1992 year
Main Index

Issue 1

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX001

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP001

Instructions for authors (1992) J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200F00ix

Editorial Janet Dean, pp vii DOI:10.1039/DT99200F0vii

Refereeing procedure and policy (1992) J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200Fxxix

Study of dialkyltellurium radical cations by electron spin resonance spectroscopy Matthew J. Almond, Atiah Raqabah, David A. Rice, Martyn C. R. Symons and Carol A. Yates, pp 1 DOI:10.1039/DT9920000001

Organometallic precursors for the formation of GaN by metal-organic chemical vapour deposition: a study of [(CH3)2GaNH2]3 Matthew J. Almond, Michael G. B. Drew, Carolyn E. Jenkins and David A. Rice, pp 5 DOI:10.1039/DT9920000005

Divergent and convergent forms of a new Schiff-base cryptand; X-ray crystallographic and molecular mechanics investigations Michael G. B. Drew, Debbie Marrs, Josie Hunter and Jane Nelson, pp 11 DOI:10.1039/DT9920000011

Reactions of organic isocyanates and tert-butyl isocyanide with manganese(II) alkyls and trimesitylchromium Stefan U. Koschmieder, Geoffrey Wilkinson, Bilquis Hussain-Bates and Michael B. Hursthouse, pp 19 DOI:10.1039/DT9920000019

C-S Bond cleavage in reactions of thiolate nucleophiles with bridging thioethers in anionic ditungsten(III) complexes P. Michael Boorman, Xiaoliang Gao and Masood Parvez, pp 25 DOI:10.1039/DT9920000025

Synthesis and structure of a polyphosphine manganese(II) complex Franco Cecconi, Carlo A. Ghilardi, Stefano Midollini and Annabella Orlandini, pp 33 DOI:10.1039/DT9920000033

Mechanistic study of the transimination of bis(N-alkylsalicylaldiminato)nickel(II) with ammonium ion in acetonitrile Laura Carbonaro, Ambrogio Giacomelli, Mauro Isola and Lucio Senatore, pp 37 DOI:10.1039/DT9920000037

Mechanistic study of Schiff base release from bis(N-phenyl-salicylaldiminato)nickel(II) in acetonitrile Laura Carbonaro, Ambrogio Giacomelli, Mauro Isola and Lucio Senatore, pp 41 DOI:10.1039/DT9920000041

Synthesis, crystal structure and magnetic properties of di-µ-hydroxo-bis[(2,2-bipyridine)(trifluoromethanesulfonato-O)-copper(II)] Isabel Castro, Juan Faus, Miguel Julve, Claudette Bois, Jose Antonio Real and Francesc Lloret, pp 47 DOI:10.1039/DT9920000047

Synthesis and reactivity of hydroxo-bridged binuclear platinum complexes. Crystal structure of [NBu4]2[{Pt(C6F5)2(µ-OH)}2] Gregorio López, José Ruiz, Gabriel García, Consuelo Vicente, José M. Martí, Juan A. Hermoso, Angel Vegas and Martín Martínez-Ripoll, pp 53 DOI:10.1039/DT9920000053

Thiadiazatrimethylenemethane and N,N,P-triphenylphosphonothioic diamide complexes of platinum(II) William Henderson, Raymond D. W. Kemmitt, Simon Mason, Mark R. Moore, John Fawcett and David R. Russell, pp 59 DOI:10.1039/DT9920000059

Crystallographic and molecular mechanics study of a cobalt(III) complex of a structurally reinforced macrocycle Thembakazi N. Mali, Peter W. Wade and Robert D. Hancock, pp 67 DOI:10.1039/DT9920000067

Molecular motion in solids: Mössbauer spectra of [Fe(-C6H6)(-C5H5)][AsF6] Brian W. Fitzsimmons and William G. Marshall, pp 73 DOI:10.1039/DT9920000073

Tetranuclear ruthenium cluster catalysed transfer hydrogenation of ,-unsaturated aldehydes Sumit Bhaduri, Krishna Sharma and Doble Mukesh, pp 77 DOI:10.1039/DT9920000077

Trends in the spectral and redox potential data of mononuclear iron(III)(S=52) phenolate complexes Krishnamoorthi Ramesh and Rabindranath Mukherjee, pp 83 DOI:10.1039/DT9920000083

Osmium-(V), -(IV) and -(III) complexes with tetradentate dianionic chelating ligands Wing-Kin Cheng, Kwok-Yin Wong, Wai-Fong Tong, Ting-Fong Lai and Chi-Ming Che, pp 91 DOI:10.1039/DT9920000091

Synthesis, characterization and structure of the salicylate salt of [RuH(terpy)(PPh3)2]+(terpy = 2,2 : 6,2-terpyridine) Amitava Pramanik, Nilkamal Bag and Animesh Chakravorty, pp 97 DOI:10.1039/DT9920000097

Geometrical isomerism of bis(alkyl trithiocarbonato-S,S)bis-(triphenylphosphine) complexes of osmium-(II) and -(III) Amitava Pramanik, Nilkamal Bag, Goutam Kumar Lahiri and Animesh Chakravorty, pp 101 DOI:10.1039/DT9920000101

Binding of bi- and tri-valent nickel by azophenolates incorporating thioether/ether donor sites Suranjan Bhanja Choudhury, Debashis Ray and Animesh Chakravorty, pp 107 DOI:10.1039/DT9920000107

Chemistry of bis(o-benzosemiquinonato)bis(triphenylphosphine)ruthenium(II) complexes. Crystal and molecular structure of [Ru(O2C6Cl4)2(PPh3)2] Nilkamal Bag, Goutam Kumar Lahiri, Partha Basu and Animesh Chakravorty, pp 113 DOI:10.1039/DT9920000113

Substituted monocarbon carboranes involving thiol, disulfide or dimethyl sulfide ligands Shah-Alam Khan, John H. Morris, Mary Harman and Michael B. Hursthouse, pp 119 DOI:10.1039/DT9920000119

Unusual orthometallation of a tetraphenylcyclopentadienone ligand Harry Adams, Neil A. Bailey, Peter Blenkiron and Michael J. Morris, pp 127 DOI:10.1039/DT9920000127

Ring-methyl activation in pentamethylcyclopentadienyliridium complexes. Part 2. Synthesis of C5Me4(functionalized alkyl) complexes and crystal structures of [(C5Me4CH2CPh2OH)-IrMe(CO)Ph] and [(C5Me4CH2CO2H)IrMe(CO)Cl] Jesus A. Miguel-Garcia, Harry Adams, Neil A. Bailey and Peter M. Maitlis, pp 131 DOI:10.1039/DT9920000131

Metal LIII-edge extended X-ray absorption fine structure of 5d transition-metal hexafluorides and related fluoroanions Alan K. Brisdon, John H. Holloway, Eric G. Hope, William Levason, J. Steven Ogden and Ahmed K. Saad, pp 139 DOI:10.1039/DT9920000139

New thiosulfato complexes of osmium Catherine F. Edwards, William P. Griffith and David J. Williams, pp 145 DOI:10.1039/DT9920000145

Synthesis and crystal structure of a lanthanum complex with a diphenylphosphide ligand Helen C. Aspinall, Samantha R. Moore and Anthony K. Smith, pp 153 DOI:10.1039/DT9920000153

Multinuclear magnetic resonance investigation of the fluxionality of CH(SiMe3)2 groups in organolanthanide complexes Colin J. Schaverien and Geoffrey J. Nesbitt, pp 157 DOI:10.1039/DT9920000157

Aluminium carboxylates in aqueous solutions. Part 2. Metal speciation in the AlIII-lactate-OH--H2O system Benedetto Corain, Bruno Longato, Abdiqafar A. Sheikh-Osman, G. Giorgio Bombi and Carlo Maccà, pp 169 DOI:10.1039/DT9920000169

Displacement of ligands in [PtBr2(en)](en = ethylenediamine) by - and -mercaptoamines Mercè Capdevila, William Clegg, Pilar González-Duarte and Ignasi Mira, pp 173 DOI:10.1039/DT9920000173

Synthesis of technetium-99 nitrido complexes with chelating diphosphine and diimine ligands Colin M. Archer, Jonathan R. Dilworth, D. Vaughan Griffiths, Mary McPartlin and J. Duncan Kelly, pp 183 DOI:10.1039/DT9920000183

Additions and corrections Zofia Janas, Piotr Sobota and Tadeusz Lis, pp 191 DOI:10.1039/DT9920000191

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX003

Issue 2

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX005

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP007

Structural studies on organotransition-metal-bismuth complexes William Clegg, Neville A. Compton, R. John Errington, George A. Fisher, David C. R. Hockless, Nicholas C. Norman, Nicholas A. L. Williams, Susan E. Stratford, Stephen J. Nichols, Penelope S. Jarrett and A. Guy Orpen, pp 193 DOI:10.1039/DT9920000193

Crystal structures and extended X-ray absorption fine structure spectra of [Fe{O(CH2CO2)2}(H2O)2X](X = Cl or Br) Anne K. Powell, John M. Charnock, Annette C. Flood, C. David Garner, Michael J. Ware and William Clegg, pp 203 DOI:10.1039/DT9920000203

A 183W, 1H and 17O nuclear magnetic resonance study of aqueous isopolytungstates Jeremy J. Hastings and Oliver W. Howarth, pp 209 DOI:10.1039/DT9920000209

Complexes formed between zinc(II) and L-histidine: a carbon-13 nuclear magnetic resonance study Lorraine D. Couves, David N. Hague and Anthony D. Moreton, pp 217 DOI:10.1039/DT9920000217

Determination of metal-proton distances and electronic relaxation times in lanthanide complexes by nuclear magnetic resonance spectroscopy Silvio Aime, Luca Barbero, Mauro Botta and Giuseppe Ermondi, pp 225 DOI:10.1039/DT9920000225

Kinetic study of formation of [Co(H2PO4)(H2O)5]2+ at various acidities and ionic strengths Miguel Ferrer, Jordi Llorca and Manuel Martinez, pp 229 DOI:10.1039/DT9920000229

A 103Rh nuclear magnetic resonance study of rhodium(III) bromide complexes in aqueous solution Michael C. Read, Julius Glaser and Magnus Sandström, pp 233 DOI:10.1039/DT9920000233

Mono- and bi-nuclear complexes of rhodium with functionalised diphosphine ligands Mohammad F. M. Al-Dulaymmi, Adrian Hills, Peter B. Hitchcock, David L. Hughes and Raymond L. Richards, pp 241 DOI:10.1039/DT9920000241

Synthesis and molecular structures of new silylalkyne triosmium clusters Jack Lewis, Anju D. Massey, Magda Monari, Brian F. G. Johnson, Dario Braga and Fabrizia Grepioni, pp 249 DOI:10.1039/DT9920000249

Tetranuclear ruthenium clusters containing a pseudo-octahedral Ru4S2 framework and diaminocarbene ligands Ulf Bodensieck, Julio Santiago, Helen Stoeckli-Evans and Georg Süss-Fink, pp 255 DOI:10.1039/DT9920000255

Synthesis and characterisation of tetra- and penta-palladium clusters with sulfur dioxide as a ligand Andrew D. Burrows, D. Michael P. Mingos and Harry R. Powell, pp 261 DOI:10.1039/DT9920000261

Chemistry of molybdenum. Part 8. Syntheses, spectroscopy and electrochemical properties of molybdenum complexes containing dithioacid ligands Sujit Baran Kumar and Muktimoy Chaudhury, pp 269 DOI:10.1039/DT9920000269

Crystal structure of sodium tris(tetramethylammonium) pentamolybdodisulfate(VI) tetrahydrate, Na[NMe4]3S2Mo5O23·4H2O Toshitaka Hori, Sadayuki Himeno and Osamu Tamada, pp 275 DOI:10.1039/DT9920000275

On the geometrical and electronic structure of the hexahydroxochromate(III) anion Marc Hendrickx, Erik Berghmans, Arnout Ceulemans and Luc G. Vanquickenborne, pp 281 DOI:10.1039/DT9920000281

Novel diastereoisomers of ethylenediaminetetrapropionato-chromate(III). Part 1. Preparation and characterization Narumi Sakagami, Mariko Hayashi and Sumio Kaizaki, pp 285 DOI:10.1039/DT9920000285

Novel diastereoisomers of ethylenediaminetetrapropionato-chromate(III) Part 2. X-Ray structures of diaminetripropionato complexes Narumi Sakagami and Sumio Kaizaki, pp 291 DOI:10.1039/DT9920000291

Single-crystal Raman spectroscopy of the alums CsM(SO4)2· 12H2O (M = Co or Ir) between 275 and 1200 cm-1 Stephen P. Best, Robert S. Armstrong and James K. Beattie, pp 299 DOI:10.1039/DT9920000299

Crystal and molecular structure of a new µ-oxo-bridged iron(III) dimer formed with the nitrilotriacetate ligand Sarah L. Heath, Anne K. Powell, Helen L. Utting and Madeleine Helliwell, pp 305 DOI:10.1039/DT9920000305

Irreversible addition of carbon nucleophiles to ethylene in cationic platinum(II) complexes Francesco P. Fanizzi, Francesco P. Intini, Luciana Maresca and Giovanni Natile, pp 309 DOI:10.1039/DT9920000309

Template synthesis of copper(II)lead(II) complexes of new binucleating macrocycles with dissimilar co-ordination sites Makoto Tadokoro, Hiroshi Sakiyama, Naohide Matsumoto, Masahito Kodera, Hisashi kawa and Sigeo Kida, pp 313 DOI:10.1039/DT9920000313

Macrocyclic effect on anion binding. A potentiometric and electrochemical study of the interaction of 21- and 24- membered polyazaalkanes with [Fe(CN)6]4- and [Co(CN)6]3- Juan Aragó, Andrea Bencini, Antonio Bianchi, Antonio Domenech and Enrique García-España, pp 319 DOI:10.1039/DT9920000319

Thiocyanate substitution on the incomplete cuboidal clusters [Mo3S4(H2O)9]4+ and [W3S4(H2O)9]4+ Carol A. Routledge and A. Geoffrey Sykes, pp 325 DOI:10.1039/DT9920000325

Synthesis of dppm-stabilized Si-Fe-M (M = Zn, Cd, Hg or Tl) complexes and crystal structure of a heterotetranuclear Fe2Cd2 complex (dppm = Ph2PCH2PPh2) Pierre Braunstein, Laurent Douce, Michael Knorr, Martin Strampfer, Maurizio Lanfranchi and Antonio Tiripicchio, pp 331 DOI:10.1039/DT9920000331

Synthesis, characterization and crystal structure of the heterotrimetallic complexes [NEt4][(Ph3P)2AgS2MoS2Cu(CN)](linear) and [NEt4][(Ph3P)2AgS3MoOCu(CN)](butterfly) Du Shaowu, Zhu Nianyong, Chen Pengcheng, Wu Xintao and Lu Jiaxi, pp 339 DOI:10.1039/DT9920000339

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX007

Back matter J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BP013

Issue 3

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX009

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP015

Copper and nickel complexes of 1,8-disubstituted derivatives of 1,4,8,11-tetraazacyclotetradecane James Chapman, George Ferguson, John F. Gallagher, Michael C. Jennings and David Parker, pp 345 DOI:10.1039/DT9920000345

Isolation and complexation of the cis isomer of the pendant arm macrocycle 6,13-dimethyl-1,4,8,11-tetraazacyclotetradecane-6,13-diamine Paul V. Bernhardt, Peter Comba, Trevor W. Hambley, Geoffrey A. Lawrance and Katalin Várnagy, pp 355 DOI:10.1039/DT9920000355

Transition metal complexes of a functionalised triazamacrocycle Guia de Martino Norante, Massimo Di Vaira, Fabrizio Mani, Stefania Mazzi and Piero Stoppioni, pp 361 DOI:10.1039/DT9920000361

Alkylation and arylation of dichloro[N,N-ethylenebis(salicylideneiminato)]titanium(IV) Euro Solari, Carlo Floriani, Angiola Chiesi-Villa and Corrado Rizzoli, pp 367 DOI:10.1039/DT9920000367

Characterization of the bismuth(III) bromide-[2.2]-paracyclophane (2/1) adduct Ida Maria Vezzosi, Luigi Pietro Battaglia and Anna Bonamartini Corradi, pp 375 DOI:10.1039/DT9920000375

Nickel(II) complexes with unsymmetrical quadridentate Schiff bases having a pendant N-acyl substituent Marek Kwiatkowski and Giuliano Bandoli, pp 379 DOI:10.1039/DT9920000379

Polymer-supported cobalt(II) tetraaza macrocyclic complexes and their reaction with dioxygen James H. Cameron and Stephen Graham, pp 385 DOI:10.1039/DT9920000385

Alkylidyne(carbaborane) complexes of the Group 6 metals. Part 1. Proton-induced alkylidyne ligand migration Stephen A. Brew, David D. Devore, Paul D. Jenkins, Massimino U. Pilotti and F. Gordon A. Stone, pp 393 DOI:10.1039/DT9920000393

Alkylidyne(carbaborane) complexes of the Group 6 metals. Part 2. Alkylidene group capture on protonation in the presence of chelating phosphines Stephen A. Brew, Paul D. Jenkins, John C. Jeffery and F. Gordon A. Stone, pp 401 DOI:10.1039/DT9920000401

Preparation and reactivity of platinathiadiazetidine 1,1-dioxide and platinadiazaphosphetidine 2-oxide complexes Raymond D. W. Kemmitt, Simon Mason, Mark R. Moore and David R. Russell, pp 409 DOI:10.1039/DT9920000409

Synthesis and reactions of -cycloheptatriene and -cycloheptatrienyl derivatives of zirconium and hafnium Gary M. Diamond, Malcolm L. H. Green, Philip Mountford, Neil M. Walker and Judith A. K. Howard, pp 417 DOI:10.1039/DT9920000417

Methoxylation of the Re-Re bond in [Re2(CO)10] by methanol under ambient conditions Yaw Kai Yan, Hardy S. O. Chan, T. S. Andy Hor, Kuang-Lee Tan, Ling-Kang Liu and Yuh-Sheng Wen, pp 423 DOI:10.1039/DT9920000423

Spectroscopy, photoredox properties and X-ray crystal structures of triangular gold(I) and silver(I) phosphine complexes Chi-Ming Che, Hon-Kay Yip, Vivian Wing-Wah Yam, Pik-Yuk Cheung, Ting-Fong Lai, Shen-Jye Shieh and Shie-Ming Peng, pp 427 DOI:10.1039/DT9920000427

Reactivity of the [ReO]3+ core toward Ph2P(Se)NH(Se)PPh2 Roberto Rossi, Andrea Marchi, Lorenza Marvelli, Maurizio Peruzzini, Umberto Casellato and Rodolfo Graziani, pp 435 DOI:10.1039/DT9920000435

Phosphorus donor chemistry of [W(CO)(Ph2PCCPPh2)(S2CNEt2)2] Anne K. Powell and Michael J. Went, pp 439 DOI:10.1039/DT9920000439

Metal K-edge extended X-ray absorption fine structure studies of MoF6, RuF6, RhF6 and related fluoroanions Alan K. Brisdon, John H. Holloway, Eric G. Hope, William Levason, J. Steven Ogden and Ahmed K. Saad, pp 447 DOI:10.1039/DT9920000447

Tri- and tetra-meric copper(I) amides {Cu[N(SiMePh2)2]}3 and {Cu[N(SiMe2Ph)2]}4 Hong Chen, Marilyn M. Olmstead, Steven C. Shoner and Philip P. Power, pp 451 DOI:10.1039/DT9920000451

A novel organometallic ruthenium(IV) thiocyanato-bridged dimer Jonathan W. Steed and Derek A. Tocher, pp 459 DOI:10.1039/DT9920000459

Determination of the number of inner-sphere water molecules in lanthanide(III) polyaminocarboxylate complexes M. Carmen Alpoim, Ana M. Urbano, Carlos F. G. C. Geraldes and Joop A. Peters, pp 463 DOI:10.1039/DT9920000463

Thermodynamics of lanthanide(III) complexation with ethylenediamine in dimethyl sulfoxide Alberto Cassol, Plinio Di Bernardo, Roberto Portanova, Marilena Tolazzi, Giuliana Tomat and Pierluigi Zanonato, pp 469 DOI:10.1039/DT9920000469

