylic acids on the transformation of rhodium(I) to rhodium(III) complexes Ewa Mieczyska, Anna M. Trzeciak, Józef J. Ziókowski and Tadeusz Lis, pp 105 DOI:10.1039/DT9950000105

X-Ray powder structure and Rietveld refinement of -zirconium phosphate, Zr(PO4)(H2PO4)·2H2O Damodara M. Poojary, Boris Shpeizer and Abraham Clearfield, pp 111 DOI:10.1039/DT9950000111

Copper-63 nuclear quadrupole resonance frequencies and molecular geometries of three-co-ordinate complexes of copper(I) halides with N-alkylimidazolidinethione and thiazolidinethione ligands Sundara Ramaprabhu, Edwin A. C. Lucken and Gérald Bernardinelli, pp 115 DOI:10.1039/DT9950000115

Synthesis and characterization of tin(IV) and organotin(IV) 1,4-dimethylpiperazine-2,5-dione (cyclosarcosylsarcosine) adducts Dimitra Kovala-Demertzi, Polymnia Tauridou, Alice Moukarika, John M. Tsangaris, Catherine P. Raptopoulou and Aris Terzis, pp 123 DOI:10.1039/DT9950000123

Potentiometric and spectroscopic study of equilibria in the aqueous ternary system copperII-L-histidine-HA (HA = aminomethane- or 2-aminobenzene-sulfonic acid) Stuart H. Laurie and Edwin S. Mohammed, pp 129 DOI:10.1039/DT9950000129

Mechanistic study of the co-ordination of hydrogen peroxide to methylrhenium trioxide Oleg Pestovsky, Rudi van Eldik, Patrick Huston and James H. Espenson, pp 133 DOI:10.1039/DT9950000133

Mercury(II) chloride adducts of flexible double betaines: influence of different polymethylene bridges between the quaternary nitrogen atoms De-Dong Wu and Thomas C. W. Mak, pp 139 DOI:10.1039/DT9950000139

Self-assembly of polyoxometalate conjugates: novel models for catalytic surfaces from crystal data Mark P. Lowe, Joyce C. Lockhart, George A. Forsyth, William Clegg and Kelly A. Fraser, pp 145 DOI:10.1039/DT9950000145

Additions and corrections Benjamin J. Coe, Jean-Dominic Foulon, Thomas A. Hamor, Christopher J. Jones, Jon A. McCleverty, David Bloor, Graham H. Cross and Tony L. Axon, pp 153 DOI:10.1039/DT9950000153

Instructions for authors (1995) J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000xiii

Refereeing procedure and policy J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000xxxv

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX003

Issue 2

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX005

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP007

Bis(-cyclopentadienyl)imidomolybdenum compounds Malcolm L. H. Green, Peter C. Konidaris, Despo M. Michaelidou and Philip Mountford, pp 155 DOI:10.1039/DT9950000155

Synthesis, structural characterisation and studies of octanuclear copper complexes of pyridonate and carboxylate ligands Alexander J. Blake, Craig M. Grant, Christopher I. Gregory, Simon Parsons, Jeremy M. Rawson, David Reed and Richard E. P. Winpenny, pp 163 DOI:10.1039/DT9950000163

Synthesis and structures of sterically crowded aryloxide-substituted aluminium chloride Stephan Schulz, Herbert W. Roesky, Mathias Noltemeyer and Hans-Georg Schmidt, pp 177 DOI:10.1039/DT9950000177

Lipophilic lanthanide complexes: a new class of carriers for extraction and transport of potassium benzyloxycarbonylamino acidates Hiroshi Tsukube, Hiroshi Shiba and Jun-ichi Uenishi, pp 181 DOI:10.1039/DT9950000181

Molecular structure of monomeric uranium tetrachloride determined by gas electron diffraction at 900 K, gasphase infrared spectroscopy and quantum-chemical density-functional calculations Arne Haaland, Kjell-Gunnar Martinsen, Ole Swang, Hans Vidar Volden, Arend S. Booij and Rudy J. M. Konings, pp 185 DOI:10.1039/DT9950000185

Discrete variational X studies of the electronic structure of amavadin Elaine M. Armstrong, David Collison, Robert J. Deeth and C. David Garner, pp 191 DOI:10.1039/DT9950000191

Ligand fields in planar platinum(II) complexes Adam J. Bridgeman and Malcolm Gerloch, pp 197 DOI:10.1039/DT9950000197

tert-Butylimido compounds of manganese-(VII), -(VI), -(V) and -(II); nitrido, amido, alkyl, zinc and aluminium compounds Andreas A. Danopoulos, Geoffrey Wilkinson, Tracy K. N. Sweet and Michael B. Hursthouse, pp 205 DOI:10.1039/DT9950000205

Mono(-cyclopentadienyl)benzamidinato alkyl compounds of titanium and zirconium Rafael Gómez, Robbert Duchateau, Alexander N. Chernega, Auke Meetsma, Frank T. Edlmann, Jan H. Teuben and Malcolm L. H. Green, pp 217 DOI:10.1039/DT9950000217

Preparation and crystal structures of cationic dienehydrido and dienyl ruthenium complexes containing N,N,N-trimethyl-1,4,7-triazacyclononane San-Ming Yang, Wing-Chi Cheng, Kung-Kai Cheung, Chi-Ming Che and Shie-Ming Peng, pp 227 DOI:10.1039/DT9950000227

Dinuclear zirconium complexes with Me2Si(C5H4)2 as bridging ligand. Molecular structure of [{Zr(5-C5H3-But2)Me}2(µ-O){µ-Me2Si(C5H4)2}] Gemma Ciruelo, Tomás Cuenca, Pilar Gómez-Sal, Avelino Martín and Pascual Royo, pp 231 DOI:10.1039/DT9950000231

Synthesis and reactions of uranium(IV) tetrathiolate complexes Pascal C. Leverd, Monique Lance, Julien Vigner, Martine Nierlich and Michel Ephritikhine, pp 237 DOI:10.1039/DT9950000237

The structure of solutions of gallium(I) chloride in benzene Stefan Ulvenlund, Andrew Wheatley and Lars A. Bengtsson, pp 245 DOI:10.1039/DT9950000245

Spectroscopic investigation of concentrated solutions of gallium(III) chloride in mesitylene and benzene Stefan Ulvenlund, Andrew Wheatley and Lars A. Bengtsson, pp 255 DOI:10.1039/DT9950000255

Azonaphtholate ligands for the nickel(III) cation: design, synthesis and electrochemical properties Sami Mukhopadhyay and Debashis Ray, pp 265 DOI:10.1039/DT9950000265

New -diketones with oligoether side-chains and their complexes with barium and copper. Crystal and molecular structure of bis(1-phenyl-7,10-dioxaundecane-1,3-dionato)copper(II) at 150 K Jason A. P. Nash, Simon C. Thompson, Douglas F. Foster, David J. Cole-Hamilton and John C. Barnes, pp 269 DOI:10.1039/DT9950000269

Dinuclear zinc(II) complexes of a Robson macrocycle Harry Adams, Neil A. Bailey, Philippe Bertrand, Cecilia O. Rodriguez de Barbarin, David E. Fenton and Shaohua Gou, pp 275 DOI:10.1039/DT9950000275

Preparation, crystal structure and single-crystal polarized spectra of bis(1,2,6,7-tetracyano-3,5-dihydro-3,5-diiminopyrrolizinido)zinc(II)-tetrahydrofuran (1/4) Vincenzo Fares, Alberto Flamini, Jill R. Jasin, Ronald L. Musselman and Nicola Poli, pp 281 DOI:10.1039/DT9950000281

Crystal structures of salts of transition-metal halide clusters Dario Braga, Fabrizia Grepioni and Emilio Parisini, pp 287 DOI:10.1039/DT9950000287

Kinetic evidence for the redox cycling of manganese(II,III) in the presence of -ON(NO)SO3- in aqueous media Frans F. Prinsloo, Jakobus J. Pienaar and Rudi van Eldik, pp 293 DOI:10.1039/DT9950000293

Iron(0) arene and iron(II) hydride complexes from the hydrogenation or thermolysis of high-spin iron(II) alkyls Ann R. Hermes, Timothy H. Warren and Gregory S. Girolami, pp 301 DOI:10.1039/DT9950000301

Preparation of [Ru(6-C6Me6)Cl(CCPh)(RNC)](R = C8H9 or C6H2Me3-2,4,6) and its reaction with tetracyanoethylene. Crystal structures of [Ru(6-C6Me6)Cl{C[C(CN)2]CPhC(CN)2}(C8H9NC)] and cis-[RuCl2(C8H9NC)2] Yasuhiro Yamamoto, Ryoichi Satoh and Tomoaki Tanase, pp 307 DOI:10.1039/DT9950000307

Synthesis and characterization of mono(carbene) complexes of copper and crystal structure of a linear thiazolinylidene compound Helgard G. Raubenheimer, Stephanie Cronje and Pierre J. Olivier, pp 313 DOI:10.1039/DT9950000313

Dalton communications. Organometallic liquid crystals based on octahedral rhodium(III) Jonathan P. Rourke, Duncan W. Bruce and Todd B. Marder, pp 317 DOI:10.1039/DT9950000317

Synthesis of [Au(NH3)2]+ salts and the crystal structure of [Au(NH3)2]Br D. Michael P. Mingos, John Yau, Stephan Menzer and David J. Williams, pp 319 DOI:10.1039/DT9950000319

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viia

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX007

Issue 3

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX009

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP013

Non-planar co-ordination of the Schiff-base dianion N,N-2,2-dimethyltrimethylenebis[salicylideneiminate(2-)] to vanadium Shirley A. Fairhurst, David L. Hughes, Uwe Kleinkes, G. Jeffery Leigh, J. Roger Sanders and Jan Weisner, pp 321 DOI:10.1039/DT9950000321

Complexes of Ga3+ and In3+ with the N,N-bis(butylamide) derivative of diethylenetriaminepentaacetic acid: stability constants and nuclear magnetic resonance studies in aqueous solution Carlos F. G. C. Geraldes, Rita Delgado, Ana M. Urbano, Judite Costa, François Jasanada and François Nepveu, pp 327 DOI:10.1039/DT9950000327

Variable geometry of nickel(II) complexes with N1-isopropyl-2-methyl-1,2-propanediamine(L). Crystal structures of [NiL2]Br2·3H2O, [NiL2Br]Br and [NiL2(NCS)2] and solid-state thermochromism in [NiL2]Br2·3H2O Chandi Pariya, Soma Ghosh, Ashutosh Ghosh, Monika Mukherjee, Alok K. Mukherjee and Nirmalendu Ray Chaudhuri, pp 337 DOI:10.1039/DT9950000337

A mixed-bridged Cu3 cluster with an isosceles-triangular array of copper(II) ions: synthesis, crystal structure and magnetic properties Enrique Colacio, Jose M. Dominguez-Vera, Albert Escuer, Martti Klinga, Raikko Kivekäs and Antonio Romerosa, pp 343 DOI:10.1039/DT9950000343

Determination by electron diffraction of the molecular structures of chloro- and bromo-tri(trimethylsilyl)methane in the gas phase Paul T. Brain, Mathias Mehta, David W. H. Rankin, Heather E. Robertson, Colin Eaborn, J. David Smith and Alexander D. Webb, pp 349 DOI:10.1039/DT9950000349

Niobium complexes with terdentate diphosphino- and diamino-amido ligands. Crystal sturcture of [{NbCl3[N(CH2CH2PMe2)2]}2]·C 6H5Me Abdul-R. H. Al-Soudani, Peter G. Edwards, Michael B. Hursthouse and K. M. Abdul Malik, pp 355 DOI:10.1039/DT9950000355

Synthesis and characterization of a di-N-hydroxyethylated tetraaza macrocycle and its nickel(II) and copper(II) complexes: crystal structure of the nickel(II) complex Shin-Geol Kang, Mi-Seon Kim, Jang-Sik Choi, Dongmok Whang and Kimoon Kim, pp 363 DOI:10.1039/DT9950000363

Structure and mechanism in aerobic alkene epoxidations promoted by ruthenium complexes of bis(dihydrooxazole) ligands Simon Bennett, Stephen M. Brown, Gráinne Conole, Margalith Kessler, Simon Rowling, Ekkehard Sinn and Simon Woodward, pp 367 DOI:10.1039/DT9950000367

Preparation and crystal structures of diphenylantimony(III) thiocyanate and bis(2,6-dimethylphenyl)antimony(III) thiocyanate Glynis E. Forster, Michael J. Begley and D. Bryan Sowerby, pp 377 DOI:10.1039/DT9950000377

Some Group 15 pseudo-halides and the crystal structure of diphenylbismuth(III) thiocyanate Glynis E. Forster, Michael J. Begley and D. Bryan Sowerby, pp 383 DOI:10.1039/DT9950000383

Sono-electrochemistry: the oxidation of bis(cyclopentadienyl)molybdenum dichloride Richard G. Compton, John C. Eklund, Stephen D. Page and Thomas O. Rebbitt, pp 389 DOI:10.1039/DT9950000389

Syntheses and reactions of ansa-[2,2-bis(-cyclopentadienyl)propane]-tungsten and -molybdenum compounds Luca Labella, Alexander Chernega and Malcolm L. H. Green, pp 395 DOI:10.1039/DT9950000395

Quantitative and structural investigations of hydrogen bonding interactions in anion binding of mono- and 1,1-bis-substituted aryl cobaltocenium receptors Paul D. Beer, Michael G. B. Drew, Andrew R. Graydon, David K. Smith and Sally E. Stokes, pp 403 DOI:10.1039/DT9950000403

Hydridorhodium diphosphite catalysts in the asymmetric hydroformylation of styrene Godfried J. H. Buisman, Eric J. Vos, Paul C. J. Kamer and Piet W. N. M. van Leeuwen, pp 409 DOI:10.1039/DT9950000409

Synthesis and structural characterization of the tetraruthenium cluster complexes [Ru4(µ-H)4(CO)10(L-L)](L-L = diphosphine) Dario Braga, Ugo Matteoli, Piera Sabatino and Alberto Scrivanti, pp 419 DOI:10.1039/DT9950000419

Oxovanadium(IV) complexation by adenosine 5-di-and -tri-phosphate and nucleotide building blocks Elisabetta Alberico, Dorothee Dewaele, Tamas Kiss and Giovanni Micera, pp 425 DOI:10.1039/DT9950000425

Eight-vertex polyhedral monocarbaborane chemistry. Three closo anions, [CB7H8]-, [CB7H7I]- and [CB7H6I2]-. Preparation and structural studies Tomá Jelínek, Bohumil tíbr, Jaromir Pleek, John D. Kennedy and Mark Thornton-Pett, pp 431 DOI:10.1039/DT9950000431

Synthesis, structure and properties of cobalt(III) complexes of pentadentate ligands with pyridyl pendant arms Grant A. McLachlan, Suzanne J. Brudenell, Gary D. Fallon, Raymond L. Martin, Leone Spiccia and Edward R. T. Tiekink, pp 439 DOI:10.1039/DT9950000439

Kinetics of ternary complex formation between cobalt(II) species and 2,2-bipyridine: parametrization of bound-ligand effects David N. Hague and Andrew R. White, pp 449 DOI:10.1039/DT9950000449

Facial co-ordination in bis[bis(benzimidazol-2-ylmethyl)-amine]copper(II) perchlorate dihydrate. Synthesis, structure, spectra and redox behaviour Mallayan Palaniandavar, Thangarasu Pandiyan, M. Lakshminarayanan and Hattikudur Manohar, pp 455 DOI:10.1039/DT9950000455

Substitution reactions of trans-[Ru(NH3)4{P(OEt)3}(H2O)]2+ revisited. Mechanistic elucidation from a volume-profile analysis Benedito S. Lima Neto, Douglas W. Franco and Rudi van Eldik, pp 463 DOI:10.1039/DT9950000463

Dynamics of tin nuclei in alkyltin(IV)-deoxyribonucleic acid condensates by variable-temperature tin-119 Mössbauer spectroscopy Renato Barbieri, Giuseppe Ruisi, Arturo Silvestri, Anna Maria Giuliani, Adriana Barbieri, Gabriele Spina, Fabrizio Pieralli and Franco Del Giallo, pp 467 DOI:10.1039/DT9950000467

Role of the NH3+ moiety in iron(III)-, aluminium(III)- and gallium(III)-aminohydroxamate interactions Etelka Farkas, Emese Kozma, Tamás Kiss, Imre Tóth and Barbara Kurzak, pp 477 DOI:10.1039/DT9950000477

Chromium(III)-catalysed oxidation of antimony(III) by alkaline hexacyanoferrate(III) and analysis of chromium(III) in microamounts by a kinetic method Sharanappa T. Nandibewoor and Vidyavati A. Morab, pp 483 DOI:10.1039/DT9950000483

Spectroscopic and potentiometric studies on the interaction of trans-[(MeH2N)2Pt(mcyt)2PdCl]NO3(mcyt = 1-methylcytosinate) with derivatives of amino acids Imre Sóvágó, Attila Kiss and Bernhard Lippert, pp 489 DOI:10.1039/DT9950000489

Dalton communications. A zwitterionic cluster compound: synthesis and characterisation of the triphenylphosphoniocyclo-pentadienide derivative [Ru6C(CO)14(5-C5H4PPh3)] Alexander J. Blake, Brian F. G. Johnson, Simon Parsons and Douglas S. Shephard, pp 495 DOI:10.1039/DT9950000495

Alkynyl gold(I) complexes. The first family of ethynyl gold (I) complexes José Vicente, María-Teresa Chicote and María-Dolores Abrisqueta, pp 497 DOI:10.1039/DT9950000497

Synthesis, photophysical and electrochemincal properties of luminescent dinuclear copper(I) diimines Vivian Wing-Wah Yam and Kenneth Kam-Wing Lo, pp 499 DOI:10.1039/DT9950000499

Synthesis of two new antimony sulfide clusters: structures of [PPh4]2[Sb6S6] and [PPh4]2[Sb4S6] Thomas M. Martin, George L. Schimek, William T. Pennington and Joseph W. Kolis, pp 501 DOI:10.1039/DT9950000501

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viib

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX011

Issue 4

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX013

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP019

Dalton perspectives. Inorganic reaction mechanisms: the bioinorganic-organometallic interface Richard A. Henderson, pp 503 DOI:10.1039/DT9950000503

Iron-57 Mössbauer spectroscopic and X-ray diffraction studies on the mixed-valence state of binuclear ferrocene derivatives with long alkyl substituents Satoru Nakashima, Yutaka Ueki and Hiroshi Sakai, pp 513 DOI:10.1039/DT9950000513

Platinum(II) co-ordination chemistry of bis(diphenylphosphino)amine C. Scott Browning and David H. Farrar, pp 521 DOI:10.1039/DT9950000521

Synthesis, crystal structure, electrochemistry and electronic paramagnetic resonance spectroscopy of [M{(PPh2CH2)3CMe}(o-S2C6H4)][PF6]n(M = Fe, Co or Rh; n= 0 or 1) Carlo A. Ghilardi, Franco Laschi, Stefano Midollini, Annabella Orlandini, Giancarlo Scapacci and Piero Zanello, pp 531 DOI:10.1039/DT9950000531

Aqueous electrochemistry of mono- and bi-nuclear copper(II) complexes with polyaza[n]paracyclophane ligands Antonio Doménech, José-Vicente Folgado, Enrique García-España, Santiago V. Luis, José-M. Llinares, Juan F. Miravet and José A. Ramírez, pp 541 DOI:10.1039/DT9950000541

Heterometallic boride clusters: formation of octahedral [M2Ru4(CO)16B]-(M = Rh or Ir) and gold(I) phosphine derivatives. Crystal structures of [N(PPh3)2][trans-Ir2Ru4(CO)16B], trans-[Rh2Ru4(CO)16B{µ3-AuP(C6H11)3}] and cis-[Ir2Ru4(CO)16B{µ-AuP(C6H11)3}] Jane R. Galsworthy, Andrew D. Hattersley, Catherine E. Housecroft, Arnold L. Rheingold and Anne Waller, pp 549 DOI:10.1039/DT9950000549

Primary amines as nucleation centres for gold clustering, and the structural chemistry of polygold ammonium cations Klaus Angermaier and Hubert Schmidbaur, pp 559 DOI:10.1039/DT9950000559

Phosphorus hydrazides as building blocks for potential photoaffinity labels. Synthesis and co-ordination chemistry of perfluoroaryl azide conjugates of phenylphosphonothioic dihydrazide Raghoottama S. Pandurangi, Robert R. Kuntz, Wynn A. Volkert, Charles L. Barnes and Kattesh V. Katti, pp 565 DOI:10.1039/DT9950000565

CsFe3(PO4)3(OH2)2: a mixed-valence iron phosphate containing trimeric units of iron-oxygen polyhedra Kwang-Hwa Lii and Chih-Yuan Huang, pp 571 DOI:10.1039/DT9950000571

Conformational preferences and protonation sequence of myo-inositol hexaphosphate in aqueous solution; potentiometric and multinuclear magnetic resonance studies Cédric Brigando, Jean C. Mossoyan, Frédéric Favier and David Benlian, pp 575 DOI:10.1039/DT9950000575

Cisplatin analogues with sulfur donor ligands. (Ethylenediamine)platinum(II) complexes with ligands possessing a sulfinyl or sulfanyl group linked to an anionic oxygen donor atom. Reactivity and cytotoxicity Alessandro Pasini, Paola Perego, Massimo Balconi and Mauro Lupatini, pp 579 DOI:10.1039/DT9950000579

Preparation, properties and crystal structures of new nickel(II) complexes of 1,2-asymmetrically substituted dithiolenes for third-order non-linear optical applications Callum A. S. Hill, Adam Charlton, Allan E. Underhill, K. M. Abduls Malik, Michael B. Hursthouse, A. I. Karaulov, Steven N. Oliver and Steven V. Kershaw, pp 587 DOI:10.1039/DT9950000587

Extended X-ray absorption fine structure, crystal structures at 295 and 173 K, and electron paramagnetic resonance and electronic spectra of bis[tris(2-pyridyl)-methane]copper(II) dinitrate Timothy Astley, Paul J. Ellis, Hans C. Freeman, Michael A. Hitchman, F. Richard Keene and Edward R. T. Tiekink, pp 595 DOI:10.1039/DT9950000595

Exploring the auxiliary co-ordination sphere of tripodal amino(triamido) actinide complexes Peter Scott and Peter B. Hitchcock, pp 603 DOI:10.1039/DT9950000603

Crystallization behaviour of meso-()-[Co{trans-(R,S)(meen)2}(C2O4)][Pb2Cl5]·2H2O, ()-[{[Co{trans-(R,R)(meen)2}(C2O4)]Br}2]·3H2O and meso-()-[Co{cis-(R,S)(meen)2}(C2O4)]I (meen =N-methylethylenediamine) Jiwen Cai, Jozef Myrczek and Ivan Bernal, pp 611 DOI:10.1039/DT9950000611

Solution equilibria and redox reactivities of a dioxo-bridged manganese complex Swapan Chaudhuri, Subrata Mukhopadhyay and Rupendranath Banerjee, pp 621 DOI:10.1039/DT9950000621

Terdentate (P,N,N) complexes of a new pyridyl azine phosphine Z,E-PPh2CH2(But)CN-NC(Me)C5H4N and its deprotonated derivative (an azo phosphine) with transition metals King Kuok Hii, Sarath D. Perera and Bernard L. Shaw, pp 625 DOI:10.1039/DT9950000625

Complexes of the bidentate ligands Z-PPh2CH2C(But)NNR2(R = Me or H) with rhodium and iridium Sarath D. Perera and Bernard L. Shaw, pp 633 DOI:10.1039/DT9950000633

