1987 year
Main Index

Issue 1

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FX001

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FP001

Instructions for authors (1987) J. Chem. Soc., Dalton Trans. DOI:10.1039/DT987000000v

IUPAC publications on nomenclature and symbolism J. Chem. Soc., Dalton Trans. DOI:10.1039/DT9870000xxi

Co-ordination abilities of thioamide analogues of amino acids and peptides. Copper(II) and nickel (II) complexes Teresa Kowalik, Henryk Kozowski, Imre Sóvágó, Katalin Varnagy, Godfryd Kupryszewski and Krzysztof Rolka, pp 1 DOI:10.1039/DT9870000001

The preparation and co-ordination chemistry of 2,2 : 6,2-terpyridine macrocycles. Part 5. Unsubstituted fifteen-membered-ring macrocycles containing 2,2: 6,2-terpyridine Edwin C. Constable, Jeremy M. Holmes and Roderick C. S. McQueen, pp 5 DOI:10.1039/DT9870000005

Synthesis of [Mo(-C5H4Pri)(PR3)2H3][R3= Me3 or Me2Ph), [Mo(-C5H4Pri)(Pri2PCH2CH2PPri2)H3], and analogues and their ability to catalyse the photoinduced hydrogen-deuterium exchange of carbon-hydrogen bonds; crystal structure of [{Mo(-C5H4Pri)(µ-Cl)2}2] Peter D. Grebenik, Malcolm L. H. Green, Alejandro Izquierdo, Victor S. B. Mtetwa and K. Prout, pp 9 DOI:10.1039/DT9870000009

Isomers in fac-[ReBr(CO)3( Lc)2](Lc=cis-3,4-dihydro-2,3,4,5-tetraphenyl-2H-1,2,3-diazaphosphole) arising from chirality of phosphorus ligands: separation and X-ray structural studies Graziano Baccolini, Luigi Busetto, Antonella Roncarolo, Vincenzo Giulio Albano and Franceso Demartin, pp 21 DOI:10.1039/DT9870000021

Phenyl complexes of ruthenium(II): competition between carbonyl substitution and formation of benzoyl complexes, and an X-ray study of a benzoyl complex Zbigniew Dauter, Roger J. Mawby, Colin D. Reynolds, David R. Saunders and Lars K. Hansen, pp 27 DOI:10.1039/DT9870000027

Linear-chain platinum(II) dithiocarboxylates: crystal structure of tetrakis(phenyldithioacetato)diplatinum(II) Carlo Bellitto, Mario Bonamico, Giulia Dessy, Vincenzo Fares and Alberto Flamini, pp 35 DOI:10.1039/DT9870000035

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 49. Synthesis of mixed-metal complexes with bonds between Cr, Mo or W and Co, Rh, Ir or Re; crystal structure of [CrReRh2(µ3CC6H4Me-4)-(µ-CO)(CO)9(-C9H7)2] J. Antonio Abad, Esther Delgado, M. Esther Garcia, Markus J. Grosse-Ophoff, Ian J. Hart, John C. Jeffery, Mark S. Simmons and F. Gordon A. Stone, pp 41 DOI:10.1039/DT9870000041

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 50. Synthesis and crystal structures of the complexes [RuW3(µ-CO)(µ3--CO)(µ-CPh)2(µ3-CPh)(CO)2(-C5H5)3] and [RuW3(µ-CO)(µ3--CO){µ-C(Ph)C(O)}(µ-CPh)(µ3-CPh)(CO)(PMePh2)(-C5H5)3] Louis J. Farrugia, John C. Jeffery, Christine Marsden, Paul Sherwood and F. Gordon A. Stone, pp 51 DOI:10.1039/DT9870000051