Equilibrium and spectroscopic studies of transition metal complexes of sugar-containing thiazolidine derivatives Tamás Gajda, László Nagy, Noémi Rozlosnik, László Korecz and Kálmán Burger, pp 475 DOI:10.1039/DT9920000475

Co-ordination compounds with the N2S-donor ligand 1,5-bis(3,5-dimethylpyrazol-1-yl)-3-thiapentane Willem G. Haanstra, Willem L. Driessen, Mirjam van Roon, Adrianus L. E. Stoffels and Jan Reedijk, pp 481 DOI:10.1039/DT9920000481

Electron-transfer properties of a series of bimetallic rhodium(I) and iridium(I) complexes James E. Anderson, Thomas P. Gregory, Gemma Net and J. Carlos Bayón, pp 487 DOI:10.1039/DT9920000487

New icosahedral heterometallic nickel carbonyl clusters containing bismuth Vincenzo G. Albano, Francesco Demartin, Maria Carmela Iapalucci, Giuliano Longoni, Magda Monari and Piero Zanello, pp 497 DOI:10.1039/DT9920000497

Halogen-facilitated preparation of S4(AsF6)2·xSO2(x? 1) and S4(Sb2F11)2, and a convenient synthesis of Se4(AsF6)2 and Se4(Sb2F11)2 Michael P. Murchie, Jack Passmore, George W. Sutherland and Ramesh Kapoor, pp 503 DOI:10.1039/DT9920000503

Photophysical study of tolylterpyridine complexes. Intramolecular electron transfer in an osmium(II) dyad Edmond Amouyal and Mona Mouallem-Bahout, pp 509 DOI:10.1039/DT9920000509

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX011

Issue 4

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX013

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP021

An improved synthesis and some reactions of a hydrido-bridged ruthenium-manganese complex Andrew J. M. Caffyn, Martin J. Mays and Paul R. Raithby, pp 515 DOI:10.1039/DT9920000515

Synthesis and characterization of Na[cis-mer-Mo(C6F5)(CO)2{P(OMe)3}3] Stephen L. Gipson, Donald F. Mullica, Eric L. Sappenfield, Marc L. Hander and Dale Hugo Leschnitzer, pp 521 DOI:10.1039/DT9920000521

Studies on bis(-indenyl)niobium complexes Malcolm L. H. Green and Andrew K. Hughes, pp 527 DOI:10.1039/DT9920000527

Reactivity of Lewis acids towards nitriles; crystal structure and electron deformation density of C2N2·SbF5 and photoelectron spectrum of AsF5 Inis C. Tornieporth-Oetting, Thomas M. Klapötke, T. Stanley Cameron, Jussi Valkonen, Paul Rademacher and Klaus Kowski, pp 537 DOI:10.1039/DT9920000537

Facile deprotonation of the hydrogensulfido ligand in [Mn2(µ-H)(µ-SH)(CO)6(diphosphine)] complexes F. J. Garcia Alonso, M. García Sanz, V. Riera, S. García Granda and E. Pérez Carreño, pp 545 DOI:10.1039/DT9920000545

Anionic halide and isothiocyanate adducts of zinc and cadmium dithiocarbamates Ricardo Baggio, Alicia Frigerio, Emilia B. Halac, Daníel Vega and Mireílle Perec, pp 549 DOI:10.1039/DT9920000549

Tungsten complexes derived from o-phenylenediamine: methoxo and dialkylhydroxylaminato species Carl Redshaw, Geoffrey Wilkinson, Bilquis Hussain-Bates and Michael B. Hursthouse, pp 555 DOI:10.1039/DT9920000555

Ten-vertex metallaborane chemistry. Aspects of the iridadecaborane closoisonidoisocloso structural continuum Jonathan Bould, John D. Kennedy and Mark Thornton-Pett, pp 563 DOI:10.1039/DT9920000563

Kinetics of conversion of [Ir4(CO)11(PPh2AuPPh3)] into [Ir4(CO)10(µ-PPh2)(µ-AuPPh3)] and their structural characterization Fatima S. Livotto, Maria D. Vargas, Dario Braga and Fabrizia Grepioni, pp 577 DOI:10.1039/DT9920000577

Organotin compounds and deoxyribonucleic acid Renato Barbieri, Arturo Silvestri, Anna M. Giuliani, Vincenzo Piro, Francesco Di Simone and Grazia Madonia, pp 585 DOI:10.1039/DT9920000585

Synthesis and crystallographic studies of crown thioether complexes of bismuth(III) Gerald R. Willey, Miles T. Lakin and Nathaniel W. Alcock, pp 591 DOI:10.1039/DT9920000591

Non-symmetrical tetraaza macrocyclic complexes of nickel(II) and their binding to synthetic polymer supports James H. Cameron, Heather B. Harvey and Ian Soutar, pp 597 DOI:10.1039/DT9920000597

Kinetics and mechanism of axial ligand substitution in iron(III) tetraphenylporphyrin complexes Gus Levey, Dwight A. Sweigart, John G. Jones and Andrea L. Prignano, pp 605 DOI:10.1039/DT9920000605

X-Ray absorption spectroscopy of iron-(II) and -(III) basket-handle porphyrins Christophe Cartier, Michel Momenteau, Elizabeth Dartyge, Alain Fontaine, Gérard Tourillon, Alain Michalowicz and Michel Verdaguer, pp 609 DOI:10.1039/DT9920000609

Short-chain basket handle porphyrins: synthesis and characterisation Damodar Reddy and Tavarekere K. Chandrashekar, pp 619 DOI:10.1039/DT9920000619

Protonation of the alkylidynetungsten complexes [W(CR)(CO)2(-C5H5)](R = C6H4Me-2, C6H3Me2-2,6 or C6H4OMe-2) Judith A. K. Howard, John C. Jeffery, Sihai Li and F. Gordon A. Stone, pp 627 DOI:10.1039/DT9920000627

Protonation of the alkylidynetungsten complex [W(CC6H4CH2OMe-2)(CO)2(-C5H5)] John C. Jeffery, Sihai Li and F. Gordon A. Stone, pp 635 DOI:10.1039/DT9920000635

Structural systematics. Part 4. Conformations of the diphosphine ligands in M2(µ-Ph2PCH2PPh2) and M(Ph2PCH2CH2PPh2) complexes David A. V. Morton and A. Guy Orpen, pp 641 DOI:10.1039/DT9920000641

Oxidatively induced alkyne rotation in dicobalt complexes: structural tests of molecular orbital theory R. Paul Aggarwal, Neil G. Connelly, M. Carmen Crespo, Barry J. Dunne, Philippa M. Hopkins and A. Guy Orpen, pp 655 DOI:10.1039/DT9920000655

Dimethylplatinum complexes of polydentate alkene-sulfur and -selenium ligands Edward W. Abel, David G. Evans, Julian R. Koe, Michael B. Hursthouse and Mohammed Mazid, pp 663 DOI:10.1039/DT9920000663

Cluster formation in Cs2Sn6Br3F11 Isaac Abrahams, John D. Donaldson and Susan M. Grimes, pp 669 DOI:10.1039/DT9920000669

Structures of lanthanide complexes of -ketophosphoryl compounds Ryszard Babecki, Andrew W. G. Platt and John Fawcett, pp 675 DOI:10.1039/DT9920000675

Electron spin resonance spectra of methyl-substituted titanocene(III) halides Karel Mach and J. Barrie Raynor, pp 683 DOI:10.1039/DT9920000683

Synthesis and crystal structures of the carbido cluster anions [Re6C(µ-CO)(CO)18]2- and [Re6(µ-H)C(µ-CO)(CO)18]- Tiziana Beringhelli, Giuseppe D'Alfonso, Henriette Molinari and Angelo Sironi, pp 689 DOI:10.1039/DT9920000689

Crystal structures of a bis(cyclopentadienyl)(Z)-enyne framed manganese(I)-rhenium(I) complex and its [Co2(CO)8] adduct Claudio Lo Sterzo, Giuliano Bandoli and Alessandro Dolmella, pp 697 DOI:10.1039/DT9920000697

Derivatives of tris(2,2-bipyridine)ruthenium(II) with pendant pyridyl or phenol ligands Martin A. Hayes, Claudia Meckel, Erik Schatz and Michael D. Ward, pp 703 DOI:10.1039/DT9920000703

Intramolecular processes of cadmium ethylenebis(oxyethylenenitrilo)tetraacetate: effect of solvents Ruifang Song, Fei Li and Cunzhi Zhang, pp 709 DOI:10.1039/DT9920000709

Spectroscopic studies of the interaction of nickel(II) carboxypeptidase with phosphate and pyrophosphate José M. Moratal, Antonio Donaire, Josep Castells, Hermas R. Jiménez, Jesús Salgado and Frank Hillerns, pp 713 DOI:10.1039/DT9920000713

Some reactions of cationic 16-electron molybdenum mononitrosyl complexes with phenols and arylamines Benjamin J. Coe, Christopher J. Jones, Jon A. McCleverty, Karl Wieghardt and Stefan Stötzel, pp 719 DOI:10.1039/DT9920000719

Optical absorption spectra of Pr3+ in maleato complexes Pomalapally R. Srikanth Sharma, Ranga Jagannathan and Muga Vithal, pp 723 DOI:10.1039/DT9920000723

Dalton communications. Synthesis and crystal structure of a disilver(I) complex of a tetraimine Schiff-base macrocycle having N-isopropylidene-bearing pendant arms Harry Adams, Neil A. Bailey, David E. Fenton, Choki Fukuhara, Paul C. Hellier and Paul D. Hempstead, pp 729 DOI:10.1039/DT9920000729

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX015

Issue 5

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX017

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP029

Indenyl carbametallaboranes. Part 2. Compounds with phenyl or ether groups substituted at cage carbon atoms within a 3-(-C9H7)-3,1,2-closo-CoC2B9 framework Zoë G. Lewis, David Reed and Alan J. Welch, pp 731 DOI:10.1039/DT9920000731

Half-sandwich imido complexes of niobium and tantalum David N. Williams, Jonathan P. Mitchell, Andrew D. Poole, Ulrich Siemeling, William Clegg, David C. R. Hockless, Paul A. O'Neil and Vernon C. Gibson, pp 739 DOI:10.1039/DT9920000739

Oxidation of [2Fe-2S] isoferredoxins with [Co(NH3)6]3+ and [Cr(phen)3]3+(phen = 1,10-phenanthroline): mechanism of electron transfer Emma Lloyd, Nicholas P. Tomkinson and A. Geoffrey Sykes, pp 753 DOI:10.1039/DT9920000753

Oxidative addition of Ph3PCHCHO to [Os3(CO)10(MeCN)2] Antony J. Deeming, Didier Nuel, Nicholas I. Powell and Caroline Whittaker, pp 757 DOI:10.1039/DT9920000757

Crystal structure of sperminium diphosphate hexahydrate Imre Labadi, Reijo Sillanpää and Harri Lönnberg, pp 765 DOI:10.1039/DT9920000765

Origin of the two significantly different W-Cl bond lengths for chemically equivalent bonds in mer-[WCl3(PMe2Ph)3] Keum Yoon, Gerard Parkin, David L. Hughes and G. Jeffery Leigh, pp 769 DOI:10.1039/DT9920000769

Chemistry of o-xylenediyl-metal complexes. Part 5. Silicon and tin metallacycles derived from o-C6H4(HR)2(R = H or SiMe3) Michael F. Lappert, Wing-Por Leung, Colin L. Raston, Brian W. Skelton and Allan H. White, pp 775 DOI:10.1039/DT9920000775

Structural and spectroscopic studies of halogenocuprate(I) complexes Graham A. Bowmaker, Wang Jirong, Robert D. Hart, Allan H. White and Peter C. Healy, pp 787 DOI:10.1039/DT9920000787

Nitrogen-15 tracer evidence discounting the occurrence of a cyclic azide intermediate in the reaction between nitrous acid and hydrazine Rory J. Gowland, Kevin R. Howes and Geoffrey Stedman, pp 797 DOI:10.1039/DT9920000797

Hydration behaviour of some alkyl dithiocarbonates and their mixed-ligand oxalatochromate complexes Satyaprasad Bhattacharya and Bidyut Baran Nath, pp 801 DOI:10.1039/DT9920000801

Trinuclear benzene clusters of ruthenium and osmium Dario Braga, Fabrizia Grepioni, Brian F. G. Johnson, Emilio Parisini, Marcia Martinelli, Mark A. Gallop and Jack Lewis, pp 807 DOI:10.1039/DT9920000807

Mechanism of the two-electron reduction of trans-oxoaquaruthenium(IV) to trans-diaquaruthenium(II) Chi-Keung Li, Chi-Ming Che, Wai-Fong Tong and Ting-Fong Lai, pp 813 DOI:10.1039/DT9920000813

Kinetics and mechanism of oxidation of arsenous acid by 12-tungstocobaltate(III) ion Susheela Dholiya, Aditya Prakash and Raj N. Mehrotra, pp 819 DOI:10.1039/DT9920000819

Quinquedentate co-ordination of amino-substituted tetraazacycloalkanes to chromium(III) Geoffrey A. Lawrance, Manuel Martinez, Brian W. Skelton and Allan H. White, pp 823 DOI:10.1039/DT9920000823

Studies of the protonation in aqueous solution of 1-thia-4,7-diazacyclononane, 1-thia-4,8-diazacyclodecane and 5-thia-2,8-diazanonane Dorine M. Wambeke, Dirk Van De Vondel, Eric Claeys, Gerrit G. Herman and André M. Goeminne, pp 829 DOI:10.1039/DT9920000829

Macrocyclic organometallics. Part 2. An organorhodium(III) complex of a macrocyclic triamine Katsuma Hiraki, Yoshio Fuchita, Yuji Ohta, Johji Tsutsumida and Kenneth I. Hardcastle, pp 833 DOI:10.1039/DT9920000833

Ligands derived from o-benzoquinone: statistical correlation between oxidation state and structural features Oliviero Carugo, Carla Bisi Castellani, Kristina Djinovi and Menico Rizzi, pp 837 DOI:10.1039/DT9920000837

Metal-to-metal transfer of vinyl ligands: ruthenium-catalysed synthesis of vinylmercury compounds Joseph R. Crook, Barbara Chamberlain, Roger J. Mawby, Fritjof C. F. Körber, Amanda J. Reid and Colin D. Reynolds, pp 843 DOI:10.1039/DT9920000843

Synthesis and reactivity of phosphonato, phosphato and arsonato complexes of platinum(II) Raymond D. W. Kemmitt, Simon Mason, John Fawcett and David R. Russell, pp 851 DOI:10.1039/DT9920000851

Cycloaddition reactions of [SNS][AsF6] with potassium tricyanomethanide Arthur J. Banister, Ian Lavender, Jeremy M. Rawson and William Clegg, pp 859 DOI:10.1039/DT9920000859

Alkylidyne(carbaborane) complexes of the Group 6 metals. Part 4. Formation of unsaturated dimetal species, including reverse polytopal isomerisation, and reactions with trimethylphosphine Stephen A. Brew and F. Gordon A. Stone, pp 867 DOI:10.1039/DT9920000867

Alkylidyne(carbaborane) complexes of the Group 6 metals. Part 5. Protonation studies on [NEt4][W(CC6H4OMe-2)(CO)2(5-C2B9H9Me2)] John C. Jeffery, Sihai Li, David W. I. Sams and F. Gordon A. Stone, pp 877 DOI:10.1039/DT9920000877

Mixed-ligand complexes of ruthenium-(III) and -(II) with ethylenediaminetetraacetate and bidentate phosphines and arsines Mirza M. Taqui Khan, Krishnan Venkatasubramanian, Zahida Shirin and Mohan M. Bhadbhade, pp 885 DOI:10.1039/DT9920000885

Molecular structures of titanium(IV) and vanadium(IV) amides and alkoxides Arne Haaland, Kristin Rypdal, Hans Vidar Volden and Richard A. Andersen, pp 891 DOI:10.1039/DT9920000891

Phenoxo-bridged dinickel(II) complexes of a macrocyclic ligand: synthesis, stereochemical equilibria and structure Kausik K. Nanda, Ramprasad Das, Michel J. Newlands, R. Hynes, Eric J. Gabe and Kamalaksha Nag, pp 897 DOI:10.1039/DT9920000897

Occurrence of a µ-SiF interaction in bimetallic trifluorosilyl complexes Pierre Braunstein, Ernest Colomer, Michael Knorr, Antonio Tiripicchio and Marisa Tiripicchio Camellini, pp 903 DOI:10.1039/DT9920000903

Hexa- and nona-nuclear heterometallic clusters based on mercury-capped MCo3(M = Fe or Ru) tetrahedral units Pierre Braunstein, Jacky Rosé, Antonio Tiripicchio and Marisa Tiripicchio Camellini, pp 911 DOI:10.1039/DT9920000911

Systematic build-up of high-nuclearity osmium-mercury clusters Lutz H. Gade, Brian F. G. Johnson, Jack Lewis, Mary McPartlin and Harold R. Powell, pp 921 DOI:10.1039/DT9920000921

Dynamic behaviour of high-nuclearity osmium-mercury clusters in solution Lutz H. Gade, Brian F. G. Johnson and Jack Lewis, pp 933 DOI:10.1039/DT9920000933

Aminomethylenephosphinic acids and their complexing properties Ivan Luke, Konstantinos Bazakas, Petr Hermann and Pavel Vojtíek, pp 939 DOI:10.1039/DT9920000939

Additions and corrections Irimpan I. Mathews and Hattikudur Manohar, pp 945 DOI:10.1039/DT9920000945

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX019

Issue 6

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX021

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP035

Dalton perspectives. Bond stretch isomerism: fact or artifact? Vernon C. Gibson and Mary McPartlin, pp 947 DOI:10.1039/DT9920000947

New catecholato oxorhenium(V) complexes Catherine F. Edwards, William P. Griffith, Andrew J. P. White and David J. Williams, pp 957 DOI:10.1039/DT9920000957

Synthesis and crystal structures of new palladium-sulfur-nitrogen complexes Vanessa C. Ginn, Paul F. Kelly, Alexandra M. Z. Slawin, David J. Williams and J. Derek Woollins, pp 963 DOI:10.1039/DT9920000963

Preparation and crystal structure of [PHBu3][MoHCl4(PBu3)2] David M. Dawson, Richard A. Henderson, Adrian Hills and David L. Hughes, pp 969 DOI:10.1039/DT9920000969

Preparation of dimolybdenum carbonyl and ditungsten carbonyl complexes containing triple fluoro bridges David M. Dawson, Richard A. Henderson, Adrian Hills and David L. Hughes, pp 973 DOI:10.1039/DT9920000973

Synthesis and crystal structure of the organometallic ruthenium(IV) derivative [Ru(C5Me5)Cl2(SC4H8)2]ClO4 Blanca R. Manzano, Felix A. Jalon, Fernando J. Lahoz, Bruno Chaudret and Dominique de Montauzon, pp 977 DOI:10.1039/DT9920000977

Tris(3,5-dimethylpyrazolyl)borato molybdenum and tungsten nitrosyl mentholates Andrzej Wlodarczyk, Stefan S. Kurek, Jean-Dominique F. Foulon, Tom A. Hamor and Jon A. McCleverty, pp 981 DOI:10.1039/DT9920000981

Crystal structure and spectroscopic studies of the complexes [HgX(NO3)(PPh3)](X = Cl, Br or I) Lisa-Jane Baker, Graham A. Bowmaker, Peter C. Healy, Brian W. Skelton and Allan H. White, pp 989 DOI:10.1039/DT9920000989

3-Diphenylphosphino-(1R)-(+)-camphor dimethylhydrazone complexes with platinum(II) and palladium(II) Sarath D. Perera, Bernard L. Shaw and Mark Thornton-Pett, pp 999 DOI:10.1039/DT9920000999

Synthesis, structure and spectroscopic characterization of sodium tetrabutylammonium tris(thiobenzilato)-molybdate(IV) Antonio Cervilla, Elisa Llopis, Antonio Doménech, Antonio Ribera, Pedro Palanca and Pedro Gómez-Romero, pp 1005 DOI:10.1039/DT9920001005

Synthesis and crystallographic characterization of thiazolyl and thiazolinylidene complexes of cyclopentadienyliron(II) Helgard G. Raubenheimer, Fred Scott, Stephanie Cronje, Petrus H. van Rooyen and Karen Psotta, pp 1009 DOI:10.1039/DT9920001009