Cyclometallation of azine phosphines of type Z,E-PPh2CH2C(But)N-NCHR (R = an aromatic or heterocyclic group) involving X-Y (X = C, N or O; Y = H, I or Br) bond fission by platinum(II) Sarath D. Perera and Bernard L. Shaw, pp 641 DOI:10.1039/DT9950000641

Optically active asymmetric bidentate ligands. Crystal and molecular structure of [SP-4-4-(R),(R)]-(-)589-{1-[1-(dimethylamino)ethyl]naphthyl-C2,N}[1-(diphenylphosphino)-2-(methylphenylphosphino)ethane-P,P]-palladium(II) hexafluorophosphate Jeffrey Leitch, Geoffrey Salem and David C. R. Hockless, pp 649 DOI:10.1039/DT9950000649

Luminescent nitridometal complexes. Photophysical and photochemical properties of the 3[(dxy)1(d*)1] excited state of nitridoosmium(VI) complexes with polypyridine ligands Kwok-Fai Chin, Kung-Kai Cheung, Hon-Kay Yip, Thomas C. W. Mak and Chi Ming Che, pp 657 DOI:10.1039/DT9950000657

Neutron diffraction study on a single crystal of pentacarbonyldiethylcyanamidechromium at 110 K Marie-Noëlle Ohnet, Anne Spasojevi-de Biré, Nguyen Quy Dao, Peter Schweiss, Markus Braden, Helmut Fischer and David Reindl, pp 665 DOI:10.1039/DT9950000665

Non-linear and potential non-linear optical materials containing molybdenum or tungsten mononitrosyl redox centres. Stilbene derivatives containing ferrocenyl, methoxy or dimethylamino donor groups Benjamin J. Coe, Thomas A. Hamor, Christopher J. Jones, Jon A. McCleverty, David Bloor, Graham H. Cross and Tony L. Axon, pp 673 DOI:10.1039/DT9950000673

Complex-formation reactions of aquacobalamin revisited: effect of chloride on the rate and activation parameters Frans F. Prinsloo, Ernst L. J. Breet and Rudi van Eldik, pp 685 DOI:10.1039/DT9950000685

Low-temperature structures and Raman spectra of crystalline modifications of selenium difluoride dioxide Alexander J. Blake, Danila Bevilacqua, Milo erník and Zdirad ák, pp 689 DOI:10.1039/DT9950000689

Dalton communications. Lewis-acid catalysed oxidation of alkanes by chromate and permanganate Tai-Chu Lau, Zhi-Biao Wu, Zi-Long Bai and Chi-Keung Mak, pp 695 DOI:10.1039/DT9950000695

Dinuclear five-co-ordinate zinc complexes bridged by a phosphate monoester or an inorganic phosphate group Harry Adams, Neil A. Bailey, David E. Fenton and Qing-Yu He, pp 697 DOI:10.1039/DT9950000697

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viic

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX015

Issue 5

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX017

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP025

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9950000ixa

Synthesis and reactivity towards dioxygen of some manganese(II) complexes of tertiary amines. Crystal structures of [{MnI2(NEt3)}2], [{MnI2(NPr3n)}2] and [NHMe3][MnI3(NMe3)] Helen P. Lane, Stephen M. Godfrey, Robin G. Pritchard and Charles A. McAuliffe, pp 701 DOI:10.1039/DT9950000701

Properties and reactivity of unusual diiron complexes of a linear tetradentate ligand. Crystal structures of diiron-(II) and -(III) complexes Rita Hazell, Kenneth B. Jensen, Christine J. McKenzie and Hans Toftlund, pp 707 DOI:10.1039/DT9950000707

Synthesis and characterisation of enynyl, vinyl and acetylide complexes of osmium(II) Gabriele Albertin, Stefano Antoniutti and Emilio Bordignon, pp 719 DOI:10.1039/DT9950000719

Conversion of hydrogen-bonded manganese(II) and zinc(II) squarate (C4O42-) molecules, chains and sheets to three-dimensional cage networks Omar M. Yaghi, Guangming Li and Thomas L. Groy, pp 727 DOI:10.1039/DT9950000727

Thermodynamic and spectroscopic investigations on the interaction of uranyl(VI) with neutral N- and O-donors in dimethyl sulfoxide Alberto Cassol, Plinio Di Bernardo, Roberto Portanova, Marilena Tolazzi and Pier Luigi Zanonato, pp 733 DOI:10.1039/DT9950000733

Chemistry of the carbido- and nitrido-decaruthenium cluster anions [Ru10H(C)(CO)24]-, [Ru10C(CO)24]2- and [Ru10N(CO)24]- Philip J. Bailey, Grainne Conole, Brian F. G. Johnson, Jack Lewis, Mary McPartlin, Adrian Moule, Harold R. Powell and Della A. Wilkinson, pp 741 DOI:10.1039/DT9950000741

Synthesis, crystal structure, photophysical properties and theoretical studies of [Cu3(Ph2PCH2PPh2)3(WS4)]ClO4 Chi-Keung Chan, Chun-Xiao Guo, Ru-Ji Wang, Thomas C. W. Mak and Chi-Ming Che, pp 753 DOI:10.1039/DT9950000753

Bismuth(III) chloride complexation with diphosphine and diarsine oxide ligands: formation and crystal structures of [BiCl3{Ph2P(O)CH2P(O)Ph2}]2 and [BiCl3{As(O)MePh2}{Ph2As(O)Ch2CH2As(O)Ph2}]n Gerald R. Willey, Martin D. Rudd, Christopher J. Samuel and Michael G. B. Drew, pp 759 DOI:10.1039/DT9950000759

Attempted functionalisation of a mononuclear barium complex of a 24-membered bibracchial tetraimine Schiff-base macrocycle derived from tris(2-aminoethyl)amine using salicylaldehyde Neil A. Bailey, Cecilia O. Rodriguez de Barbarin, David E. Fenton, Paul C. Hellier, Paul D. Hempstead, Masatoshi Kanesato and Philip B. Leeson, pp 765 DOI:10.1039/DT9950000765

Binuclear and polymeric manganese(II) salicylate complexes: synthesis, crystal structure and catalytic activity of [Mn2(Hsal)4(H2O)4] and [{Mn2(sal)2(Hsal)(H2O)-(H3O)(py)4·2py}n](H2sal = salicylic acid, py = pyridine) Michael Devereux, Malachy McCann, Michael T. Casey, Martin Curran, George Ferguson, Christine Cardin, Moira Convery and Valerie Quillet, pp 771 DOI:10.1039/DT9950000771

Cyclometallated derivatives of platinum(II) derived from 6-(tert-butyl)-2,2-bipyridine (HL). Crystal and molecular structure of [Pt(L)CI] Giovanni Minghetti, Maria Agostina Cinellu, Sergio Stoccoro, Antonio Zucca and Mario Manassero, pp 777 DOI:10.1039/DT9950000777

Metal complexes of carbohydrates: isolation and characterisation of cobalt(III) complexes containing N-substituted glycosylamine ligands derived from ethane-1,2-diamine and glucosamine Jack M. Harrowfield, Mauro Mocerino, Brian W. Skelton, Wenyan Wei and Allan H. White, pp 783 DOI:10.1039/DT9950000783

Complexation of aluminium(III), gallium(III) and indium(III) ions with D-gluconic and lactobionic acids. A potentiometric and nuclear magnetic resonance spectroscopic study Graciela M. Escandar, Alejandro C. Olivieri, Manuel González-Sierra, Alejandro A. Frutos and Luis F. Sala, pp 799 DOI:10.1039/DT9950000799

Synthesis and structural characterization of methanide silver(I) complexes. Unprecedented co-ordination of the methanide ligand in [Ag2(PPh3)2(SPPh2CHPPh2CHCO2Me)]ClO4·4CH2Cl2 Maria Concepción Gimeno, Peter G. Jones, Antonio Laguna and Maria Dolores Villacampa, pp 805 DOI:10.1039/DT9950000805

Crown ether complexation of scandium(III). Formation and spectroscopic characterisation of ScCl2+-oxacrown species and crystal structures of two scandium dibenzocrowns Gerald R. Willey, Paul R. Meehan, Martin D. Rudd and Michael G. B. Drew, pp 811 DOI:10.1039/DT9950000811

Synthesis of the potentially pentadentate ligand 6,6-bis(2-hydroxyphenyl)-2,2 :6,2- terpyridine (H2L) and the crystal structure and magnetic properties of [{Cu(HL)}2][PF6]2·5MeCN John C. Jeffery, John P. Maher, Carl A. Otter, Peter Thornton and Michael D. Ward, pp 819 DOI:10.1039/DT9950000819

Conventional and cyclometallated complexes of ruthenium(II) with ambidentate terdentate ligands displaying N3 or N2C binding modes David A. Bardwell, John C. Jeffery, Erik Schatz, Elizabeth E. M. Tilley and Michael D. Ward, pp 825 DOI:10.1039/DT9950000825

Partially encapsulated copper(I) complexes of mono(o-aryl)-substituted derivatives of 2,2-bipyridine and 1,10-phenanthroline David A. Bardwell, Alexander M. W. Cargill Thompson, John C. Jeffery, Elizabeth E. M. Tilley and Michael D. Ward, pp 835 DOI:10.1039/DT9950000835

Synthesis and characterisation of precursors to organometal cluster networks Alexander J. Blake, Brian F. G. Johnson, David Reed and Douglas S. Shephard, pp 843 DOI:10.1039/DT9950000843

Synthesis, crystal structures and reactivity of ruthenium-(II) and -(III) complexes containing -ketophosphine or phosphino enolate ligands Pierre Braunstein, Yves Chauvin, Jens Nähring, Yves Dusausoy, Daniel Bayeul, Antonio Tiripicchio and Franco Ugozzoli, pp 851 DOI:10.1039/DT9950000851

Synthesis, crystal structures and reactivity of rhodium(III) complexes containing -ketophosphine and phosphino enolate ligands Pierre Braunstein, Yves Chauvin, Jens Nähring, André DeCian and Jean Fischer, pp 863 DOI:10.1039/DT9950000863

Formation and decomposition of high-mass metal-oxygen cluster ions in the fast atom bombardment of lanthanide salts Terence J. Kemp and Paul A. Read, pp 875 DOI:10.1039/DT9950000875

Formation and decomposition of uranium-oxygen clusters in fast atom bombardment of dioxouranium(VI) salts Terence J. Kemp, Keith R. Jennings and Paul A. Read, pp 885 DOI:10.1039/DT9950000885

Dalton communications. Effect of amine substituents and neutral leaving groups on the activation volume for aquation of octahedral pentaamine complexes of CrIII and RhIII Gabriel González, Manuel Martinez and Elisa Rodríguez, pp 891 DOI:10.1039/DT9950000891

Heteropolynuclear complexes containing multiple redox and chromophoric moieties: -alkynyl-bipyridine or -terpyridine derivatives of platinum(II) Muriel Hissler and Raymond Ziessel, pp 893 DOI:10.1039/DT9950000893

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX019

Issue 6

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX021

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP033

Synthesis, crystal structure and properties of novel ferrocenyl multisulfur compounds Stephen B. Wilkes, Ian R. Butler, Allan E. Underhill, Michael B. Hursthouse, David E. Hibbs and K. M. Abdul Malik, pp 897 DOI:10.1039/DT9950000897

Kinetics and mechanism of the addition of azide ion to a carbonyl ligand of [Ru3(CO)12]: cluster activation Leon A. P. Kane-Maguire, Monika Manthey and Brett Robinson, pp 905 DOI:10.1039/DT9950000905

Preparation, characterisation, molecular and crystal structure of the octaruthenium arene clusters [Ru8H4(CO)18(6-arene)](arene = C6H6 or C16H16) Dario Braga, Fabrizia Grepioni, Paul J. Dyson, Brian F. G. Johnson and Caroline M. Martin, pp 909 DOI:10.1039/DT9950000909

Dinuclear pentafluorophenyl compounds of rhodium(III) with anionic bridging ligands. Molecular structures of [P(CH2Ph)Ph3]2[{Rh(C6F5)3}2(µ-SCN)2] and [P(CH2Ph)Ph3]2[{Rh(C6F5)3}2(µ-CO3)] María P. García, M. Victoria Jiménez, Fernando J. Lahoz and Luis A. Oro, pp 917 DOI:10.1039/DT9950000917

Cs3Ti5P7O29: a titanium(IV) phosphate containing TiO5 trigonal bipyramids Kwang-Hwa Lii, pp 927 DOI:10.1039/DT9950000927

Unusual migration of manganese to an arene via protonation of an agostic 3:CH-cyclohexenyl complex Todd R. Tritcak, John B. Sheridan, Marie L. Coté, Roger A. Lalancette and John P. Rose, pp 931 DOI:10.1039/DT9950000931

Anionic and cationic Bi- and tri-nuclear tert-butylimido complexes of manganese-(V) and -(VI) Andreas A. Danopoulos, Geoffrey Wilkinson, Tracy K. N. Sweet and Michael B. Hursthouse, pp 937 DOI:10.1039/DT9950000937

3-Amino-6,6-bis(methoxycarbonyl)-2,2-bipyridine, a model for the central chelation unit of streptonigrin Georgina V. Long, Margaret M. Harding, Ming C. L. Xie, Irmi E. Buys and Trevor W. Hambley, pp 951 DOI:10.1039/DT9950000951

Bis(µ-2-cyanoguanidine)-bis[(2-cyanoguanidine)copper(I)], a planar dimeric cation containing co-ordinatively unsaturated copper(I) Michael J. Begley, Peter Hubberstey and Paul H. Walton, pp 957 DOI:10.1039/DT9950000957

Crystal and molecular structure, magnetic properties and scattered-wave description of the electronic structure of the hexanuclear octahedral clusters [Fe6(µ3-S)8(PEt3)6][PF6]n(n= 1 or 2) Alessandro Bencini, Carlo A. Ghilardi, Stefano Midollini, Annabella Orlandini, Umberto Russo, Myriam G. Uytterhoeven and Claudia Zanchini, pp 963 DOI:10.1039/DT9950000963

Determination by electron diffraction of the molecular structure of bromotris(methoxydimethylsilyl)methane in the gas phase Paul T. Brain, Mathias Mehta, David W. H. Rankin, Heather E. Robertson, Colin Eaborn, J. David Smith and Alexander D. Webb, pp 975 DOI:10.1039/DT9950000975

Direct oxidation of benzene by electron transfer in a multi-functionalized chelate resin system Toshiharu Teranishi and Naoki Toshima, pp 979 DOI:10.1039/DT9950000979

Synthesis and solid-state structural characterization of N,N-dicyclohexyldithiooxamide complexes of HgX2(X = SCN or Cl) Ricardo Baggio, Maria Teresa Garland and Mireille Perec, pp 987 DOI:10.1039/DT9950000987

Steady-state fluorescence emission studies on polyazacyclophane macrocyclic receptors and on their adducts with hexacyanocobaltate(III) M. Alexandra Bernardo, A. Jorge Parola, Fernando Pina, Enrique Garcia-España, Victor Marcelino, Santiago V. Luis and Juan F. Miravet, pp 993 DOI:10.1039/DT9950000993

Kinetics and mechanism of halogen-bridge cleavage in dimethylaminomethylphenyl-C1,N pallada- and platina-cycles by pyridines. pressure effects, and crystal structures of the N,N-cis reaction product, its N,N-trans orthometallated analogue and a dimer of similar reactivity Alexander D. Ryabov, Lyudmila G. Kuz'mina, Vladimir A. Polyakov, Gregory M. Kazankov, Ekaterina S. Ryabova, Michel Pfeffer and Rudi van Eldik, pp 999 DOI:10.1039/DT9950000999

Synthesis and structural characterisation of new isocyanate and imido niobocene complexes. Crystal structures of [{Nb(-C5H4SiMe3)2Cl}2] and [Nb(-C5H4SiMe3)2(=NPh)Cl] Antonio Antiñolo, Pedro Espinosa, Mariano Fajardo, Pilar Gómez-Sal, Carmen López-Mardomingo, Avelino Martin-Alonso and Antonio Otero, pp 1007 DOI:10.1039/DT9950001007

Synthesis, spectroscopic characterization and dynamic behaviour of niobium complexes with poly(pyrazol-1-yl)methane ligands Juan Fernández-Baeza, Félix A. Jalón, Antonio Otero and M. Esther Rodrigo-Blanco, pp 1015 DOI:10.1039/DT9950001015

Electronic structure of 20-electron bis-(cyclopentadienyl)-metal oxo compounds of Group 6: investigation by photoelectron spectroscopy Adam J. Bridgeman, Linda Davis, Steven J. Dixon, Jennifer C. Green and Ian N. Wright, pp 1023 DOI:10.1039/DT9950001023

Kinetic versus thermodynamic control in the selective functionalization of nickel(II) cyclidene macrocyclic complexes James H. Cameron and Elinor L. Scott, pp 1029 DOI:10.1039/DT9950001029

The reaction of cobalt(III)-ketoenolates with trifluoroacetic acid Mirko Bruni, Pietro Diversi, Giovanni Ingrosso, Antonio Lucherini, Calogero Pinzino and Andrea Raffaelli, pp 1035 DOI:10.1039/DT9950001035

Synthesis and characterization of some mixed alkyl-carbamates of zinc or cadmium: crystal structures of [Zn4Me2(O2CNEt2)6] and [Zn4Me4(O2CNEt2)4] Isaac Abrahams, M. Azad Malik, Majid Motevalli and Paul O'Brien, pp 1043 DOI:10.1039/DT9950001043

Synthesis, structural characterization and thermal reactivities of osmium carbonyl clusters containing 4,6-dimethylpyrimidine-2-thione Yat-Kun Au, Kung-Kai Cheung and Wing-Tak Wong, pp 1047 DOI:10.1039/DT9950001047

Dalton communications. A new type of sulfenamido ligand. Crystal structure of W(NBut)2(2-PhSNBut)2 Danielle M. Hankin, Andreas A. Danopoulos, Geoffrey Wilkinson, Tracy K. N. Sweet and Michael B. Hursthouse, pp 1059 DOI:10.1039/DT9950001059

Electrophilic reactivity of arene carbonyl cluster complexes with the Ru6C core. Crystal and molecular structure of [Ru6C(CO)14(6-C6H4Ph2-1,4)] Till Borchert, Jack Lewis, Hans Pritzkow, Paul R. Raithby and Hubert Wadepohl, pp 1061 DOI:10.1039/DT9950001061

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viid

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX023

Issue 7

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX025

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP039

Tetraruthenium cluster isomers containing both C6H8 and [2.2]paracyclophane ligands: a new face-bridging co-ordination mode for a C6 aromatic ring Alexander J. Blake, Paul J. Dyson, Scott L. Ingham, Brian F. G. Johnson and Caroline M. Martin, pp 1063 DOI:10.1039/DT9950001063

New mixed-ligand isocyanide diphosphine ruthenium(II) derivatives. Synthesis of a potential metal-containing tetradentate ligand Javier Ruiz, Víctor Riera and Marilin Vivanco, pp 1069 DOI:10.1039/DT9950001069

Ruthenium and osmium acyl fluoride complexes. Crystal structure of [OC-6-13][RuF2(CO)2(PPh3)2]·CD2Cl2 Stuart A. Brewer, Karl S. Coleman, John Fawcett, John H. Holloway, Eric G. Hope, David R. Russell and Paul G. Watson, pp 1073 DOI:10.1039/DT9950001073

Kinetics and mechanism of ligand exchange in tetrakis(acetylacetonato)zirconium(IV) in organic solvents Woo-Sik Jung, Haruro Ishizaki and Hiroshi Tomiyasu, pp 1077 DOI:10.1039/DT9950001077

Kinetic studies on the reduction of nickel(IV) and nickel(III) oxime-imine complexes by ascorbic acid Basudeb Saha, Sumana Gangopadhyay, Mahammad Ali and Pradyot Banerjee, pp 1083 DOI:10.1039/DT9950001083

Dynamics and molecular aggregation in crystalline [{M(C5H5)}3(µ3-2 : 2 : 2-C6H5R)][M = Co, R = CH(Ph)Me, CH2CH2Ph or CHCHMe; M = Rh, R = H] clusters Dario Braga, Fabrizia Grepioni, Emilio Parisini, Hubert Wadepohl and Stefan Gebert, pp 1089 DOI:10.1039/DT9950001089

Reactivity of cobalt(II) complexes [CO(OEPh3)2X2](E = P or as; X = Cl, Br, I or NCS) with SO2 under aerobic and anaerobic conditions. Crystal structure of cocrystallised [Co(OPMe3)3(OH2)2]I2 and [Co(OPMe3)3(OH2)3]I2 Stephen M. Godfrey, David G. Kelly, Charles A. McAuliffe and Robin G. Pritchard, pp 1095 DOI:10.1039/DT9950001095

Cobalt and nickel complexes of 2,2 : 6,2 : 6,2-quaterpyridine as catalysts for electrochemical reduction of carbon dioxide Kin-Ming Lam, Kwok-Yin Wong, San-Ming Yang and Chi-Ming Che, pp 1103 DOI:10.1039/DT9950001103

Dynamic nuclear magnetic resonance studies of the 3-triphenylcyclopropenyl complexes [M(3-C3Ph3)L]PF6[M = Ni, Pd or Pt; L = MeC(CH2PPh2)3]. Crystal structure of the platinum derivative Carlo A. Ghilardi, Paolo Innocenti, Stefano Midollini, Annabella Orlandini and Alberto Vacca, pp 1109 DOI:10.1039/DT9950001109

Synthesis and structure of carboxyl-bonded oxovanadium(V) complexes incorporating -amino acid salicylaldiminates and quinolin-8-olate Sujit Mondal, Somnath Dutta and Animesh Chakravorty, pp 1115 DOI:10.1039/DT9950001115

Complexes of human lactoferrin with vanadium in oxidation states +3, +4 and +5 Clyde A. Smith, Eric W. Ainscough and Andrew M. Brodie, pp 1121 DOI:10.1039/DT9950001121

Macrocyclic ligand design. Effect of donor-set and ringsize variation on silver(I)/lead(II) discrimination within an extended series of dibenzo substituted rings Kenneth R. Adam, Darren S. Baldwin, Paul A. Duckworth, Leonard F. Lindoy, Mary McPartlin, Alan Bashall, Harold R. Powell and Peter A. Tasker, pp 1127 DOI:10.1039/DT9950001127

Synthesis and complexing properties of polyazamacrocycles with pendant N-methylenephosphinic acid Konstantinos Bazakas and Ivan Luke, pp 1133 DOI:10.1039/DT9950001133

1,5,9-Triphosphacyclododecane complexes of molybdenum and tungsten; crystal structure of tricarbonyl[1,5,9-tris(isopropyl)-1,5,9-triphosphacyclododecane]-molybdenum(0) Simon J. Coles, Peter G. Edwards, James S. Fleming and Michael B. Hursthouse, pp 1139 DOI:10.1039/DT9950001139

2,6-Diisopropylphenylimido and diphenylacetylene complexes of tungsten containing the bidentate ligands 4,4-dimethyl-2,2-bipyridine and 1,2-bis(diphenylphosphino)ethane George R. Clark, Mark W. Glenny, Alastair J. Nielson and Clifton E. F. Rickard, pp 1147 DOI:10.1039/DT9950001147

High-valent diphenylacetylene complexes of tungsten Alastair J. Nielson, Peter D. W. Boyd, George R. Clark, Patricia A. Hunt, Michael B. Hursthouse, James B. Metson, Clifton E. F. Rickard and Peter A. Schwerdtfeger, pp 1153 DOI:10.1039/DT9950001153

Co-ordination complexes of the bismuth(III) thiolate Bi(SC6F5)3 Louis J. Farrugia, Fiona J. Lawlor and Nicholas C. Norman, pp 1163 DOI:10.1039/DT9950001163