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 51. Alkylidyne(carbaborane)tungsten-gold and -rhodium complexes; crystal structures of [AuW(µ-CR)(CO)2(PPh3)(-5C2B9H9Me2)], [RhW(µ-CR)(CO)2(PPh3)2(5-C2B9H9Me2)], and (RhW[µ-CR)(CO)2(PPh3)2{5-C2B9(C7H9)H8Me2}](R = C6H4Me-4) Michael Green, Judith A. K. Howard, Alun P. James, Christine M. Nunn and F. Gordon A. Stone, pp 61 DOI:10.1039/DT9870000061

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 52. Synthesis and reactions of the compounds [RuW(µ-CR)(CO)3(-C5H5)(5-C2B9H9Me2)](R = C6H4Me-4 or Me); crystal structures of [RuW(µ-CC6H4Me-4)(CO)3(-C5H5)(5-C2B9H9Me2)] and [N(PPh3)2][RuW(µ-CC6H4Me-4)(µ-,5-C2B9H8Me2)(CO)3(-C5H5)] Michael Green, Judith A. K. Howard, Alasdair N. de M. Jelfs, Owen Johnson and F. Gordon A. Stone, pp 73 DOI:10.1039/DT9870000073

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 53. Alkylidyne(carbaborane)dimetal complexes with tungsten-molybdenum and -tungsten bonds; crystal structures of the compounds [MW(µ-CC6H4Me-4)(CO)3(5-C9H7)(5-C2B9-H9Me2)][M = Mo (two isomers) or W] Michael Green, Judith A. K. Howard, Alun P. James, Alasdair N. de M. Jelfs, Christine M. Nunn and F. Gordon A. Stone, pp 81 DOI:10.1039/DT9870000081

High-yield syntheses of sulphido triruthenium carbonyl cluster complexes containing bis(diphenylphosphino)methane Patricia Fompeyrine, Guy Lavigne and Jean-Jacques Bonnet, pp 91 DOI:10.1039/DT9870000091

Magnetic and electrochemical studies on the series [CrnFe3-n(µ3-O)(gly)6(H2O)3][NO3]7·xH2O (gly = glycine; n= 0,1,2, or 3) and on the mixed-valence complex [FeIIFeIII2(µ3-O)(gly)6(H2O)3]Cl6 Brian P. Straughan, Oi M. Lam and Alan Earnshaw, pp 97 DOI:10.1039/DT9870000097

Organotin biocides. Part 8. The crystal structure of triphenyltin formate and a comparative variable-temperature tin-119 Mössbauer spectroscopic study of organotin formates and acetates Kieran C. Molloy, Kieran Quill and Ian W. Nowell, pp 101 DOI:10.1039/DT9870000101

Application of ultraviolet photoelectron spectroscopy to molecular properties. Part 27. Stereochemistry of ligand exchange reactions of titanocene derivatives Claude Guimon, Geneviève Pfister-Guillouzo, Jack Besançon and Philippe Meunier, pp 107 DOI:10.1039/DT9870000107

The single-crystal electron spin resonance spectrum of oxobis(2-methylquinolin-8-olato)vanadium(IV) as a pure compound and diluted in chlorobis(2-methylquinolin-8-olato)gallium(III) David Collison, Brendan Gahan and Frank E. Mabbs, pp 111 DOI:10.1039/DT9870000111

Synthesis and properties of heterotrimetallic complexes containing M-Pt-Hg (M = Mo, W, Fe, Mn, or Co) arrays Josep Calvet, Oriol Rossell, Miquel Seco and Pierre Braunstein, pp 119 DOI:10.1039/DT9870000119

Binucleating N6 24- and 26-membered macrocyclic ligands. Part 1. Dilead complexes: X-ray crystal structure determination of a macrocyclic dilead complex containing nitrogen-only bridging thiocyanate Brian P. Murphy, Jane Nelson, S. Martin Nelson, Michael G. B. Drew and Paul C. Yates, pp 123 DOI:10.1039/DT9870000123