Synthesis, crystal structure and reactions of the dimeric organolithium compound [{[(MeO)Me2Si]3CLi}2] Franklin I. Aigbirhio, Nabeel H. Buttrus, Colin Eaborn, Sudha H. Gupta, Peter B. Hitchcock, J. David Smith and Alice C. Sullivan, pp 1015 DOI:10.1039/DT9920001015

Synthesis, crystal structure and dynamic behaviour in solution of monocyclooctatetraene uranium alkoxides Thérèse Arliguie, Denise Baudry, Michel Ephritikhine, Martine Nierlich, Monique Lance and Julien Vigner, pp 1019 DOI:10.1039/DT9920001019

Catalytic reduction of nitrous oxide to dinitrogen by carbon monoxide using Group 8 metal carbonyl anions Chen-Shun Li, Kin-Seng Sun and Chien-Hong Cheng, pp 1025 DOI:10.1039/DT9920001025

(Ethylenediaminetetraacetato)nitrosylruthenium, an efficient oxygen-atom transfer agent Mirza M. Taqui Khan, Krishnan Venkatasubramanian, Zahida Shirin and Mohan M. Bhadbhade, pp 1031 DOI:10.1039/DT9920001031

Kinetics and mechanism of the complex formation of ethylenediaminetetraacetatoferrate(III) with sulfur(IV) oxides in aqueous solution Margareta Dellert-Ritter and Rudi van Eldik, pp 1037 DOI:10.1039/DT9920001037

Kinetics and mechanism of the redox behaviour of the ethylenediaminetetraacetatoferrate(III)-sulfite system in aqueous solution Margareta Dellert-Ritter and Rudi van Eldik, pp 1045 DOI:10.1039/DT9920001045

Production of hydrogen peroxide from dioxygen and hydroxylamine or hydrazine catalysed by manganese complexes Tippu S. Sheriff, pp 1051 DOI:10.1039/DT9920001051

Oxidation of water by MnO4- mediated by thermally activated ruthenium dioxide hydrate Andrew Mills, Peter Douglas and Tom Russell, pp 1059 DOI:10.1039/DT9920001059

Ferrocenium µ-oxo-bis[tribromoferrate(III)], a product of reaction of ferrocene with iron(III) bromide (the late) Piers J. M. Evans, Brian W. Fitzsimmons, William G. Marshall, Andrew J. Golder, Leslie F. Larkworthy, David C. Povey and Gallienus W. Smith, pp 1065 DOI:10.1039/DT9920001065

Crystal structure of triphenyltin fluoride David Tudela, Enrique Gutiérrez-Puebla and Angeles Monge, pp 1069 DOI:10.1039/DT9920001069

Nuclear magnetic resonance investigations of a novel intramolecular methylthio replacement process in palladium(II) and platinum(II) complexes of mixed sulfur-phosphine ligands Edward W. Abel, Jonathan C. Dormer, David Ellis, Keith G. Orrell, Vladimir ik, Michael B. Hursthouse and Mohammed A. Mazid, pp 1073 DOI:10.1039/DT9920001073

Monocyclopentadienylchlorooxotitanium(IV) dimers, trimers and tetramers Tommaso Carofiglio, Carlo Floriani, Antonio Sgamellotti, Marzio Rosi, Angiola Chiesi-Villa and Corrado Rizzoli, pp 1081 DOI:10.1039/DT9920001081

Reactions of tetranuclear rhodium-triruthenium clusters with di- and tri-phosphines and with alkynes Jean-Luc Le Grand, W. Edward Lindsell, Kevin J. McCullough, Calum H. McIntosh and A. Gavin Meiklejohn, pp 1089 DOI:10.1039/DT9920001089

Synthesis and structural characterisation of heptaosmium alkyne clusters Dario Braga, Fabrizia Grepioni, Brian F. G. Johnson, Jack Lewis and Julie A. Lunniss, pp 1101 DOI:10.1039/DT9920001101

A unique example of an octahedral iron(II) complex containing four triflate anions and two nitrile-like organometallic cations Luigi Busetto, Valerio Zanotti, Silvia Bordoni, Lucia Carlucci, Vincenzo G. Albano and Dario Braga, pp 1105 DOI:10.1039/DT9920001105

New mononitrosyl derivatives of iron, ruthenium and osmium Gabriele Albertin, Stefano Antoniutti and Emilio Bordignon, pp 1111 DOI:10.1039/DT9920001111

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX023

Issue 7

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX025

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP041

Crown ether complexation of titanium: synthesis and structural characterisation of a cationic oxygen-bridged titanium(IV) dimer Gerald R. Willey, Janet Palin and Nathaniel W. Alcock, pp 1117 DOI:10.1039/DT9920001117

Synthesis of 1,10,19,28-tetraoxa-4,7,13,16,22,25,31,34-octaazacyclohexatriacontane (L) and its complex [Cu4L(OH)4][ClO4]4·2H2O Teruko Shimada, Masahito Kodera, Hisashi kawa and Sigeo Kida, pp 1121 DOI:10.1039/DT9920001121

Eight-co-ordination in manganese(II) and iron(II) complexes with a pyrazole-functionalised tetraazamacrocycle Massimo Di Vaira, Fabrizio Mani and Piero Stoppioni, pp 1127 DOI:10.1039/DT9920001127

Magnetic resonance studies on osmium pentafluoride oxide John H. Holloway, Eric G. Hope, J. Barrie Raynor and Paul T. Townson, pp 1131 DOI:10.1039/DT9920001131

Preparation and characterisation of [PPh4][fac-PtX3(S4N4)](X = Cl, Br or I) Peter S. Belton, Vanessa C. Ginn, Paul F. Kelly and J. Derek Woollins, pp 1135 DOI:10.1039/DT9920001135

Multinuclear magnetic resonance study of the complexation of lanthanide(III) cations with tetrahydropyran-2-methanol E. G. Kwatelai Quartey, Herman van Bekkum and Joop A. Peters, pp 1139 DOI:10.1039/DT9920001139

Structural characterization of platinum(II)-methionine complexes in aqueous solution Tomasz Grochowski and Krystyna Samochocka, pp 1145 DOI:10.1039/DT9920001145

A new reaction vessel for accelerated syntheses using microwave dielectric super-heating effects David R. Baghurst and D. Michael P. Mingos, pp 1151 DOI:10.1039/DT9920001151

Some transition metal complexes of the diacetylenic diphosphine Ph2PC2C2PPh2: synthesis and crystal structures Chris J. Adams, Michael I. Bruce, Ernst Horn and Edward R. T. Tiekink, pp 1157 DOI:10.1039/DT9920001157

Synthesis and reactivity of N-acetylamino acidate(2-) and related complexes of platinum(II) Raymond D. W. Kemmitt, Simon Mason, John Fawcett and David R. Russell, pp 1165 DOI:10.1039/DT9920001165

Thermally and photochemically induced co-ordination change in ruthenium(II) bis(2,2-bipyridine) complexes containing pyridyltriazole ligands Barbara E. Buchanan, Peter Degn, Juan Martin Pavon Velasco, Helen Hughes, Bernadette S. Creaven, Conor Long, Johannes G. Vos, R. Alan Howie, Ronald Hage, John H. van Diemen, Jaap G. Haasnoot and Jan Reedijk, pp 1177 DOI:10.1039/DT9920001177

Molecular organization in crystalline [Co2(CO)8] and [Fe2(CO)9] and a search for alternative packings for [Co2(CO)8] Dario Braga, Fabrizia Grepioni, Piera Sabatino and Angelo Gavezzotti, pp 1185 DOI:10.1039/DT9920001185

Carbon-carbon bond formation in the reaction of benzoyl cyanide with nickel(II)-diketonates Marino Basato, Umberto Casellato, Rodolfo Graziani and Augusto C. Veronese, pp 1193 DOI:10.1039/DT9920001193

Phenylantimony(V) oxalates: isolation and crystal structures of [SbPh4][SbPh2(ox)2], [SbPh3(OMe)]2ox and (SbPh4)2ox Peter L. Millington and D. Bryan Sowerby, pp 1199 DOI:10.1039/DT9920001199

Reactions of [W2(-C5H4R)2X4](R = Me or Pri, X = Cl or Br) with Lewis bases and synthesis of a complex containing a perpendicular bridging iminoacyl ligand Qian Feng, Montserrat Ferrer, Malcolm L. H. Green, Philip Mountford and Victor S. B. Mtetwa, pp 1205 DOI:10.1039/DT9920001205

Preparation and properties of tetrathia- and tetramethyltetraselena-fulvalene salts of [M6O19]2-(M = Mo or W) Smaïl Triki, Lahcène Ouahab, Jean-François Halet, Octavio Peña, Jean Padiou, Daniel Grandjean, Chantal Garrigou-Lagrange and Pierre Delhaes, pp 1217 DOI:10.1039/DT9920001217

Photo-oxidation of [Re2(CO)10] in low-temperature matrices containing O2 Matthew J. Almond and Rachel H. Orrin, pp 1229 DOI:10.1039/DT9920001229

Thermochemical features of di-n-propyldithiocabamate chelates of zinc-group elements Maria A. R. P. de Carvalho, Claudio Airoldi and Antonio G. de Souza, pp 1235 DOI:10.1039/DT9920001235

Selenolato chromium complexes. Synthesis, thermolytic degradation and crystal structure of [Cr(-C5H5)(CO)3(SePh)] Lai Yoong Goh, Yau Y. Lim, Meng S. Tay, Thomas C. W. Mak and Zhong-Y. Zhou, pp 1239 DOI:10.1039/DT9920001239

Modulation of Tc-NX (X = O or S) bonds by -acceptor ligands Jun Lu and M. J. Clarke, pp 1243 DOI:10.1039/DT9920001243

Syntheses and molecular structures of cis and trans monomeric ferrocenecarboxylatocopper(II) complexes with imidazole derivatives A. Latif Abuhijleh and Clifton Woods, pp 1249 DOI:10.1039/DT9920001249

Carboxylate bridging of amino acids in dinuclear macrocyclic nickel(II) complexes Ramprasad Das, Kausik K. Nanda, K. Venkatsubramanian, Parimal Paul and Kamalaksha Nag, pp 1253 DOI:10.1039/DT9920001253

Involvement of iron alkyl complexes and alkyl radicals in the Kharasch reactions: probing the catalysis using iron phosphine complexes David J. Evans, Richard A. Henderson, Adrian Hills, David L. Hughes and Kay E. Oglieve, pp 1259 DOI:10.1039/DT9920001259

Preparation of SeNSNSe(AsF6)2 and structural characterisation of the 6electron-rich aromatic SeNSNSe2+ Edward G. Awere, Jack Passmore and Peter S. White, pp 1267 DOI:10.1039/DT9920001267

Solid-state rearrangement of some 1,3,2,4-dithiadiazoles to their 1,2,3,5 analogues Christine Aherne, Arthur J. Banister, Anthony W. Luke, Jeremy M. Rawson and Roger J. Whitehead, pp 1277 DOI:10.1039/DT9920001277

Synthesis of a new potentially sexidentate pendant-arm macrocyclic polyamino acid and co-ordination to cobalt(III) Trevor W. Hambley, Geoffrey A. Lawrance, Marcel Maeder and Eric N. Wilkes, pp 1283 DOI:10.1039/DT9920001283

Mechanism of the decomposition reaction of trans-[Mo(N2)2(PPh2Me)4] and of its reaction with pyridine M. Angeles Máñez, M. Carmen Puerta, Pedro Valerga and Manuel G. Basallote, pp 1291 DOI:10.1039/DT9920001291

Cyclic voltammetric studies on some manganese(II) tertiary arylphosphine complexes Guang Quing Li, Charles A. McAuliffe, Anthony G. Mackie, Philomena P. Mac Rory and Peter T. Ndifon, pp 1297 DOI:10.1039/DT9920001297

Crystal structures of trinuclear [{MnI2(PPhMe2)1.33}3] and tetranuclear [Mn4(µ4-O)I6(PPhMe2)4] formed by OO bond cleavage by the former Brian Beagley, Anthony G. Mackie, Philomena P. Matear, Charles A. McAuliffe, Peter T. Ndifon and Robin G. Pritchard, pp 1301 DOI:10.1039/DT9920001301

Manganese(II) complexes of trialkylphosphine oxide ligands and their reaction with sulfur dioxide to form ligand-bound adducts Stephen M. Godfrey, David G. Kelly and Charles A. McAuliffe, pp 1305 DOI:10.1039/DT9920001305

Nickel(II) and palladium(II) complexes of diphenylphosphinoacetone and its enolate Emil M. Georgiev, Heindirk tom Dieck, Gert Fendesak, Gerhard Hahn, Galin Petrov and Marko Kirilov, pp 1311 DOI:10.1039/DT9920001311

Kinetics of the silver(I)-catalysed oxidation of H3PO2 with [ethylenebis(biguanide)]silver(III) cation in aqueous perchloric acid solution Rupendranath Banerjee, Rina Das and Subrata Mukhopadhyay, pp 1317 DOI:10.1039/DT9920001317

Synthesis, reactions and catalytic activities of - and 3-allyl-bis(triphenylstibine)rhodium(III) complexes Chong Shik Chin, Sang Young Shin and Changjin Lee, pp 1323 DOI:10.1039/DT9920001323

Dalton communications. 1-Triphenylstannyl-nido-pentaborane(9): an example of 119Sn-11B coupling in a pyramidal borane Lawrence Barton and Dileep K. Srivastava, pp 1327 DOI:10.1039/DT9920001327

Imido ligand reactivity in four-co-ordinate bis(imido) complexes of molybdenum(VI) Matthew Jolly, Jonathan P. Mitchell and Vernon C. Gibson, pp 1329 DOI:10.1039/DT9920001329

Intermetal exchange of oxo, imido and alkylidene ligands Matthew Jolly, Jonathan P. Mitchell and Vernon C. Gibson, pp 1331 DOI:10.1039/DT9920001331

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX027

Issue 8

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX029

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP049

Dalton perspectives. Do R3Si+ ions exist in solution? Paul D. Lickiss, pp 1333 DOI:10.1039/DT9920001333

Synthesis and molecular structure of the adduct trichlorobismuth-1,4,7,10,13,16-hexathiacyclooctadecane (1/1) Gerald R. Willey, Miles T. Lakin and Nathaniel W. Alcock, pp 1339 DOI:10.1039/DT9920001339

Energetics and reaction pathways of some reactions leading to SNSAsF6 and SNAsF6 Edward G. Awere and Jack Passmore, pp 1343 DOI:10.1039/DT9920001343

Synthesis and characterisation of organometallic charge-transfer salts containing the bis(benzene)molybdenum radical cation Dermot O'Hare, Mohamedally Kurmoo, Rhian Lewis and Harry Powell, pp 1351 DOI:10.1039/DT9920001351

Synthesis, characterization, electrochemistry and oxo-transfer kinetics of oxomolybdenum-(VI), -(V) and -(IV) complexes with ONS donors Samiran Bhattacharjee and Ramgopal Bhattacharyya, pp 1357 DOI:10.1039/DT9920001357

Alkylidyne(carbaborane) complexes of the Group 6 metals. Part 6. exo-nido-Tungstacarbaborane compounds Stephen A. Brew, John C. Jeffery, Mark D. Mortimer and F. Gordon A. Stone, pp 1365 DOI:10.1039/DT9920001365

Chelating tendencies of N,N-bis(2-hydroxyphenyl)ethylenediamine-N,N-diacetic acid John F. Gibson and Owen J. Vaughan, pp 1375 DOI:10.1039/DT9920001375

A unique application of acid-Nafion as a co-catalyst and support Andrew J. Seen, Kingsley J. Cavell, Alastair M. Hodges and Albert W.-H. Mau, pp 1381 DOI:10.1039/DT9920001381

Transition metal Schiff-base complexes as ligands in tin chemistry. Part 2. A tin-119 Mössbauer spectroscopic investigation of the adducts SnBunxCl3-x(OR)·ML (x= 0 or 1; R = H or alkyl; M = CuII or NiII; L = quadridentate Schiff-base ligand) Desmond Cunningham and John McGinley, pp 1387 DOI:10.1039/DT9920001387

Homoleptic cyclohexanethiolato complexes of mercury(II) Teresa Alsina, William Clegg, Kelly A. Fraser and Joan Sola, pp 1393 DOI:10.1039/DT9920001393

Solution versus solid state conformation of Group 12 metal complexes of active aldehyde derivatives of thiamine Maria Louloudi, Nick Hadjiliadis and Ian S. Butler, pp 1401 DOI:10.1039/DT9920001401

Chemistry of mercaptopyridines and related ligands. Part 3. Novel examples of copper(II)-tertiary phosphine complexes stabilized by 1-hydroxypyridine-2-thione Tarlok S. Lobana and Paramjit K. Bhatia, pp 1407 DOI:10.1039/DT9920001407

Photoredox properties of [OsN(NH3)4]3+ and mechanism of formation of [{Os(NH3)4(CH3CN)}2N2]5+ through a nitrido-coupling reaction Hon-Wah Lam, Chi-Ming Che and Kwok-Yin Wong, pp 1411 DOI:10.1039/DT9920001411

Disproportionation of a ruthenium(III) nitro complex of a macrocyclic tertiary amine in an aqueous medium Kwok-Yin Wong, Chi-Ming Che, Wai-Hing Yip, Ru-Ji Wang and Thomas C. W. Mak, pp 1417 DOI:10.1039/DT9920001417

New non-oxo vanadium-(IV) and -(V) complexes Themistoklis A. Kabanos, Alexandra M. Z. Slawin, David J. Williams and J. Derek Woollins, pp 1423 DOI:10.1039/DT9920001423

Ring-opening reactions of oxacyclobutane with [M(NO){HB(3,5-Me2C3HN2)3}X2](M = Mo, X = Cl or Br; M = W, X = Cl) Emma M. Coe, Christopher J. Jones and Jon A. McCleverty, pp 1429 DOI:10.1039/DT9920001429

Solid state and solution studies of tungsten(VI) oxotetraalkoxides William Clegg, R. John Errington, Peter Kraxner and Carl Redshaw, pp 1431 DOI:10.1039/DT9920001431

The reaction of cyclooctatetraene with [RuCl(H)(PPh3)3] Giuseppe Alibrandi and Brian E. Mann, pp 1439 DOI:10.1039/DT9920001439

Spectroscopic characterization of nickel(II) carboxypeptidase Ivano Bertini, Antonio Donaire, Roberto Monnanni, José-María Moratal and Jesús Salgado, pp 1443 DOI:10.1039/DT9920001443

Dalton communications. Convenient preparations of the mixed 1,3,2,4-/1,2,3,5-dithiadiazolylium salt [SNSNC-C6H4-CNSSN][AsF6]2 and the first mixed free radical, p-[SNSNC-C6H4-CNSSN]2 Arthur J. Banister, Ian Lavender, Jeremy M. Rawson and Roger J. Whitehead, pp 1449 DOI:10.1039/DT9920001449

Preparation and X-ray characterisation of the first heteroleptic hydrocarbon-soluble tin(II) pseudohalide, Sn(NCS)[N(SiMe3)2] Richard W. Chorley, Peter B. Hitchcock and Michael F. Lappert, pp 1451 DOI:10.1039/DT9920001451

Additions and corrections Narumi Sakagami, Mariko Hayashi and Sumio Kaizaki, pp 1453 DOI:10.1039/DT9920001453

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX031

Issue 9

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX033

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP055

An in situ infrared study of CO2 reduction catalysed by rhenium tricarbonyl bipyridyl derivatives Paul Christensen, Andrew Hamnett, Andrew V. G. Muir and John A. Timney, pp 1455 DOI:10.1039/DT9920001455

Optical resolution mechanism in an optically active solvent or cosolute in an equilibrium state Kazuaki Yamanari, pp 1465 DOI:10.1039/DT9920001465

Complexes of an azine diphosphine with Group 6 metal carbonyls: crystal structures of Z,Z-PPh2CH2C(But)N-NC(But)CH2PPh2 and [Mo(CO)3(E,Z-PPh2CH2C(But)N-N(But)CCH2PPh2)] Sarath D. Perera, Bernard L. Shaw and Mark Thornton-Pett, pp 1469 DOI:10.1039/DT9920001469