Phenylantimony(III) dithiocyanate and the crystal structure of K[SbPh(SCN)3] Glynis E. Forster, Michael J. Begley and D. Bryan Sowerby, pp 1173 DOI:10.1039/DT9950001173

Nature of the active sites in haemocyanin and iron nickel hydrogenases: the bond valence sum approach Sanchita Hati and Dipankar Datta, pp 1177 DOI:10.1039/DT9950001177

Aminocarbyne coupling reactions at M(Ph2PCH2CH2PPh2)2(M = Mo or W) sites. Synthesis and properties of the diaminoacetylene complexes trans-[MX(2-MeHNCCNHMe)-(Ph2PCH2CH2PPh2)2]A (X = F, Cl or ClO4; A = BF4 PF6 HCl2 or ClO4) and of their di(aminocarbyne)-type precursors Yu Wang, João J. R. Fraústo Da Silva, Armando J. L. Pombeiro, Maria Angela Pellinghelli, António Tiripicchio, Richard A. Henderson and Raymond L. Richards, pp 1183 DOI:10.1039/DT9950001183

Aminocarbyne coupling reactions at M(Ph2PCH2CH2PPh2)2(M = Mo or W) sites. Detailed mechanistic studies on the protonation of co-ordinated isocyanides and coupling of ligands in trans-[M(CNR)2(Ph2PCH2CH2PPh2)2](R = But or Me) Richard A. Henderson, Armando J. L. Pombeiro, Raymond L. Richards, João J. R. Fraústo da Silva and Yu Wang, pp 1193 DOI:10.1039/DT9950001193

Mechanistic studies on the substitution reactions between aquatetracyanooxotungstate(IV) and HCN-CN- and F- Jaap P. Smit, Walter Purcell, Andreas Roodt and (the late) Johann G. Leipoldt, pp 1201 DOI:10.1039/DT9950001201

Reactions of the µ-alkyne dimer [W2(-C5H4Pri)2Cl4(µ-C2Et2)]: synthesis and bonding analysis of a µ-alkyne-µ-imido bridged ditungsten complex Malcolm L. H. Green, Patrick C. McGowan and Philip Mountford, pp 1207 DOI:10.1039/DT9950001207

Crystal construction and molecular recognition for [Cr(CO)6] Dario Braga, Fabrizia Grepioni, Emilio Tedesco and A. Guy Orpen, pp 1215 DOI:10.1039/DT9950001215

Alkene epoxidation catalysed by camphor-derived -ketophosphonate complexes of molybdenum(VI) Russell Clarke, Michael Gahagan, Raymond K. Mackie, Douglas F. Foster, David J. Cole-Hamilton, Mairi Nicol and Andrew W. Montford, pp 1221 DOI:10.1039/DT9950001221

Kinetics of oxidation of azide ion by bis(dihydrogentellurato)-cuprate(III) and -argentate(III) in alkaline media Kalyan Kali Sen Gupta, Ankan Sanyal and Sakti Prosad Ghosh, pp 1227 DOI:10.1039/DT9950001227

Complexes of trimethylplatinum(IV) with butane-2,3-dione monoxime Edward W. Abel, Peter J. Heard, Kenneth Kite, Keith G. Orrell and Alexander F. Psaila, pp 1233 DOI:10.1039/DT9950001233

Hydroxide-bridged diiron(III) complexes of tetraaminodiphenol macrocyclic ligands: structure and properties Kausik K. Nanda, Sujit K. Dutta, Sujoy Baitalik, Krishnan Venkatsubramanian and Kamalaksha Nag, pp 1239 DOI:10.1039/DT9950001239

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viie

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX027

Issue 8

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX029

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP045

Synthetic, structural and electrochemical studies on some doubly bridged trichalcogen [3.3] ferrocenophanes Nicholas J. Long, Paul R. Raithby and Piero Zanello, pp 1245 DOI:10.1039/DT9950001245

Synthesis of complexes [Au(PPh3)L]+(L = primary, secondary or tertiary amine). Crystal structure of [Au(PPh3)(NMe3)][ClO4]·CH2Cl2 José Vicente, María-Teresa Chicote, Rita Guerrero and Peter G. Jones, pp 1251 DOI:10.1039/DT9950001251

Bidentate ligand transfer reactions between gold(I) complexes Manuel Bardají, Antonio Laguna and Mariano Laguna, pp 1255 DOI:10.1039/DT9950001255

Analogues of the iron-binding site in catechol 1,2-dioxygenase: iron(III) complexes of benzimidazole and pyridine-containing tridentate ligands Rathinam Viswanathan and Mallayan Palaniandavar, pp 1259 DOI:10.1039/DT9950001259

Potentiometric and spectroscopic study of ternary complexes of copper(II), 1,10-phenanthroline and oxidised glutathione Paola Piu, Gavino Sanna, Maria Antonietta Zoroddu, Renato Seeber, Riccardo Basosi and Rebecca Pogni, pp 1267 DOI:10.1039/DT9950001267

Versatile cation complexation by a calix[4]arene tetraamide (L). Synthesis and crystal structure of [ML][ClO4]2·nMeCN (M = FeII, NiII, CuII, ZnII or PbII) Paul D. Beer, Michael G. B. Drew, Philip B. Leeson and Mark I. Ogden, pp 1273 DOI:10.1039/DT9950001273

Syntheses, characterisation and crystal structures of metal complexes of a novel 1,2-dithiolate ligand, 6,7-dihydro-6-methylene-5H-1,4-dithiepine-2,3-dithiol Adam Charlton, Allan E. Underhill, Akiko Kobayashi and Hayao Kobayashi, pp 1285 DOI:10.1039/DT9950001285

Phosphorus-31 solid-state nuclear magnetic resonance spectroscopy, individual gauge for localized orbitals calculations and crystal structures of dithiadiphosphetanes [RSP(S)S]2(R = alkyl or aryl) Gisela Ohms, Ulrich Fleischer and Volker Kaiser, pp 1297 DOI:10.1039/DT9950001297

Syntheses, reactivities and molecular structures of tungsten complexes containing the diphenylphosphinodithioformato ligand Kuang-Hway Yih, Ying-Chih Lin, Ming-Chu Cheng and Yu Wang, pp 1305 DOI:10.1039/DT9950001305

Distortions in six-co-ordinate complexes of molybdenum(II) and tungsten(II). Crystal structures of mer-[Mo(SC6H2Pri3-2,4,6)2(CO)3(PMePh2)], cis,cis,cis-[W(SC6H2Me3-2,4,6)2(CO)2-(PMe2Ph)2] and [W(SeC6H3Pri2-2,6)2(CO)2(PMe2Ph)2] Timothy E. Burrow, David L. Hughes, Alan J. Lough, Michael J. Maguire, Robert H. Morris and Raymond L. Richards, pp 1315 DOI:10.1039/DT9950001315

Electron spin resonance study of the binding structures of cationic water-soluble metalloporphyrins on highly oriented deoxyribonucleic acid fibres Makoto Chikira, Shoichi Suda, Toyotaka Nakabayashi, Yoshihito Fujiwara, Takashi Ejiri, Mitsuhide Yoshikawa, Nagao Kobayashi and Heisaburo Shindo, pp 1325 DOI:10.1039/DT9950001325

Homo- and hetero-dinuclear complexes of palladium and platinum containing phosphinoacetylene and/or chloride as bridging ligands Juan Forniés, Elena Lalinde, Antonio Martín, M. Teresa Moreno and Alan J. Welch, pp 1333 DOI:10.1039/DT9950001333

Structural, far-infrared and 31P nuclear magnetic resonance studies of two-co-ordinate complexes of tris(2,4,6-trimethoxyphenyl)phosphine with gold(I) halides Lisa-Jane Baker, Raymond C. Bott, Graham A. Bowmaker, Peter C. Healy, Brian W. Skelton, Peter Schwerdtfeger and Allan H. White, pp 1341 DOI:10.1039/DT9950001341

Thermodynamic and spectroscopic studies on the complexation of silver(I) by mixed phosphorus-sulfur compounds in propylene carbonate. Crystal and molecular structure of a silver(I)-thiophosphine complex Plinio Di Bernardo, Marilena Tolazzi and Pierluigi Zanonato, pp 1349 DOI:10.1039/DT9950001349

Rhenium complex of a triply deprotonated chelated thiosemicarbazide and its conversion to a nitride complex via a hydrazide intermediate. Crystal structure of [ReCl2(NH)(NHNH2)(PPh3)2] Jonathan R. Dilworth, Jason S. Lewis, John R. Miller and Yifan Zheng, pp 1357 DOI:10.1039/DT9950001357

Prediction and observation of the structure of the zinc(II) complex of 1,5,9,13-tetraazacyclohexadecane. A crystallographic and molecular mechanics study of the conformations assumed by the macrocycle when complexed with metal ions Robert Luckay, Tracy E. Chantson, Joseph H. Reibenspies and Robert D. Hancock, pp 1363 DOI:10.1039/DT9950001363

Syntheses and crystal structures of the ruthenium carbidocarbonyl clusters [Ru5C(CO)11(µ-Br)2(3-C3H5)(µ-3-C3H5)], [Ru5C(CO)13I(µ-I)(µ-2-COMe)]-, [Ru5C(CO)14(µ-Br)2] and [Ru6C(CO)16(µ-Br)]- with novel metal frameworks Teiji Chihara and Hiroshi Yamazaki, pp 1369 DOI:10.1039/DT9950001369

Metallosupramolecular cluster assemblies based on donor-acceptor type structural frameworks. Syntheses, crystal structures and spectroscopic properties of novel triosmium alkylidyne carbonyl clusters bearing remote ferrocenyl units as electron donors Wai-Yeung Wong, Wing-Tak Wong and Kung-Kai Cheung, pp 1379 DOI:10.1039/DT9950001379

Dalton communications. Synthesis of novel mixed-metal clusters of mercury and osmium; crystal and molecular structures of cis-[Os(CO)4{(µ-Hg)Os3(CO)10(µ-2-CHCHPh)}2] and [{Os3(CO)10(µ-2-CHCHPh)}2(µ4-Hg)] Yat-Kun Au and Wing-Tak Wong, pp 1389 DOI:10.1039/DT9950001389

The preparation and characterisation of new mixed carbonyl nitro complexes of Group 6 metals Anke Sieker, Alexander J. Blake, Simon Parsons and Brian F. G. Johnson, pp 1391 DOI:10.1039/DT9950001391

Additions and corrections Harry Adams, Neil A. Bailey, David E. Fenton, Qing-Yu He, Graciela M. Escandar, Alejandro C. Olivieri, Manuel González-Sierra, Alejandro A. Frutos and Luis F. Sala, pp 1393 DOI:10.1039/DT9950001393

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viif

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX031

Issue 9

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX033

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP051

Ranitidine bismuth(III) citrate Peter J. Sadler and Hongzhe Sun, pp 1395 DOI:10.1039/DT9950001395

Protodemetallation reactions of some diphenylthallium(III) compounds with dicyclohexyldithiophosphinic acid. Crystal and molecular structures of [TlPh2{S2P(C6H11)2}], [TlPh{S2P(C6H11)2}2] and [Tl{S2P(C6H11)2}3]·CHCl3 José S. Casas, Eduardo E. Castellano, Alfonso Castiñeiras, Agustín Sánchez, José Sordo, Ezequiel M. Vázquez-López and Julio Zukerman-Schpector, pp 1403 DOI:10.1039/DT9950001403

Metal-ion speciation in blood plasma as a tool for elucidating the in vivo behaviour of radiopharmaceuticals containing 153Sm and 166Ho Neil V. Jarvis, Judith M. Wagener and Graham E. Jackson, pp 1411 DOI:10.1039/DT9950001411

Chemistry of [RuL2(PPh3)2]o, +(HL = 8-hydroxyquinoline): synthesis, structure, metal redox behaviour and isomer selectivity Mahua Menon, Amitava Pramanik, Nilkamal Bag and Animesh Chakravorty, pp 1417 DOI:10.1039/DT9950001417

Matrix-isolation and mass spectrometric studies on the vaporisation of chromium(III) bromide: characterisation of molecular CrBr4, CrBr3 and CrBr2 Paul D. Gregory and J. Steven Ogden, pp 1423 DOI:10.1039/DT9950001423

Synthesis and characterisation of lanthanide(II) aryloxides including the first structurally characterised europium(II) compound [Eu(OC6H2But2-2,6-Me-4)2(thf)3]·thf (thf = tetrahydrofuran) Johannes R. van den Hende, Peter B. Hitchcock, Stephen A. Holmes, Michael F. Lappert, Wing-Por Leung, Thomas C. W. Mak and Sanjiv Prashar, pp 1427 DOI:10.1039/DT9950001427

Synthesis and 171Yb-{1H} nuclear magnetic resonance spectra of ytterbium(II) aryloxides [Yb(OR)2(L)n][(L)n=(OEt2)2, (thf)2, (thf)3, (pyridine)2 or Me2PCH2CH2PMe2] and [{Yb(µ-OR)(X)}2](X = OR or NR2)(R= C6H2But2-2,6-Me-4, R = SiMe3, thf = tetrahydrofuran) Johannes R. van den Hende, Peter B. Hitchcock, Stephen A. Holmes and Michael F. Lappert, pp 1435 DOI:10.1039/DT9950001435

Synthesis and structural characterization of three new compounds containing [Nb6Cl12]2+ units as hydrated hydroxides Nevenka Brnievi, Pavica Planini, Robert E. McCarley, Snjeana Antoli, Marija Lui and Biserka Koji-Prodi, pp 1441 DOI:10.1039/DT9950001441

Synthesis and molecular structure of the mixed polymeric cobalt compound [Co3(SCH2CH2S)3(PEt3)3]2[Co2Cl4(µ-O2SEt2)2] Feilong Jiang, Xiulan Xie, Maochun Hong, Beisheng Kang, Rong Cao, Daxu Wu and Hanqin Liu, pp 1447 DOI:10.1039/DT9950001447

Manganese complexes of 1,3-bis(3-nitrosalicylideneamino)-propan-2-ol. Structure and magnetic and electrochemical properties Zhi-Yong Zhang, Chantal Brouca-Cabarrecq, Catherine Hemmert, Françoise Dahan and Jean-Pierre Tuchagues, pp 1453 DOI:10.1039/DT9950001453

Co-ordination chemistry of adenine (HAde): synthesis and characterization of [CuII(tren)(nucleobase)]X2[tren = tris-(2-aminoethyl)amine, X = Cl or NO3] complexes and crystal structure of [CuII(tren)(Ade)]Cl·2H2O Armando Marzotto, Antonella Ciccarese, Dore A. Clemente and Giovanni Valle, pp 1461 DOI:10.1039/DT9950001461

The electronic polarizability distribution of several substituted ferrocenes and Di(6-benzene)chromium Leonidas Phillips and Gary R. Dennis, pp 1469 DOI:10.1039/DT9950001469

Synthesis of silver(I) complexes with 1,1-bis(diphenyl-phosphino)ferrocene (dppf). Crystal structures of [Ag(dppf)(PPh3)]ClO4·2CH2Cl2, [Ag(dppf)2]ClO4·2CHCl3 and [Ag(dppf)(phen)]ClO4(phen = 1,10-phenanthroline) M. Concepción Gimeno, Peter G. Jones, Antonio Laguna and Cristina Sarroca, pp 1473 DOI:10.1039/DT9950001473

Carbon-13 nuclear magnetic resonance studies of the redox reactions of aurothiomalates with selenocyanate in aqueous solution Anvarhusein A. Isab, M. Naseem Akhtar and Abdul Rahman Al-Arfaj, pp 1483 DOI:10.1039/DT9950001483

Bromination of molybdenum carbonyls revisited: oxo complexes and routes to new materials chemistry James R. Backhouse, Helen M. Lowe, Ekkehard Sinn, Shigeru Suzuki and Simon Woodward, pp 1489 DOI:10.1039/DT9950001489

Reaction of [Os3(µ-H)2(CO)9(µ3-CNC5H4CHCH2)] with phenylacetylene. A novel type of alkylidyne-alkyne coupling in a triosmium alkylidyne cluster Wai-Yeung Wong, Suzanna Chan and Wing-Tak Wong, pp 1497 DOI:10.1039/DT9950001497

Unusual stabilities of 6,6-bis(aminomethyl)-2,2-bipyridyl chelates of transition-metal ions and crystal structures of the ligand and its copper(II) and nickel(II) complexes Zheng Wang, Joseph Reibenspies, Ramunas J. Motekaitis and Arthur E. Martell, pp 1511 DOI:10.1039/DT9950001511

Cadmium(II) complexes containing a discrete tetrakis-(carboxylato)-bridged dimetal core: isomorphous dinitratotetrakis(µ-triphenylphosphoniopropionate)dicadmium(II) dinitrate and diperchlorate, and dichlorotetrakis(µ-triphenylphosphoniopropionate)dicadmium(II) diperchlorate Song-Lin Li and Thomas C. W. Mak, pp 1519 DOI:10.1039/DT9950001519

Dalton communications. The synthesis of the first examples of water-soluble seven-co-ordinate complexes of tungsten(II) Paul K. Baker, Alyn E. Jenkins, Aidan J. Lavery, David J. Muldoon and Andrew Shawcross, pp 1525 DOI:10.1039/DT9950001525

Additions and corrections Philip J. Bailey, Grainne Conole, Brian F. G. Johnson, Jack Lewis, Mary McPartlin, Adrian Moule, Harold R. Powell and Della A. Wilkinson, pp 1527 DOI:10.1039/DT9950001527

Journals bulletin J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000X035

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viig

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX039

Issue 10

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX041

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP057

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9950000ixb

Barium and titanium aryl oxides as precursors for the preparation of thin-film oxides. The effect of bombardment by O2+ Tomás R. Belderraín, Juan P. Espinós, Asunción Fernández, Agustín R. González-Elipe, Dietmar Leinen, Angeles Monge, Margarita Paneque, Caridad Ruiz and Ernesto Carmona, pp 1529 DOI:10.1039/DT9950001529

Is the ground state of [RuO4]2- exceptional? Robert J. Deeth, pp 1537 DOI:10.1039/DT9950001537

Geometrical preference of ruthenium oxidation states: metal redox and isomerisation of [Ru(S2CNEt2)2(PPh3)2]0,+ Mahua Menon, Amitava Pramanik, Nilkamal Bag and Animesh Chakravorty, pp 1543 DOI:10.1039/DT9950001543

5-Pentamethylcyclopentadienylruthenium(II) complexes containing 6-co-ordinated dipeptides with aromatic side chains Andreas J. Gleichmann, Jens M. Wolff and William S. Sheldrick, pp 1549 DOI:10.1039/DT9950001549

Synthesis, molecular and crystal structure of tetraruthenium butterfly arene clusters Dario Braga, Fabrizia Grepioni, Janice J. Byrne, Caroline M. Martin, Brian F. G. Johnson and Alexander J. Blake, pp 1555 DOI:10.1039/DT9950001555

Homoleptic molybdenum complexes of ,-unsaturated amides and esters: preparation and crystal structures Thomas Schmidt and Richard Goddard, pp 1563 DOI:10.1039/DT9950001563

Transition-metal saccharide chemistry and biology: synthesis, characterisation, redox behaviour, biointeraction and data correlations of dinuclear chromium(III) complexes Sharda P. Kaiwar, M. S. Srinivasa Raghavan and Chebrolu P. Rao, pp 1569 DOI:10.1039/DT9950001569

Properties and crystal structure of a four-co-ordinate nickel(I) complex with the macrotricycle 1,3,6,8,12,15-hexaazatricyclo[13.3.1.1 8,12]icosane Myunghyun Paik Suh, Yeon Ja Lee and Jong Wha Jeong, pp 1577 DOI:10.1039/DT9950001577

Thermodynamics of the complexation of cerium-, europium- and erbium-(III) with 1,4,10-trioxa-7,13-diazapentadecane-N,N-diacetic acid and 1,4,10,13-tetraoxa-7,16-diazaoxa-cyclooctadecane-N,N-diacetic acid Vijay K. Manchanda, Prasanta K. Mohapatra, Chengyue Zhu and Reed M. Izatt, pp 1583 DOI:10.1039/DT9950001583

Step-wise nucleophilic substitution of bis(cyclopentadienyl)-tin(II); synthesis and structural characterisation of [{Sn(3-C5H5)[µ-NC(NMe2)2]}2] and [{Sn[S(CH2)3SC(R)][µ-NC(NMe2)2]}2](R = H or SiMe3) Andrew J. Edwards, Michael A. Paver, Paul R. Raithby, Moira-Ann Rennie, Christopher A. Russell and Dominic S. Wright, pp 1587 DOI:10.1039/DT9950001587

Reaction of tin metal powder with triorganophosphorus dihalides: isolation and spectroscopic characterisation of [PR3X][SnX3] and cis- and trans-Sn(PR3)2X4(X = Br or I; R3= Ph3, Ph2Me or PhMe2) Neil Bricklebank, Stephen M. Godfrey, Charles A. McAuliffe and Kieran C. Molloy, pp 1593 DOI:10.1039/DT9950001593

Synthesis of new alkyne-bridged ditungsten complexes [W2(CO)4(µ-HC2R)(-C5H5)2](R = Me or Ph) and the reactions of these and related alkyne-bridged complexes with chlorodiphenylphosphine Martin J. Mays, Paul F. Reinisch, Gregory A. Solan, Mary McPartlin and Harold R. Powell, pp 1597 DOI:10.1039/DT9950001597

Bis(bidentate) complexes of iminobis(diphenylphosphine chalcogenides)[M{N(XPPh2)2-X,X}2](X = S or Se; M = Ni, Pd or Pt) Pravat Bhattacharyya, Josef Novosad, Julian Phillips, Alexandra M. Z. Slawin, David J. Williams and J. Derek Woollins, pp 1607 DOI:10.1039/DT9950001607

Strategies for the assembly of homo- and hetero-nuclear metallosupramolecules containing 2,2 : 6,2-terpyridine metal-binding domains Edwin C. Constable and Alexander M. W. Cargill Thompson, pp 1615 DOI:10.1039/DT9950001615

Synthesis and nuclear magnetic resonance studies of halogeno and hydrido tris(pyrazol-1-yl)borato ruthenium(II) complexes Félix A. Jalón, Antonio Otero and Ana Rodríguez, pp 1629 DOI:10.1039/DT9950001629

Investigation of the trans influence in transition-metal nitride complexes Paul D. Lyne and D. Michael P. Mingos, pp 1635 DOI:10.1039/DT9950001635

Synthesis and characterisation of manganese(II) chalcogenolato complexes. Crystal and molecular structure of [{Mn(µ-SeC6H2Me3-2,4,6)2}] Manfred Bochmann, Anne K. Powell and Xuejing Song, pp 1645 DOI:10.1039/DT9950001645

Chalcogenolato complexes of bismuth and antimony. Syntheses, thermolysis reactions, and crystal structure of Sb(SC6H2Pri3-2,4,6)3 Manfred Bochmann, Xuejing Song, Michael B. Hursthouse and Alexander Karaulov, pp 1649 DOI:10.1039/DT9950001649

Steric properties of sulfoxide ligands. Synthesis and crystal structure of mer-[RuCl3(Ph2So)3] Mario Calligaris, Paolo Faleschini, Flavia Todone, Enzo Alessio and Silvano Geremia, pp 1653 DOI:10.1039/DT9950001653

Mono- and bis-diazenido complexes of rhenium(III) containing bidentate ditertiary phosphine ligands. The crystal and molecular structures of [Re(NNC6H4Me-4)2(Ph2PCH2CH2PPh2)2][PF6]·2dmf, [Re(NNC6H4Cl-4)2(Me2PCH2CH2PMe2)2][PF6] and [ReCl(NNC6H4Me-4)(Me2PCH2CH2PMe2)2][PF6] Brian Coutinho, Jonathan R. Dilworth, Panna Jobanputra, Russell M. Thompson, Siegbert Schmid, Joachim Strähle and Colin M. Archer, pp 1663 DOI:10.1039/DT9950001663