The first authenticated example of geometrical isomers in organotin(IV) co-ordination chemistry. The crystal and molecular structures of octahedral cis- and trans-SnR2 isomeric adducts of dichlorobis(4-chlorophenyl)tin(IV) with 4,4-dimethyl-2,2-bipyridyl V. G. Kumar Das, Yap Chee Keong, Chen Wei, Peter J. Smith and Thomas C. W. Mak, pp 129 DOI:10.1039/DT9870000129

trans to cis Isomerisations of platinum(II) olefin phosphine complexes, [PtX2(ol)(PR3)](X = Cl or Br; ol = ethene, propene, or 1-heptene; PR3= PBu3 or PMe2Ph) Ronald J. Cross and Michael F. Davidson, pp 139 DOI:10.1039/DT9870000139

The crystal structures of the diphenyldithiophosphinates of antimony(III) and bismuth(III): M(S2PPh2)3(M = Sb or Bi) Michael J. Begley, D. Bryan Sowerby and Ionel Haiduc, pp 145 DOI:10.1039/DT9870000145

The synthesis of mono- and bi-metallic complexes containing the ligand bis(diphenylarsino)methane Grant B. Jacobsen and Bernard L. Shaw, pp 151 DOI:10.1039/DT9870000151

The synthesis and structure of Group 5 metal alkyl and alkylidene complexes containing 2,6-dialkylphenoxide ligands: X-ray crystal structures of [Ta(OC6H3Me2-2,6)2(CH2Ph)3], [Ta(OC6H3Me2-2,6)4Me], and [Ta(OC6H3But2-2,6)2(CHSiMe3)(CH2SiMe3)] Linda R. Chamberlain, Ian P. Rothwell, Kirsten Folting and John C. Huffman, pp 155 DOI:10.1039/DT9870000155

Electronic absorption spectra and photochemical reactivity of Group 5 metal alkyl compounds: photochemical -hydrogen abstraction Linda R. Chamberlain and Ian P. Rothwell, pp 163 DOI:10.1039/DT9870000163

Oxoaryls of rhenium-(V) and -(VI) and osmium(VI). X-Ray crystal structures of dimesityldioxorhenium(VI), tetramesityloxorhenium(VI), and dimesityldioxoosmium(VI) Pericles Stravropoulos, Peter G. Edwards, Torsten Behling, Geoffrey Wilkinson, Majid Motevalli and Michael B. Hursthouse, pp 169 DOI:10.1039/DT9870000169

Investigation into aroylhydrazones as chelating agents. Part 8. Synthesis and spectroscopic characterization of complexes of Co, Ni, Cu, Zn, and Cd with 2,6-diacetylpyridine bis(salicyloylhydrazone); X-ray crystal structure of dichloro[2,6-diacetylpyridine bis(salicyloylhydrazone)]cadmium(II)-chloroform-methanol (1/1/1) Corrado Pelizzi, Giancarlo Pelizzi and Francesca Vitali, pp 177 DOI:10.1039/DT9870000177

Reactivity of ruthenium(II) complexes with 1-hydroxymethyl- or 1-benzyl-3,5-dimethylpyrazole and similar functionalized bipyrazoles. X-Ray crystal structure of carbonylchlorohydrido(3,5-dimethylpyrazole-N2)-bis(triphenylphosphine)ruthenium(II) Antonio Romero, Angel Vegas, Amelia Santos and Ana M. Cuadro, pp 183 DOI:10.1039/DT9870000183

Preparation and magnetism of the binuclear iron(II) complexes [{Fe(C9H21N3)X2}2](X = NCS, NCO, or N3) and their reaction with NO. Crystal structures of [{Fe(C9H21N3)(NCS)2}2] and [Fe(C9H21N3)(NO)(N3)2] Klaus Pohl, Karl Wieghardt, Bernhard Nuber and Johannes Weiss, pp 187 DOI:10.1039/DT9870000187