Secondary bonding. Part 15. Influence of lone pairs on co-ordination: comparison of diphenyl-tin(IV) and -tellurium(IV) carboxylates and dithiocarbamates Nathaniel W. Alcock, Jane Culver and S. Mark Roe, pp 1477 DOI:10.1039/DT9920001477

Nitrido- and oxo-technetium(V) chelate complexes with N2S2 ligands: synthesis and crystal structures Andrea Marchi, Lorenza Marvelli, Roberto Rossi, Luciano Magon, Valerio Bertolasi, Valeria Ferretti and Paola Gilli, pp 1485 DOI:10.1039/DT9920001485

Ethoxycarbonyl-, cyano- and methoxy-methyl complexes of nickel(II) and their carbonylation reactions Tomás R. Belderraín, D. Andrew Knight, Derek J. Irvine, Margarita Paneque, Manuel L. Poveda and Ernesto Carmona, pp 1491 DOI:10.1039/DT9920001491

Nickel K-edge extended X-ray absorption fine structure studies of bis(diamine) nickel-(II) and -(III) complexes John Evans, William Levason and Richard J. Perry, pp 1497 DOI:10.1039/DT9920001497

In situ infrared spectroelectrochemical studies of tetraphenylporphyrin complexes containing manganese, iron and cobalt David H. Jones and A. Scott Hinman, pp 1503 DOI:10.1039/DT9920001503

2-Galla-arachno-tetraborane(10), H2GaB3H8: synthesis, properties and structure of the gaseous molecule as determined by electron diffraction Colin R. Pulham, Anthony J. Downs, David W. H. Rankin and Heather E. Robertson, pp 1509 DOI:10.1039/DT9920001509

Substitution and fragmentation reactions of pentapalladium cluster compounds Andrew D. Burrows, Jonathan C. Machell, D. Michael P. Mingos and Harry R. Powell, pp 1521 DOI:10.1039/DT9920001521

Reactions of bis(phosphido)-bridged dimanganese complexes with alkynes and allene Ljubica Manojlovi-Muir, Martin J. Mays, Kenneth W. Muir and Kevan W. Woulfe, pp 1531 DOI:10.1039/DT9920001531

Synthesis and reactions of acyl(cyclohexadienyl)manganates John B. Sheridan, Ranbir S. Padda, Karen Chaffee, Chenjie Wang, Yazhong Huang and Roger Lalancette, pp 1539 DOI:10.1039/DT9920001539

Mechanism of alcohol oxidation by trans-dioxoruthenium(VI): the effect of driving force on reactivity Chi-Ming Che, Wai-Tong Tang, Wai-On Lee, Kwok-Yin Wong and Tai-Chu Lau, pp 1551 DOI:10.1039/DT9920001551

Crystal structures, dynamic behaviour and electrochemical properties of the copper-(I) and -(II) complexes of a new N2S2 ligand David A. Nation, Max R. Taylor and Kevin P. Wainwright, pp 1557 DOI:10.1039/DT9920001557

Preparation and crystal structure of the paramagnetic solid F3CCSSSCCF3AsF6: implications for the identity of RCSSCR+ T. Stanley Cameron, Robert C. Haddon, Saba M. Mattar, Simon Parsons, Jack Passmore and Arthur P. Ramirez, pp 1563 DOI:10.1039/DT9920001563

Synthesis and some reactions of tris(cyclopentadienyl)-uranium(IV) hydrides; crystal structure of [U(C5H4But)3H] Jean-Claude Berthet, Jean-François Le Maréchal, Monique Lance, Martine Nierlich, Julien Vigner and Michel Ephritikhine, pp 1573 DOI:10.1039/DT9920001573

Site preference of vanadium doped into ZrSiO4 and ZrGeO4 and of terbium doped into ZrGeO4 Peter Chandley, Robin J. H. Clark, Ross J. Angel and G. David Price, pp 1579 DOI:10.1039/DT9920001579

Metal-betaine interactions. Part 15. Mercury(II) chloride adducts of betaine derivatives Xiao-Ming Chen and Thomas C. W. Mak, pp 1585 DOI:10.1039/DT9920001585

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX035

Issue 10

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX037

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP063

Cycloheptatri-ene and -enyl derivatives of niobium Malcolm L. H. Green, Andrew K. Hughes, Patrick C. McGowan, Philip Mountford, Peter Scott and Stephen J. Simpson, pp 1591 DOI:10.1039/DT9920001591

Two-, three- and four-co-ordinate gold(I) complexes of 1,2-bis(diphenylphosphino)-1,2-dicarba-closo-dodecaborane Olga Crespo, M. Concepción Gimeno, Antonio Laguna and Peter G. Jones, pp 1601 DOI:10.1039/DT9920001601

Penta- and hexa-nuclear ruthenium µ-2-pyridyl complexes Kenneth I. Hardcastle, Bruce R. Cockerton, Antony J. Deeming and Manzurul Karim, pp 1607 DOI:10.1039/DT9920001607

Photochemical synthesis and stereochemistry of cobalt(III) complexes containing pyrimidine-2-thionate and derivatives Kazuaki Yamanari, Kensen Okusako and Sumio Kaizaki, pp 1615 DOI:10.1039/DT9920001615

Photochemical synthesis and stereochemistry of cobalt(III) complexes containing 2-thiouracilate and related ligands Kazuaki Yamanari, Kensen Okusako, Yoshinori Kushi and Sumio Kaizaki, pp 1621 DOI:10.1039/DT9920001621

Synthesis, properties and crystal structures of diastereomeric areneruthenium(II) chiral Schiff-base complexes Sisir K. Mandal and Akhil R. Chakravarty, pp 1627 DOI:10.1039/DT9920001627

Quinquedentate co-ordination of amino-substituted tetraazacycloalkanes to cobalt(III). Part 1. Complexes of macrocycles of differing ring size, and crystal structures of cis isomers Geoffrey A. Lawrance, Therese M. Manning, Marcel Maeder, Manuel Martinez, Margaret A. O'Leary, Wyona C. Patalinghug, Brian W. Skelton and Allan H. White, pp 1635 DOI:10.1039/DT9920001635

Quinquedentate co-ordination of amino-substituted tetraazacycloalkanes to cobalt(III). Part 2. Crystal structures of trans isomers, molecular mechanics calculations and base-hydrolysis kinetics Trevor W. Hambley, Geoffrey A. Lawrance, Manuel Martinez, Brian W. Skelton and Allan H. White, pp 1643 DOI:10.1039/DT9920001643

Quinquedentate co-ordination of amino-substituted tetraazacycloalkanes to cobalt(III). Part 3. Synthesis of an unsymmetric ligand and crystal structure of its cis-chlorocobalt(III) complex Geoffrey A. Lawrance, Manuel Martinez, Brian W. Skelton and Allan H. White, pp 1649 DOI:10.1039/DT9920001649

Synthesis and characterisation of an octaazamacrobicyclic ligand using alkali-metal ions as templates; characterisation of a dicopper complex as the perchlorate salt Kaliappa G. Ragunathan and Parimal K. Bharadwaj, pp 1653 DOI:10.1039/DT9920001653

Oxo-, nitrido- and imido-osmium(VI) complexes with a sterically bulky chelating alkoxide ligand Zao-Ying Li, Wing-Yiu Yu, Chi-Ming Che, Chung-Kwong Poon, Ru-Ji Wang and Thomas C. W. Mak, pp 1657 DOI:10.1039/DT9920001657

Nitrogen nuclear magnetic resonance spectroscopy as a probe of bonding, bending and fluxionality of the imido ligand Donald C. Bradley, Stephen R. Hodge, John D. Runnacles, Mark Hughes, Joan Mason and Raymond L. Richards, pp 1663 DOI:10.1039/DT9920001663

Reaction of sterically hindered imidazolate complexes with iron porphyrins Cynthia T. Brewer and Greg Brewer, pp 1669 DOI:10.1039/DT9920001669

Nickel(II) complexes of novel tetraaza macrocyclic ligands bearing pendant donor groups Bohdan Korybut-Daszkiewicz, pp 1673 DOI:10.1039/DT9920001673

New methoxo-, hydroxo- and pyrazolate-bridged platinum(II) complexes. Crystal structure of [NBu4]2[{Pt(C6F5)2}2(µ-OH)(µ-dmpz)](dmpz = 3,5-dimethylpyrazolate) Gregorio López, José Ruiz, Gabriel García, Consuelo Vicente, Venancio Rodríguez, Gregorio Sánchez, Juan A. Hermoso and Martín Martínez-Ripoll, pp 1681 DOI:10.1039/DT9920001681

Cyclic and short-chain linear phosphazenes with hindered aryloxy side groups Harry R. Allcock, Dennis C. Ngo, Masood Parvez and Karyn Visscher, pp 1687 DOI:10.1039/DT9920001687

Some reactions of [Os3(µ-H)3(CO)9(µ3-CX)](X = OMe or Cl): the formation of C-N and C-P bonds Brian F. G. Johnson, Fernando J. Lahoz, Jack Lewis, Neville D. Prior, Paul R. Raithby and Wing-Tak Wong, pp 1701 DOI:10.1039/DT9920001701

The reactions of methylgermanes with [µ4-Ge{Co2(CO)7}2]: extending the chain of linked GeCo2 triangles Siew Kim Lee, Kenneth M. Mackay, Brian K. Nicholson and Miranda Service, pp 1709 DOI:10.1039/DT9920001709

Syntheses, spectroscopy and X-ray crystal structures of luminescent nitrido- and trans-dioxo-rhenium(V) complexes of phosphines and arsines Vivian Wing-Wah Yam, Kwok-Kwong Tam, Ming-Chu Cheng, Shie-Ming Peng and Yu Wang, pp 1717 DOI:10.1039/DT9920001717

Synthesis and mechanisms of fluxionality of the clusters [Ir4(CO)11(PH3-nPhn)](n= 1 or 2) Brian E. Mann, Maria D. Vargas and Rayesh Khadar, pp 1725 DOI:10.1039/DT9920001725

A reinvestigation of the solution structure and dynamics of [Fe2(5-C5H5)2(CO)4-n(CNMe)n], n= 1 or 2 Marie A. Guillevic, E. Louise Hancox and Brian E. Mann, pp 1729 DOI:10.1039/DT9920001729

Synthesis and characterization of some rhenium complexes with the new mixed phosphorus-nitrogen donor ligand NPh(CH2CH2PPh2)2 Demetrius Michos, Xiao-Liang Luo and Robert H. Crabtree, pp 1735 DOI:10.1039/DT9920001735

Formation in solution, preparation, crystal structure and magnetic characterization of di-µ-hydroxo-bis[diaqua(2,2-bipyrimidine)copper(II)] diperchlorate dihydrate Isabel Castro, Miguel Julve, Giovanni De Munno, Giuseppe Bruno, José Antonio Real, Francesc Lloret and Juan Faus, pp 1739 DOI:10.1039/DT9920001739

Salicylideneserinato complexes of vanadium. Crystal structure of the sodium salt of a complex of vanadium-(IV) and -(V) João Costa Pessoa, J. Armando L. Silva, Antonio L. Vieira, Luís Vilas-Boas, Paul O'Brien and Peter Thornton, pp 1745 DOI:10.1039/DT9920001745

Dalton communications. Reactions of co-ordinated phosphines and arsines. Iron(II)-facilitated syntheses of 1-phenylphosphetane and 1-phenylarsetane Armin Bader, Devendra D. Pathak, S. Bruce Wild and Anthony C. Willis, pp 1751 DOI:10.1039/DT9920001751

Edge-shared, bioctahedral, bismuth phosphine complexes William Clegg, R. John Errington, Richard J. Flynn, Marjorie E. Green, David C. R. Hockless, Nicholas C. Norman, Vernon C. Gibson and Kayumars Tavakkoli, pp 1753 DOI:10.1039/DT9920001753

Synthesis and structural characterization of [Au9Ag4Cl4(PMePh2)8][C2B9H12]·H2O·0.5CH2Cl2: the first example of an icosahedral silver-gold cluster Royston C. B. Copley and D. Michael P. Mingos, pp 1755 DOI:10.1039/DT9920001755

An osmium(II) complex of a novel hexadentate diphosphinobis(disulfide) macrocyclic ligand with pendant thiolate groups Jonathan R. Dilworth, Yifan Zheng and John R. Miller, pp 1757 DOI:10.1039/DT9920001757

Additions and corrections Adrian Hills, David L. Hughes, Colin J. Macdonal, Modher Y. Mohammed, Christopher J. Pickett, Bela Kraut, Guillermo Ferraudi, Andrew Mills, Peter Douglas and Tom Russell, pp 1759 DOI:10.1039/DT9920001759

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX039

Issue 11

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX041

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP069

Chromium-(II) and -(III) complexes containing hydrazines or hydrazinecarboxylates as ligands Dennis A. Edwards, David Thompsett and John M. Bellerby, pp 1761 DOI:10.1039/DT9920001761

Binuclear - and 3-benzylic derivatives of nickel Juan Cámpora, Enrique Gutiérrez, Manuel L. Poveda, Caridad Ruíz and Ernesto Carmona, pp 1769 DOI:10.1039/DT9920001769

Conversion of alk-1-ynes into alkyne, alkynyl, alkylidyne and alkylidene complexes of molybdenum and tungsten Adrian Hills, David L. Hughes, Neimat Kashef, M. Amelia N. D. A. Lemos, Armando J. L. Pombeiro and Raymond L. Richards, pp 1775 DOI:10.1039/DT9920001775

Studies on metal complexes of chiral cyclen. Part 14. Configurational isomerism in a complex of cobalt(III) Sei Tsuboyama, Yoshikatsu Shiga, Yoshinobu Takasyo, Tamiko Chijimatsu, Kimiko Kobayashi, Kaoru Tsuboyama and Tosio Sakurai, pp 1783 DOI:10.1039/DT9920001783

Kinetics and thermodynamics of iodide binding to aquacobalamin in methanol-water solvent mixtures Rafael Moreno-Esparza, Mercedes Lopez and Keith H. Pannell, pp 1791 DOI:10.1039/DT9920001791

Reactions of (6-arene)(6-[2.2]paracyclophane)ruthenium(II) complexes with nucleophiles Mark R. J. Elsegood, Jonathan W. Steed and Derek A. Tocher, pp 1797 DOI:10.1039/DT9920001797

o-Phenylenediamine and related complexes of chromium, vanadium and manganese Carl Redshaw, Geoffrey Wilkinson, Bilquis Hussain-Bates and Michael B. Hursthouse, pp 1803 DOI:10.1039/DT9920001803

Determination of the principal axes of the magnetic susceptibility tensor for horse heart oxidized cytochrome c in solution Yasuhiko Yamamoto, Kenji Komori, Norishige Nanai, Riichirô Chûjô and Yoshio Inoue, pp 1813 DOI:10.1039/DT9920001813

Ab initio calculations on methane interacting with the fourteen-electron Ni(PH3)2 fragment Nazzareno Re, Marzio Rosi, Antonio Sgamellotti, Carlo Floriani and Martyn F. Guest, pp 1821 DOI:10.1039/DT9920001821

Crystal structures of [NBun4]2[M(C3S5)(C3Se5)](M = Ni or Pd) and properties of the nickel(II) complex Gen-etsu Matsubayashi, Satoshi Tanaka and Akito Yokozawa, pp 1827 DOI:10.1039/DT9920001827

Trinuclear aggregates of rhodium and iridium supported by thiolate bridges: synthesis and crystal structure Miguel A. Ciriano, Jesús J. Pérez-Torrente, Fernando J. Lahoz and Luis A. Oro, pp 1831 DOI:10.1039/DT9920001831

Synthesis of the first hydroxomonoaryltin(IV) complexes. Crystal and molecular structure of [{Sn[C6H3(NNC6H4Me-4)-2,Me-5]Cl2(µ-OH)}2] José Vicente, María-Teresa Chicote, María-del-Carmen Ramírez-de-Arellano and Peter G. Jones, pp 1839 DOI:10.1039/DT9920001839

Synthesis, crystal structure, electrochemistry and molecular-orbital analysis of the piano-stool dimer [Mo2(-C5H5)2(CO)4(NC5H4PPh2-2)2] Carmela G. Arena, Felice Faraone, Marco Fochi, Maurizio Lanfranchi, Carlo Mealli, Renato Seeber and Antonio Tiripicchio, pp 1847 DOI:10.1039/DT9920001847

Pearson's hard-soft acid-base principle and the heterolytic dissociative version of Pauling's bond-energy equation Dipankar Datta, pp 1855 DOI:10.1039/DT9920001855

Dinuclear hydride and 3-bonded dithioformate complexes of iron(II) Helgard G. Raubenheimer, Fred Scott, Stephanie Cronje and Petrus H. van Rooyen, pp 1859 DOI:10.1039/DT9920001859

Dalton communications. Rhenium-iridium clusters via addition of [Ir(CO)4]- to [Re2(µ-H)2(CO)8] Tiziana Beringhelli, Gianfranco Ciani, Giuseppe D'Alfonso, Luigi Garlaschelli, Massimo Moret and Angelo Sironi, pp 1865 DOI:10.1039/DT9920001865

On the carbon nucleophilicity of proton sponge Luciana Maresca, Giovanni Natile and Francesco P. Fanizzi, pp 1867 DOI:10.1039/DT9920001867

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX043

Issue 12

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX045

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP073

Ligand design and metal-ion recognition. Comparison of the interaction of cobalt(II) and nickel(II) with 16- to 19-membered mixed-donor macrocycles Kenneth R. Adam, Michael Antolovich, Darren S. Baldwin, Larry G. Brigden, Paul A. Duckworth, Leonard F. Lindoy, Alan Bashall, Mary McPartlin and Peter A. Tasker, pp 1869 DOI:10.1039/DT9920001869

Synthesis and electrochemical characterization of bis(fulvalene)diiron electrode films Katsura Sakamoto, Hiroshi Nishihara and Kunitsugu Aramaki, pp 1877 DOI:10.1039/DT9920001877

Bis(N,N) chelated rhenium(III): the [ReL2Cl2]Cl family [L = 2-(arylazo)pyridine] Prasanta Ghosh, Amitava Pramanik, Nilkamal Bag and Animesh Chakravorty, pp 1883 DOI:10.1039/DT9920001883

Synthesis and characterization of dithiocarbonate derivatives of zinc and cadmium bis(dithiocarbamates) Ricardo Baggio, Alicia Frigerio, Emilia B. Halac, Daniel Vega and Mireille Perec, pp 1887 DOI:10.1039/DT9920001887

Alkali-metal-assisted transfer of the carbamate group from phosphocarbamates to alkyl halides: a new easy way to alkali-metal carbamates and to carbamate esters Michele Aresta and Eugenio Quaranta, pp 1893 DOI:10.1039/DT9920001893

Trimetallo derivatives of lacunary 9-tungstosilicate heteropolyanions. Part 1. Synthesis and charaterization Jingfu Liu, Fernando Ortéga, Purisai Sethuraman, Dimitris E. Katsoulis, Catherine E. Costello and Michael T. Pope, pp 1901 DOI:10.1039/DT9920001901

Complexes of gold(III) with mononegative bidentate N,O-ligands Ajmar Dar, Karen Moss, Stephanie M. Cottrill, R. V. Parish, Charles A. McAuliffe, Robin G. Pritchard, Brian Beagley and Jennifer Sandbank, pp 1907 DOI:10.1039/DT9920001907

Manganese(II) complexes containing the phenyl diphenylphosphinate ligand and their reactivity with SO2; the first crystallographically characterised complex containing a phosphinate ligand Shaker Abbas, Brian Beagley, Stephen M. Godfrey, David G. Kelly, Charles A. McAuliffe and Robin G. Pritchard, pp 1915 DOI:10.1039/DT9920001915

The co-ordination chemistry of mixed pyridine-phenol ligands; synthesis of 6-(2-hydroxyphenyl)-2,2-bipyridine (HL) and the crystal structures of [Cu2L2(µ-MeCO2)][PF6]·1.5CH2Cl2 and [CoL2][PF6]·MeCN John C. Jeffery, Erik Schatz and Michael D. Ward, pp 1921 DOI:10.1039/DT9920001921

Synthesis and reactions of 1,3-bis(diphenylphosphino-P)-2-methylallyl complexes of platinum Bernard L. Shaw and Jonathan D. Vessey, pp 1929 DOI:10.1039/DT9920001929