Powder route to crystal structures: X-ray powder diffraction determination of polymeric silver imidazolate Norberto Masciocchi, Massimo Moret, Paolo Cairati, Angelo Sironi, G. Attilio Ardizzoia and Girolamo La Monica, pp 1671 DOI:10.1039/DT9950001671

Lipophilic hexadentate gallium, indium and iron complexes of new phenolate-derivatized cyclohexanetriamines as potential in vivo metal-transfer reagents James E. Bollinger, Joel T. Mague, Charles J. OConnor, William A. Banks and D. Max Roundhill, pp 1677 DOI:10.1039/DT9950001677

General strategy for inducing C-H bond fission (cycloiridation) in some aryl, heterocyclic, alkenyl or alkyl groups in azines derived from aldehydes or methyl ketones Sarath D. Perera, Bernard L. Shaw and Mark Thornton-Pett, pp 1689 DOI:10.1039/DT9950001689

Palladium complexes of azines, -diazines and -2-pyridylazines containing (1R)-(+)-camphor or (1R)-(-)-fenchone groups Bernard L. Shaw, Mark Thornton-Pett and Jonathan D. Vessey, pp 1697 DOI:10.1039/DT9950001697

Formation of 2-aroyl, 1-halogenocarbyne or sterically crowded aryldiazenide ligands in the reactions of ring-substituted tricarbonyl[hydrotris(pyrazolyl)borato]-molybdate and -tungstate anions with arenediazonium cations and related oxidants Fergus J. Lalor, Timothy J. Desmond, Gerard M. Cotter, Claire A. Shanahan, George Ferguson, Masood Parvez and Barbara Ruhl, pp 1709 DOI:10.1039/DT9950001709

Synthesis and characterization of new di- and tetra-meric vanadium intermediates of olefin polymerization catalysts. Crystal structures of [V2(µ-Cl)2Cl4(MeCo2Et)4] and [{VOCl2[CH2(CO2Et)2]}4]·2CH2Cl2 Piotr Sobota, Jolanta Ejfler, Slawomir Szafert, Tadeusz Glowiak, Igor O. Fritzky and Krzysztof Szczegot, pp 1727 DOI:10.1039/DT9950001727

Synthesis and characterization of phenylimidorhenium(V) compounds containing polypyridyl ligands. Crystal structures of mer-[Re(NPh)Cl3(bipy)], trans-[Re(NPh)(OEt)(bipy)2][PF6]2 and trans-[Re(NPh)Cl2(terpy)]PF6(bipy = 2,2-bipyridine, terpy = 2,2:6,2-terpyridine) Mohammed Bakir and B. Patrick Sullivan, pp 1733 DOI:10.1039/DT9950001733

Hydrolytically-sensitive hexaimino and hydrolytically-inert octaamino-cryptand hosts for dicopper Charles J. Harding, Qin Lu, John F. Malone, Debbie J. Marrs, Noreen Martin, Vickie McKee and Jane Nelson, pp 1739 DOI:10.1039/DT9950001739

Crystal structure and molecular mechanics, dynamics and quantum-mechanical ab initio studies of 2,2,4,4,6,6-hexakis(p-phenoxyphenoxy)-25,45,65-cyclotriphosphaza-1,3,5-triene Giuliano Bandoli, Mario Gleria, Giuseppe M. Lombardo and Giuseppe C. Pappalardo, pp 1749 DOI:10.1039/DT9950001749

Enhanced slip distortions in 1-phenyl-2-methyldicarbaplatinaboranes. Conformational destabilisation in the isomerisation of 1-phenyldicarbaplatinaboranes Thomas D. McGrath and Alan J. Welch, pp 1755 DOI:10.1039/DT9950001755

Delton communication. A dimer of dimers and a polymer of tetramers: structures of copper complexes involving 6-fluoro-2-hydroxypyridine Alexander J. Blake, Craig M. Grant, Simon Parsons and Richard E. P. Winpenny, pp 1765 DOI:10.1039/DT9950001765

Additions and corrections Pierre Braunstein, Yves Chauvin, Jens Nähring, André DeCian and Jean Fischer, pp 1767 DOI:10.1039/DT9950001767

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX043

Back matter J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BP065

Issue 11

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX045

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP069

Amphiphilic terpyridine complexes of ruthenium and rhodium displaying lyotropic mesomorphism John D. Holbrey, Gordon J. T. Tiddy and Duncan W. Bruce, pp 1769 DOI:10.1039/DT9950001769

Second- and third-row transition-metal complexes of dihydroxybenzoic acids, and the crystal structure of [NMe4]2[MoO2(2,3-dhb)2]·1.5H2O (2,3-H2dhb = 2,3-dihydroxybenzoic acid) William P. Griffith, Helena I. S. Nogueira, Bernardeta C. Parkin, Richard N. Sheppard, Andrew J. P. White and David J. Williams, pp 1775 DOI:10.1039/DT9950001775

Bis(alkynyl) and alkynyl-vinylidene iron(II) complexes with monodentate phosphite ligands Gabriele Albertin, Stefano Antoniutti, Emilio Bordignon, Elena Del Ministro, Sandra Ianelli and Giancarlo Pelizzi, pp 1783 DOI:10.1039/DT9950001783

Ligand substitution in [Fe2(CO)6(NO)(µ-PPh2)] and the isomerism of [Fe2(CO)4(PMe3)2(NO)(µ-PPh2)] Jiann T. Lin, Yung Chun Chou, Yeh E. Shih, Fong E. Hong, Yuh S. Wen, Su-Ching Lin and Mei-Man Chen, pp 1791 DOI:10.1039/DT9950001791

Aluminium(III)-pyrocatechol violet equilibria: a potentiometric study Stuart L. Simpson, Staffan Sjöberg and Kipton J. Powell, pp 1799 DOI:10.1039/DT9950001799

Synthesis of tetracobalt clusters from dicobalt alkyne complexes John C. Jeffery, Regina M. S. Pereira, Maria D. Vargas and Michael J. Went, pp 1805 DOI:10.1039/DT9950001805

New hetero- and homo-metallic dihydroxo-bridged dinuclear complexes of cobalt(III) and chromium(III): synthesis, spectroscopy and crystal structures Takashi Fujihara, Akira Fuyuhiro and Sumio Kaizaki, pp 1813 DOI:10.1039/DT9950001813

Base hydrolysis in homometallic dinuclear chromium(III) complexes bridged by hydroxide and carboxylate Takashi Fujihara, Yuriko Abe and Sumio Kaizaki, pp 1823 DOI:10.1039/DT9950001823

Heteropolyperoxo- and isopolyperoxo-tungstates and-molybdates as catalysts for the oxidation of tertiary amines, alkenes and alcohols Alan J. Bailey, William P. Griffith and Bernardeta C. Parkin, pp 1833 DOI:10.1039/DT9950001833

Alkyne insertions into the -Pd-C(sp2, ferrocene) bond of cyclopalladated complexes containing Schiff bases derived from ferrocene. Crystal structures of [Pd{[(EtCCEt)2(5-C5H3CRNCH2Ph)]Fe(5-C5H5)}Cl](R = H or Me) Concepción López, Ramón Bosque, Xavier Solans, Mercè Font-Bardía, Jack Silver and George Fern, pp 1839 DOI:10.1039/DT9950001839

Synthesis, electrochemical and magnetic properties of new acyclic side-off binuclear copper(II) complexes Sambandhan Karunakaran and Muthuswamy Kandaswamy, pp 1851 DOI:10.1039/DT9950001851

Nucleophilic additions to the chiral rhenium alkene complexes [Re(5-C5H5)(NO)(PPh3)(H2CCHR)]BF4(R = H, Me, CH2CH2Me, Ph or CH2Ph): regio-, diastereo- and enantio-selectivities Tang-Sheng Peng, Atta M. Arif and J. A. Gladysz, pp 1857 DOI:10.1039/DT9950001857

Synthesis, resolution and reactions of (±)-1-(dimethylarsino)-2-(methylphenylphosphino)benzene. Crystal and molecular structure of [(S), (S)]-(+)589-{2-[1-(dimethylamino)ethyl]phenyl-C1,N}[1-(dimethylarsino)-2-(methylphenylphosphino)benzene-As,P]palladium(II) hexafluorophosphate Roy J. Doyle, Geoffrey Salem and Anthony C. Willis, pp 1867 DOI:10.1039/DT9950001867

Synthesis of [Mo(6-NC5H3Me2-2,6)(6-C6H5Me)]: photoelectron spectra and electronic structure of some transition-metal 6-2,6-dimethylpyridine complexes Jennifer Ashmore, Jennifer C. Green, Malcolm L. H. Green, Marcus Lovell Smith, Christian Mehnert and Edward J. Wucherer, pp 1873 DOI:10.1039/DT9950001873

Linear enthalpy relationships in co-ordination reactions of macrocyclic ligands with copper(II) Hua-Kuan Lin, Shou-Rong Zhu, Zong-Xin Gu and Yun-Ti Chen, pp 1879 DOI:10.1039/DT9950001879

A mononuclear copper(II) complex of an unsymmetrical dinucleating ligand Harry Adams, Neil A. Bailey, David E. Fenton and George Papageorgiou, pp 1883 DOI:10.1039/DT9950001883

Synthesis of selenophosphinic and tellurophosphinic amides and amidato complexes. Crystal structures of But2P(Te)NH(C6H11), [Ti(-C5H5)Cl2{But2P(Se)NPri}] and [TiCl2{But2P(Se)N(C6H11)}2]·C7H8 Manfred Bochmann, Gabriel C. Bwembya, Nicola Whilton, Xuejing Song, Michael B. Hursthouse, Simon J. Coles and Alexander Karaulov, pp 1887 DOI:10.1039/DT9950001887

Synthesis, structural characterization, electrochemical properties and polymerization behaviour of the first silicon-bridged [1.1]ferrocenophane [{Fe(-C5H4)2SiMe2}2] David L. Zechel, Daniel A. Foucher, John K. Pudelski, Glenn P. A. Yap, Arnold L. Rheingold and Ian Manners, pp 1893 DOI:10.1039/DT9950001893

Lithioalkynyl iron(II) or ruthenium(II) complexes as precursors of novel alkynyl and vinylidene derivatives: heterobimetallic complexes containing a bridging ethynediyl system M. Pilar Gamasa, José Gimeno, Isabelle Godefroy, Elena Lastra, Blanca M. Martín-Vaca, Santiago García-Granda and Angel Gutierrez-Rodriguez, pp 1901 DOI:10.1039/DT9950001901

Evaluation of the 2,6-diisopropylphenylimido ligand as a steric force in d1 and d2 monomeric octahedral complexes of tungsten George R. Clark, Alastair J. Nielson and Clifton E. F. Rickard, pp 1907 DOI:10.1039/DT9950001907

Dalton communications. Molecular zinc oxide and sulfide complexes stabilized by pyrazolylborate ligands Michael Ruf and Heinrich Vahrenkamp, pp 1915 DOI:10.1039/DT9950001915

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viih

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX047

Back matter J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BP075

Issue 12

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX049

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP077

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500000xi

Photoelectrochemical oxidation of tris(dimethyldithiocarbamato-S,S)cobalt(III) Richard G. Compton, John C. Eklund, Allan Hallik, Sunita Kumbhat, Lembit Nei, Alan M. Bond, Ray Colton and Yvonne A. Mah, pp 1917 DOI:10.1039/DT9950001917

Tris{bis[imino(methoxy)methyl]aminato}cobalt(III): an electronic analogue of tris(-diketonates) Roman Boa, Mária Hvastijová and Jozef Koíek, pp 1921 DOI:10.1039/DT9950001921

Photoelectron spectroscopic investigation of isomeric methyl (isocyanide), 2-iminoacyl and 3-azaallyl complexes of molybdenum and tungsten P. James Daff and Nikolas Kaltsoyannis, pp 1925 DOI:10.1039/DT9950001925

Di- and tri-metallic complexes containing two bridging cyclodiphosphazane ligands: the crystal structure of [MO2(CO)8{µ-cis-[PhNP(OC6H4Me-p)]2}2] Venkata S. Reddy, Setharampattu S. Krishnamurthy and Munirathinam Nethaji, pp 1933 DOI:10.1039/DT9950001933

Structure and properties of copper-(II) and -(I) complexes with 2,6-bis[2-(thiophen-2-ylmethylimino)ethyl]pyridine Claude Beguin, Pierre Chautemps, Abdelilah El Marzouki, Jean-Louis Pierre, Sidi M. Refaif, Guy Serratrice, Eric Saint-Aman and Paul Rey, pp 1939 DOI:10.1039/DT9950001939

Structure refinement from powder neutron diffraction data of Sn10W16O44, which contains a metal-metal bonded W6O12 cluster Simon J. Hibble and Siobhan A. McGrellis, pp 1947 DOI:10.1039/DT9950001947

Synthesis and structure of bis(phosphaallyl) complexes with two-co-ordinate phosphorus Uwe Wirringa, Heike Voelker, Herbert W. Roesky, Yuri Shermolovich, Leonid Markovski, Isabel Usón, Mathias Noltemeyer and Hans-Georg Schmidt, pp 1951 DOI:10.1039/DT9950001951

Complexes of 2-diphenylphosphinobenzenethiol and 2-diphenylphosphino-6-trimethylsilylbenzenethiol with rhodium and iridium. Crystal and molecular structures of [IrCl2(Ph2PC6H4S)(PMePh2)2] and [Ir(Ph2PC6H4S)3]·0.75CH2Cl2 Jonathan R. Dilworth, Canzhong Lu, John R. Miller and Yifan Zheng, pp 1957 DOI:10.1039/DT9950001957

Binding of the {MoFe3S4}3+ core by a tridentate thiolate and chemical analogues of the molybdenum co-ordination environment in the iron-molybdenum cofactor of nitrogenase J. Elaine Barclay, David J. Evans, Gabriel Garcia, M. Dolores Santana, M. Carmen Torralba and Juan M. Yago, pp 1965 DOI:10.1039/DT9950001965

Ligand-centred chemistry of molybdenum organoimides. Formation of C-C bonds via generation of nitrogen ylides, stereospecific conversion of an allylimide into alkylvinyl-imides, liberation of cyanoformate or amino acid esters Shirley A. Fairhurst, David L. Hughes, Saad K. Ibrahim, Marie-Laurence Abasq, Jean Talarmin, M. Arlete Queiros, Antonio Fonseca and Christopher J. Pickett, pp 1973 DOI:10.1039/DT9950001973

Solution and solid-state nuclear magnetic resonance studies on interstitial atoms within transition-metal carbonyl clusters Brian T. Heaton, Jonathan A. Iggo, Giuliano Longoni and Suzanne Mulley, pp 1985 DOI:10.1039/DT9950001985

Facile synthesis of Sn4N4 cubanes; syntheses and structures of [Sn(NC6H11)]4 and [Sn(2-NCH2C5H4N)]4 Robert E. Allan, Michael A. Beswick, Andrew J. Edwards, Michael A. Paver, Moira-Ann Rennie, Paul R. Raithby and Dominic S. Wright, pp 1991 DOI:10.1039/DT9950001991

Diphenylantimony(V) oxide halides and thiocyanate; the crystal structures of dimeric diphenylantimony(V) bromide oxide and tetrameric diphenylantimony(V) oxide fluoride and thiocyanate I. Gary Southerington, Glynis E. Forster, Michael J. Begley and D. Bryan Sowerby, pp 1995 DOI:10.1039/DT9950001995

Reactivity of the P-N bond in the halide salts of bis[bis(diphenylphosphino)methylamine]platinum(II) C. Scott Browning and David H. Farrar, pp 2005 DOI:10.1039/DT9950002005

Photolysis of the [Fe(CN)5(NO)]2- ion in water and poly(vinyl alcohol) films: evidence for cyano radical, cyanide ion and nitric oxide loss and redox pathways Marcelo G. de Oliveira, G. John Langley and Antony J. Rest, pp 2013 DOI:10.1039/DT9950002013

Kinetics and mechanism of addition of tertiary phosphines and phosphites to the dicarbonyl(5-cyclopentadienyl)-(-ethene)iron cation Sandra Chapman and Leon A. P. Kane-Maguire, pp 2021 DOI:10.1039/DT9950002021

Steric control over the complex-formation and chelation kinetics of cis-bis(amine)palladium(II) complexes with methionine and S-methylcysteine in weakly acidic aqueous solution Surapong Suvachittanont and Rudi van Eldik, pp 2027 DOI:10.1039/DT9950002027

Syntheses and structures of nickel(0) complexes containing the methyl methacrylate monomer as ligand Adam P. Jarvis, David M. Haddleton, John A. Segal and Andrew McCamley, pp 2033 DOI:10.1039/DT9950002033

Formation and decomposition study of electrochemically-generated nickel(III)-nota complexes in aqueous solution (nota3-= 1,4,7-triazacyclononane-N,N,N-triacetate) Baltazar de Castro, João Gomes, M. Paula M. Marques and Carlos F. G. C. Geraldes, pp 2041 DOI:10.1039/DT9950002041

Synthesis, crystal structures and physical properties of µ-oxo-µ-carboxylato-diiron(III) complexes with tripodal polybenzimidazole ligands containing distinct iron sites Shuangxi Wang, Qinhui Luo, Ximeng Wang, Liufang Wang and Kaibei Yu, pp 2045 DOI:10.1039/DT9950002045

Highly selective mono- and di-alkylation of the backbone of complexes of type fac-[M(CO)3{E,Z-PPh2CH2C(But)N-NC(But)CH2PPh2}](M = Mo or W) Uchenna U. Ike, Sarath D. Perera, Bernard L. Shaw and Mark Thornton-Pett, pp 2057 DOI:10.1039/DT9950002057

Preparation and characterization of the first isothiazolyl and isothiazolinylidene complexes of gold (I) Helgard G. Raubenheimer, Mieke Desmet and Gert J. Kruger, pp 2067 DOI:10.1039/DT9950002067

Microwave-assisted solid-state reactions involving metal powders A. Gavin Whittaker and D. Michael P. Mingos, pp 2073 DOI:10.1039/DT9950002073

Characterisation of the predominant low-pH lead(II)-hydroxo cation, [Pb4(OH)4]4+; crystal structure of [Pb4(OH)4][NO3]4 and the implications of basic salt formation on the transport of lead in the aqueous environment Susan M. Grimes, Simon R. Johnston and Isaac Abrahams, pp 2081 DOI:10.1039/DT9950002081

Synthesis of new heterodinuclear aminocarbyne complexes: crystal structures of [AuW{µ-CN(Et)Me}C6F5)(CO)2(-C5H5)] and [{CuW{µ-CN(Et)Me}Cl(CO)2(-C5H5)}2] Vincenzo G. Albano, Luigi Busetto, Maria Cristina Cassani, Piera Sabatino, Arndt Schmitz and Valerio Zanotti, pp 2087 DOI:10.1039/DT9950002087

Synthesis, crystal structure and nuclear magnetic resonance spectral study of the (+)-(R,R,R*,S*)- and (-)-(S,S,R*,S*)-enantiomers of the chiral diphosphine [C6H4(PPhCH2CHO)2CMe2]-1,2 Anthony G. Avent, Peter B. Hitchcock, Michael F. Lappert and Ping Yin, pp 2095 DOI:10.1039/DT9950002095

Chiral tetraphenylcyclopentadienyl complexes of ruthenium and palladium; crystal structure of [Ru(5-C5Ph4R1*)(CO)2Br](R1*= menthyl) James A. Ramsden, David J. Milner, Paul D. Hempstead, Neil A. Bailey and Colin White, pp 2101 DOI:10.1039/DT9950002101

Dalton communications. Synthesis and structural characterisation of [Pd4(µ3-CH)(µ-Cl)3(PBut3)4]: a tetrahedral palladium cluster with a µ3-methylidyne ligand Andrew D. Burrows, D. Michael P. Mingos, Stephan Menzer, Ramón Vilar and David J. Williams, pp 2107 DOI:10.1039/DT9950002107

Self-assembly of a columnar polymeric calcium phosphinate derived from camphene William Henderson, Meto T. Leach, Brian K. Nicholson and Michal Sabat, pp 2109 DOI:10.1039/DT9950002109

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX051

Issue 13

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX053

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP087

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9950000ixc

Arylimido complexes of chromium-(VI), -(V) and -(IV) Andreas A. Danopoulos, Geoffrey Wilkinson, Tracy K. N. Sweet and Michael B. Hursthouse, pp 2111 DOI:10.1039/DT9950002111

Molecular dynamics of tricarbonyl(pentamethylbenzene)-chromium: a 13C solid-state nuclear magnetic resonance study Patrick J. Barrie, Christiana A. Mitsopoulou and Edward W. Randall, pp 2125 DOI:10.1039/DT9950002125

Neutral thiolates of antimony(III) and bismuth(III) William Clegg, Mark R. J. Elsegood, Louis J. Farrugia, Fiona J. Lawlor, Nicholas C. Norman and Andrew J. Scott, pp 2129 DOI:10.1039/DT9950002129

Preparation, structure and reactivity of dinuclear aminothiolate-bridged iridium complexes Elena Fernández, Aurora Ruiz, Sergio Castillón, Carmen Claver, Joan F. Piniella, Angel Alvarez-Larena and Gabriel Germain, pp 2137 DOI:10.1039/DT9950002137

Crystal structure and magnetic properties of [Cu(ox)(py)2](py = pyridine): a ferromagnetic oxalate-bridged zigzag chain complex José Suárez-Varela, José M. Dominguez-Vera, Enrique Colacio, Juan C. Avila-Rosón, Miguel A. Hidalgo and Daniel Martín-Ramos, pp 2143 DOI:10.1039/DT9950002143

Hydrothermal synthesis and crystal structure of the microporous gallophosphate [NH4]4[Ga8P8O32(OH)4(H2O)4]·4H2O·0.64PrOH with an octahedral-tetrahedral framework Shouhua Feng, Xiuting Xu, Guangdi Yang, Ruren Xu and Fredrik P. Glasser, pp 2147 DOI:10.1039/DT9950002147

Diphenylantimony(V) oxo/chloro carboxylates and phosphinates: crystal structures of {SbPh2Cl[O2P(C6H11)2]}2O and [SbPh2(O2CPh)2]2O Musa A. Said, K. C. Kumara Swamy, Kamlesh Babu, K. Aparna and M. Nethaji, pp 2151 DOI:10.1039/DT9950002151

Synthesis and carbonylation studies on methylpalladium(II) complexes containing chelating pyridinecarboxylate ligands: dynamic behaviour of the ligands and implications for the carbonylation mechanism Hong Jin, Kingsley J. Cavell, Brian W. Skelton and Allan H. White, pp 2159 DOI:10.1039/DT9950002159

Synthesis, reactivity and catalytic activity of [RuH(1-OCMe2)(CO)2(PPri3)2]BF4 Reinaldo Atencio, Cristina Bohanna, Miguel A. Esteruelas, Fernando J. Lahoz and Luis A. Oro, pp 2171 DOI:10.1039/DT9950002171

Non-polymeric diruthenium(II,III) carboxylates. Crystal structures of [Ru2Cl(µ-O2CCMe3)4(H2O)] and [Ru2Cl(µ-O2CCHMe2)4(thf)](thf = tetrahydrofuran) M. Carmen Barral, Reyes Jiménez-Aparicio, José L. Priego, Elia C. Royer, M. José Saucedo, Francisco A. Urbanos and Ulises Amador, pp 2183 DOI:10.1039/DT9950002183