Secondary bonding. Part 14. Structural isomerism in diaryliodonium halides and the structure of di(p-tolyl)iodonium bromide Nathaniel W. Alcock and Rachel M. Countryman, pp 193 DOI:10.1039/DT9870000193

Mechanism of the reaction between trans-[W(NNH2)(p-MeC6H4SO3)(Ph2PCH2CH2PPh2)2]+ and NEt3: the influence of the metal on the rates of proton transfer of hydrazido(2-)-ligands Janette D. Lane and Richard A. Henderson, pp 197 DOI:10.1039/DT9870000197

Bis(dialkylphosphino)methane complexes of palladium(II) and the molecular structure of [Pd2Cl3(µ-PriPCH2PPri2)(µ-Pri2PCH2PHPri)]·2CHCl3 containing an unusual phosphidophosphine bridging ligand Ljubica Manojlovi-Muir, Brian R. Lloyd and Richard J. Puddephatt, pp 201 DOI:10.1039/DT9870000201

Complexes of ligands providing endogenous bridges. Part 1. The syntheses and crystal structures of barium and lead(II) complexes of macrocyclic Schiff bases derived from heterocyclic dicarbonyls and 1, n-diamino-n-hydroxyalkanes (n,n= 3,2; 4,2; or 5,3) Harry Adams, Neil A. Bailey, David E. Fenton, Rosalind J. Good, Richard Moody and Cecilia O. Rodriguez de Barbarin, pp 207 DOI:10.1039/DT9870000207

Complexes of ligands providing endogenous bridges. Part 2. The non-template synthesis of tetraimine Schiff base macrocycles derived from 1,3-diamino-2-hydroxypropane David E. Fenton and Richard Moody, pp 219 DOI:10.1039/DT9870000219

Bimetallic systems. Part 16. Formation of Group 6 metal(0)-platinum(II) hydride complexes, by ring opening of fac- or mer-[M(CO)3(dppm-PP)(dppm-P)](M = Cr, Mo, or W; dppm = Ph2PCH2PPh2). Reactions of [(CO)3Mo(µ-dppm)2PtH(Cl)] Adrian Blagg and Bernard L. Shaw, pp 221 DOI:10.1039/DT9870000221

Thiosemicarbazones as co-ordinating agents. Part 2. Synthesis, spectroscopic characterization, and X-ray structure of aquachloro(pyridoxal thiosemicarbazone)manganese(II) chloride and aqua(pyridoxal thiosemicarbazonato)-copper(II) chloride monohydrate Marisa Belicchi Ferrari, Giovanna Gasparri Fava, Corrado Pelizzi, Pieralberto Tarasconi and Gabriella Tosi, pp 227 DOI:10.1039/DT9870000227

Studies on alkaline-earth metal sulphites. Part 9. Solid solutions of Ca3(SO4)2SO3·12H2O in Ca3(SO3)2SO4·12H2O: structure, stability, and dehydration products Abraham Cohen and Mendel Zangen, pp 235 DOI:10.1039/DT9870000235

Syntheses, spectroscopic, and electrochemical properties of dinuclear copper(II) complexes bridged by a single thiolate sulphur atom; X-ray crystal structures of [Cu2(L1)2(SC6H4Cl-4)][PF6] and [Cu2(L2)2(SC6H4CH3-4)][ClO4] Nobuo Aoi, Gen-etsu Matsubayashi and Toshio Tanaka, pp 241 DOI:10.1039/DT9870000241

Notes. Oxidation and reduction of phosphorus-phosphorus and arsenic-arsenic double bonds. An electrochemical study of two diphosphenes and a diarsene Allen J. Bard, Alan H. Cowley, Jan E. Kilduff, Jonathan K. Leland, Nicholas C. Norman, Marek Pakulski and Graham A. Heath, pp 249 DOI:10.1039/DT9870000249