Synthesis, structure and reactivity of anionic tripalladium cluster compounds Andrew D. Burrows, Jonathan C. Machell and D. Michael P. Mingos, pp 1939 DOI:10.1039/DT9920001939

Mechanism of oxidative dehydrogenation of alcohols co-ordinated to ruthenium Michael J. Ridd, David J. Gakowski, Graeme E. Sneddon and F. Richard Keene, pp 1949 DOI:10.1039/DT9920001949

Synthesis, spectroscopic and electrochemical characterization of different isomer types in tetrazolatoindium(III) porphyrins Roger Guilard, Nadine Jagerovic, Alain Tabard, Christine Naillon and Karl M. Kadish, pp 1957 DOI:10.1039/DT9920001957

Structural studies on phenyl bismuth halides and halogenoanions William Clegg, R. John Errington, George A. Fisher, David C. R. Hockless, Nicholas C. Norman, A. Guy Orpen and Susan E. Stratford, pp 1967 DOI:10.1039/DT9920001967

Carbon-hydrogen activation of ketones by 2-phenylazophenylgold(III) complexes to give ketonylgold(III) complexes José Vicente, María-Dolores Bermúdez, María-Pilar Carrillo and Peter G. Jones, pp 1975 DOI:10.1039/DT9920001975

Electronic and geometrical structure of the pyrazole ligand co-ordinated to metal centres Piercarlo Fantucci and Venanzio Valenti, pp 1981 DOI:10.1039/DT9920001981

Dalton communications. An unprecedented palladium-catalysed carbon-metal bond formation Claudio Lo Sterzo, pp 1989 DOI:10.1039/DT9920001989

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX047

Issue 13

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX049

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP079

Synthesis, structure and reactions of a palladium cluster compound containing bound acetonitrile, [Pd4(µ-SO2)2(µ3-SO2)(MeCN)(PPh3)4] Andrew D. Burrows, Jonathan C. Machell and D. Michael P. Mingos, pp 1991 DOI:10.1039/DT9920001991

Synthesis and structural analysis of a homogeneous series of anhydrous rare-earth-metal perchlorates Frédéric Favier and Jean-Louis Pascal, pp 1997 DOI:10.1039/DT9920001997

New alkyne complexes of niobium(I) Fausto Calderazzo, Christian Felten, Guido Pampaloni and Dieter Rehder, pp 2003 DOI:10.1039/DT9920002003

Nuclear magnetic resonance studies of beryllium complexes in aqueous solution (the late) Dennis F. Evans and Chih Y. Wong, pp 2009 DOI:10.1039/DT9920002009

d-d Spectral assignments in tetragonal nickel(II) complexes Robert J. Deeth and Christopher M. Kemp, pp 2013 DOI:10.1039/DT9920002013

Ligand substitution reactions of aquacobalamin: evidence for a dissociative interchange mechanism Helder M. Marques, Julia C. Bradley and Linda A. Campbell, pp 2019 DOI:10.1039/DT9920002019

Structure and magnetism of cubic low-spin 4d5[RuIII(NH3)6]Br[SO4] Philip A. Reynolds, Christopher D. Delfs, Brian N. Figgis, Lutz M. Engelhardt, Boujemaa Moubaraki and Keith S. Murray, pp 2029 DOI:10.1039/DT9920002029

Iron complexes with polythioether ligands: the relation of unusually large Mössbauer quadrupole splittings to structure David L. Hughes, Manuel Jimenez-Tenorio, G. Jeffery Leigh, Andrew Houlton and Jack Silver, pp 2033 DOI:10.1039/DT9920002033

Thermodynamic study of dimethyltin(IV) complexes with nucleoside 5-triphosphates Giuseppe Arena, Rosario Cali, Annalinda Contino, Nunzia Loretta, Salvatore Musumeci and Roberto Purrello, pp 2039 DOI:10.1039/DT9920002039

Dependence of the co-ordination sphere in bis(valinato)-copper(II) complexes on solvent and alkylation at nitrogen V. Noethig-Laslo and N. Pauli, pp 2045 DOI:10.1039/DT9920002045

Synthesis, crystal structure and ligational properties of a new macrotricyclic ligand Andrea Bencini, Antonio Bianchi, Mario Ciampolini, Paolo Dapporto, Vieri Fusi, Mauro Micheloni, Nicoletta Nardi, Paola Paoli and Barbara Valtancoli, pp 2049 DOI:10.1039/DT9920002049

1,3,5-Triazine adducts with AsF5. Crystal structure of (HCN)3·AsF5 Inis C. Tornieporth-Oetting, Thomas M. Klapötke, Ulrike Behrens and Peter S. White, pp 2055 DOI:10.1039/DT9920002055

Interaction of cyclohexyl isocyanate with oxoruthenium(V) 2-alkyl-2-hydroxybutyrates Carl Redshaw, William Clegg and Geoffrey Wilkinson, pp 2059 DOI:10.1039/DT9920002059

Some chemistry of half-sandwich -arene tungsten compounds Malcolm L. H. Green, Andrew K. Hughes, Paul Lincoln, Jesus J. Martin-Polo, Philip Mountford, Andrea Sella, Luet-Lok Wong, Judith A. Bandy, Thomas W. Banks, Keith Prout and David J. Watkin, pp 2063 DOI:10.1039/DT9920002063

Ionic complexes from cobalt and zinc halides with pyridine N-oxide and trimethylamine oxide Songchun Jin, Mark Nieuwenhuyzen and Cuthbert J. Wilkins, pp 2071 DOI:10.1039/DT9920002071

Synthesis of high-spin five-co-ordinate Lewis-base adducts of bis(triazen-1-olato)cobalt(II). Studies of reversible dioxygen binding Mikoaj F. Rudolf, Juliusz A. Wolny, Tadeusz Lis and Przemysaw Starynowicz, pp 2079 DOI:10.1039/DT9920002079

Phenylantimony(V) fluoride halides: isolation and crystal structures of SbPh2Br2F·SbPh2Br3, (SbPh2BrF)2O and SbPh3Cl1.8F0.2 Stephen P. Bone, Michael J. Begley and D. Bryan Sowerby, pp 2085 DOI:10.1039/DT9920002085

Molybdenum(V) complexes with monothio--diketones: thiodipivaloylmethane, thiodibenzoylmethane and benzoylthioacetone Boris Kamenar, Branka Korpar-olig, Marina Cindri, Maja Penavi and Neven Strukan, pp 2093 DOI:10.1039/DT9920002093

Synthesis and characterization of mono- and tri-nuclear ruthenium complexes of 2,2-bis(diphenylphosphino)-1,1-binaphthyl and their catalytic activity Kazushi Mashima, Takahiro Hino and Hidemasa Takaya, pp 2099 DOI:10.1039/DT9920002099

Synthesis, structure, reactivity and electrochemistry of cis-dioxoruthenium-(VI) and -(V) complexes containing N,N,N,N,3,6-hexamethyl-3,6-diazaoctane-1,8-diamine Chi-Keung Li, Chi-Ming Che, Wai-Fong Tong, Wai-Tong Tang, Kwok-Yin Wong and Ting-Fong Lai, pp 2109 DOI:10.1039/DT9920002109

Dalton communications. Bow-step and twist conformations and stacking interactions in palladium bipyridine and phenanthroline complexes Silvano Geremia, Lucio Randaccio, Giovanni Mestroni and Barbara Milani, pp 2117 DOI:10.1039/DT9920002117

Co-ordination chemistry of mixed pyridine-phenol ligands; the crystal structure of [{NiL(HL)}2][PF6]2·0.5MeCN·0.5Et2O [HL =6-(2-hydroxyphenyl)-2,2-bipyridine] John C. Jeffery and Michael D. Ward, pp 2119 DOI:10.1039/DT9920002119

Synthesis and characterization of the bis-arene sandwich cluster [Ru6C(CO)11(6-C6H3Me3-1,3,5)2] Dario Braga, Fabrizia Grepioni, Sandra Righi, Brian F. G. Johnson, Philip J. Bailey, Paul J. Dyson, Jack Lewis and Marcia Martinelli, pp 2121 DOI:10.1039/DT9920002121

Reactions of chloroform and gem-dichlorocarbons with binuclear rhodium complexes leading to functionalized methylene-bridged compounds Miguel A. Ciriano, Miguel A. Tena and Luis A. Oro, pp 2123 DOI:10.1039/DT9920002123

Unusual magnetic chain of copper(II) ions in [Cu(pepci)Br]n-[PF6]n[pepci =N-(2-pyridylethyl)pyridine-2-carbaldimine] Teófilo Rojo, Roberto Cortés, J. Ignacio Ruiz de Larramendi and Gotzon Madariaga, pp 2125 DOI:10.1039/DT9920002125

Easy access to a new class of anionic cyano-bridged di- and tri-nuclear organotin adducts. Crystal structure of [N(PPh3)2][ClPh3Sn(µ-NC)Ag(CN)] Mauro Carcelli, Corrado Ferrari, Corrado Pelizzi, Giancarlo Pelizzi, Giovanni Predieri and Costantino Solinas, pp 2127 DOI:10.1039/DT9920002127

Facile introduction of 15N into chalcogen-nitrogen systems using 15N-labelled ammonia Vanessa C. Ginn, Paul F. Kelly and J. Derek Woollins, pp 2129 DOI:10.1039/DT9920002129

New pentanuclear carbonyl ruthenium clusters containing a sulfido ligand. Synthesis and structure of [N(PPh3)2]2[Ru5(CO)14S] Ulf Bodensieck, Götz Meister, Helen Stoeckli-Evans and Georg Süss-Fink, pp 2131 DOI:10.1039/DT9920002131

Interplay of phosphido and phosphine ligands in dinuclear ruthenium complexes: implication in the catalytic hydroformylation of ethylene Alain Béguin, Hans-Christian Böttcher, Georg Süss-Fink and Bernhard Walther, pp 2133 DOI:10.1039/DT9920002133

Mechanism of the reaction of phosphate with purple acid phosphatase Manuel A. S. Aquino, Joo-Sang Lim and A. Geoffrey Sykes, pp 2135 DOI:10.1039/DT9920002135

Nuclear magnetic resonance studies of N-H bonds in platinum anticancer complexes: detection of reaction intermediates and hydrogen bonding in guanosine 5-monophosphate adducts of [PtCl2(NH3)2] Susan J. Berners-Price, Tom A. Frenkiel, John D. Ranford and Peter J. Sadler, pp 2137 DOI:10.1039/DT9920002137

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX051

Issue 14

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX053

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP089

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200Fviia

Dalton perspectives. The Post-Buckminsterfullerene graphite horizon H. W. Kroto, pp 2141 DOI:10.1039/DT9920002141

Protein-protein cross-reactions involving plastocyanin, cytochrome f and azurin: self-exchange rate constants and related studies with inorganic complexes D. G. A. Harshani de Silva, Douglas Beoku-Betts, Panayotis Kyritsis, K. Govindaraju, Roy Powls, Nicholas P. Tomkinson and A. Geoffrey Sykes, pp 2145 DOI:10.1039/DT9920002145

Thiosemicarbazones as co-ordinating agents. Part 5. Zinc complexes derived from methyl pyruvate- and pyridoxal-thiosemicarbazone Marisa Belicchi Ferrari, Giovanna Gasparri Fava, Corrado Pelizzi and Pieralberto Tarasconi, pp 2153 DOI:10.1039/DT9920002153

Phosphinobenzyl- and aryl-silanes and their triosmium cluster carbonyl derivatives How Ghee Ang, Betty Chang and Whei Lu Kwik, pp 2161 DOI:10.1039/DT9920002161

Alkyne addition and coupling reactions of [W2(-C5H4R)2X4](X = Cl or Br) Qian Feng, Malcolm L. H. Green and Philip Mountford, pp 2171 DOI:10.1039/DT9920002171

Indium complexes of 1,3-diphenyltriazene John T. Leman, Henry A. Roman and Andrew R. Barron, pp 2183 DOI:10.1039/DT9920002183

Synthesis of alkan-2-ones by dirhodium-mediated four-carbon coupling Glenn J. Sunley, Isabel M. Saez and Peter M. Maitlis, pp 2193 DOI:10.1039/DT9920002193

Co-ordination chemistry of higher oxidation states. Part 40. Spectroscopic, electrochemical and structural studies of cationic osmium-(III) and -(IV) diphosphine and diarsine complexes Neil R. Champness, William Levason, Derek Pletcher, Mark D. Spicer and Michael Webster, pp 2201 DOI:10.1039/DT9920002201

Molecular structures of monomeric gallium trichloride, indium trichloride and lead tetrachloride by gas electron diffraction Arne Haaland, Andreas Hammel, Kjell-Gunnar Martinsen, Janos Tremmel and Hans Vidar Volden, pp 2209 DOI:10.1039/DT9920002209

Effects of temperature and pressure on the addition of 4-ethylpyridine to tricarbonyl(5-dienyl)iron(II) complexes Timothy I. Odiaka and Rudi van Eldik, pp 2215 DOI:10.1039/DT9920002215

Ferrocene derivatives as electron carriers for selective oxidation and reduction reactions through a liquid membrane Giancarlo De Santis, Luigi Fabbrizzi, Maurizio Licchelli, Alberto Monichino and Piersandro Pallavicini, pp 2219 DOI:10.1039/DT9920002219

Synthesis, formation constants and structures of ternary copper(I) complexes with 1,10-phenanthroline and alkynes Megumu Munakata, Susumu Kitagawa, Ichiro Kawada, Masahiko Maekawa and Hisao Shimono, pp 2225 DOI:10.1039/DT9920002225

Pyrazolato-bridged binuclear palladium(II) compounds: synthesis and crystal structure Vimal K. Jain, S. Kannan and Edward R. T. Tiekink, pp 2231 DOI:10.1039/DT9920002231

Molecular materials containig donor and acceptor groups. Synthesis, structure and spectroscopic properties of ferrocenyl Schiff bases Andrew Houlton, Naseralla Jasim, Roger M. G. Roberts, Jack Silver, Desmond Cunningham, Patrick McArdle and Tim Higgins, pp 2235 DOI:10.1039/DT9920002235

Halogenotricarbonylrhenium(I) complexes of 2,6-bis(thioalkyl)- and -(thioaryl)-pyridines, their syntheses and solution stereodynamics Edward W. Abel, David Ellis and Keith G. Orrell, pp 2243 DOI:10.1039/DT9920002243

Cyclometallation reactions of 6-(2-thienyl)-2,2-bipyridine with d8 transiton metal ions Edwin C. Constable, Roland P. G. Henney, Paul R. Raithby and Lynn R. Sousa, pp 2251 DOI:10.1039/DT9920002251

Half-sandwich -cycloheptatri-ene and -enyl derivatives of titanium and zirconium Gary M. Diamond, Malcolm L. H. Green, Philip Mountford and Neil M. Walker, pp 2259 DOI:10.1039/DT9920002259

Electrochemical generation of low-valent molybdenum tri-tertiary phosphine complexes: interactions with monophosphines and molecular nitrogen Jean Talarmin, Talib I. Al-Salih, Christopher J. Pickett, Gerald E. Bossard, T. Adrian George and Colleen M. Duff-Spence, pp 2263 DOI:10.1039/DT9920002263

Complex formation between croconate (C5O52-) and CuIIL [L = 2,2-bipyridine(bipy), 2,2 : 6,2-terpyridine or bis(2-pyridylcarbonyl)amide anion] in dimethyl sulfoxide solution. Crystal structure of [Cu(bipy)(C5O5)(H2O)] Isabel Castro, Jorunn Sletten, Juan Faus and Miguel Julve, pp 2271 DOI:10.1039/DT9920002271

Unusual ribose conformation in a ternary copper(II) 2deoxyribonucleotide complex Noor Shahina Begum and Hattikudur Manohar, pp 2277 DOI:10.1039/DT9920002277

Synthesis of soluble complexes from a tetradentate dithioglyoxime ligand Ilke Gürol, Vefa Ahsen and Özer Bekârolu, pp 2283 DOI:10.1039/DT9920002283

Methylruthenium carbidocarbonyl clusters supported on inorganic oxides: characterization and selective acetaldehyde formation Yasuo Izumi, Tai-Hui Liu, Kiyotaka Asakura, Teiji Chihara, Hiroshi Yamazaki and Yasuhiro Iwasawa, pp 2287 DOI:10.1039/DT9920002287

Thermodynamic and multinuclear magnetic resonance study of dimethyltin(IV) complexes with tridentate ligands in aqueous solution Vincenzo Cucinotta, Antonio Gianguzza, Giuseppe Maccarrone, Lorenzo Pellerito, Roberto Purrello and Enrico Rizzarelli, pp 2299 DOI:10.1039/DT9920002299

Dalton communications. Three different co-ordination geometries in the pentacopper(II) unit of [Cu5(OH)2(H2O)(O2CMe)6(Him)4][ClO4]2(Him = imidazole) Shanmugam Meenakumari and Akhil R. Chakravarty, pp 2305 DOI:10.1039/DT9920002305

Reactivity of co-ordinated S2CPR3 ligands. Crystal and molecular structure of [Mo{3-SC(SMe)PMe3}(CO)2(PMe3)2]I Agustín Galindo, Enrique Gutiérrez-Puebla, Angeles Monge, Miguel Angel Muñoz, Antonio Pastor, Caridad Ruiz and Ernesto Carmona, pp 2307 DOI:10.1039/DT9920002307

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX055

Issue 15

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX057

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP095

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200Fviib

Magnetic exchange and zero-field splitting in the d3[OsVCl6]- ion Philip A. Reynolds, Christopher D. Delfs, Brian N. Figgis, Mark J. Henderson, Boujemaa Moubaraki and Keith S. Murray, pp 2309 DOI:10.1039/DT9920002309

Transition-metal complexes of carcinine, a peptide-type derivative of histamine Tamas Gajda, Bernard Henry and Jean-Jacques Delpuech, pp 2313 DOI:10.1039/DT9920002313

Cyclopalladated compounds derived from ferrocenylimines. Crystal strcuture of [Pd{(5-C5H5)Fe[5-C5H3CHN(CH2)2Ph]}Cl(PEt3)] Concepción López, Joaquim Sales, Xavier Solans and Raschid Zquiak, pp 2321 DOI:10.1039/DT9920002321

Synthesis of 10 Å thiophenolate-capped CdS clusters. Observation of a sharp absorption peak Norman Herron, Andris Suna and Ying Wang, pp 2329 DOI:10.1039/DT9920002329

Synthesis, spectroscopy and electrochemistry of ruthenium(II) complexes of tridentate pyridylpyrazole ligands. Predominance of electronic over steric effects Samiran Mahapatra and Rabindranath Mukherjee, pp 2337 DOI:10.1039/DT9920002337

Homoleptic optically active ditungsten and dimolybdenum alkoxides. The crystal structure of (+)[W2(OC10H19)6] Ivan P. Parkin and Kirsten Folting, pp 2343 DOI:10.1039/DT9920002343

Synthetic, nuclear magnetic resonance and X-ray crystallographic studies of conformations of polyorganophosphorus compounds Jonathan L. Bookham, William McFarlane and Mark Thornton-Pett, pp 2353 DOI:10.1039/DT9920002353

New bidentate ligands PPh2CH2C(But)NNR2(R = H or Me) and PPh2CH2C(But)NNCHPh and their complexes with Group 6 metal carbonyls King Kuok Hii, Sarath D. Perera, Bernard L. Shaw and Mark Thornton-Pett, pp 2361 DOI:10.1039/DT9920002361

Polyfunctional phosphine ligands. Synthesis of 7-diphenylphosphino-2,4-dimethyl-1,8-naphthyridine and its co-ordination properties Maria Grassi, Giovanni De Munno, Francesco Nicolò and Sandra Lo Schiavo, pp 2367 DOI:10.1039/DT9920002367

Synthesis, nuclear magnetic resonance and crystallographic studies of six-co-ordinate bis(bidentate ligand)-dihalogenotin(IV) complexes Caroline I. F. Denekamp, (the late) Dennis F. Evans, Alexandra M. Z. Slawin, David J. Williams, Chih Y. Wong and J. Derek Woollins, pp 2375 DOI:10.1039/DT9920002375