Substitution of nitrido by the oxo group in reactions of [ReNCl2(PPh3)2] with multidentate N,O--donor chelates. Crystal structure of [ReOCl2(PPh3)(HL)][H2L = 2,6-bis(hydroxymethyl)pyridine] Thomas I. A. Gerber, Johan Bruwer, Giuliano Bandoli, Joanne Perils and Jan G. H. du Preez, pp 2189 DOI:10.1039/DT9950002189

Molecular structure of 1-(dichloroboryl)pentaborane(9), in the gas phase as determined by electron diffraction and supported by theoretical calculations Paul T. Brain, David W. H. Rankin, Heather E. Robertson, Ian L. Alberts, Anthony J. Downs, Tim M. Greene, Matthias Hofmann and Paul von Ragué Schleyer, pp 2193 DOI:10.1039/DT9950002193

Syntheses, structures and properties of copper(I) co-ordination polymers with bridging phenazine: construction of one- and two-dimensional structures with - stacking of phenazine Takayoshi Kuroda-Sowa, Megumu Munakata, Hajime Matsuda, Shin-ichi Akiyama and Masahiko Maekawa, pp 2201 DOI:10.1039/DT9950002201

Synthetic, structural and magnetic studies of asymmetric trinuclear copper(II) compounds [CuX2(Hae)2][Cu2(ae)2X2](X = Cl or Br; Hae = 2-aminoethanol) Sari Myllyviita, Reijo Sillanpää, Jeroen J. A. Kolnaar and Jan Reedijk, pp 2209 DOI:10.1039/DT9950002209

Synthesis, crystal structure and catalytic activities of [RuIII(bbpc)(PPh3)Cl][H2bbpc = 1,2-bis(4-tert-butylpyridine-2-carboxamido)-4,5-dichlorobenzene] Po-Hung Ko, Tai-Yuen Chen, Jin Zhu, Kin-Fai Cheng, Shie-Ming Peng and Chi-Ming Che, pp 2215 DOI:10.1039/DT9950002215

Electron-transfer reactions and the self-exchange rate of the perruthenate(VII)-ruthenate(VI) couple Tai-Chu Lau and Sophia L. L. Kong, pp 2221 DOI:10.1039/DT9950002221

Effects of protonation in decavanadates: crystal structure of tetrakis(n-hexylammonium) dihydrogendecavanadate(V) Pascual Román, Ana Aranzabe, Antonio Luque, Juan M. Gutiérrez-Zorrilla and Martín Martínez-Ripoll, pp 2225 DOI:10.1039/DT9950002225

Supramolecular chemistry of [{M(CO)3(µ3-OH)}4](M = Mn or Re): a modular approach to crystal engineering of superdiamondoid networks Steven B. Copp, K. Travis Holman, Jeffrey O. S. Sangster, S. Subramanian and Michael J. Zaworotko, pp 2233 DOI:10.1039/DT9950002233

Synthesis and electrochemistry of heterobridged gold(I) and gold(II) complexes of pyridine-2-thiolate. Crystal structures of [Au2{µ-(CH2)2PPh2}(µ-C5H4NS)] and [Au2{µ-(CH2)2PPh2}(µ-C5H4NS)Br2] Manuel Bardají, Neil G. Connelly, M. Concepción Gimeno, Peter G. Jones, Antonio Laguna and Mariano Laguna, pp 2245 DOI:10.1039/DT9950002245

Reactions of ytterbium(II) amides with various Brønsted acids, CS2 or LiNR2; crystal structures of [{Yb(NR2)(µ-OCBut3)}2] and [Yb(OCBut3)2(thf)2](R = SiMe3, thf = tetrahydrofuran) Johannes R. van den Hende, Peter B. Hitchcock and Michael F. Lappert, pp 2251 DOI:10.1039/DT9950002251

Nuclear magnetic resonance studies of neutral lanthanide(III) complexes with tetraaza-macrocyclic ligands containing three phosphinate and one carboxamide co-ordinating arms Silvio Aime, Mauro Botta, David Parker and J. A. Gareth Williams, pp 2259 DOI:10.1039/DT9950002259

Mechanism of the oxidation of DL-penicillamine and glutathione by chromium(VI) in aqueous solution Donovan A. Dixon, Tara P. Dasgupta and Novelette P. Sadler, pp 2267 DOI:10.1039/DT9950002267

Characterisation of the tin(II) hydroxide cation [Sn3(OH)4]2+, and the crystal structure of tritin(II) tetrahydroxide dinitrate John D. Donaldson, Susan M. Grimes, Simon R. Johnston and Isaac Abrahams, pp 2273 DOI:10.1039/DT9950002273

Neutral oxorhenium(V) complexes with tridentate dithiolates and monodentate alkane- or arene-thiolate coligands Hartmut Spies, Thomas Fietz, Hans-Jürgen Pietzsch, Bernd Johannsen, Peter Leibnitz, Günter Reck, Dieter Scheller and Klaus Klostermann, pp 2277 DOI:10.1039/DT9950002277

Boratropic rearrangements in tris(pyrazolyl)borate molybdenum mononitrosyl complexes: effects of co-ligands Mercedes Cano, Jose V. Heras, Angeles Monge, Elena Pinilla, Elena Santamaria, Helen A. Hinton, Christopher J. Jones and Jon A. McCleverty, pp 2281 DOI:10.1039/DT9950002281

New 1,4,7,10-tetraazacyclotridecane-11,13-dione ligands appended with additional donor(s) 8-methylquinoline(s): crystal structures and characterization of their copper(II) complexes Xian He Bu, Dao Li An, Yun Ti Chen, Mitsuhiko Shionoya and Eiichi Kimura, pp 2289 DOI:10.1039/DT9950002289

Transition-metal complexes of cyclohexane-1,2-dione bis(thiosemicarbazone)(H2L). Crystal structures of [ZnL(OH2)]·dmf (dmf = dimethylformamide) and [Zn(H2L)Cl]Cl·2H2O Maria C. Rodríguez-Argüelles, Luigi Pietro Battaglia, Marisa Belicchi Ferrari, Giovanna Gasparri Fava, Corrado Pelizzi and Giorgio Pelosi, pp 2297 DOI:10.1039/DT9950002297

Synthesis, magnetic and mass spectrometric studies on dinuclear complexes based on Schiff-base triazolic ligands Beatriz Cabezón, Angela Sastre, Tomás Torres, Wolfram Schäfer, Juan José Borrás-Almenar and Eugenio Coronado, pp 2305 DOI:10.1039/DT9950002305

Dalton communications. Syntheses, structures and magnetic studies of homometallic manganese and heterometallic iron-sodium one-dimensional polymers Alexander J. Blake, Craig M. Grant, Simon Parsons, Jeremy M. Rawson, Gregory A. Solan and Richard E. P. Winpenny, pp 2311 DOI:10.1039/DT9950002311

Rapid synthesis of magnesium aluminophosphate-5 by microwave dielectric heating Sarah L. Cresswell, John R. Parsonage, Philip G. Riby and Michael J. K. Thomas, pp 2315 DOI:10.1039/DT9950002315

Copper(II) chloride-1-methylbenzotriazole chemistry: variation of product as a function of metal-to-ligand reaction ratio; synthesis, structure and properties of a dinuclear complex and a novel chain polymer with two alternating chromophores Konstantina Skorda, Evangelos G. Bakalbassis, Jerzy Mrozinski, Spyros P. Perlepes, Catherine P. Raptopoulou and Aris Terzis, pp 2317 DOI:10.1039/DT9950002317

Reaction of CH2(Ph2PSe)2 with [Ru3(CO)12]. Crystal structure of [Ru4Se4(CO)10(Ph2PCH2PPh2)], a missing link in the [M4E4L12] cubane series (M = Group 8 metal, E = chalcogenido ligand) Daniele Cauzzi, Claudia Graiff, Maurizio Lanfranchi, Giovanni Predieri and Antonio Tiripicchio, pp 2321 DOI:10.1039/DT9950002321

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX055

Issue 14

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX057

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP095

Heteroleptic tripodal complexes of copper(II): towards a synthetic model for the active site in galactose oxidase Harry Adams, Neil A. Bailey, Cecilia O. Rodriguez de Barbarin, David E. Fenton and Qing-Yu He, pp 2323 DOI:10.1039/DT9950002323

Natural glycine unidentate on copper(II): a novel mode of bonding Hywel O. Davies, Robert D. Gillard, Michael B. Hursthouse and Alexander Karaulov, pp 2333 DOI:10.1039/DT9950002333

Synthesis and structural characterisation of dithiocarbamate-stabilised dimeric molybdenum(V) imido complexes via oxo substitution reactions with organic isocyanates Thérèse A. Coffey, Glyn D. Forster and Graeme Hogarth, pp 2337 DOI:10.1039/DT9950002337

Chemistry of molybdenum complexes with (triphenylmethyl)allene Bor-Chen Huang, Iuan-Yuan Wu, Ying-Chih Lin, Shie-Ming Peng and Gene-Hsiang Lee, pp 2351 DOI:10.1039/DT9950002351

The electronic structure of the carbonyl dihalides, COF2, COCl2, COBr2, COClF, COBrF and COBrCl: a combined computational and experimental study Paul Sherwood, Elaine A. Seddon, Martyn F. Guest, Michael J. Parkington, T. Anthony Ryan and Kenneth R. Seddon, pp 2359 DOI:10.1039/DT9950002359

Polymeric and bimetallic complexes of diisopropyl monothiophosphate Julian R. Phillips, Julia C. Poat, Alexandra M. Z. Slawin, David J. Williams, Paul T. Wood and J. Derek Woollins, pp 2369 DOI:10.1039/DT9950002369

Mono- and poly-nuclear cryptate complexes of cage-like azamacrocyclic compounds: a thermodynamic and electrochemical approach Carla Bazzicalupi, Andrea Bencini, Antonio Bianchi, Vieri Fusi, Laura Mazzanti, Piero Paoletti, Barbara Valtancoli, Gilab Golub, Haim Cohen and Dan Meyerstein, pp 2377 DOI:10.1039/DT9950002377

Porphyrin-like macrocyclic complexes: molecular and electronic structure of (5,14-dihydro-6,8,15,17-tetramethyldibenzo[b,i][1,4,8,11]tetraazacyclotetradecinato)copper(II) Giampaolo Ricciardi, Alfonso Bavoso, Angela Rosa, Francesco Lelj and Yury Cizov, pp 2385 DOI:10.1039/DT9950002385

Effect of phenyl substitution on bonding in 3-benzyl complexes of platinum Louise E. Crascall and John L. Spencer, pp 2391 DOI:10.1039/DT9950002391

Novel heterotrinuclear, PtAg2, and hexanuclear, Pt2Ag4, compounds containing bridging alkynyl groups. Crystal structure of [Pt2Ag4(C6F5)4(µ3-2-CCPh)4(PPh3)2]·0.5CH2Cl2 Irene Ara, Juan Forniés, Elena Lalinde, M. Teresa Moreno and Milagros Tomás, pp 2397 DOI:10.1039/DT9950002397

Reactivity patterns of the unsaturated tetrahedral cluster [Re4(µ3-H)4(CO)12]. Easy addition of four MeCN molecules and ionic or neutral fragmentation pathways of the spiked-triangle intermediate [Re4(µ-H)4(CO)12(NCMe)4] Tiziana Beringhelli, Giuseppe D'Alfonso and Marta Zarini, pp 2407 DOI:10.1039/DT9950002407

Resonance-Raman spectra and excited-state geometry of the bis(µ-acetato)(µ-oxo) ruthenium(III) dimeric ion [Ru2(µ-O2CMe)2(µ-O)(py)6]2+(py = pyridine) Cecilia Cipriano, Robin J. H. Clark, Dan Oprescu and Robert Withnall, pp 2417 DOI:10.1039/DT9950002417

The isolation from diethyl ether of ionic [(Me2N)3PI]I and [(CH2CHCH2)2PhPI]I, and the crystallographically characterised molecular spoke structure PhMe2PI2 Neil Bricklebank, Stephen M. Godfrey, Helen P. Lane, Charles A. McAuliffe, Robin G. Pritchard and Jose-Maria Moreno, pp 2421 DOI:10.1039/DT9950002421

Syntheses and structures of a four-co-ordinate monomeric dialkylaluminium complex and a cyclic trimeric alkylaluminium propeller complex with a bidentate amide ligand, Al(PhNCH2CH2NH2)Me2 and [Al(µ-PhNCH2CH2NH)Me]3 Steven J. Trepanier and Suning Wang, pp 2425 DOI:10.1039/DT9950002425

Polyamine synthesis and co-ordination: structural characterisation of cobalt(III) complexes from an octadentate ligand preparation Jack M. Harrowfield, Yang Kim, Mauro Mocerino, Brian W. Skelton and Allan H. White, pp 2431 DOI:10.1039/DT9950002431

Activation of (C-H) bonds in ferrocenyl- and bis(ferrocenyl)-imines promoted by palladium Ramón Bosque, Concepción López, Joaquim Sales, David Tramuns and Xavier Solans, pp 2445 DOI:10.1039/DT9950002445

Synthesis and structures of cyclopentadienyl fluoro and chloro complexes of a triad (Ti, Zr, Hf) containing acyclic and cyclic siloxane building blocks Feng-Quan Liu, Isabel Usón and Herbert W. Roesky, pp 2453 DOI:10.1039/DT9950002453

Mononuclear cis-dioxovanadium(V) anionic complexes [VO2L]-{H2L =[1 + 1] Schiff base derived from salicylaldehyde (or substituted derivatives) and 2-amino-2-methylpropan-l-ol}: synthesis, structure, spectroscopy, electrochemistry and reactivity studies Gebray Asgedom, Alavattam Sreedhara, Jussi Kivikoski, Jussi Valkonen and Chebrolu P. Rao, pp 2459 DOI:10.1039/DT9950002459

Dalton communications. Conformational control in PtS2(PR2)2N metallacycles via ligand-substituent effects (R = Ph or OPh) Julian R. Phillips, Alexandra M. Z. Slawin, Andrew J. P. White, David J. Williams and J. Derek Woolins, pp 2467 DOI:10.1039/DT9950002467

Structure of a C,N,N-cyclometallated palladium(II) complex of 2-amino-4-phenylamino-6-(2-pyridyl)-1,3,5-triazine, and -diimine ligand with donor-acceptor-donor hydrogen-bonding capability Chin-Wing Chan, D. Michael P. Mingos, Andrew J. P. White and David J. Williams, pp 2469 DOI:10.1039/DT9950002469

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viii

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX059

Issue 15

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX061

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP101

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000000v

Kinetics of reduction of hexakis(acetamide)- and hexakis(dimethylacetamide)-iron(III) by tris(3,4,5,6,7,8-hexamethyl-1,10-phenanthroline)iron(II) in acetonitrile Eva Vallazza and Roland Schmid, pp 2473 DOI:10.1039/DT9950002473

Protonation of trans-[Mo(2-MeCCH)2(Ph2PCH2CH2PPh2)2]: mechanism of formation of trans-[MoX(CHCHMe)(Ph2PCH2CH2PPh2)2](X = Cl or Br) or trans-[MoF(CCH2Me)(Ph2PCH2CH2PPh2)2] Richard A. Henderson, Kay E. Oglieve and Philip Salisbury, pp 2479 DOI:10.1039/DT9950002479

Preparation and characterisation of [Pt{N(SePPh2)2-Se,Se}(PR3)2]Cl (R = alkyl or aryl); crystal structure of [Pd{Ph2PNP(Se)Ph2-P,Se}{N(SePPh2)2-Se,Se}]·0.5EtOH·0.3CH2Cl2 Pravat Bhattacharyya, Alexandra M. Z. Slawin, David J. Williams and J. Derek Woollins, pp 2489 DOI:10.1039/DT9950002489

Reactivity of [ RuIII(edta)(H2O)]- with nucleic bases, nucleosides and DNA (calf-thymus) in aqueous solution (etda = ethylenediamine-N,N,N,N-tetraacetate) Debabrata Chatterjee, Hari C. Bajaj and Amitava Das, pp 2497 DOI:10.1039/DT9950002497

Stereochemical factors affecting second-sphere co-ordination of ferrioxamine B with cis-syn-cis and cis-anti-cis isomers of dicyclohexano-18-crown-6 in chloroform and a comparison with alkali-metal and ammonium cations Ines Batini-Haberle, Ivan Spasojevi, Richard A. Bartsch and Alvin L. Crumbliss, pp 2503 DOI:10.1039/DT9950002503

Synthesis and characterisation of the mixed-sandwich complex closo-[3-(-C5Me5)Fe-4-Me2S-1,2-C2B9H10] and its charge-transfer salts; crystal structure of [Fe(-C5Me5)-(C2B9H10SMe2)]+[ddq]-·CH2Cl2(ddq = 2,3-dichloro-5,6-dicyano-p-benzoquinone) Yaw-Kai Yan, D. Michael P. Mingos, Thomas E. Müller, David J. Williams and Mohamedally Kurmoo, pp 2509 DOI:10.1039/DT9950002509

Determination of the local environment of the metals in [CrIII2CoIIO(MeCO2)6(py)3]·py (py = pyridine) by chromium and cobalt K-edge extended X-ray absorption fine structure. Geometric and charge-polarisation influences on Cr-O-Cr superexchange A. Bryan Edwards, John M. Charnock, C. David Garner and Antony B. Blake, pp 2515 DOI:10.1039/DT9950002515

Reduced polyoxomolybdates with the Keggin and Dawson structures: preparation and crystal structures of two-electron reduced [K(18-crown-6)]2[N(PPh3)2]2[HPMo12O40]·8MeCN·18-crown-6 and four-electron reduced [NBun4]5[H3S2Mo18O62]·4MeCn (18-crown-6 = 1,4,7,10,13,16-hexaoxacyclooctadecane) Ralf Neier, Christa Trojanowski and Rainer Mattes, pp 2521 DOI:10.1039/DT9950002521

Insertion of internal acetylenes into orthopalladated -methylbenzylamine. Crystal structure of [Pd{C(Ph)C(Ph)C(Ph)C(Ph)C6H4CH(Me)NH2}Br] José Vicente, Isabel Saura-Llamas and M. Carmen Ramírez de Arellano, pp 2529 DOI:10.1039/DT9950002529

The first orthopalladation of a primary nitrobenzylamine. Synthesis of chiral cyclopalladated complexes derived from (S)--methyl-4-nitrobenzylamine José Vicente, Isabel Saura-Llamas, Michael G. Palin and Peter G. Jones, pp 2535 DOI:10.1039/DT9950002535

Metal-directed syntheses of dithiadiazacyclotetradecane macrocycles with pendant alcohol and nitro or carboxylate groups involving macrocycle ring expansion Gang Wei, Christine C. Allen, Trevor W. Hambley, Geoffrey A. Lawrance and Marcel Maeder, pp 2541 DOI:10.1039/DT9950002541

Octahedral non-helical bis(bipyridyl) metallomacrocycles Alexander Bilyk, Margaret M. Harding, Peter Turner and Trevor W. Hambley, pp 2549 DOI:10.1039/DT9950002549

An extended X-ray absorption fine structure (EXAFS) study of mixed molybdenum-tungsten M3 clusters in Zn2Mo3-xWxO8(x= 1, 1.5 or 2) Simon J. Hibble and Ian D. Fawcett, pp 2555 DOI:10.1039/DT9950002555

Reaction of [Fe2(CN)10]4- with L-ascorbic acid Floyd A. Beckford, Tara P. Dasgupta and Geoffrey Stedman, pp 2561 DOI:10.1039/DT9950002561

Siderophore analogues. Synthesis and chelating properties of a new macrocyclic trishydroxamate ligand M. Alexandra Esteves, M. Cândida T. Vaz, M. L. S. Simões Gonçalves, Etelka Farkas and M. Amélia Santos, pp 2565 DOI:10.1039/DT9950002565

Dalton communication. Synthesis and crystal structure of {[Au2(dien)2]2+}n(dien = diethylenetriamine), an infinite linear polymer based on weak gold-gold contacts John Yau, D. Michael P. Mingos, Stephan Menzer and David J. Williams, pp 2575 DOI:10.1039/DT9950002575

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX063

Issue 16

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX065

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP105

Synthesis, structural characterisation and Raman spectroscopy of the inorganic pigments lead tin yellow types I and II and lead antimonate yellow: their identification on medieval paintings and manuscripts Robin J. H. Clark, Lucas Cridland, Benson M. Kariuki, Kenneth D. M. Harris and Robert Withnall, pp 2577 DOI:10.1039/DT9950002577

Cleavage of an aryl carbon-sulfur bond in hydride-thiolate complexes of molybdenum and tungsten. Crystal structures of [{Mo(SC6H2Pri3-2,4,6)(OMe)(PMePh2)}2(µ-S)2] and [{Mo(SC6H2Pri3-2,4,6)(OEt)(PEtPh2)}2(µ-S)2] Timothy E. Burrow, David L. Hughes, Alan J. Lough, Michael J. Maguire, Robert H. Morris and Raymond L. Richards, pp 2583 DOI:10.1039/DT9950002583

Synthesis, characterisation and crystal structure of molybdenum and molybdenum-copper hydroxy-rich Schiff-base complexes Athanassios N. Papadopoulos, Catherine P. Raptopoulou, Aris Terzis, Antonis G. Hatzidimitriou, Andre Gourdon and Dimitris P. Kessissoglou, pp 2591 DOI:10.1039/DT9950002591

Dinuclear CuIIMII(M = Co, Ni, Cu or Zn) and CuIICuI complexes of a phenol-based dinucleating macrocycle with dissimilar N2O2 and N2O2S sites Shin-ichiro Ohtsuka, Masahito Kodera, Ken-ichiro Motoda, Masaaki Ohba and Hisashi kawa, pp 2599 DOI:10.1039/DT9950002599

Complexing properties of phosphonodipeptides containing aminomethylphosphonic acid Petr Hermann and Ivan Luke, pp 2605 DOI:10.1039/DT9950002605

Complexing properties of phosphonodipeptides containing 1-aminoethylphosphonic acid Petr Hermann, Ivan Luke, Pavel Vojtíek and Ivana Císaová, pp 2611 DOI:10.1039/DT9950002611

Mononuclear manganese(III) complexes of a heterodonor (N2OS) ligand containing thiolate-type sulfur: synthesis, structure, redox and spectroscopic properties Sujit Baran Kumar, Sudeep Bhattacharyya, Subodh Kanti Dutta, Edward R. T. Tiekink and Muktimoy Chaudhury, pp 2619 DOI:10.1039/DT9950002619

An unusual dimerization of 6-amino-2-thiouracilate in a cobalt(III) complex Kazuaki Yamanari, Makiko Kida, Masahiro Yamamoto, Takashi Fujihara, Akira Fuyuhiro and Sumio Kaizaki, pp 2627 DOI:10.1039/DT9950002627

Intramolecular hydrogen-bond formation in nickel(II) complexes with macrocyclic ligands containing non-co-ordinating nitrogen atom(s): new ditopic receptors differentiating hydrogensulfate and hydrogenphosphates Lyudmila V. Tsymbal, Sergey V. Rosokha and Yaroslaw D. Lampeka, pp 2633 DOI:10.1039/DT9950002633

Unexpected gold-containing boride clusters formed from the reactions of [RhRu3H(5-C5Me5)(CO)9BH]- with gold(I) phosphine derivatives: crystal structures of [RhRu3H(5-C5Me5)(CO)9B{Au(PPh3)}2(AuCl)]·CH2Cl2 and [RhRu3H(5-C5Me5)(CO)9B{Au2(dppf)}(AuCl)]·CH2Cl2[dppf = 1,1-bis(diphenylphosphino)ferrocene] Jane R. Galsworthy, Catherine E. Housecroft and Arnold L. Rheingold, pp 2639 DOI:10.1039/DT9950002639