Synthesis of the alkoxo(hydrido)-clusters [Ru3(µ-H)(CO)10(µ-OR)][R = Me, Et, Prn, or Bun] catalysed by dinuclear carbonyl iron complexes Silvio Aime, Mauro Botta, Roberto Gobetto, Domenico Osella and Franco Padovan, pp 253 DOI:10.1039/DT9870000253

Equilibria in aqueous solutions of some iron(II) complexes Károly Micskei, pp 255 DOI:10.1039/DT9870000255

Synthesis and X-ray crystal structure of a cuboctahedral platinum cluster Judith A. K. Howard, John L. Spencer and David G. Turner, pp 259 DOI:10.1039/DT9870000259

Crystal and molecular structure of the six-co-ordinate antimony(III) complex SbCl3,L, where L =N,N-dimethyloxamide. Unusual O,O ligand binding leading to four-membered Sb(µ-O)2Sb ring formation Preet P. K. Claire, Gerald R. Willey and Michael G. B. Drew, pp 263 DOI:10.1039/DT9870000263

Matrix isolation studies of monomeric boron trisulphide Ian R. Beattie, Peter J. Jones, David J. Wild and Trevor R. Gilson, pp 267 DOI:10.1039/DT9870000267

Structure and bonding in (R2SiX)2 molecules (X = O, NH, CH2, or S; R = H) Eluvathingal D. Jemmis, P. N. V. Pavan Kumar and N. R. Sreenivas Kumar, pp 271 DOI:10.1039/DT9870000271

Additions and corrections Norman N. Greenwood, John D. Kennedy, Mark Thornton-Pett and J. Derek Woollins, pp 275 DOI:10.1039/DT9870000275

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700BX003

Issue 2

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FX005

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FP005

Reactions of metal carbonyl cluster complexes with multidentate phosphine ligands; the preparation and thermolysis of bis(dimethylphosphino)methane derivatives of [Ru3(CO)12], and the X-ray crystal structure of [Ru3(CO)9(H)(Me2PCHPMe2)] Jennifer A. Clucas, Douglas F. Foster, Marjorie M. Harding and Anthony K. Smith, pp 277 DOI:10.1039/DT9870000277

Reactions between bis(O-alkyl dithiocarbonato)nickel(II) complexes and phosphines. Formation of a dithiocarbonate complex of nickel(II): [Ni(S2CO)(Ph2PCH2CH2PPh2)] Maria F. Perpiñán, Loreto Ballester, Maria E. González-Casso and Amelia Santos, pp 281 DOI:10.1039/DT9870000281

Magnetostructural correlations in parallel square-planar chloride bridged copper(II) dimers: structure, dynamic nuclear magnetic resonance study, and magnetic properties of [Cu2(terpy)2Cl2][PF6]2 Teofilo Rojo, Maria I. Arriortua, Javier Ruiz, Jacques Darriet, Gerard Villeneuve and Daniel Beltran-Porter, pp 285 DOI:10.1039/DT9870000285

trans-Dichlorotetrakis(pyridine)platinum(IV) nitrate: a classical co-ordination compound Kenneth R. Seddon, Janet E. Turp, Edwin C. Constable and Ole Wernberg, pp 293 DOI:10.1039/DT9870000293

Structure and properties of tris(quinoxaline-2,3-dithiolato)molybdate(IV) Stephen Boyde, C. David Garner, John H. Enemark and Richard B. Ortega, pp 297 DOI:10.1039/DT9870000297

Preparations, crystal structures, and molybdenum-95 nuclear magnetic resonance spectroscopic studies of triphenylphosphine-gold-tetrathiomolybdate(VI) clusters John M. Charnock, Stuart Bristow, John R. Nicholson, C. David Garner and William Clegg, pp 303 DOI:10.1039/DT9870000303

Trimethylphosphine complexes of niobium(IV) and tantalum(IV). Crystal, molecular, and electronic structures of [M2Cl4(µ-Cl)4(PMe3)4](M = Nb or Ta) Peter D. W. Boyd, Alastair J. Nielson and Clifton E. F. Rickard, pp 307 DOI:10.1039/DT9870000307