Five-co-ordinate, bis(catecholato) complexes of silicon(IV) (the late) Dennis F. Evans, Alexandra M. Z. Slawin, David J. Williams, Chih Y. Wong and J. Derek Woollins, pp 2383 DOI:10.1039/DT9920002383

Reactivity of binuclear heterobridged iridium complexes with SnCl2 M. Teresa Pinillos, Anabel Elduque, José A. López, Fernando J. Lahoz, Luis A. Oro and Brian E. Mann, pp 2389 DOI:10.1039/DT9920002389

Hydrothermal synthesis and structural characterization of a new vanadyl(IV) arsenate: BaVO(AsO4)(H2AsO4)·H2O J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9920002395

Iron(III) di(2-ethylhexyl)phosphate complexes: ligand control of co-ordination polymerization David R. Whitcomb, Jon A. Bjork and Daryle H. Busch, pp 2399 DOI:10.1039/DT9920002399

Synthesis, reactivity and crystal structures of cobalt complexes [Co2(CO)2(µ-X)(µ-Y)(dppm)2](X = CO, S or SO2; Y = CO or SO2; dppm = Ph2PCH2PPh2) Olga Heyke, Georg Beuter and Ingo-Peter Lorenz, pp 2405 DOI:10.1039/DT9920002405

Structural, spectroscopic and electrochemical consequences of displacing the co-ordinated thioethers from a copper(I) N2S2 complex David A. Nation, Max R. Taylor and Kevin P. Wainwright, pp 2411 DOI:10.1039/DT9920002411

Nickel(II) complexes with tripodal ligands: synthesis, X-ray structural and spectroscopic studies Kaliappa G. Ragunathan and Parimal K. Bharadwaj, pp 2417 DOI:10.1039/DT9920002417

Dalton communications. Desulfurization of thiophenes with ruthenium clusters Alejandro J. Arce, Pilar Arrojo, Antony J. Deeming and Ysaura De Sanctis, pp 2423 DOI:10.1039/DT9920002423

Facile chalcogenide elimination reactions: the crystal structures of [Pt{(Ph2PO)2H}{(Ph2PSeO)2H}]·1.25CHCl3 and [Pt3(Ph2PCH2CH2PPh2)3S2][(Ph2PSO)2H][OH]·0.5CH2Cl2 Mark J. Pilkington, Alexandra M. Z. Slawin, David J. Williams and J. Derek Woollins, pp 2425 DOI:10.1039/DT9920002425

Additions and corrections Suranjan Bhanja Choudhury, Debashis Ray, Animesh Chakravorty, Edward G. Awere, Jack Passmore and Peter S. White, pp 2427 DOI:10.1039/DT9920002427

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX059

Issue 16

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX061

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP101

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT992000000v

The structure of 1,2-diaryl-1,2-bis(dimethylamino)diboron compounds and related species: boron-nitrogen analogues of buta-1,3-dienes Afarin Moezzi, Marilyn M. Olmstead and Philip P. Power, pp 2429 DOI:10.1039/DT9920002429

Synthesis and electrochemistry of [Mo(NO){HB(mppz)3}X2](mppz = 3-p-methoxyphenylpyrazolyl, X = CO or Cl); crystal structure of [Mo(NO){HB(mppz)3}(CO)2] Mecedes Cano, Jose V. Heras, Angeles Monge, Enrique Gutierrez, Christopher J. Jones, Sean L. W. McWhinnie and Jon A. McCleverty, pp 2435 DOI:10.1039/DT9920002435

Absolute uranium-ligand bond-disruption enthalpies of [U(C5H4R)3X] complexes (X = I or H, R = But or SiMe3) Xavier Jemine, Jean Goffart, Jean-Claude Berthet and Michel Ephritikhine, pp 2439 DOI:10.1039/DT9920002439

Intercalation of ferrocenylalkylammonium cations into the layered lattice of VOPO4 Shoji Okuno and Gen-etsu Matsubayashi, pp 2441 DOI:10.1039/DT9920002441

Photoredox properties of luminescent trinuclear copper(I) complexes with a bridging phosphine ligand and crystal structure of [Cu3(dpmp)2(MeCN)2(µ-Cl)2]ClO4[dpmp = bis(diphenylphosphinomethyl)phenylphosphine] Dan Li, Hon-Kay Yip, Chi-Ming Che, Zhong-Yuan Zhou, Thomas C. W. Mak and Shiuh-Tzung Liu, pp 2445 DOI:10.1039/DT9920002445

Structural links between zeolite-type and clathrate hydrate-type materials: synthesis and crystal structure of [NMe4]16[Si8O20][OH]8·116H2O Michael Wiebcke and Dagobert Hoebbel, pp 2451 DOI:10.1039/DT9920002451

Iron-sulfur dimers with benzimidazolate-thiolate, -phenolate or bis(benzimidazolate) terminal chelating ligands. Models for Rieske-type proteins Peter Beardwood and John F. Gibson, pp 2457 DOI:10.1039/DT9920002457

Co-ordination chemistry of 2-phenyl-6-(2-thienyl)pyridine and 2,6-bis(2-thienyl)pyridine; new ambidentate ligands Edwin C. Constable, Roland P. G. Henney and Derek A. Tocher, pp 2467 DOI:10.1039/DT9920002467

Anomalous solution behaviour of isomorphous complexes of zirconium- and hafnium-(IV) (the late) Dennis F. Evans, Gerard W. Griffiths, Caroline O'Mahoney, David J. Williams, Chih Y. Wong and J. Derek Woollins, pp 2475 DOI:10.1039/DT9920002475

Non-arylic diorganothallium derivatives obtained by metallation. Synthesis and isolation of the first diketonylthallium(III) complexes José Vicente, José-Antonio Abad, Gabriel Cara and Juan-Francisco Gutiérrez-Jugo, pp 2481 DOI:10.1039/DT9920002481

Synthesis, characterization and electrical properties of phthalocyanines substituted with 17-membered trioxadiaza macrocycles Gülay Gümüs, Z. Ziya Öztürk, Vefa Ahsen, Ahmet Gül and Özer Bekârolu, pp 2485 DOI:10.1039/DT9920002485

Iron(II) reduction of trans-bis(dimethylglyoximato)halogeno-pyridinecobalt(III) complexes: kinetics and mechanism Arunachalam Dayalan and Venkatapuram R. Vijayaraghavan, pp 2491 DOI:10.1039/DT9920002491

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 114. Ditungsten-digold compounds having two W(CC6H4Me-4)(CO)2(5-C2B9H9Me2) fragments linked by AuP(Ph)2(CH2)n(Ph)2PAu (n= 2-6) groups Justin E. Goldberg, Donald F. Mullica, Eric L. Sappenfield and F. Gordon A. Stone, pp 2495 DOI:10.1039/DT9920002495

Synthesis of PtRe2 and Pt2Re2 heterometallic complexes from the reaction of dirhenium carbonyl compounds with zerovalent complexes of platinum John Powell, John C. Brewer, Giulia Gulia and Jeffery F. Sawyer, pp 2503 DOI:10.1039/DT9920002503

Synthesis and complexation properties of a new tetraazatricarboxylate ligand Carlos F. G. C. Geraldes, Erno Brücher, Sergio Cortes, Seymour H. Koenig and A. Dean Sherry, pp 2517 DOI:10.1039/DT9920002517

Organic-inorganic charge-transfer salts based on the -[Mo8O26]4- isopolyanion: synthesis, properties and X-ray structure Donato Attanasio, Mario Bonamico, Vincenzo Fares and Lorenza Suber, pp 2523 DOI:10.1039/DT9920002523

Dalton communications. A convenient high-yield synthesis of some titanium(IV) oxo cluster compounds: crystal structure of [Ti3Cl3(µ-O2CC6H4Me-p)5(µ-O)(µ3-O)] Alan Bashall, David A. Brown, Mary McPartlin and Malcolm G. H. Wallbridge, pp 2529 DOI:10.1039/DT9920002529

Co-ordination of alkali metals to sulfur-based organometallic ligands: 133Cs and 19F nuclear magnetic resonance studies of Cs[Mo(SC6F5)4(5-C5H5)], the first example of caesium-fluorine spin-spin coupling Alan S. F. Boyd, Jack L. Davidson, Calum H. McIntosh, Pascal C. Leverd, W. Edward Lindsell and Nigel J. Simpson, pp 2531 DOI:10.1039/DT9920002531

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX063

Back matter J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BP105

Issue 17

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX065

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP107

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200F00va

Structural and spectroscopic studies of rhodium-(I) and -(III) nitrato complexes Brian T. Heaton, Jonathan A. Iggo, Chacko Jacob, Helen Blanchard, Michael B. Hursthouse, Indira Ghatak, Mary E. Harman, Richard G. Somerville, William Heggie, Philip R. Page and Ivan Villax, pp 2533 DOI:10.1039/DT9920002533

Complexes with functional phosphines. Part 18. Ruthenium complexes and clusters with ketophosphine or phosphino enolate ligands Pierre Braunstein, Silverio Coco Cea, Michael I. Bruce, Brian W. Skelton and Allan H. White, pp 2539 DOI:10.1039/DT9920002539

Structural and cobalt-59 nuclear magnetic resonance study of heterosite reactivities of alkynes in Ru-Co carbonyl-nitrosyl clusters Pierre Braunstein, Feng Ying Jiao, Jacky Rosé, Pierre Granger, Fadila Balegroune, Odile Bars and Daniel Grandjean, pp 2543 DOI:10.1039/DT9920002543

The quadruple chains of SbO6 octahedra in Sb2Te2O9: an example of low extent of aggregation of pentavalent antimony polyhedra José Antonio Alonso, Alicia Castro, Renée Enjalbert, Jean Galy and Isidoro Rasines, pp 2551 DOI:10.1039/DT9920002551

Copper(I) complexes with 4,6-dimethylpyrimidine-2-thione (Hdmpymt); the crystal and molecular structure of [Cu6(dmpymt)6] Rosa Castro, María L. Durán, José A. García-Vázquez, Jaime Romero, Antonio Sousa, E. E. Castellano and J. Zukerman-Schpector, pp 2559 DOI:10.1039/DT9920002559

[Ru6C(CO)17]: a case of organometallic crystal polymorphism Dario Braga, Fabrizia Grepioni, Paul J. Dyson, Brian F. G. Johnson, Piero Frediani, Mario Bianchi and Franco Piacenti, pp 2565 DOI:10.1039/DT9920002565

Fluxional behaviour of the carbonyls [M3(CO)12](M = Fe, Ru or Os) Brian F. G. Johnson, Yvonne V. Roberts and Emilio Parisini, pp 2573 DOI:10.1039/DT9920002573

1-Oxa-4,8,12-triazacyclotetradecane-4,12-diacetic acid (H2L2): studies on protonation and metal complexation; crystal structure of [CuL2]·5H2O Sílvia Chaves, Rita Delgado, M. Teresa Duarte, J. Armando L. Silva, Vitor Félix and Maria A. A. F. de C. T. Carrondo, pp 2579 DOI:10.1039/DT9920002579

Metal clusters as models of intermediates in organic syntheses. Reactions of the terminal dialkynes NR(CMe2CCH)2(R = H or Me) with [Ru3(CO)12] Ermete Boroni, Mirco Costa, Giovanni Predieri, Enrico Sappa and Antonio Tiripicchio, pp 2585 DOI:10.1039/DT9920002585

Nuclear quadrupole resonance and crystallographic studies of three-co-ordinated copper(I) cations with alkylpyridine ligands Augustin Habiyakare, Edwin A. C. Lucken and Gérald Bernardinelli, pp 2591 DOI:10.1039/DT9920002591

Crystal structure and vibrational spectroscopic studies of the complexes [HgX(NO3)(C5H5N)](X = Cl, Br or I) Lisa-Jane Baker, Graham A. Bowmaker, Nicholas J. Hendrickson, Brian W. Skelton and Allan H. White, pp 2601 DOI:10.1039/DT9920002601

2-Methoxyphenyl phosphite complexes of platinum(0) and nickel(0) Michael J. Baker, Karl N. Harrison, A. Guy Orpen, Paul G. Pringle and Gordon Shaw, pp 2607 DOI:10.1039/DT9920002607

Structural study of 3-oxypropyltin compounds Alexander R. Forrester, Simon J. Garden, R. Alan Howie and James L. Wardell, pp 2615 DOI:10.1039/DT9920002615

Deprotonated amide nitrogen co-ordination to the cadmium(II) ion in ternary 2,2-bipyridine complexes with N-sulfonyl amino acids Anna Bonamartini Corradi, Ledi Menabue, Monica Saladini, Marco Sola and Luigi P. Battaglia, pp 2623 DOI:10.1039/DT9920002623

Protonation of diphosphazane ligand-bridged derivatives of diruthenium nonacarbonyl by protic acids with co-ordinating and non-co-ordinating conjugate bases John S. Field, Raymond J. Haines, Eric Minshall, Clifford N. Sampson, Jörg Sundermeyer and Stephen F. Woollam, pp 2629 DOI:10.1039/DT9920002629

Diene and arene compounds of zirconium and hafnium Gary M. Diamond, Malcolm L. H. Green, Neil M. Walker, Judith A. K. Howard and Sax A. Mason, pp 2641 DOI:10.1039/DT9920002641

Enthalpies and entropies of solution of tris(3-hydroxy-1,2-dimethylpyridin-4-onato)aluminium(III) in methanol-water mixtures from temperature dependences of solubilities John Burgess and Marttand S. Patel, pp 2647 DOI:10.1039/DT9920002647

Dalton communications. The first example of a direct closo to arachno cluster expansion reaction in boron cluster chemistry Zbynk Janouek, Jií Fusek and Bohumil tíbr, pp 2649 DOI:10.1039/DT9920002649

Monohapto co-ordination of poly(tert-butylpyrazolyl)borate ligands in nickel and palladium complexes Enrique Gutiérrez, Sarah A. Hudson, Angeles Monge, M. Carmen Nicasio, Margarita Paneque and Ernesto Carmona, pp 2651 DOI:10.1039/DT9920002651

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX067

Back matter J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BP111

Issue 18

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX069

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP113

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200F00vb

Platinum ethyl complexes with -agostic Pt-H-C bonding Nicholas Carr, Laura Mole, A. Guy Orpen and John L. Spencer, pp 2653 DOI:10.1039/DT9920002653

Synthesis of 1,1-bis(pyrazol-1-ylmethyl)ethene and the structure of a trimethylplatinum(IV) derivative containing an eight-membered chelate ring Allan J. Canty, R. Thomas Honeyman, Brian W. Skelton and Allan H. White, pp 2663 DOI:10.1039/DT9920002663

Copper(I) and silver(I) homometallic complexes of new bis(2,2-bipyridine) ligands Paul D. Beer, John W. Wheeler and Christopher P. Moore, pp 2667 DOI:10.1039/DT9920002667

Synthesis and molecular structures of novel seven-co-ordinated oxo- and nitrido-rhenium(V) complexes of 2,2 : 6,2 : 6,2-quaterpyridine Chi-Ming Che, Yu-Pey Wang, Kap-Sun Yeung, Kwok-Yin Wong and Shie-Ming Peng, pp 2675 DOI:10.1039/DT9920002675

Role of substituents in copper(II) extraction with N,N-bis(8-quinolyl)malonamides Takuji Hirose, Kazuhisa Hiratani, Kazuyuki Kasuga, Kiyoshi Saito, Tohru Koike, Eiichi Kimura, Yoshinobu Nagawa and Hiroshi Nakanishi, pp 2679 DOI:10.1039/DT9920002679

Alkylidyne(carbaborane) complexes of the Group 6 metals. Part 8. Proton-induced alkylidyne ligand coupling at dimetal centres Gregg C. Bruce, Donald F. Mullica, Eric L. Sappenfield and F. Gordon A. Stone, pp 2685 DOI:10.1039/DT9920002685

Synthesis of carbaborane rhodium-platinum complexes: crystal structure of [RhPt(µ-H)(µ-CO)(PEt3)2(PPh3)(5-7,9-C2B9H11)] Justin E. Goldberg, Donald F. Mullica, Eric L. Sappenfield and F. Gordon A. Stone, pp 2693 DOI:10.1039/DT9920002693

Substitution reactions of a heterodimetallic molybdenum-manganese complex Michael J. Doyle, Timothy J. Duckworth, Ljubica Manojlovi-Muir, Martin J. Mays, Paul R. Raithby and Frazer J. Robertson, pp 2703 DOI:10.1039/DT9920002703

Co-ordinative versatility of the dmcpz ligand (Hdmcpz = 3,5-dimethoxycarbonylpyrazole) in copper compounds. Synthesis, characterization and crystal structures of [Cu(dmcpz)2(py)2] and [Cu3(dmcpz)6](py = pyridine) Mariangela Angaroni, G. Attilio Ardizzoia, Girolamo La Monica, Egle Maria Beccalli, Norberto Masciocchi and Massimo Moret, pp 2715 DOI:10.1039/DT9920002715

Synthesis, structural, spectroscopic and magnetic studies of two azido and thiocyanato nickel(II) dinuclear complexes with ferromagnetic interactions Roberto Cortés, J. I. Ruiz de Larramendi, Luis Lezama, Teófilo Rojo, Karmele Urtiaga and M. Isabel Arriortua, pp 2723 DOI:10.1039/DT9920002723

Synthesis, structural and physical studies of tin(IV) complexes with 2-(2-pyridyl)benzimidazole Themistoklis A. Kabanos, Anastasios D. Keramidas, D. Mentzafos, Umberto Russo, Aris Terzis and John M. Tsangaris, pp 2729 DOI:10.1039/DT9920002729

Homo- and hetero-binuclear complexes containing the anion [Rh(C5Me5){PO(OMe)2}2(pyrazolate)]- as ligand. Crystal structure of [(C5Me5)Rh{µ-PO(OMe)2}2(µ-C3H3N2)-Ru(C6H6)]ClO4·CH2Cl2 Mauricio Valderrama, Mario Scotti, Jacqueline Cuevas, Daniel Carmona, M. Pilar Lamata, Josefa Reyes, Fernando J. Lahoz, Enrique Oñate and Luis A. Oro, pp 2735 DOI:10.1039/DT9920002735

A theoretical study of Te64+ and Te4S42+ Paul D. Lyne, D. Michael P. Mingos and Tom Ziegler, pp 2743 DOI:10.1039/DT9920002743

Dalton communications. Different acetate bonding modes and the smallest monoatomic Cu-O-Cu bridge angle in [Cu3(O2CMe)4(H2O)(bipy)3][PF6]2(bipy = 2,2-bipyridine) Shanmugam Meenakumari and Akhil R. Chakravarty, pp 2749 DOI:10.1039/DT9920002749

Microwave-assisted solid-state reactions involving metal powders A. Gavin Whittaker and D. Michael P. Mingos, pp 2751 DOI:10.1039/DT9920002751

Factor F430-like catalysis of [NiL](L = dianion of 6,8,15,17-tetramethyldibenzo[b,i][1,4,8,11]tetraazacyclotetradecine) in the reduction of alkyl halides Toru Arai, Hiroshi Kondo and Shigeyoshi Sakaki, pp 2753 DOI:10.1039/DT9920002753

Ligands designed to impose tetrahedral co-ordination: a convenient route to aminoethyl and aminopropyl pendant arm derivatives of 1,5,9-triazacyclododecane Simon C. Rawle, Adam J. Clarke, Peter Moore and Nathaniel W. Alcock, pp 2755 DOI:10.1039/DT9920002755

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX071

Issue 19

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX073

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP117

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200Fviic

Synthesis and reactivity towards unsaturated organics of the diiron hydride complex [Fe2(CO)4(µ-CO)(µ-H)-(µ-PPh2)(µ-Ph2PCH2PPh2)] Graeme Hogarth and Mark H. Lavender, pp 2759 DOI:10.1039/DT9920002759

Geometrical isomerism in 2-hydroxypyridinate and pyridine-2-thiolate complexes derived from the ruthenium(IV) bis(allyl) dimer [{Ru(3: 3-C10H16)Cl(µ-Cl)}2] Jonathan W. Steed and Derek A. Tocher, pp 2765 DOI:10.1039/DT9920002765

Synthetic, spectroscopic and X-ray crystallographic studies on complexes formed between indium(III) iodide and phosphine ligands Nathaniel W. Alcock, Ian A. Degnan, Oliver W. Howarth and Malcolm G. H. Wallbridge, pp 2775 DOI:10.1039/DT9920002775