Structure and magnetism of novel tetranuclear µ4-oxo-bridged copper(II) complexes Jörg Reim, Klaus Griesar, Wolfgang Haase and Bernt Krebs, pp 2649 DOI:10.1039/DT9950002649

Co-ordination of copper(II) with monoamino-triols and -tetrols. Effect of stereochemistry on complex formation Malgorzata Jezowska-Bojczuk, Henryk Kozowski, Sophie Lamotte, Patrick Decock, Andrzej Temeriusz, Ignacy Zajczkowski and Janusz Stepiski, pp 2657 DOI:10.1039/DT9950002657

Di- and linear tri-nuclear carbonyl ruthenium clusters containing asymmetrically bridging 2,7-disubstituted naphthyridines Markus Mintert and William S. Sheldrick, pp 2663 DOI:10.1039/DT9950002663

Building two-dimensional silver(I) co-ordination polymers with dicarboxylate-like ligands: synthesis and crystal structures of polymeric complexes of silver nitrate and perchlorate with flexible double betaines De-Dong Wu and Thomas C. W. Mak, pp 2671 DOI:10.1039/DT9950002671

New organolanthanide complexes containing a -bonded 1,3-dithiane. Crystal structures of [M(C5H4But)2(C4H7S2-1,3)]·LiCl·2thf (M = Lu or Y; thf = tetrahydrofuran) Sergei A. Vinogradov, Alexander E. Mistrukov and Irina P. Beletskaya, pp 2679 DOI:10.1039/DT9950002679

Thermodynamic and electrochemical studies of lanthanide and alkaline-earth-metal cryptates in dimethyl sulfoxide Alberto Cassol, Plinio Di Bernardo, Giuseppe Pilloni, Marilena Tolazzi and Pier Luigi Zanonato, pp 2689 DOI:10.1039/DT9950002689

Complexation of thorium(IV) with 2-thenoic and 2-furoic acids in aqueous solution at low pH Jan G. H. du Preez and Gerhard F. Swiegers, pp 2697 DOI:10.1039/DT9950002697

Reactions of dichlorobis(2,3-dimethylbutane-2,3-diolato)-tungsten(VI) with water and alcohols Ari Lehtonen and Reijo Sillanpää, pp 2701 DOI:10.1039/DT9950002701

Application of deuteriation to determine the location of the emitting state in mixed-ligand RuII polypyridyl complexes Tia E. Keyes, Frances Weldon, Edgar Müller, Peter Pechy, Michael Grätzel and Johannes G. Vos, pp 2705 DOI:10.1039/DT9950002705

Ligand transfer from a tris(imino)stannate anion; syntheses and structures of [{Cu[µ-NC(But)Ph]}4]·thf(thf = tetrahydrofuran) and [{Cu[µ- NC(But)Ph]}4(PPh3)2]·6thf Maxwell K. Davies, Paul R. Raithby, Moira-Ann Rennie, Alexander Steiner and Dominic S. Wright, pp 2707 DOI:10.1039/DT9950002707

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viij

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX067

Issue 17

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX069

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP111

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9950000ixd

Excited-state properties of [(OC)5W(L)W(CO)5][L = 4,4-bipyridyl (4,4-bipy) or pyrazine] and [(OC)5W(4,4-bipy)] Michael W. George, Frank P. A. Johnson, James J. Turner and Jeremy R. Westwell, pp 2711 DOI:10.1039/DT9950002711

Single-crystal and high-resolution X-ray diffraction studies and Raman spectrum of a phosphorus(V) chloride complex containing a single bromide ion, P3Cl14Br Peter N. Gates, Howard C. Knachel, Arthur Finch, Albert V. Fratini, Andrew N. Fitch, Ottavio Nardone, James C. Otto and Daniel A. Snider, pp 2719 DOI:10.1039/DT9950002719

High-temperature Mössbauer studies on 119Sn-enriched caesium tin(II) chlorides and bromides Stephen J. Clark and John D. Donaldson, pp 2723 DOI:10.1039/DT9950002723

N-p-Amino- and N-p-nitro-phenylsulfonyl derivatives of dipeptides, a new family of ligands for copper(II). Potentiometric and spectroscopic studies Teresa Kowalik-Jankowska, Henryk Kozowski, Krzysztof Pawelczak and Maciej Makowski, pp 2729 DOI:10.1039/DT9950002729

Synthesis and structural characterisation of some new triosmium alkylidyne clusters containing sulfur-donor ligands. The formation of C-S and C-C bonds Wai-Yeung Wong and Wing-Tak Wong, pp 2735 DOI:10.1039/DT9950002735

Synthesis and characterisation of two clusters [Ru8(µ-H)2(µ6-2-CO)(CO)19(6-C16H16)] and [Ru8(µ6-2-CO)(µ4-2-CO)(CO)18(6-C16H16)] having an unusual metal geometry and considerable elongation of the µ6-C-O bond Caroline M. Martin, Paul J. Dyson, Scott L. Ingham, Brian F. G. Johnson and Alexander J. Blake, pp 2741 DOI:10.1039/DT9950002741

C4-ring ligand-transfer reactions: applications to cluster chemistry. Crystal structures of [Ru5C(CO)13(-C4Ph4)] and [Ru6C(CO)15(-C4Ph4)] Paul J. Dyson, Scott L. Ingham, Brian F. G. Johnson, John E. McGrady, D. Michael P. Mingos and Alexander J. Blake, pp 2749 DOI:10.1039/DT9950002749

Synthesis and structural studies of new ruthenium cluster carbonyl derivatives from (PhP)5 and [Ru3(CO)12] and [Ru3(CO)10(NCMe)2] How-Ghee Ang, Lip-Lin Koh and Qi Zhang, pp 2757 DOI:10.1039/DT9950002757

Chemical behaviour of the mixed-metal carbonyl clusters [Fe2Rh(CO)10]- and [Fe2Rh2(CO)12]2-. Crystal structures of [Fe2Rh(CO)9(PPh3)]- and [Fe2Rh2(µ-CO)3(CO)9{µ3-Au(PPh3)}]- Roberto Della Pergola, Lucia Fracchia, Luigi Garlaschelli, Mario Manassero and Mirella Sansoni, pp 2763 DOI:10.1039/DT9950002763

Redox-responsive bi- and tri-nuclear iron/molybdenum complexes incorporating the ferrocenyl unit as a redox spectator Mohan M. Bhadbhade, Amitava Das, John C. Jeffery, Jon A. McCleverty, Jon A. Navas Badiola and Michael D. Ward, pp 2769 DOI:10.1039/DT9950002769

Synthesis, spectroscopy and electrochemistry of rhenium(V) imido complexes of pyridine and a comparative study with oxo and nitrido analogues; crystal structure of [Rev(NMe)(py)3(OEt)Cl]ClO4(py = pyridine) Vivian Wing-Wah Yam, Kwok-Kwong Tam and Kung-Kai Cheung, pp 2779 DOI:10.1039/DT9950002779

Molecular structures of cyclic mono- and di-(phosphoranylidene)aminophosphazenes: small-molecule models for high polymers Harry R. Allcock, Susan E. Kuharcik, Karyn B. Visscher and Dennis C. Ngo, pp 2785 DOI:10.1039/DT9950002785

Crystal structure, nuclear magnetic resonance spectroscopy and individual gauge for localised orbitals (IGLO) calculations of C6H4P2S6, a new tetrathiadiphosphorinane, and comparison with related P-S compounds Gisbert Grossmann, Haiko Beckmann, Otto Rademacher, Kerstin Krüger and Gisela Ohms, pp 2797 DOI:10.1039/DT9950002797

Synthesis and characterisation of homo- and hetero-trinuclear complexes containing the triply-bridging diphenylthiophosphinito [µ3-SPPh2]- ligand: molecular structure of [Pd3(µ3-SPPh2)2(C6F5)2(C6H4CH2NMe2-2)(PPh3)2]ClO4·0.8CH2Cl2 Juan Forniés, Francisco Martinez, Rafael Navarro, Esteban P. Urriolabeitia and Alan J. Welch, pp 2805 DOI:10.1039/DT9950002805

Synthesis of phosphinochalcogenoic amidato complexes of zinc and cadmium. The crystal and molecular structure of [Zn{But2P(Se)NPri}2] Manfred Bochmann, Gabriel C. Bwembya, Michael B. Hursthouse and Simon J. Coles, pp 2813 DOI:10.1039/DT9950002813

Preparation and crystal structure of the deficient perovskite LaNiO2.5, solved from neutron powder diffraction data José Antonio Alonso and María Jesús Martínez-Lope, pp 2819 DOI:10.1039/DT9950002819

Synthesis, structure and oxygen-evolving activity of dinuclear manganese complexes with a Schiff-base macrocyclic ligand and bridging benzoate Toshi Nagata and Junji Mizukami, pp 2825 DOI:10.1039/DT9950002825

Triosmium alkylidyne clusters containing monophosphine and chiral diphosphine ligands. Crystal and molecular structures of [Os3(µ-H)2(CO)9(µ3-CPBunPh2)] and (R)-[Os3(µ-H)2(CO)8{µ3-CPPh2CH(Me)CH2PPh2}] Wai-Yeung Wong and Wing-Tak Wong, pp 2831 DOI:10.1039/DT9950002831

Solvent-dependent 2H nuclear magnetic resonance spectra and solvatochromism in ligand-field absorption bands of cis-[CrF2N4]-type complexes with triethylenetetramine, pyridine or 2,2-bipyridine Yukiko Terasaki and Sumio Kaizaki, pp 2837 DOI:10.1039/DT9950002837

Kinetics of the formation, reactivity and crystal structure of the sulfite-bridged cation di-µ-hydroxo-µ-(sulfito-O,O)-bis[(1,4,7-triazacyclononane)chromium(III)] Paul T. Maragh, Tara P. Dasgupta and David J. Williams, pp 2843 DOI:10.1039/DT9950002843

Synthesis, structure and physical properties of tetrathiafulvalenium salts of the ferracarborane complex commo-[3,3-Fe{1-(C4H3S)-1,2-C2B9H10}2]- Yaw-Kai Yan, D. Michael P. Mingos, Mohamedally Kurmoo, Wan-Sheung Li, Ian J. Scowen, Mary McPartlin, A. Treeve Coomber and Richard H. Friend, pp 2851 DOI:10.1039/DT9950002851

Rhodium complexes with 1,8-diazabicyclo[5.4.0]undec-7-ene (dbu): crystal structure of trans-[Rh(CO)(dbu)(PPh3)2]ClO4 James V. Barkley, Craig J. Davies, Brian T. Heaton and Chacko Jacob, pp 2861 DOI:10.1039/DT9950002861

Synthesis and characterization of gold(III) adducts and cyclometallated derivatives with 2-substituted pyridines. Crystal structure of [Au{NC5H4(CMe2C6H4)-2}Cl2] Maria Agostina Cinellu, Antonio Zucca, Sergio Stoccoro, Giovanni Minghetti, Mario Manassero and Mirella Sansoni, pp 2865 DOI:10.1039/DT9950002865

Vinylidene complexes of the molybdenum auxiliary Mo(Ph2PCH2CH2PPh2)(C7H7). Structural and spectroscopic investigations on vinylidene ligand orientation Roy L. Beddoes, Caroline Bitcon, Richard W. Grime, Allen Ricalton and Mark W. Whiteley, pp 2873 DOI:10.1039/DT9950002873

Pulse-radiolysis study of the reaction of nitric oxide with superoxide Kazuo Kobayashi, Miyako Miki and Seiichi Tagawa, pp 2885 DOI:10.1039/DT9950002885

Molybdotungstovanadates [V2MonW(4-n)O19]4- Jeremy J. Hastings and Oliver W. Howarth, pp 2891 DOI:10.1039/DT9950002891

Structural investigations of the organoantimony(V) halides Ph4SbX and Ph3SbX2(X = Cl, Br or I) in the solid state and in solution Lisa-Jane Baker, Clifton E. F. Rickard and Michael J. Taylor, pp 2895 DOI:10.1039/DT9950002895

Four-membered chelate rings in complexes with 2,2-bis(diphenylphosphino)propane. Crystal and molecular structures of trans-[RuCl2{Me2C(PPh2)2}2], [RuCl{Me2C(PPh2)2}(-C5H5)] and [(-C5H5)Ru(µ-CO)2-{µ-Me2C(PPh2)2}RhCl2](Rh-Ru) James V. Barkley, Julia C. Grimshaw, Simon J. Higgins, Paul B. Hoare, Mark K. McCart and Anthony K. Smith, pp 2901 DOI:10.1039/DT9950002901

Histamine H2 antagonists: powerful ligands for copper(II). Reinterpretation of the famotidine-copper(II) system Anna M. Duda, Teresa Kowalik-Jankowska, Henryk Kozowski and Teobald Kupka, pp 2909 DOI:10.1039/DT9950002909

Dalton communications. Cyclooctadienyl complexes of molybdenum: synthesis and 53 hapticity interconversion Roy L. Beddoes, Dale M. Spencer and Mark W. Whiteley, pp 2915 DOI:10.1039/DT9950002915

The gold-germanium bond in co-ordination compounds of the type (Ph3P)nAuGeCl3 with n= 1, 2 or 3 Andreas Bauer, Annette Schier and Hubert Schmidbaur, pp 2919 DOI:10.1039/DT9950002919

A reversible intramolecular hydrogen-bonding interaction involving second-sphere co-ordination of a water ligand David A. Bardwell, John C. Jeffery, Peter L. Jones, Jon A. McCleverty and Michael D. Ward, pp 2921 DOI:10.1039/DT9950002921

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX071

Issue 18

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX073

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP119

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9950000ixe

Dalton perspectives. The generation and reactivity of versatile ruthenium carbonyl organometallic intermediates by cluster photochemistry Nicholas E. Leadbeater, pp 2923 DOI:10.1039/DT9950002923

A spiked-butterfly cluster: crystal and electronic structures of [RhRu4H(5-C5Me5)(CO)13BH2] Jane R. Galsworthy, Catherine E. Housecroft, Andrew J. Edwards and Paul R. Raithby, pp 2935 DOI:10.1039/DT9950002935

Reactions of cis-[Os(CO)4Me2] and cis-[Re(CO)4(PPh3)Me] with anhydrous HF and HOTeF5; compatibiltiy of phosphine, alkyl and OTeF5- ligands in low-valent transition-metal complexes Stuart A. Brewer, Lesley A. Buggey, John H. Holloway and Eric G. Hope, pp 2941 DOI:10.1039/DT9950002941

Synthesis and characterisation of iridium carbonyl fluorides Stuart A. Brewer, Alan K. Brisdon, John H. Holloway, Eric G. Hope, Lee A. Peck and Paul G. Watson, pp 2945 DOI:10.1039/DT9950002945

Pentafluorophenylplatinum complexes containing 1- or 2-aryl-Pt interactions. Crystal structure of cis-[Pt(C6F5)2-({NC5H4[CH(2-Ph)Ph]-2}-N)]·0.5C6H5Me José M. Casas, Juan Forniés, Antonio Martín, Babil Menjón and Milagros Tomás, pp 2949 DOI:10.1039/DT9950002949

Synthesis, characterization and crystal structures of some half-sandwich ruthenium(II) complexes of 1,4,7-trimethyl-1,4,7-triazacyclononane containing -acidic ancillary ligands San-Ming Yang, Wing-Chi Cheng, Shie-Ming Peng, Kung-Kai Cheung and Chi-Ming Che, pp 2955 DOI:10.1039/DT9950002955

Synthesis, properties and crystal structures of iron-(II) and -(III) complexes of 2,2:6,2:6,2-quaterpyridine Chi-Ming Che, Chin-Wing Chan, San-Ming Yang, Chun-Xiao Guo, Chung-Yuan Lee and Shie-Ming Peng, pp 2961 DOI:10.1039/DT9950002961

Metal-oxo photooxidants. Crystal structure, spectroscopy and photophysical properties of neutral luminescent trans-dioxoosmium(VI) complexes with cyanide and mesityl ligands Kwok-Fai Chin, Yuk-Ki Cheng, Kung-Kai Cheung, Chun-Xiao Guo and Chi-Ming Che, pp 2967 DOI:10.1039/DT9950002967

Synthesis and structural characterization of platinum(II) bis(chelate) complexes derived from the ligand system meso/rac-Ph(O)HPCH2CH2PH(O)Ph John Powell, Michael J. Horvath and Alan Lough, pp 2975 DOI:10.1039/DT9950002975

Synthetic, spectroscopic and structural studies on uranium and thorium complexes of diphosphazane dioxides Kasani Aparna, Setharampattu S. Krishnamurthy and Munirathinam Nethaji, pp 2991 DOI:10.1039/DT9950002991

Group 6 metallocene(IV)-main group metal complexes: synthesis and structures of a Mo-B-Li compound and of [W(-C5H5)2H{SnCl2CH(SiMe3)2}] Rakesh Bohra, Peter B. Hitchcock, Michael F. Lappert, Steve C. F. Au-Yeung and Wing-Por Leung, pp 2999 DOI:10.1039/DT9950002999

Synthesis, crystal structure and electrospray mass spectrometric study of the rhodium(III) dioxolene complex [Rh{OCC(CO2Et)SC(CO2Et)CO}(5-C5Me5)(PPh3)] William Henderson, John Fawcett, Raymond D. W. Kemmitt and David R. Russell, pp 3007 DOI:10.1039/DT9950003007

Structure of Ba3In2O5F2 by combined powder X-ray and neutron diffraction analysis; oxide/fluoride ordering in a Ruddlesden-Popper phase Richard L. Needs and Mark T. Weller, pp 3015 DOI:10.1039/DT9950003015

Synthesis of cationic uranium compounds by protonolysis of amide precursors: amide and chloroamide complexes Jean-Claude Berthet, Christophe Boisson, Monique Lance, Julien Vigner, Martine Nierlich and Michel Ephritikhine, pp 3019 DOI:10.1039/DT9950003019

Synthesis of cationic uranium compounds by protonolysis of amide precursors: cyclopentadienyl and cyclooctatetraene complexes Jean-Claude Berthet, Christophe Boisson, Monique Lance, Julien Vigner, Martine Nierlich and Michel Ephritikhine, pp 3027 DOI:10.1039/DT9950003027

Cobalt(III) complexes with thiosemicarbazones as co-ordinating agents. Spontaneous resolution by crystallization and absolute configuration Marisa Belicchi Ferrari, Giovanna Gasparri Fava, Giorgio Pelosi, Maria C. Rodriguez-Argüelles and Pieralberto Tarasconi, pp 3035 DOI:10.1039/DT9950003035

Synthesis and characterization of organoimido- and organoamido-rhenium(V) complexes. Crystal structures of [ReCl2(NC6H4PPh2-2)(HNC6H4PPh2-2)], [Re(8-HNC9H6N)2O(PPh3)][BPh4] and [Re(NPh)(NC5H3S-2-SiMe3-3)2(PPh3)][BPh4] Mustafa T. Ahmet, Brian Coutinho, Jonathan R. Dilworth, John R. Miller, Suzanne J. Parrott, Yifan Zheng, Mary Harman, Michael B. Hursthouse and Abdul Malik, pp 3041 DOI:10.1039/DT9950003041

Phosphorus-carbon bond formation in heterobimetallic molybdenum-tungsten alkyne complexes Gillian A. Acum, Martin J. Mays, Paul R. Raithby and Gregory A. Solan, pp 3049 DOI:10.1039/DT9950003049

Structural and spectroscopic characterization of a dicyanooxomolybdenum(IV) complex with a tetradentate schiff-base ligand Janusz Szklarzewicz, Alina Samotus, John Burgess, John Fawcett and David R. Russell, pp 3057 DOI:10.1039/DT9950003057

Structural and vibrational spectroscopic studies of complexes of trimethylphosphine with copper(I) and silver(I) halides Graham A. Bowmaker, Robert D. Hart, Brian E. Jones, Brian W. Skelton and Allan H. White, pp 3063 DOI:10.1039/DT9950003063

Co-ordination chemistry of mixed pyridine-phenol ligands: polynuclear complexes of 6-(2-hydroxyphenyl)-2,2-bipyridine with NiII, CdII, MnII and MnIIMnIII David A. Bardwell, John C. Jeffery and Michael D. Ward, pp 3071 DOI:10.1039/DT9950003071

Thermodynamics of formation of 1,4,7,10,13,16-hexaoxacyclooctadecane (18-crown-6) complexes with calcium, strontium and barium ions in water and dimethylformamide Kazuhiko Ozutsumi, Kazuo Kohyama, Kumiko Ohtsu and Takuji Kawashima, pp 3081 DOI:10.1039/DT9950003081

Dalton communications. Synthesis and crystal structure of [RuCl2(PPh3){N(SiMe3)C(Ph)NH(PPh2)}] Wai-Kwok Wong, Tao Jiang and Wing-Tak Wong, pp 3087 DOI:10.1039/DT9950003087

Structural characterisation of solution species implicated in the rhodium-catalysed carbonylation of methanol by Rh K-edge X-ray absorption spectroscopy Neil A. Cruise and John Evans, pp 3089 DOI:10.1039/DT9950003089

The first ligand-assisted stereoselective Wittig reactions. Synthesis and crystal structure of the 3-palladaindan-1-one, [Pd{C6H[C(O)CH2]-6-(OMe)3-2,3,4}(Me2NCH2CH2NMe2)] José Vicente, José-Antonio Abad, Ralph Bergs, Peter G. Jones and Delia Bautista, pp 3093 DOI:10.1039/DT9950003093

Facile synthetic route to cone-shaped phosphorylated [CH2P(O)Ph2] calix[4]arenes Cedric Dieleman, Cyrille Loeber, Dominique Matt, André De Cian and Jean Fischer, pp 3097 DOI:10.1039/DT9950003097

Additions and corrections Sujit Mondal, Somnath Dutta and Animesh Chakravorty, pp 3101 DOI:10.1039/DT9950003101

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX075

Issue 19

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX077

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP127

Is hydrazoic acid (HN3) an intermediate in the destruction of hydrazine by excess nitrous acid? Anne M. M. Doherty, Kevin R. Howes, Geoffrey Stedman and Memdoh Q. Naji, pp 3103 DOI:10.1039/DT9950003103

Kinetics and mechanism of the oxidation of thiosulfate ion by hexachloroiridate(IV) Bharti Goyal, Sangeeta Solanki, Sumati Arora, Aditya Prakash and Raj N. Mehrotra, pp 3109 DOI:10.1039/DT9950003109

Synthesis and crystal structure of a salt containing the trans-diphenyldi-µ-seleno-diselenodistannate(2-) anion Sandrine Sportouch, Monique Tillard-Charbonnel and Claude Belin, pp 3113 DOI:10.1039/DT9950003113

Synthesis and co-ordination chemistry of a novel bis(benzo crown ether) substituted calix[4]arene that can simultaneously complex cations and anions Paul D. Beer, Michael G. B. Drew, Rachel J. Knubley and Mark I. Ogden, pp 3117 DOI:10.1039/DT9950003117

Synthesis and characterisation of cationic bis(cyclopentadienyl)tungsten(IV) complexes containing alkyl, chloride and hydride ligands Adrian J. Carmichael and Andrew McCamley, pp 3125 DOI:10.1039/DT9950003125

The crystal structures of [NMe4]2[(PhPO3){MoO(O2)2}2-{MoO(O2)2(H2O)}] and [NBun4]2[W4O6(O2)6(OH2)(H2O)2] and their use as catalytic oxidants William P. Griffith, Bernardeta C. Parkin, Andrew J. P. White and David J. Williams, pp 3131 DOI:10.1039/DT9950003131

The occurrence of both amide and thiolate forms of the benzoxazole-2-thionate anion (C7H4ONS-) in the same molecule: synthesis and crystal structure of C7H4ONSNa[µ-OP(NMe2)3]3NaC7H4ONS F. Adele Banbury, Matthew G. Davidson, Paul R. Raithby, Dietmar Stalke and Ronald Snaith, pp 3139 DOI:10.1039/DT9950003139

Synthesis of complexes of ReV, RuII, OsII, RhI, IrI and IrIII. Crystal and molecular structures of [ReO(OH)(SC6H4 SiPh3-2)2(PPh3)], [ReH4(SC6H4SiPh3-2)(PPh3)3] and [IrH(SC6H4SiPh3-2)2(PMePh2)3] Mustafa T. Ahmet, Canzhong Lu, Jonathan R. Dilworth, John R. Miller, Yifan Zheng, David E. Hibbs, Michael B. Hursthouse and K. M. Abdul Malik, pp 3143 DOI:10.1039/DT9950003143

Syntheses and structures of [Re(SC6H3Me2-2,6)3(PPh3)], [Re(SC6H3Me2-2,6)3(ButNC)2], [Re(SC6H2Pri3-2,4,6)3L(PPh3)](L = N2 or CO) and [ReH4(PPh3)4][ReO(SC6H2Pri3-2,4,6)4] Jonathan R. Dilworth, Jin Hu, John R. Miller, David L. Hughes, Jon A. Zubieta and Qin Chen, pp 3153 DOI:10.1039/DT9950003153

Dynamic nuclear magnetic resonance study of the effects of cis-chelate ligands on 1,2-metallotropic shifts in trimethylplatinum(IV) complexes of pyridazine Edward W. Abel, Peter J. Heard, Keith G. Orrell, Michael B. Hursthouse and K. M. Abdul Malik, pp 3165 DOI:10.1039/DT9950003165

Studies of the reaction system [ScCl3(thf)3]-SbCl5-L (thf = tetrahydrofuran, L = 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane): unexpected formation and crystal structure of [H2L]Cl2·ScCl3(H2O)3·3H2O Gerald R. Willey, Paul R. Meehan, Martin D. Rudd and Michael G. B. Drew, pp 3173 DOI:10.1039/DT9950003173

Synthesis and structures of bis[bis(trimethylsilyl)amido]-tin(IV) cyclic chalcogenides [{Sn[N(SiMe3)2]2(µ-E)}2] and a heterobimetallic analogue [{(Me3Si)2N}2Ge(µ-Te)2Sn-{N(SiMe3)2}2](E = S, Se or Te) Peter B. Hitchcock, Eunseok Jang and Michael F. Lappert, pp 3179 DOI:10.1039/DT9950003179

Monoxidised sulfur and selenium derivatives of bis(diphenyl-phosphino)amine: synthesis and co-ordination chemistry Pravat Bhattacharyya, Alexandra M. Z. Slawin, David J. Williams and J. Derek Woollins, pp 3189 DOI:10.1039/DT9950003189

Topologically different infinite co-ordination structures of [CdNi(CN)4]·2H2N(CH2)nNH2·mH2O complexes (n= 2-7 and 9, m= 0-2) caused by the catenation behaviour of the diamine and the -NC-Ni(CN)2-CN-moieties Hidetaka Yuge, Atsushi Mamada, Miki Asai, Shin-ichi Nishikiori and Toschitake Iwamoto, pp 3195 DOI:10.1039/DT9950003195

Syntheses, crystal structures and electronic properties of [Cu(bipym)(C4O4)(H2O)3]·2H2O and [Cu2(bipym)(C4O4)2(H2O)6](bipym = 2,2-bipyrimidine) Isabel Castro, Jorunn Sletten, Lisbeth K. Glærum, Juan Cano, Francesc Lloret, Juan Faus and Miguel Julve, pp 3207 DOI:10.1039/DT9950003207

Synthesis and structural characterization of crown thioether complexes of silver(I) and copper(II) Megumu Munakata, Liang Ping Wu, Mikiko Yamamoto, Takayoshi Kuroda-Sowa and Masahiko Maekawa, pp 3215 DOI:10.1039/DT9950003215

Synthesis, structures and physical properties of bis(ethylenedithio)tetrathiafulvalenium salts of paramagnetic metallacarborane anions Yaw-Kai Yan, D. Michael P. Mingos, David J. Williams and Mohamedally Kurmoo, pp 3221 DOI:10.1039/DT9950003221

Synthesis, structure and reactivity of bicycloheptatrienyl-bridged dimolybdenum complexes: crystal structure of [Mo2(CO)4(µ-I)(µ-7 : 7-C14H12)][PF6] Roy L. Beddoes, E. Stephen Davies and Mark W. Whiteley, pp 3231 DOI:10.1039/DT9950003231

Molybdenum(I) mononitrosyl complexes: syntheses, electrochemistry, electron paramagnetic resonance spectra and magnetism of complexes with N6 and N5I first-co-ordination spheres and the crystal structures of [Mo-{HB(dmpz)3}(NO)(NC5H4Ph-4)2]I and [Mo{HB(dmpz)3}(NO)-(NC9H7)2]BPh4(dmpz = 3,5-dimethylpyrazol-1-yl) Ferida S. McQuillan, Terry L. Green, Thomas A. Hamor, Christopher J. Jones, John P. Maher and Jon A. McCleverty, pp 3243 DOI:10.1039/DT9950003243

Dalton communications. Reaction of a side-on co-ordinated carbene ligand with the Wittig reagent Andrew J. Edwards, Jochem U. Köhler, Jack Lewis and Paul R. Raithby, pp 3251 DOI:10.1039/DT9950003251

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viik

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX079

Issue 20

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX081

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP133

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9950000ixf

Metallosupramolecules bearing pendant redox-active domains: synthesis and co-ordination behaviour of the metallocene-functionalized helicand 4,4?-di(ferrocenyl)-2,2:6,2:6,2:6,2?:6?,2?-sexipyridine Edwin C. Constable, Andrew J. Edwards, Ramón Martínez-Máñez and Paul R. Raithby, pp 3253 DOI:10.1039/DT9950003253

Synthesis and crystal structure of an encapsulated fragment of MoO2 in the unique Mo8 oxo-cluster compound [Mo8O8Cl6(µ3-O)4(OH)2(µ-OH)4(µ-OEt)4(HOEt)4] and its relevance to the sol-gel synthesis of molybdenum oxides Alexander J. Blake, Anthony J. Downs, Christian Limberg and Simon Parsons, pp 3263 DOI:10.1039/DT9950003263

One-step template synthesis and solution structures of bis(macrocyclic) octaamine dicopper(II) complexes Peter Comba and Peter Hilfenhaus, pp 3269 DOI:10.1039/DT9950003269

Cytosine nucleobase as a tridentate ligand: metal binding to N(3), N(4) and O(2) in trans-[(NH2Me)2Pt(dmcyt)2Ag2][NO3]2(dmcyt = 1,5-dimethylcytosinate) Dagmar Holthenrich, Michael Krumm, Ennio Zangrando, Fabio Pichierri, Lucio Randaccio and Bernhard Lippert, pp 3275 DOI:10.1039/DT9950003275

Determination of active-site conformations in paramagnetic myoglobin from analyses of cross-relaxation and hyperfine shifts Yasuhiko Yamamoto, pp 3281 DOI:10.1039/DT9950003281

Molecular structure and crystal organization of neutral and ionic derivatives of [M4(CO)12](M = Co, Rh or Ir) clusters and a bonding study by extended-Hückel calculations Dario Braga, Fabrizia Grepioni, Janice J. Byrne and Maria José Calhorda, pp 3287 DOI:10.1039/DT9950003287

Molecular structure and crystal structure generation for [Fe3(CO)12] Dario Braga, Fabrizia Grepioni, Emilio Tedesco, Maria José Calhorda and Pedro E. M. Lopes, pp 3297 DOI:10.1039/DT9950003297

Synthesis and characterisation of guaiazulene derivatives of two ruthenium carbonyl clusters Brian F. G. Johnson, Douglas S. Shephard, Andrew J. Edwards, Dario Braga, Emilio Parisini and Paul R. Raithby, pp 3307 DOI:10.1039/DT9950003307

Four-versus five-co-ordinate bis(imido) alkene complexes of molybdenum: the contrasting effects of tert-butyl- and 2,6-diisopropylphenyl-imido substituents Philip W. Dyer, Vernon C. Gibson and William Clegg, pp 3313 DOI:10.1039/DT9950003313

Mechanistic studies on the cis-[VO2(H2O)4]+ and [Mo(CN)8]3- oxidations of the ReIV2 complex [(C2O4)2Re(µ-O)2Re(C2O4)2]4- J. William Atkinson, Mao-Chun Hong, Donald A. House, Panayotis Kyritsis, Yu-Jin Li, Mohamed Nasreldin and A. Geoffrey Sykes, pp 3317 DOI:10.1039/DT9950003317

Reactions of peroxy acids with deuteroferrihaem D. Martin Davies and Nicholas D. Gillitt, pp 3323 DOI:10.1039/DT9950003323

Oxo- and imido-molybdenum(VI) and -tungsten(VI) functionalities supported by diacetoneglucose Umberto Piarulli, David N. Williams, Carlo Floriani, Giuliana Gervasio and Davide Viterbo, pp 3329 DOI:10.1039/DT9950003329

Synthesis, spectroscopic properties and crystal structures of [ML2Cl2][M = Th or U; L =-C5H3(SiMe3)2-1,3] and [UL2X2](X = Br, I or BH4) Paul C. Blake, Michael F. Lappert, Richard G. Taylor, Jerry L. Atwood, William E. Hunter and Hongming Zhang, pp 3335 DOI:10.1039/DT9950003335

Copper(I), silver(I) and gold(I) complexes with the hybrid ligand 1-(diphenylphosphino)-2-(2-pyridyl)ethane (ppye). Variable-temperature nuclear magnetic resonance investigations and the crystal structure of [Au(ppye-P)2]PF6 Alessandro Del Zotto, Giorgio Nardin and Pierluigi Rigo, pp 3343 DOI:10.1039/DT9950003343

Complexation properties of 1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-7-malonate, -7,16-bis(malonate) and -7,16-bis(-methylacetate) Ern Brücher, Béla Gyri, József Emri, Sándor Jakab, Zoltán Kovács, Piroska Solymosi and Imre Tóth, pp 3353 DOI:10.1039/DT9950003353

Reaction of alkali-metal tetraphenylborates with amines in the presence of CO2: a new easy way to aliphatic and aromatic alkali-metal carbamates Michele Aresta, Angela Dibenedetto and Eugenio Quaranta, pp 3359 DOI:10.1039/DT9950003359

Preparation and characterization of the first binary arsenic azide species: As(N3)3 and [As(N3)4][AsF6] Thomas M. Klapötke and Petra Geissler, pp 3365 DOI:10.1039/DT9950003365

Synthesis, spectroscopic and structural characterisation of periodate complexes of iron(III) Eric M. Jones, William Levason, Richard D. Oldroyd, Michael Webster, Michael Thomas and John Hutchings, pp 3367 DOI:10.1039/DT9950003367

Controlled design of oligomeric ethers with pendant cyclopentadienyliron moieties Alaa S. Abd-El-Aziz, Christine R. de Denus, Michael J. Zaworotko and Leonard R. MacGillivray, pp 3375 DOI:10.1039/DT9950003375

Type 1 blue copper protein amicyanin from Thiobacillus versutus: line-broadening effects of chromium(III) complexes and related studies Christopher Dennison, Panayotis Kyritsis, Arnout P. Kalverda, Gerard W. Canters, William McFarlane and A. Geoffrey Sykes, pp 3395 DOI:10.1039/DT9950003395

Diphosphinoamido complexes of thorium(IV) and uranium-(IV) and -(V). Crystal structures of [{ThCl2[N(CH2CH2PPri2)2]2}2] and [{UCl2[N(CH2CH2PEt2)2]2}2] Simon J. Coles, Andreas A. Danopoulos, Peter G. Edwards, Michael B. Hursthouse and Paul W. Read, pp 3401 DOI:10.1039/DT9950003401

Synthesis, electrochemistry and reactivity of formato- and acetato-niobocene complexes Antonio Antiñolo, Mariano Fajardo, Santiago García-Yuste, Isabel Del Hierro, Antonio Otero, Soumia Elkrami, Youssef Mourad and Yves Mugnier, pp 3409 DOI:10.1039/DT9950003409

Pyridyl to amido and amido to pyridyl isomerisation in an isonicotinamide complex of ruthenium(III) Debabrata Chatterjee and Hari C. Bajaj, pp 3415 DOI:10.1039/DT9950003415

Macrocyclic dimer-of-dimers type tetranuclear copper(II) complexes with two bridging hydroxy groups in a face-to-face manner Ken-ichiro Motoda, Hiroshi Sakiyama, Naohide Matsumoto, Hisashi kawa and David E. Fenton, pp 3419 DOI:10.1039/DT9950003419

Dalton communications. Rapid characterisation of rhodium dihydrides by nuclear magnetic resonance spectroscopy using indirect two-dimensional methods and para-hydrogen Simon B. Duckett, Graham K. Barlow, Martin G. Partridge and Barbara A. Messerle, pp 3427 DOI:10.1039/DT9950003427

Synthesis and crystallographic characterisation of [Ru7C(CO)16(C9H8)] and [Ru7C(CO)16(C12H12)]: facial bonding and bonding from the same ring system Alexander J. Blake, Paul J. Dyson, Petra E. Gaede, Brian F. G. Johnson, Dario Braga and Emilio Parisini, pp 3431 DOI:10.1039/DT9950003431

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX083

Issue 21

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX085

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP141

Equilibria and thermodynamic quantities for the reactions of molybdenum(VI) and tungsten(VI) with mandelate (-hydroxybenzeneacetate) Johannes J. Cruywagen and Elisabeth A. Rohwer, pp 3433 DOI:10.1039/DT9950003433

Homoleptic silver(I) complexes with dithio-, diseleno- and ditelluro-ethers: synthesis, structures and multinuclear nuclear magnetic resonance studies Jane R. Black, Neil R. Champness, William Levason and Gillian Reid, pp 3439 DOI:10.1039/DT9950003439

Synthesis, structure and anion co-ordination chemistry of a novel macrocyclic cobaltocenium receptor Paul D. Beer, Michael G. B. Drew, Jana Hodacova and Sally E. Stokes, pp 3447 DOI:10.1039/DT9950003447

Lanthanide picrate complexes and picric acid adduct of a calix[4]arene diamide. Syntheses and structures of [Tm(LH-2)A], [Ce(LH-2)(MeOH)2A]·HA, [PrLA3] and L·2HA {L = 5,11,17,23-tetra-tert-butyl-25,27-bis(diethylcarbamoylmethoxy)-26,28-dihydroxycalix[4]arene, HA = picric acid} Paul D. Beer, Michael G. B. Drew, Alan Grieve and Mark I. Ogden, pp 3455 DOI:10.1039/DT9950003455

Hydrogen bonding in imidazolium salts and its implications for ambient-temperature halogenoaluminate(III) ionic liquids Ahmed Elaiwi, Peter B. Hitchcock, Kenneth R. Seddon, Narmatha Srinivasan, Yu-May Tan, Thomas Welton and Jalal A. Zora, pp 3467 DOI:10.1039/DT9950003467

A facile, high-yield synthesis of [Pt2(PR3)2(µ-Cl)2Cl2] Neil M. Boag and Megan S. Ravetz, pp 3473 DOI:10.1039/DT9950003473

Syntheses and characterization of amino and amido-imido technetium(V) and rhenium(V) complexes with (o-aminophenyl)diphenylphosphine-N,P. Crystal structures of [TcNCl{PPh2(C6H4NH2-2)}2]Cl·MeCN and [Re{PPh2(C6H4N-2)}Cl2{PPh2(C6H4NH-2}] Fiorenzo Refosco, Francesco Tisato, Annarosa Moresco and Giuliano Bandoli, pp 3475 DOI:10.1039/DT9950003475

Ligand-field stabilization energies of the first-row transition-metal dihalides and their bearing on the Irving-Williams rule David A. Johnson and Peter G. Nelson, pp 3483 DOI:10.1039/DT9950003483

Palladium-catalysed formation of aroylcobalt complexes from iodoarene and tetracarbonylcobaltate anion. Syntheses, characterization and reactivities of model intermediate complexes Yoshihiko Misumi, Youichi Ishii and Masanobu Hidai, pp 3489 DOI:10.1039/DT9950003489

Perfluoroalkyl- and perfluoroaryl-amidato derivatives of ruthenium, osmium and iridium Stephen D. Robinson, Arvind Sahajpal and Derek A. Tocher, pp 3497 DOI:10.1039/DT9950003497

Synthesis, properties and molecular structures of iron(III), cobalt(II), nickel(II), copper(II), copper(I) and zinc(II) complexes with N,N-bis(pyrazol-1-ylmethyl)benzylamine Shiann-Cherng Sheu, Mong-Jong Tien, Ming-Chun Cheng, Tong-Ing Ho, Shie-Ming Peng and Yuan-Chuan Lin, pp 3503 DOI:10.1039/DT9950003503

Nuclear magnetic resonance studies of 4-hydroxypiperidinomethylphosphonic acid and its polyoxomolybdate conjugates Mark P. Lowe and Joyce C. Lockhart, pp 3511 DOI:10.1039/DT9950003511

Synthesis and structure of small-molecule phosphazene rings bearing fused-ring aryloxy side groups: models for optically useful high polymers Harry R. Allcock, Saman Al-Shali, Dennis C. Ngo, Karyn B. Visscher and Masood Parvez, pp 3521 DOI:10.1039/DT9950003521

Mixed-valence dinuclear iron complexes with a nonadentate polypyridine ligand: high-spin iron(II)-low-spin iron(III) Yonezo Maeda, Kota Kawano and Takayuki Oniki, pp 3533 DOI:10.1039/DT9950003533

Oxo complexes of ruthenium with N,N-donors as oxidation catalysts for alkenes, alkanes and alcohols, and their osmium analogues Alan J. Bailey, William P. Griffith and Paul D. Savage, pp 3537 DOI:10.1039/DT9950003537

Perylene salts with tetrahalogenoferrate(III) anions. Synthesis, crystal structure of [(C20H12)3][FeCl4] and characterisation Joséa A. Ayllón, Isabel C. Santos, Rui T. Henriques, Manuel Almeida, Elsa B. Lopes, Jorge Morgado, Luís Alcácer, Luís F. Veiros and M. Teresa Duarte, pp 3543 DOI:10.1039/DT9950003543

Chelating ether-phosphine complexes of the cobalt group metals. Crystal structures of bis[benzylbis(2-ethoxyethyl)-phosphine]-bis(trifluoromethanesulfonato)cobalt(II) and -trichlororhodium(III) Steven J. Chadwell, Simon J. Coles, Peter G. Edwards and Michael B. Hursthouse, pp 3551 DOI:10.1039/DT9950003551

Dalton communications. Synthesis and reactivity of tungsten vinylallene complexes Ding-Jen Chen, Pei-Chen Ting, Ying-Chih Lin, Gene-Hsiang Lee and Yu Wang, pp 3561 DOI:10.1039/DT9950003561

1,1-Bis(diphenylthiophosphoryl)ferrocene as a trans- chelating ligand in gold(I) and silver(I) complexes M. Concepción Gimeno, Peter G. Jones, Antonio Laguna and Cristina Sarroca, pp 3563 DOI:10.1039/DT9950003563

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viil

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX087

Back matter J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BP147

Issue 22

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX089

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP149

Preparation and crystal structures of the silver(I) carboxylates [Ag2{C6H4(CO2)2}(NH3)2], [NH4][Ag5{C6H3(CO2)3}2(NH3)2(H2O)2]·H2O and [NH4][Ag{C4H2N2(CO2)2}] Graham Smith, Adi N. Reddy, Karl A. Byriel and Colin H. L. Kennard, pp 3565 DOI:10.1039/DT9950003565

Hypodentate ligands: systematic approaches to complexes containing didentate 2,2:6,2-terpyridine (terpy) and the crystal and molecular structures of [Ru(bipy-N,N)2(terpy-N,N)][PF6]2 and [Ru(bipy-N,N)2(bterpy-N,N)][PF6]2(bipy = 2,2-bipyridine, bterpy = 6-bromo-2,2:6,2-terpyridine) Rohit Chotalia, Edwin C. Constable, Michael J. Hannon and Derek A. Tocher, pp 3571 DOI:10.1039/DT9950003571

Complex-formation reactions of dichloro(L-methioninato)-palladium,(II) with inosine and inosine 5- monophosphate. Labilization induced by the S-donor chelate Frans F. Prinsloo, Jacobus J. Pienaar and Rudi van Eldik, pp 3581 DOI:10.1039/DT9950003581

Reaction of pentaammineaquarhodium(III) with carbonate in strongly basic solution: a multiple choice of potential interactions Edu Cloete, Ernst Breet and Rudi van Eldik, pp 3591 DOI:10.1039/DT9950003591

Hydrolysis of the zinc(II) ion in sodium nitrate, chloride and perchlorate medium: the effect of the anionic medium Nikola B. Mili and Ratomir M. Jeli, pp 3597 DOI:10.1039/DT9950003597

Dinuclear ruthenium(II) and/or osmium(II) complexes of a non-symmetric bis-chelating quaterpyridine ligand. Synthesis, electrochemical behaviour, absorption spectra, luminescence properties and intercomponent energy transfer Vincenzo Balzani, David A. Bardwell, Francesco Barigelletti, Rosemary L. Cleary, Massimo Guardigli, John C. Jeffery, Tiziana Sovrani and Michael D. Ward, pp 3601 DOI:10.1039/DT9950003601

Synthesis, crystal structures and spectroscopic properties of cis- and trans-[RhCl2L2]+[L = 1,3-bis(dimethylphosphino)propane or 1,2-bis(dimethylphosphino)ethane (dmpe)]: reinvestigation of the dmpe complexes Takayoshi Suzuki, Kiyoshi Isobe and Kazuo Kashiwabara, pp 3609 DOI:10.1039/DT9950003609

First-row transition-metal complexes of corroles: synthesis and characterization of oxotitanium(IV) and oxovanadium(IV) complexes of -alkylcorroles Silvia Licoccia, Roberto Paolesse, Emanuela Tassoni, Francesca Polizio and Tristano Boschi, pp 3617 DOI:10.1039/DT9950003617

Kinetics of oxidation of antimony(III) by vanadium(V) in aqueous hydrochloric acid media Prakash L. Timmanagoudar, Gouri A. Hiremath and Sharanappa T. Nandibewoor, pp 3623 DOI:10.1039/DT9950003623

Kinetics and mechanism of complex formation of some bivalent and trivalent metal ions with pentaammine-(nitrilotriacetato)cobalt(III) in aqueous medium Rita Das, Nigamananda Das and Anadi C. Dash, pp 3627 DOI:10.1039/DT9950003627

µ-Pyrazolato-µ-carboxylato- and di(µ-pyrazolato)dimanganese(II) complexes: synthesis, characterization and catalase-like function Makoto Itoh, Ken-ichiro Motoda, Kenji Shindo, Toshiro Kamiusuki, Hiroshi Sakiyama, Naohide Matsumoto and Hisashi kawa, pp 3635 DOI:10.1039/DT9950003635

Co-ordination of nitriles to [Fe(CN)5(OH2)]3- and use of the acetonitrile complex for the determination of equilibrium constants Paul R. Norris and John M. Pratt, pp 3643 DOI:10.1039/DT9950003643

Co-ordination of amines to [Fe(CN)5(OH2)]3- Paul R. Norris and John M. Pratt, pp 3651 DOI:10.1039/DT9950003651