Synthesis and molecular structures of some novel anionic diselenides Hans-Ulrich Hummel, Thomas Fischer, Ditmar Gruss, Andrea Franke and Wolfgang Dietzsch, pp 2781 DOI:10.1039/DT9920002781

Equilibrium and structural studies on proton and copper(II) complexes of N-D-gluconylglycine Béla Gyurcsik, Tamás Gajda, László Nagy and Kálmán Burger, pp 2787 DOI:10.1039/DT9920002787

Synthesis and site-selective protonation of MoPt and WPt bimetallic complexes John Powell, Jeffery F. Sawyer and Stuart J. Smith, pp 2793 DOI:10.1039/DT9920002793

Nickel thioether chemistry: syntheses of nickel(II) complexes of tetra- and penta-thia macrocyclic ligands. The single-crystal structures of [Ni([16]aneS4)(OH2)2][BF4]2 and [Ni([15]aneS5)][PF6]2([16]aneS4=1,5,9,13-tetrathiacyclohexadecane, [15]aneS5=1,4,7,10,13-pentathiacyclopentadecane) Alexander J. Blake, Malcolm A. Halcrow and Martin Schröder, pp 2803 DOI:10.1039/DT9920002803

Mononuclear barium and dinuclear copper(II) complexes of a 24-membered bibracchial tetraimine Schiff-base macrocycle derived from N,N-bis(2-aminoethyl)-2-methoxyethylamine Neil A. Bailey, David E. Fenton, Paul C. Hellier, Paul D. Hempstead, Umberto Casellato and P. Alessandro Vigato, pp 2809 DOI:10.1039/DT9920002809

Dipalladium and diplatinum bis(µ-alkanethiolato) complexes with a planar M2S2 ring Mercè Capdevila, William Clegg, Pilar González-Duarte, Bridget Harris, Ignasi Mira, Joan Sola and Ian C. Taylor, pp 2817 DOI:10.1039/DT9920002817

Chemistry and electrochemistry of phosphonium-functionalized isocyanide and derived carbene and indole complexes of Group 6 transition-metal carbonyls Giacomo Facchin, Mirto Mozzon, Rino A. Michelin, Maria T. A. Ribeiro and Armando J. L. Pombeiro, pp 2827 DOI:10.1039/DT9920002827

Spectroscopic and electrical properties of [Fe(C3X5)2]-(X = S or Se) complexes and crystal structures of [NBun4][Fe(C3S5)2] and [Fe(C5Me5)2][Fe(C3S5)2] Satoshi Tanaka and Gen-etsu Matsubayashi, pp 2837 DOI:10.1039/DT9920002837

Synthesis and structure of di-µ-oxo nitridotechnetium(VI) dimers and a monomeric nitridotechnetium(V) mixed-ligand complex John Baldas, John F. Boas, Silvano F. Colmanet and Geoffrey A. Williams, pp 2845 DOI:10.1039/DT9920002845

Metal fragment addition and substitution reactions of [Ru3(CO)9BH5] and [Ru3H(CO)9(B2H5)]: molecular structures of [WRu3(cp)H(CO)11(BH)] and [MoRu3(cp)H3(CO)11](cp =-C5H5) Catherine E. Housecroft, Dorn M. Matthews, Arnold L. Rheingold and Xuejing Song, pp 2855 DOI:10.1039/DT9920002855

Metallaheteroborane chemistry. Part 10. Synthesis and characterisation of closo-structured rhodathiaborane complexes [1-(CO)-1-L-3-L-1,2-RhSB9H8](L = L= PPh3; L = PMe2Ph, L= PMe2Ph or PPh3) Siobhan Coughlan, Trevor R. Spalding, George Ferguson, John F. Gallagher, Alan J. Lough, Xavier L. R. Fontaine, John D. Kennedy and Bohumil Stibr, pp 2865 DOI:10.1039/DT9920002865

A porphyrin bearing tetrahydrothiophene pickets; co-ordination behaviour and electron transfer Francis D'Souza and Varadachari Krishnan, pp 2873 DOI:10.1039/DT9920002873

Intercalation of 2-aminoethylamino-substituted -cyclodextrin by -zirconium phosphate Tsuyoshi Kijima and Kaoru Ohe, pp 2877 DOI:10.1039/DT9920002877

Carbon-13 shielding tensors of Zeise's salt and Zeise's dimer Yining Huang, Denis F. R. Gilson and Ian S. Butler, pp 2881 DOI:10.1039/DT9920002881

Selenium-77 nuclear magnetic resonance identification of seven-membered selenium sulfide ring molecules Pentti Pekonen, Risto S. Laitinen and Yrjö Hiltunen, pp 2885 DOI:10.1039/DT9920002885

Conformation and selectivity towards silver of thiocrown ethers based on Xylyl subunits Joyce C. Lockhart, David P. Mousley, M. N. Stuart Hill, Nicholas P. Tomkinson, Francesc Teixidor, Maria P. Almajano, Luis Escriche, Jaume F. Casabo, Reijo Sillanpää and Raikko Kivekäs, pp 2889 DOI:10.1039/DT9920002889

Azido and dimethylamino derivatives of tellurium hexafluoride Ian B. Gorrell, Clifford J. Ludman and Raymond S. Matthews, pp 2899 DOI:10.1039/DT9920002899

Dalton communications. Effects of catalyst site accessibility on catalysis by rhodium(I) complexes of amphiphilic ligands [Ph2P(CH2)nPMe3]+(n= 2, 3, 6 or 10) tethered to a cation-exchange resin Eric Renaud and Michael C. Baird, pp 2905 DOI:10.1039/DT9920002905

Redox-catalysed isomerisation of [Rh2(µ-CO)(bipy)(Ph2PCH2CH2PPh2)(µ-N1,N3-RNNNR)2]2+ to [Rh2(µ-CO)(bipy)(Ph2PCH2CH2PPh2)(µ-N1,3,N3-RNNNR)(µ-N1,N3-RNNNR)]2+(bipy = 2,2-bipyridyl, R =p-tolyl); an unprecedented bonding mode for the bridging triazenide ligand Neil G. Connelly, Philippa M. Hopkins, A. Guy Orpen, Georgina M. Rosair and Fernando Viguri, pp 2907 DOI:10.1039/DT9920002907

A new phosphine-stabilized sulfido trinuclear cobalt species. Synthesis and structure of [Co3(µ3-S)2(µ-SH)2(µ-PEt2)(PHEt2)6][ClO4]2 Carlo A. Ghilardi, Stefano Midollini, Annabella Orlandini and Giancarlo Scapacci, pp 2909 DOI:10.1039/DT9920002909

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX075

Issue 20

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX077

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP123

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200Fviid

Crystal structures, electrical conductivity and band-structure calculations of three new [cation][Ni(C3S5)2]2 compounds Joost P. Cornelissen, Richard Le Loux, Jacob Jansen, Jaap G. Haasnoot, Jan Reedijk, Ernst Horn, Anthony L. Spek, Brigitte Pomarède, Jean-Pierre Legros and Derk Reefman, pp 2911 DOI:10.1039/DT9920002911

Synthesis and carbonylation reactions of alkyl and phenyl complexes of palladium- and platinum-(II) containing -diketonate type ligands Kingsley J. Cavell, Hong Jin, Brian W. Skelton and Allan H. White, pp 2923 DOI:10.1039/DT9920002923

The reaction of some substituted ortho-benzoquinones with elemental tellurium and with tellurium(II) compounds (the late) Theodore A. Annan, Andrew Ozarowski, Zhigang Tian and Dennis G. Tuck, pp 2931 DOI:10.1039/DT9920002931

Syntheses of iron-containing heterometallic complexes using tridentate phosphine ligands; the crystal structure of [(OC)3Fe{(Ph2P)2CHCH2PPh2}Ru3(CO)9{Ph2PC(CH2)PPh2}] P. Ann Dolby, Marjorie M. Harding, Nagwa Newar and Anthony K. Smith, pp 2939 DOI:10.1039/DT9920002939

Synthesis, structural assessment and reaction chemistry of [NH4]2[U2O4(O2)3(H2O)2]·4H2O containing 2- and :-bonded peroxides Chira R. Bhattacharjee and Mihir K. Chaudhuri, pp 2943 DOI:10.1039/DT9920002943

Ligand reactivity in iron(II) complexes of 4-(4-pyridyl)-2,2 : 6,2-terpyridine Edwin C. Constable and Alexander M. W. Cargill Thompson, pp 2947 DOI:10.1039/DT9920002947

Reactions of phosphine with carbonylbis(triethylphosphine)-rhodium(I) halides and derivatives Amanda Conkie, E. A. V. Ebsworth, Richard A. Mayo and Stephen Moreton, pp 2951 DOI:10.1039/DT9920002951

Synthesis, spectroscopy and magnetism of transition-metal complexes with pyridylmethylphosphonate ligands Justyn Ochocki, Krzysztof Kostka, Bogumila Zurowska, Jerzy Mrozinski, Ewa Galdecka, Zdzislaw Galdecki and Jan Reedijk, pp 2955 DOI:10.1039/DT9920002955

Synthesis, molecular structure, crystal packing, and dynamic behaviour in the solid state of [Fe2(5-C5H5)2(µ-CO)(CO)2{µ-CR(CN)}](R = H or CN) Silvio Aime, Lucia Cordero, Roberto Gobetto, Silvia Bordoni, Luigi Busetto, Valerio Zanotti, Vincenzo G. Albano, Dario Braga and Fabrizia Grepioni, pp 2961 DOI:10.1039/DT9920002961

Synthesis of an N2S-cyclodecane macrocycle and its nickel(II) complex Savitri Chandrasekhar and Alexander McAuley, pp 2967 DOI:10.1039/DT9920002967

Spectroscopic and ligand-field analysis of the spin-orbit interaction between the 1Eg and 3T2g states in bis(1,4,7-triazacyclononane)nickel(II) Robert Stranger, Steven C. Wallis, Lawrence R. Gahan, Colin H. L. Kennard and Karl A. Byriel, pp 2971 DOI:10.1039/DT9920002971

Osmium thioether chemistry: synthesis and single-crystal X-ray structures of [Os([9]aneS3)2][PF6]2·2MeNO2, [Os(4-MeC6H4Pri)([9]aneS3)][BPh4]2·MeNO2 and [OsH(CO)(PPh3)([9]aneS3)]PF6·0.5CH2Cl2([9]aneS3= 1,4,7-trithiacyclononane) Michael N. Bell, Alexander J. Blake, Robert M. Christie, Robert O. Gould, Alan J. Holder, Timothy I. Hyde, Martin Schröder and Lesley J. Yellowlees, pp 2977 DOI:10.1039/DT9920002977

Thallium macrocyclic chemistry: synthesis and crystal structures of [Tl([18]aneN2S4)]PF6 and [Tl([18]aneS6)]PF6([18]aneN2S4= 1,4,10,13-tetrathia-7,16-diazacyclooctadecane, [18]aneS6= 1,4,7,10,13,16-hexathiacyclooctadecane) Alexander J. Blake, Gillian Reid and Martin Schröder, pp 2987 DOI:10.1039/DT9920002987

Correlation of the redox properties and stereochemical features of copper complexes of [18]aneN2S4(1,4,10,13-tetrathia-7,16-diazacyclooctadecane) and its N,N-dimethyl derivative Me2[18]aneN2S4. Crystal structures of [CuII([18]aneN2S4)][ClO4]2·H2O, [CuII(Me2[18]aneN2S4)][PF6]2, [CuI2([18]aneN2S4)]BPh4, [CuI(Me2[18]aneN2S4)]PF6 and [CuI2(Me2[18]aneN2S4)(NCMe)2][PF6]2 Nigel Atkinson, Alexander J. Blake, Michael G. B. Drew, George Forsyth, Robert O. Gould, Aidan J. Lavery, Gillian Reid and Martin Schröder, pp 2993 DOI:10.1039/DT9920002993

N,O versus O,O co-ordination in -iminodiketonato complexes: a reinvestigation Marino Basato, Benedetto Corain and Giuseppe Zanotti, pp 3003 DOI:10.1039/DT9920003003

Synthesis and properties of (±)-trans-(2-alkene)(4-alkyloxy-4-stilbazole)dichloroplatinum: a remarkable family of low-melting metallomesogens Jon P. Rourke, Francesco P. Fanizzi, Duncan W. Bruce, David A. Dunmur and Peter M. Maitlis, pp 3009 DOI:10.1039/DT9920003009

Novel tetra- and hexa-dentate ligands from 6,6-dicyano-2,2-bipyridine Paul N. W. Baxter, Joseph A. Connor, W. Bernd Schweizer and John D. Wallis, pp 3015 DOI:10.1039/DT9920003015

Displacement of ammonia from planar four-co-ordinate platinum(II) complexes by cyanide. The existence of a strong cis-labilising effect by CN- Lucio Cattalini, Francesca Guidi and Martin L. Tobe, pp 3021 DOI:10.1039/DT9920003021

First structurally characterized linkage isomers of two thiocyanatocopper(II) complexes Sacramento Ferrer, Jaap G. Haasnoot, Jan Reedijk, Edgar Müller, Marina Biagini-Cingi, Anna Maria Manotti-Lanfredi, Franco Ugozzoli and Carla Foglia, pp 3029 DOI:10.1039/DT9920003029

Electronic spectra and crystal structures of [NH4]6[XMo9O32]·6H2O (X = NiIV or MnIV) Horst Stratemeier, Michael A. Hitchman, David L. Kepert, Brian W. Skelton, Kathy E. Sugars and Allan H. White, pp 3035 DOI:10.1039/DT9920003035

New triply bridged diiron(III) complexes with [Fe2(µ-O)(µ-X)2]2+ cores [X = MeCO2, PhCO2 or (PhO)2PO2] Samiran Mahapatra, Nishi Gupta and Rabindranath Mukherjee, pp 3041 DOI:10.1039/DT9920003041

Phospholyluranium complexes Philippe Gradoz, Denise Baudry, Michel Ephritikhine, François Nief and François Mathey, pp 3047 DOI:10.1039/DT9920003047

Dalton communications. Preparation, crystal structure and fluxional behaviour of -S-bonded palladium and platinum complexes of the Ph4P2N4S2R-(R = Me or But) anions Tristram Chivers, Mark Edwards, Robert W. Hilts, Auke Meetsma and Johan C. van de Grampel, pp 3053 DOI:10.1039/DT9920003053

Structure of 1-isothiocyanato-2,8,9-trioxa-5-aza-1-germabicyclo[3.3.3]undecane: the first metallatrane with a direct metal-NCS bond Suraj P. Narula, Sajeev Soni, Ravi Shankar and Raj K. Chadha, pp 3055 DOI:10.1039/DT9920003055

Reaction of [Ru5(µ3-CCH2)(µ3-SMe)2(µ-PPh2)2(CO)10] with [Fe2(CO)9]. Formation of a novel µ4-vinylidene ligand Chris J. Adams, Michael I. Bruce, Brian W. Skelton and Allan H. White, pp 3057 DOI:10.1039/DT9920003057

Reduction of [FeIII(tfpp)Cl][tfpp = 5,10,15,20-tetrakis(pentafluorophenyl)porphyrinate] by azaferrocene. The crystal structure of [FeII(tfpp){Fe(C5H5)(C4H4N)}2] Janusz Zakrzewski, Michèle Cesario, Jean Guilhem and Charles Giannotti, pp 3059 DOI:10.1039/DT9920003059

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX079

Issue 21

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX081

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP129

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200F00vc

Electrochemical oxidation of elemental indium in liquid ammonia media (the late) Theodore A. Annan, Jiansheng Gu, Zhigang Tian and Dennis G. Tuck, pp 3061 DOI:10.1039/DT9920003061

Thiolato-technetium complexes. Part 6. Synthesis, characterization, electrochemical properties and crystal structure of [Tc(tdt)(dmpe)2]PF6[tdt = toluene-3,4-dithiolate, dmpe = 1,2-bis(dimethylphosphino)ethane] Takumi Konno, Jon R. Kirchhoff, Mary Jane Heeg, William R. Heineman and Edward Deutsch, pp 3069 DOI:10.1039/DT9920003069

Nuclear magnetic resonance studies on partially deuteriated transition metal-methyl derivatives Malcolm L. H. Green, Andrew K. Hughes, Neil A. Popham, Adam H. H. Stephens and Luet-Lok Wong, pp 3077 DOI:10.1039/DT9920003077

Complexes of ligands derived from 1,8-dihydroxynaphthalene. Synthesis and crystal structures of a palladium and a copper complex Bernard F. Hoskins, Christine J. McKenzie and Richard Robson, pp 3083 DOI:10.1039/DT9920003083

Versatile behaviour of the cyclohexane-1,2-dione bis(semicarbazone) ligand in mono- and di-nuclear metal complexes Luigi P. Battaglia, Pier Giovanni Berzolla, Anna Bonamartini Corradi, Corrado Pelizzi, Giorgio Pelosi and Costantino Solinas, pp 3089 DOI:10.1039/DT9920003089

A general route to N(SCl)2+ and SNS+ salts Bryan Ayres, Arthur J. Banister, Philip D. Coates, Michael I. Hansford, Jeremy M. Rawson, Clifton E. F. Rickard, Michael B. Hursthouse, K. M. Abdul Malik and Majid Motevalli, pp 3097 DOI:10.1039/DT9920003097

-Tetraphosphorus trichalcogenide diiodide compounds containing both sulfur and selenium Roger Blachnik, Peter Loennecke and Bruce W. Tattershall, pp 3105 DOI:10.1039/DT9920003105

The chemistry of copper(I)-diketonate compounds. Part 4. Syntheses and characterization of CuXLn(X =-diketonate or Cl, L = PMe3, n= 2 or 4; L = PEt3, n= 2) Kai-Ming Chi, Janos Farkas, Mark J. Hampden-Smith, Toivo T. Kodas and Eileen N. Duesler, pp 3111 DOI:10.1039/DT9920003111

Doubly cyclopalladated complexes of N,N,N,N-tetraethylbenzene-1,3-bis(methylamine) Sukla Chakladar, Parimal Paul, Alok K. Mukherjee, Sujit K. Dutta, Kausik K. Nanda, Debi Podder and Kamalaksha Nag, pp 3119 DOI:10.1039/DT9920003119

Synthesis and 15N nuclear magnetic resonance shift tensors of bent nitrosyl complexes with N-substituted salicylideneiminate coligands; the shift tensor as a criterion of MNO bond angle Christopher J. Groombridge, Leslie F. Larkworthy, Agathe Marécaux, David C. Povey, Gallienus W. Smith and Joan Mason, pp 3125 DOI:10.1039/DT9920003125

Complex formation between 1,1-(1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-7,16-dicarbonyl)ferrocene and yttrium perchlorate C. Dennis Hall, James H. R. Tucker, Andrew Sheridan, Sunny Y. F. Chu and David J. Williams, pp 3133 DOI:10.1039/DT9920003133

Helical bis[2-(ferrocenylmethyleneamino)benzenethiolato] metal(II) complexes (M = Ni, Zn or Pd) and a related mercury(II) complex Tatsuya Kawamoto and Yoshihiko Kushi, pp 3137 DOI:10.1039/DT9920003137

Synthesis, reactivity, structural studies and magnetic properties of 4-amino-1,4-dihydro-3-methyl-1,2,4-triazole-5-thione copper complexes Marina Biagini Cingi, Francesco Bigoli, Maurizio Lanfranchi, Maria Angela Pellinghelli, Annabella Vera and Enrico Buluggiu, pp 3145 DOI:10.1039/DT9920003145

Kinetics of alkene oxidation by cationic trans-dioxoruthenium(VI) complexes. Effect of driving force on rate constants Chi-Ming Che, Chi-Keung Li, Wai-Tong Tang and Wing-Yiu Yu, pp 3153 DOI:10.1039/DT9920003153

Dalton communications. The first undecaruthenium hydrido carbonyl anion; synthesis and structural characterisation of [Ru11H(CO)27]3- Philip J. Bailey, Michael A. Beswick, Brian F. G. Johnson, Jack Lewis, Paul R. Raithby and M. Carmen Ramirez de Arellano, pp 3159 DOI:10.1039/DT9920003159