Synthesis and co-ordination chemistry of the pyridyl pendant-arm azamacrocycles 1-(2-pyridylmethyl)-1,5,9-triazacyclododecane L1 and 1-(2-pyridyl-2-ethyl)-1,5,9-triazacyclododecane L2, with nickel (II), copper(II) and zinc(II). Crystal structures of [Ni(L1)(O2NO)]NO3 and [ZnL2][Zn(NO3)3.67Cl0.33] Mary L. Turonek, Peter Moore, Howard J. Clase and Nathaniel W. Alcock, pp 3659 DOI:10.1039/DT9950003659

Iron(II) complexes of polydentate aminopyridyl ligands and an exchangeable sixth ligand; reactions with peroxides. Crystal structure of [FeL1(H2O)][PF6]2·H2O [L1=N,N-bis-(6-methyl-2-pyridylmethyl)-N,N-bis(2-pyridylmethyl)ethane-1,2-diamine] Ivan Bernal, Inge Margrethe Jensen, Kenneth B. Jensen, Christine J. McKenzie, Hans Toftlund and Jean-Pierre Tuchagues, pp 3667 DOI:10.1039/DT9950003667

Spectroelectrochemistry and excited-state absorption spectroscopy of rhenium(I),-diimine complexes Yoke Foo Lee, Jon R. Kirchhoff, Robert M. Berger and David Gosztola, pp 3677 DOI:10.1039/DT9950003677

Synthesis, structure and solid-state nuclear magnetic resonance studies of P-chiral (dicyclohexylaminosulfanyl)-[(-)-p-menthan-3-yloxy]phenylthioxophosphorane Marek J. Potrzebowski, Jana Vereshchagina, Jan Michalski, Micha W. Wieczorek and Wiesaw Majzner, pp 3683 DOI:10.1039/DT9950003683

Studies of [Ag(PPh3)2]NO3, [Ag{P(CH2CH2CN)3}2]NO3 and [Ag{P(C6H4Me-m)3}2]NO3 by X-ray diffraction and solid-state nuclear magnetic resonance C. W. Liu, Hongjun Pan, John P. Fackler jun. , Gang Wu, Roderick E. Wasylishen and Maoyu Shang, pp 3691 DOI:10.1039/DT9950003691

Chemical and theoretical comparison between phosphido (X = PR2) and thiolato (X = SR) bent niobocenes of the type [Nb(cp)2L(X)][L = CO or P(OMe)3, cp =-C5H5]. Structure of [Nb(cp)2(CO)(µ-SEt){Fe(CO)4}] Marek M. Kubicki, Pascal Oudet, Christine Martin and Christophe Barré, pp 3699 DOI:10.1039/DT9950003699

Structure of the copper(II) complex of a highly preorganised tetradentate ligand based on bispidine (3,7-diazabicyclo[3.3.1]nonane) Gladys D. Hosken, Christine C. Allan, Jan C. A. Boeyens and Robert D. Hancock, pp 3705 DOI:10.1039/DT9950003705

Complexes of Rh(C5Me5) with picolinic acid, pyrones and pyridinones Andrew P. Abbott, Glen Capper, David L. Davies, John Fawcett and David R. Russell, pp 3709 DOI:10.1039/DT9950003709

Silica-mimetic polymorphism of the Cd(CN)2 host lattice depending on the guest G in Cd(CN)2·xG clathrates Takafumi Kitazawa, Takao Kikuyama, Masuo Takeda and Toschitake Iwamoto, pp 3715 DOI:10.1039/DT9950003715

L-Methionine increases the rate of reaction of 5-guanosine monophosphate with the anticancer drug cisplatin: mixed-ligand adducts and reversible methionine binding Kevin J. Barnham, Milos I. Djuran, Piedad del Socorro Murdoch, John D. Ranford and Peter J. Sadler, pp 3721 DOI:10.1039/DT9950003721

Theoretical investigation of the electronic structures of the mixed-ring sandwich molecules [M(7-C7H7)(5-C5H5)](M = Ti, V, Nb or Ta) Nikolas Kaltsoyannis, pp 3727 DOI:10.1039/DT9950003727

Palladium(II) 2-diphenylphosphinohydroquinone (H2pphq) complexes: preparation and structures of a novel cluster, [{PdBr(Hpphq)}4]·2H2O, and a phosphine-phosphinite complex, cis-[PdBr2{C6H3(OH)-1,PPh2-3,PPh2O-4}]·2H2O Seri Bima Sembiring, Stephen B. Colbran, Donald. C. Craig and Marcia L. Scudder, pp 3731 DOI:10.1039/DT9950003731

Dalton communications. Exchange of organoimido groups at a mononuclear titanium centre and a crystallographic evaluation of the relative structural influences of the NBut, NC6H4Me-4 and NC6H4NO2-4 ligands Philip E. Collier, Simon C. Dunn, Philip Mountford, Oleg V. Shishkin and Daniel Swallow, pp 3743 DOI:10.1039/DT9950003743

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000viim

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX091

Issue 23

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX093

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP155

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9950000ixg

Synthesis and characterization of new dimeric aminoalanes Thomas Belgardt, Jens Storre, Andreas Klemp, Heinz Gornitzka, Ludger Häming, Hans-Georg Schmidt and Herbert W. Roesky, pp 3747 DOI:10.1039/DT9950003747

Thermal reactions of Mo(CO)6 on metal-oxide surfaces How-Ghee Ang, Kim-Seng Chan, Gaik-Khuau Chuah, Stephan Jaenicke and Sock-Kim Neo, pp 3753 DOI:10.1039/DT9950003753

Inhibitory effect of chloroquine on the peroxidase activity of ferriprotoporphyrin IX Maria C. de Almeida Ribeiro, Ohara Augusto and Ana M. da Costa Ferreira, pp 3759 DOI:10.1039/DT9950003759

Unusual hydrogen bonding patterns of N7 metallated, N1 deprotonated guanine nucleobases: acidity constants of cis-[Pt(NH3)2(Hegua)2]2+ and crystal structures of cis-[Pt(NH3)2(egua)2]·4H2O and cis-[Pt(NH3)2(egua)2]· Hegua·7H2O (Hegua = 9-ethylguanine) Guy Schröder, Bernhard Lippert, Michal Sabat, Colin J. L. Lock, Romulo Faggiani, Bin Song and Helmut Sigel, pp 3767 DOI:10.1039/DT9950003767

Synthesis, molecular structure (M = Pd, X = OH) and reactivity of trinuclear asymmetric complexes [(C6F5)2Pt(µ-PPh2)2M(µ-X)2Pt(PPh3)2](M = Pd or Pt; X = Cl or OH) Ester Alonso, Juan Forniés, Consuelo FortuñO and Milagros TomáS, pp 3777 DOI:10.1039/DT9950003777

Reaction chemistry of alkynes with the tris(acetonitrile)-ruthenium cluster [Ru3(CO)9(MeCN)3] Andrew J. Edwards, Nicholas E. Leadbeater, Jack Lewis and Paul R. Raithby, pp 3785 DOI:10.1039/DT9950003785

Mono- and di-dentate tertiary phosphine and monodentate tertiary phosphite derivatives of [Ru4H(CO)12BH2] Sylvia M. Draper, Catherine E. Housecroft, James S. Humphrey and Arnold L. Rheingold, pp 3789 DOI:10.1039/DT9950003789

Dinitrogen, butadiene and related complexes of molybdenum. Crystal structures of [Mo(N2)(PMe3)5] and [Mo(3-CH3CHCHCH2)(4-C4H6)(PEt3)2][BF4] Agustín Galindo, Enrique Gutiérrez, Angeles Monge, Margarita Paneque, Antonio Pastor, Pedro J. Pérez, Robin D. Rogers and Ernesto Carmona, pp 3801 DOI:10.1039/DT9950003801

Crystal structures and electron paramagnetic resonance spectra of [Cu{P(C5H4N)3}2]Br2·8H2O and Cu2+-doped [Zn{P(C5H4N)3}2]Br2·8H2O, examples of a dynamic Jahn-Teller effect in two dimensions Timothy Astley, Henrietta Headlam, Michael A. Hitchman, F. Richard Keene, John Pilbrow, Horst Stratemeier, Edward R. T. Tiekink and Y. C. Zhong, pp 3809 DOI:10.1039/DT9950003809

Effect of bulky alkyl substituents on the dynamics and stability of platinum complexes with -agostic bonding John L. Spencer and Gaspar S. Mhinzi, pp 3819 DOI:10.1039/DT9950003819

A novel reaction between physically separated solid reactants James E. Gareh, Marten G. Barker, Michael J. Begley and Andrei S. Batsanov, pp 3825 DOI:10.1039/DT9950003825

Macrocyclic CuII4 and CuII2MII complexes. Structure of a heterotrinuclear CuII2ZnII complex exhibiting a helical twist Kausik K. Nanda, Sasankasekhar Mohanta, Ulrich Flörke, Sujit K. Dutta and Kamalaksha Nag, pp 3831 DOI:10.1039/DT9950003831

Co-ordination chemistry of iodine(I) with tetraazamacrocycles or monodentate ligands. Comparisons with bromine(I) and with some d-block metals Wang Shi Hua, Sarah I. Ajiboye, Gordon Haining, Laurence McGhee, Robert D. Peacock, Gordon Peattie, Rana M. Siddique and John M. Winfield, pp 3837 DOI:10.1039/DT9950003837

Potentiometric and spectrophotometric study of the solution equilibria in the nickel(II)-diethanolamine-water system in aqueous sodium perchlorate solutions at 25 °C Aritz Lopategi, Rosario Castaño, Nestor Etxebarria and Juan M. Madariaga, pp 3843 DOI:10.1039/DT9950003843

1,5-Diaminopentanetriols and 1,6-diaminohexanetetrols, potent dimer-forming ligands for Cu2+ ions. Potentiometric and spectroscopic studies Malgorzata Jezowska-Bojczuk, Sophie Lamotte, Henryk Kozowski, Andrzej Temeriusz, Ignacy Zajczkowski, Janusz Stepiski and Patrick Decock, pp 3849 DOI:10.1039/DT9950003849

Nucleophilic displacement of halides from monocationic platinum(II) complexes containing neutral tridentate chelating ligands with sulfur and nitrogen donors: kinetics and equilibria Bruno Pitteri, Giampaolo Marangoni, Lucio Cattalini and Tatiana Bobbo, pp 3853 DOI:10.1039/DT9950003853

A general method of generating agostic interaction between RuII and C-H bonds of tert-butyl, methyl, aryl, heterocyclic or alkenyl groups using azine phosphines Sarath D. Perera and Bernard L. Shaw, pp 3861 DOI:10.1039/DT9950003861

Disproportionation of polynuclear chloroethylaluminate anions in acidic 1-butyl-3-methylimidazolium chloride-AlEtCl2 molten salts in the presence of a hydrocarbon phase Bernard Gilbert, Yves Chauvin, Helene Olivier and Françoise Di Marco-Van Tiggelen, pp 3867 DOI:10.1039/DT9950003867

Synthesis and structural characterisation of R3AsX2 compounds (R = Me, Ph, p-FC6H4 or p-MeOC6H4; X2= Br2, I2 or IBr); dependency of structure on R, X and the solvent of preparation Neil Bricklebank, Stephen M. Godfrey, Helen P. Lane, Charles A. Mcauliffe, Robin G. Pritchard and José-Maria Moreno, pp 3873 DOI:10.1039/DT9950003873

Synthesis, characterization and electronic structure of the novel stellated octahedral cluster [Co6(µ3-S)7(µ3-H)(PEt3)6]+. Crystal and molecular structure of [Co6(µ3-S)7(µ3-H)(PEt3)6]0.7[Co6(µ3-S)8(PEt3)6]0.3[BPh4] Franco Cecconi, Carlo A. Ghilardi, Stefano Midollini, Annabella Orlandini, Piero Zanello, Arnaldo Cinquantini, Alessandro Bencini, Myriam G. Uytterhoeven and Gianluca Giorgi, pp 3881 DOI:10.1039/DT9950003881

Potentiometric study of the molybdenum(VI)-benzilic acid system. Structural characterisation and electrochemical properties of [NH4]2[MoO2{O2CC(O)Ph2}2]·2H2O Antonio Cervilla, Elisa Llopis, Antonio Ribera, Antonio Doménech, Andrew J. P. White and David J. Williams, pp 3891 DOI:10.1039/DT9950003891

Polynuclear zinc(II) complexes of phenol-imine and -amine macrocycles Eiji Asato, Hideki Furutachi, Takako Kawahashi and Masahiro Mikuriya, pp 3897 DOI:10.1039/DT9950003897

Copper(II) bipyridyl and iminopyridyl analogoues of streptonigrin Georgina V. Long, Margaret M. Harding, Peter Turner and Trevor W. Hambley, pp 3905 DOI:10.1039/DT9950003905

Copper(II) Co-ordination by oxime analogues of amino acids and peptides Charles O. Onindo, Tatian Yu. Sliva, Teresa Kowalk-Jankowska, Igor O. Fritsky, Peter Buglyo, Leslie D. Petti, Henryk Kozowski and Tamas Kiss, pp 3911 DOI:10.1039/DT9950003911

Reactions of carbonylchlorogold(I) with thiolates and thiols. Crystal and molecular structures of [NaL(H2O)][(AuCl)3SBut], [NaL][AuCl2], [NaL]4[AuCl2]2[Au4Cl6S2] and [NaL]2[Au4Cl6S2](L = 1,4,7,10,13-pentaoxacyclopentadecane) Daniela Belli Dell'Amico, Fausto Calderazzo, Nicola Pasqualetti, Rainer Hübener, Cäcilia Maichle-Mössmer and Joachim Strähle, pp 3917 DOI:10.1039/DT9950003917

Synthesis and structures of dilithium (1,2-diphosphido)-benzenes Peter B. Hitchcock, Michael F. Lappert, Wing-Por Leung and Ping Yin, pp 3925 DOI:10.1039/DT9950003925

Synthesis and characterisation of ytterbium(II) alkyls Johannes R. van den Hende, Peter B. Hitchcock, Stephen A. Holmes, Michael F. Lappert and Shun Tian, pp 3933 DOI:10.1039/DT9950003933

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX095

Back matter J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BP163

Issue 24

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FX097

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500FP165

Carbon-hydrogen bond properties and alkyl group geometries in dichloro(5-cyclopentadienyl)-methyltitanium(IV) and dichloro(5-cyclopentadienyl)-ethyltitanium(IV)[TiR(5-C5H5)Cl2](R = Me or Et) A. H. Jean Robertson, Geoffery P. McQuillan and Donald C. McKean, pp 3941 DOI:10.1039/DT9950003941

Methyl group geometries, C-H bond properties and internal rotation in dicarbonyl(5-cyclopentadienyl)methyl-iron(II) and -ruthenium(II), [MMe(5-C5H5)(CO)2](M = Fe or Ru) A. H. Jean Robertson, Geoffrey P. McQuillan and Donald C. McKean, pp 3955 DOI:10.1039/DT9950003955

Partial deuteriation studies, ethyl-group geometries and C-H bond properties in [MEt(cp)(CO)2](M = Fe or Ru) and [MEt(cp)(CO)3](M = Mo or W)(cp =5-C5H5) A. H. Jean Robertson, Geoffrey P. McQuillan and Donald C. McKean, pp 3963 DOI:10.1039/DT9950003963

Deprotonation of 2(4e)-bonded alkynes as a pathway to ,2(3e)-prop-2-ynyl, 5-pentadienyl and 4-trans-1,3-diene substituted molybdenum complexes Carla Carfagna, Robert J. Deeth, Michael Green, Mary F. Mahon, Jacqueline M. Mclnnes, Sylvan Pellegrini and Christopher B. Woolhouse, pp 3975 DOI:10.1039/DT9950003975

Syntheses and structural characterization of a series of hydrido osmium-palladium carbonyl clusters: [Os5Pd(CO)16Hn+4(µ-Cl)2 -n](n= 0-2), [{Os3Pd(CO)9(µ-H)2(µ-Cl)}2(µ-Cl)2]·H2O and [Os4Pd(CO)11(µ-H)3(µ-Cl)3(C5H5N)]·0.5C6H14 Suzanna Chan and Wing-Tak Wong, pp 3987 DOI:10.1039/DT9950003987

Some remarkable reactions of the alkylidyne cluster [Os3(µ-H)2(CO)9(µ3-CNC5H4C5H4N)](NC5H4C5H4N = 4,4-bipyridine) with electrophiles. Crystal and molecular structures of the novel water-soluble dicationic cluster complex [Os3(µ-H)3(CO)9(µ3-CNC5H 4C5H4NH)][BF4]2·H2O Wai-Yeung Wong and Wing-Tak Wong, pp 3995 DOI:10.1039/DT9950003995

Synthesis, structure and magnetic properties of a singly carboxylate-bridged dinuclear manganese(II) complex Xiao-Ming Chen, Ye-Xiang Tong, Zhi-Tao Xu and Thomas C. W. Mak, pp 4001 DOI:10.1039/DT9950004001

New polynuclear manganese(II) complexes with orotic acid and some of its derivatives: crystal structures, spectroscopic and magnetic studies Françoise Nepveu, Nicolas Gaultier, Nikolaus Korber, Joel Jaud and Paule Castan, pp 4005 DOI:10.1039/DT9950004005

Dimanganese(II) complexes of a new phenol-based dinucleating ligand with two amino chelating arms: synthesis, structure and catalase-like activity Chikako Higuchi, Hiroshi Sakiyama, Hisashi kawa and David E. Fenton, pp 4015 DOI:10.1039/DT9950004015

Synthesis, solid-state and solution structures of bis{N,N-bis[(2-thienyl)methylene]-1,2-diaminoethane}-silver(I) and -copper(I) trifluoromethanesulfonate complexes Johan F. Modder, Ronald J. Leijen, Kees Vrieze, Wilberth J. J. Smeets, Anthony L. Spek and Gerard van Koten, pp 4021 DOI:10.1039/DT9950004021

Pentafluorophenylphosphine complexes of rhodium(I): extended X-ray absorption fine structure studies of [{Rh[PPhx(C6F5)3 -x]2(µ-CI)}n](x= 0-2) and [{Rh[(C6F5)2PCH2CH2P(C6F5)2](µ-CI)}2]. Crystal structures of [RhCl(PPh3){(C6F5)2PCH2CH2P(C6F5)2}]·C4H8O and (C6F5)2PCH2CH2P(C6F5)2 Malcolm J. Atherton, Karl S. Coleman, John Fawcett, John H. Holloway, Eric G. Hope, Atilla Karaçar, Lee A. Peck and Graham C. Saunders, pp 4029 DOI:10.1039/DT9950004029

Comparison of the reactivity of [2.2]paracyclophane and p-xylene Paul J. Dyson, David G. Humphrey, John E. McGrady, D. Michael P. Mingos and D. James Wilson, pp 4039 DOI:10.1039/DT9950004039

Synthesis and characterisation of palladium(II) complexes of mixed thioether/oxa ionophores. Crystal structures of [PdCl2([18]aneS2O4)], [Pd([18]aneS2O4)2][PF6]2([18]aneS2O4= 1,4,7,10-tetraoxa-13,16-dithiacyclooctadecane) and [Pd([18]aneS3O3)2][PF6]2([18]aneS3O3= 1,4,7-trioxa-10,13,16-trithiacyclooctadecane) Alexander J. Blake, Robert O. Gould, Christian Radek and Martin Schröder, pp 4045 DOI:10.1039/DT9950004045

Palladium(II)-induced preferential activation of the [Csp2(phenyl)-Cl] bond versus[Csp2(ferrocene)-H]. Crystal structure of [Fe(5-C5H5){5-C5H4CH2NCH(C6H3Cl2-2,6)}] Concepción López, Ramón Bosque, Xavier Solans, Mercè Font-Bardía, Jack Silver and George Fern, pp 4053 DOI:10.1039/DT9950004053

Synthesis and crystal structures of [C6H4SC(S)NNa·3P(NMe2)3O·NaN(S)CSC6H4] and [C6H4SC(S)NLi·pmdien](pmdien =N,N,N,N,N-pentamethyldiethylenetriamine): alkali-metal amides from 2-sulfanylbenzothiazole Philip C. Andrews, George A. Koutsantonis and Colin L. Raston, pp 4059 DOI:10.1039/DT9950004059

Rigid multinuclear arrays assembled around platinum centres Anthony Harriman, Muriel Hissler, Raymond Ziessel, André De Cian and Jean Fisher, pp 4067 DOI:10.1039/DT9950004067

Synthesis of methyl-palladium(II) and -platinum(II) complexes containing labile chelates and olefinic tertiary phosphine ligands: intramolecular insertion of an olefin into a palladium-carbon bond, and activation of a carbon-hydrogen bond by a platinum(II) complex Kingsley J. Cavell and Hong Jin, pp 4081 DOI:10.1039/DT9950004081

Triphosphorus macrocycle complexes of divalent Group 6 transition metals; crystal structure of bromotricarbonyl-[1,5,9-tris(isopropyl)-1,5,9-triphosphacyclododecane]-molybdenum(II) tetraphenylborate Simon J. Coles, Peter G. Edwards, James S. Fleming and Michael B. Hursthouse, pp 4091 DOI:10.1039/DT9950004091

Co-ordinative versatility of 3,5-bis(2-pyridyl)pyrazole in silver and copper compounds Megumu Munakata, Liang Ping Wu, Mikiko Yamamoto, Takayoshi Kuroda-Sowa, Masahiko Maekawa, Satoshi Kawata and Susumu Kitagawa, pp 4099 DOI:10.1039/DT9950004099

Outer-sphere redox reactions of [CoIII{N5}(HnPO4)]n+[{N5}=(NH3)5, (NH2Me)5 or 10-amino-10-methyl-1,4,8,12-tetraazacyclopentadecane] complexes. A temperature- and pressure-dependence kinetic study on the effects of the different {N5} groups Manuel Martinez and Mari-Angel Pitarque, pp 4107 DOI:10.1039/DT9950004107

Synthesis, structural characterisation and nuclear magnetic resonance study of [Ru6C(CO)15(µ3-1:2:2-C16H16-µ-O)]: an intermediate in the formation of [Ru6C(CO)14(µ3-2:2:2-C16H16)] Paul J. Dyson, Brian F. G. Johnson, Caroline M. Martin, David Reed, Dario Braga and Fabrizia Grepioni, pp 4113 DOI:10.1039/DT9950004113

The nature of the platinum-phosphine bond. An ab initio Hartree-Fock and density functional study Piercarlo Fantucci, Stefanin Polezzo, Maurizio Sironi and Alessandro Bencini, pp 4121 DOI:10.1039/DT9950004121

Dalton communications. Synthesis, structural characterisation and electrochemistry of the tetranuclear compound [{Pd2(µ-RNNNR)2}2(µ-Cl)4](R = C6H4Me-p): a precursor to triazenido-bridged palladium(II) complexes José V. Cuevas, Gabriel García-Herbosa, M. Asunción Muñoz, Stephen W. Hickman, A. Guy Orpen and Neil G. Connelly, pp 4127 DOI:10.1039/DT9950004127

Electron paramagnetic resonance spectroscopic characterization of {2,2-bis(hydroxymethyl)-2-[bis(2-hydroxy-ethyl)amino]ethanolato}oxochromate(V) Beshakeh S. Fonkeng, Edward Gelerinter and Rathindra N. Bose, pp 4129 DOI:10.1039/DT9950004129

Additions and corrections José Vicente, José-Antonio Abad, Ralph Bergs, Peter G. Jones and Delia Bautista, pp 4131 DOI:10.1039/DT9950004131

Names and symbols for the transfermium elements request for comments on IUPAC provisional recommendations J. Chem. Soc., Dalton Trans. DOI:10.1039/DT995000X099

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99500BX101