Contrasting pathways for the reactions of the electron-acceptor ligands tetrachloro-1,2- and -1,4-benzoquinone with the diruthenium diphosphazane-bridged derivatives [Ru2(µ-CO)(CO)4{µ-(RO)2PN(Et)P(OR)2}2](R = Me or Pri) John S. Field, Raymond J. Haines, Jörg Sundermeyer, Mark W. Stewart and Stephen F. Woollam, pp 3161 DOI:10.1039/DT9920003161

Additions and corrections Marisa Belicchi Ferrari, Giovanna Gasparri Fava, Corrado Pelizzi and Pieralberto Tarasconi, pp 3163 DOI:10.1039/DT9920003163

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX083

Issue 22

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX085

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP133

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200F00vd

Bis(diethyl sulfide)bis(2,4,6-trimethylphenyl)iridium(II) and related compounds Andreas A. Danopoulos, Geoffrey Wilkinson, Bilquis Hussain-Bates and Michael B. Hursthouse, pp 3165 DOI:10.1039/DT9920003165

Preparation and characterisation of some dimeric 2-diyne complexes of cobalt Catherine E. Housecroft, Brian F. G. Johnson, Muhammad S. Khan, Jack Lewis, Paul R. Raithby, Michael E. Robson and Della A. Wilkinson, pp 3171 DOI:10.1039/DT9920003171

Dimethylaluminium alkoxides: a physico-chemical investigation Jason H. Rogers, Allen W. Apblett, William M. Cleaver, Andrew N. Tyler and Andrew R. Barron, pp 3179 DOI:10.1039/DT9920003179

Solid-state and solution studies of tungsten(VI) organoimidoalkoxides William Clegg, R. John Errington and Carl Redshaw, pp 3189 DOI:10.1039/DT9920003189

Complexes of the platinum metals. Part 41. Oxidative-substitution reactions at ruthenium(II) and osmium(II) involving N,N-diphenylamidinate ligands Terry Clark, Stephen D. Robinson and Derek A. Tocher, pp 3199 DOI:10.1039/DT9920003199

Reactivity of iron(II) non-classical hydrides with alkynes Gabriele Albertin, Stefano Antoniutti, Elena Del Ministro and Emilio Bordignon, pp 3203 DOI:10.1039/DT9920003203

Two different (oxalato)(bipyridine)copper(II) complexes in one single crystal. Crystal structures and magnetic properties of [Cu2(bipy)2(H2O)2(C2O4)]X2·[Cu(bipy)(C2O4)](X = NO3-, BF4- or ClO4-) Alain Gleizes, Miguel Julve, Michel Verdaguer, José Antonio Real, Juan Faus and Xavier Solans, pp 3209 DOI:10.1039/DT9920003209

Structures and properties of (L-prolinato)copper(II) complexes prepared from different solvents Yasuhiko Yukawa, pp 3217 DOI:10.1039/DT9920003217

Structural considerations of terdentate ligands: crystal structures of 2,2 : 6,2-terpyridine and 2,6-bis(pyrazol-1-yl)pyridine Carol A. Bessel, Ronald F. See, Donald L. Jameson, Melvyn Rowen Churchill and Kenneth J. Takeuchi, pp 3223 DOI:10.1039/DT9920003223

Triazacyclane-based trithiols and their use in the preparation of site-differentiated iron-sulfur clusters David J. Evans, Gabriel Garcia, G. Jeffery Leigh, Maurice S. Newton and M. Dolores Santana, pp 3229 DOI:10.1039/DT9920003229

Cascade complexes of an octaaza cryptand: co-ordinated azide with linear M-NNN-M geometry Michael G. B. Drew, Josie Hunter, Debbie J. Marrs, Jane Nelson and Charlie Harding, pp 3235 DOI:10.1039/DT9920003235

Co-ordination chemistry of higher oxidation states. Part 41. Synthesis, spectroscopic and electrochemical studies of cationic ruthenium(III) Group 15 and 16 donor ligand complexes. Structure of trans-[Ru{C6F4(AsMe2)2-o}2Br2]BF4 Neil R. Champness, William Levason, Derek Pletcher and Michael Webster, pp 3243 DOI:10.1039/DT9920003243

Redox-chemical core manipulation of [Os18Hg3C2(CO)42]2-; synthesis and crystal structure of the cluster [Os18Hg2C2(CO)42]4- Lutz H. Gade, Brian F. G. Johnson, Jack Lewis, Gráinne Conole and Mary McPartlin, pp 3249 DOI:10.1039/DT9920003249

An iron(II) complex with a tetradentate peptide ligand, cis-C6H10(CO-Cys-Pro-Leu-Cys-OMe)2-1,2, as a model of reduced rubredoxin Wei-Yin Sun, Atsushi Kajiwara, Norikazu Ueyama and Akira Nakamura, pp 3255 DOI:10.1039/DT9920003255

Copper(II) complexes with anti-inflammatory drugs as ligands. Solution behaviour and electrochemistry of mono- and bi-nuclear complexes Catherine Dendrinou-Samara, Panagiotis D. Jannakoudakis, Dimitris P. Kessissoglou, George E. Manoussakis, Dimitris Mentzafos and Aris Terzis, pp 3259 DOI:10.1039/DT9920003259

Structure-stability relationships of 3-hydroxypyridin-4-one complexes Gaoyi Xiao, Dick van der Helm, Robert C. Hider and Paul S. Dobbin, pp 3265 DOI:10.1039/DT9920003265

Bis(1,2,6,7-tetracyano-3,5-dihydro-3,5-diiminopyrrolizinido) complexes of iron and cobalt: properties, crystal structures and interaction with dioxygen Mario Bonamico, Vincenzo Fares, Alberto Flamini and Nicola Poli, pp 3273 DOI:10.1039/DT9920003273

Dalton communications. Synthesis and crystal structure of [W2Se2(PPh2Me)2(SePh)4]: a complex having two co-ordinatively unsaturated metal centres P. Michael Boorman, Heinz-Bernhard Kraatz and Masood Parvez, pp 3281 DOI:10.1039/DT9920003281

A redox-switchable ligand for which the binding ability is enhanced by oxidation of its ferrocene unit Giancarlo De Santis, Luigi Fabbrizzi, Maurizio Licchelli, Piersandro Pallavicini and Angelo Perotti, pp 3283 DOI:10.1039/DT9920003283

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX087

Issue 23

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX089

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP137

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200Fviie

Electrochemically controlled dissociation of dioxygen from a µ-peroxo cobalt(III) dimer James H. Cameron and Steven C. Turner, pp 3285 DOI:10.1039/DT9920003285

Macrocyclic ligands with pendant phosphonic acid groups William Clegg, Peter B. Iveson and Joyce C. Lockhart, pp 3291 DOI:10.1039/DT9920003291

Synthesis and electrochemistry of [{Mo(NO)[HB(3,5-Me2C3HN2)3]Cl}2{1,2-(NH)2C6H4}] and the crystal structure of [{Mo(NO)[HB(3,5-Me2C3HN2)3]I}2{1,2-(NH)2C6H4}] Najat J. AlObaidi, Sean L. W. McWhinnie, Thomas A. Hamor, Christopher J. Jones and Jon A. McCleverty, pp 3299 DOI:10.1039/DT9920003299

Addition of cyclopropenylium and tropylium ions to cyclooctatetraene-cobalt and -rhodium cyclopentadienyl complexes Neil G. Connelly, Philippa M. Hopkins, A. Guy Orpen and Jeremy Slater, pp 3303 DOI:10.1039/DT9920003303

Synthesis and characterisation of chlorofluoroantimonates(V) Michael F. A. Dove and Jeremy C. P. Sanders, pp 3311 DOI:10.1039/DT9920003311

Interaction of carboxylate inhibitors with the active site of nickel(II) carboxypeptidase A José-María Moratal, Josep Castells, Antonio Donaire, Jesús Salgado and Hermas R. Jiménez, pp 3317 DOI:10.1039/DT9920003317

Photoinduced C-C bond formation from alkyl halides catalysed by luminescent dinuclear gold(I) and copper(I) complexes Dan Li, Chi-Ming Che, Hoi-Lun Kwong and Vivian Wing-Wah Yam, pp 3325 DOI:10.1039/DT9920003325

Charge-density distribution of heptasulfur imide (S7NH) Chih-Chieh Wang, Ying-Ying Hong, Chun-Her Ueng and Yu Wang, pp 3331 DOI:10.1039/DT9920003331

The co-ordination chemistry of mixed pyridine-phenol and phenanthroline-phenol ligands; effects of -stacking interactions and ligand rigidity on complex structures Bridget M. Holligan, John C. Jeffery and Michael D. Ward, pp 3337 DOI:10.1039/DT9920003337

The co-ordination chemistry of mixed pyridine-phenol ligands; spectroscopic and redox properties of mononuclear ruthenium complexes with (pyridine)6-x(phenolate)x donor sets (x= 1 or 2) Bridget M. Holligan, John C. Jeffery, M. Katharine Norgett, Erik Schatz and Michael D. Ward, pp 3345 DOI:10.1039/DT9920003345

Co-ordination chemistry of mixed pyridine-phenol and phenanthroline-phenol ligands; a variable-temperature electron paramagnetic resonance and magnetic susceptibility study on two binuclear copper(II) complexes with Cu2(µ-O)2(µ-1,3,-O2CMe) cores John P. Maher, Philip H. Rieger, Peter Thornton and Michael D. Ward, pp 3353 DOI:10.1039/DT9920003353

Copper(I) and gold(I) complexes with cis-bis(diphenylphosphino)ethylene. Crystal structures and 31P cross-polarization magic angle spinning nuclear magnetic resonance studies Susan J. Berners-Price, Lynda A. Colquhoun, Peter C. Healy, Karl A. Byriel and John V. Hanna, pp 3357 DOI:10.1039/DT9920003357

Synthesis and structural characterization of polynuclear complexes containing the eight-electron donor bis(diphenylphosphino)methanediide ligand Eduardo J. Fernández, M. Concepción Gimeno, Peter G. Jones, Antonio Laguna, Mariano Laguna and José M. López-de-Luzuriaga, pp 3365 DOI:10.1039/DT9920003365

Rhodium iminophosphine complexes as efficacious oxygen carriers. Crystal structure of a representative dioxygen adduct Carlo A. Ghilardi, Stefano Midollini, Simonetta Moneti, Annabella Orlandini and Giancarlo Scapacci, pp 3371 DOI:10.1039/DT9920003371

Structure, spectra and redox behaviour of copper(II) complexes of bis(benzimidazolyl)diamine ligands Thangarasu Pandiyan, Mallayan Palaniandavar, M. Lakshminarayanan and Hattikudur Manohar, pp 3377 DOI:10.1039/DT9920003377

Alumina/chloroform-promoted conversion of the ruthenacycles [Ru(CH2CMe2CH2)(6-C6Me6)(PRPh2)](R = Me or Ph) into the chloro orthometallated derivatives [Ru(C6H4PRPh)Cl(6-C6Me6)] Victor Adovasio, Pietro Diversi, Giovanni Ingrosso, Antonio Lucherini, Fabio Marchetti and Mario Nardelli, pp 3385 DOI:10.1039/DT9920003385

Dalton communications. Synthesis of the first organometallic monosubstituted octanuclear silasesquioxane Gion Calzaferri and Roman Imhof, pp 3391 DOI:10.1039/DT9920003391

Molecular GaH2Cl: matrix infrared spectrum and ab initio investigations Ralf Köppe and Hansgeorg Schnöckel, pp 3393 DOI:10.1039/DT9920003393

Preparation and X-ray structure of [Ge{N(SiMe3)2}2(µ-O)]2, a rare 1,3-cyclodigermoxane David Ellis, Peter B. Hitchcock and Michael F. Lappert, pp 3397 DOI:10.1039/DT9920003397

A new co-ordination mode for a tetrathia crown ether. Crystal structure of [MoBr(CO)2(Me8[16]aneS4)][MoBr3(CO)4]·C6H14(Me8[16]aneS4= 3,3,7,7,11,11,15,15-octamethyl-1,5,9,13-tetrathiacyclohexadecane) Marcus C. Durrant, David L. Hughes, Raymond L. Richards, Paul K. Baker and Sharman D. Harris, pp 3399 DOI:10.1039/DT9920003399

Additions and corrections Smaïl Triki, Lahcène Ouahab, Jean-François Halet, Octavio Peña, Jean Padiou, Daniel Grandjean, Chantal Garrigou-Lagrange, Pierre Delhaes, Samiran Mahapatra, Nishi Gupta and Rabindranath Mukherjee, pp 3401 DOI:10.1039/DT9920003401

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX091

Issue 24

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FX093

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200FP143

Conference diary J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200Fviif

Use of Michael additions to (Ph2P)2CCH2 complexes to prepare thiophene- and pyrrole-functionalised metal-phosphine complexes Geoff King, Simon J. Higgins and Andrew Hopton, pp 3403 DOI:10.1039/DT9920003403

The chemistry of the selenium-containing cluster [Ru4(µ4-Se)2(CO)8(µ-CO)3]: crystal structures of [Ru3(µ3-Se)2(CO)7(Ph2PC2PPh2)], [Ru4(µ4-Se)2(CO)10(SbPh3)] and [Ru3(µ3-Se)2(CO)9] Teresa M. Layer, Jack Lewis, Avelino Martín, Paul R. Raithby and Wing-Tak Wong, pp 3411 DOI:10.1039/DT9920003411

Electronic and electron paramagnetic resonance spectra and metal-ligand bonding of VF4 Horst Stratemeier, Michael A. Hitchman, Robert J. Deeth and Rudolf Hoppe, pp 3419 DOI:10.1039/DT9920003419

Synthesis and characterization of L-tartrato chromate(III) complexes with acetylacetonate ions Manabu Nakahanada, Takashi Fujihara, Norio Koine and Sumio Kaizaki, pp 3423 DOI:10.1039/DT9920003423

Nickel thioether chemistry: a re-examination of the electrochemistry of [Ni([9]aneS3)2]2+. The single-crystal X-ray structure of a nickel(III) thioether complex, [NiIII([9]aneS3)2][H5O2]3[ClO4]6([9]aneS3= 1,4,7-trithiacyclononane) Alexander J. Blake, Robert O. Gould, Malcolm A. Halcrow, Alan J. Holder, Timothy I. Hyde and Martin Schröder, pp 3427 DOI:10.1039/DT9920003427

A 1H nuclear magnetic resonance study of the mechanism of the reaction between cis-dichlorobis(dimethyl sulfoxide)-platinum(II) and nitrogen donors Giuliano Annibale, Massimiliano Bonivento, Lucio Cattalini and Martin L. Tobe, pp 3433 DOI:10.1039/DT9920003433

Synthesis and characterisation of sulfur-rich manganese(III) and vanadium(IV) complexes containing dithioacid ligands Sujit Baran Kumar and Muktimoy Chaudhury, pp 3439 DOI:10.1039/DT9920003439

Preparation and fluxional behaviour of 3-methylbenzyl platinum and palladium complexes Louise E. Crascall and John L. Spencer, pp 3445 DOI:10.1039/DT9920003445

Reactions of co-ordinated ligands. Part 54. Synthesis of (1,2,3-)-trans-butadienyl complexes by deprotonation or desilylation of cationic molybdenum 1,3-diene complexes; formation of 4-vinylketene complexes and crystal structures of [Mo{(1,2,3-)-trans-CH2CHCCH2}(CO)2(-C5Me5)], [Mo{3-CH2CC(Me)CH2CO}(CO)2(-C5Me5)] and [Mol{4-CH2CHC(Me)CO}(CO)(-C5Me5)] Stephen A. Benyunes, Robert J. Deeth, Arno Fries, Michael Green, Mary McPartlin and Caroline B. M. Nation, pp 3453 DOI:10.1039/DT9920003453

Multinucleating 2,2 : 6,2-terpyridine ligands as building blocks for the assembly of co-ordination polymers and oligomers Edwin C. Constable and Alexander M. W. Cargill Thompson, pp 3467 DOI:10.1039/DT9920003467

Homoleptic mesityls of iridium(III,IV,V) and ruthenium(IV,V) Robyn S. Hay-Motherwell, Geoffrey Wilkinson, Bilquis Hussain-Bates and Michael B. Hursthouse, pp 3477 DOI:10.1039/DT9920003477

Studies on transition-metal nitrido and oxo complexes. Part 14. Carboxylato oxo-osmium(VI) and -ruthenium(VI) complexes and their reactions William P. Griffith and Jennifer M. Jolliffe, pp 3483 DOI:10.1039/DT9920003483

Transition-metal periodato complexes. Their preparations and properties as catalytic oxidants, and X-ray crystal structure of Na4K[Au{IO5(OH)}2]·KOH·15H2O Andrew C. Dengel, Ahmed M. El-Hendawy, William P. Griffith, Sahar I. Mostafa and David J. Williams, pp 3489 DOI:10.1039/DT9920003489

Nuclear magnetic resonance investigations of configurational non-rigidity in dinuclear platinum(IV) complexes. Part 8. Fluxional properties of complexes [(PtXMe3)2(SCH2SCH2SCHMe)](X = Cl, Br or I) Edward W. Abel, David Ellis, Keith G. Orrell and Vladimir ik, pp 3497 DOI:10.1039/DT9920003497

Sterically hindered organotin compounds. Part 3. The reaction between di-tert-butyltin oxide and organoboronic acids Paul Brown, Mary F. Mahon and Kieran C. Molloy, pp 3503 DOI:10.1039/DT9920003503

Studies in Werner clathrates. Part 14. Analysis of the properties selected for by the host bis(isothiocyanato)-tetra(4-vinylpyridine)nickel(II) Laurence Lavelle, pp 3511 DOI:10.1039/DT9920003511

Anionic, four-co-ordinate, ten-electron bismuth complexes: aspects of synthesis, structure and bonding William Clegg, Neville A. Compton, R. John Errington, George A. Fisher, David C. R. Hockless, Nicholas C. Norman, A. Guy Orpen and Susan E. Stratford, pp 3515 DOI:10.1039/DT9920003515

Synthetic and structural studies on organoruthenium-indium complexes Joseph C. Calabrese, Lucy M. Clarkson, Todd B. Marder, Nicholas C. Norman and Nicholas J. Taylor, pp 3525 DOI:10.1039/DT9920003525

Reactions of the molybdenum bis(alkyne) complex [Mo(SC6F5)(F3CCCCF3)2(5-C5H5)] with alkynes leading to isomeric and fluxional 4-butadienyl complexes Naz M. Agh-Atabay and Jack L. Davidson, pp 3531 DOI:10.1039/DT9920003531

The size and shape of molecular ions and their relevance to the packing of the hexafluorophosphate salts Andrew L. Rohl and D. Michael P. Mingos, pp 3541 DOI:10.1039/DT9920003541

An X-ray, spectroscopic and semiempirical quantum-mechanical study on complexes of thiones and selones with molecular diiodine Franco Cristiani, Francesco Demartin, Francesco A. Devillanova, Franceso Isaia, Giuseppe Saba and Gaetano Verani, pp 3553 DOI:10.1039/DT9920003553

Dalton communications. Formation and crystal structure of the pyridine (py) adduct of trimeric gallium sulfide chloride, (GaSCl·py)3 Joji Ohshita, Annette Schier and Hubert Schmidbaur, pp 3561 DOI:10.1039/DT9920003561

An unusual axial co-ordination of phenolate oxygen to copper(II): crystal structure of chloro{2-[bis(2-pyridylmethyl)aminomethyl]-4-nitrophenolato}copper(II) Uma Rajendran, Rathinam Viswanathan, Mallayan Palaniandavar and M. Lakshminarayanan, pp 3563 DOI:10.1039/DT9920003563

Catalytic epoxidation of alkenes with molecular dioxygen activated by CuXn-ascorbic acid systems (X = F, Cl, Br or I; n= 1 or 2) Toru Arai, Eiji Komiya and Shigeyoshi Sakaki, pp 3565 DOI:10.1039/DT9920003565

Additions and corrections Brian T. Heaton, Jonathan A. Iggo, Chacko Jacob, Helen Blanchard, Michael B. Hursthouse, Indira Ghatak, Mary E. Harman, Richard G. Somerville, William Heggie, Philip R. Page, Ivan Villax, P. Ann Dolby, Marjorie M. Harding, Nagwa Newar and Anthony K. Smith, pp 3567 DOI:10.1039/DT9920003567

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BX095

Index pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT99200BA001