Tin-119 nuclear magnetic resonance studies of some pseudohalogeno-derivatives of [SnX6]2-(X = Cl or Br) Keith B. Dillon and Andrew Marshall, pp 315 DOI:10.1039/DT9870000315

Preparation of isocyanide and mixed dinitrogen-isocyanide complexes of rhenium(I) from reactions of trans-[ReCl(N2)(PMe2Ph)4], mer-[Re(S2PPh2)(N2)(PMe2Ph)3], or mer-[Re(S2CNEt2)(N2)(PMe2Ph)3] with methyl isocyanide; crystal structure of mer-[Re(S2PPh2)(N2)(CNMe)(PMe2Ph)3] Armando J. L. Pombeiro, Peter B. Hitchcock and Raymond L. Richards, pp 319 DOI:10.1039/DT9870000319

Reaction of [Os5H2(CO)15] with pyridine: crystal and molecular structures of [Os5H3(CO)14(C5H4N)] and [Os5H2(CO)14(C5H5N)] Brian F. Johnson, Jack Lewis, William J. H. Nelson, Mary Ann Pearsall, Paul R. Raithby, Maria J. Rosales, Mary McPartlin and Angelo Sironi, pp 327 DOI:10.1039/DT9870000327

Chemistry of platinum sulphido-complexes. Part 6. Reactions of [Pt2(µ-S)2(PPh3)4] with the rhodium complexes [(RhL2Cl)2](L = CO or C2H4) and [Rh(2,6-Me2C6H3NC)4]PF6. Crystal and molecular structures of [Pt2Rh(µ-S)2(PPh3)4(CO)2][Rh(CO)2Cl2]·C3H6O and [Pt2Rh(µ-S)2(PPh3)4(2,6-Me2C6H3NC)2]PF6 David I. Gilmour, Michael A. Luke and D. Michael P. Mingos, pp 335 DOI:10.1039/DT9870000335

The addition of isonitriles to [{M(CO)2(-C5H5)}2](M = Mo or W). Syntheses and properties of [M2(µ-2-CNR)(CO)4(-C5H5)2](M = Mo or W, R = Me or But) and [{Mo(CNR)(CO)2(-C5H5)}2](R = Me or But). X-Ray crystal structures of [Mo2(µ-2-CNBut)(CO)4(-C5H5)2] and [{Mo(CNBut)(CO)2(-C5H5)}2] Harry Adams, Neil A. Bailey, Colin Bannister, Malcolm A. Faers, Peter Fedorko, Valerie A. Osborn and Mark J. Winter, pp 341 DOI:10.1039/DT9870000341

Thermal and photochemical behaviour of organotetraruthenium clusters: solution structures and dynamics of phosphine-substituted derivatives Domenico Osella, Silvio Aime, Giuseppe Nicola, Rossano Amadelli, Vittorio Carassiti and Luciano Milone, pp 349 DOI:10.1039/DT9870000349

Molecular orbital study of the bridging dioxygen ligand in [Al2(CH3)6(O2)]- Piercarlo Fantucci and Gianfranco Pacchioni, pp 355 DOI:10.1039/DT9870000355

Nucleophilic attack upon ethylene co-ordinated to mercury(II): a molecular-orbital study concerning the origin of the acceleration by HgII Shigeyoshi Sakaki, Katsuhiko Maruta and Katsutoshi Ohkubo, pp 361 DOI:10.1039/DT9870000361

Equilibrium and kinetic study of nitric oxide binding to phthalocyaninatoiron(II) in dimethyl sulphoxide Paolo Ascenzi, Maurizio Brunori, Giovanna Pennesi, Claudio Ercolani and Fabrizio Monacelli, pp 369 DOI:10.1039/DT9870000369

Studies on transition-metal macrocyclic complexes. Single-crystal X-ray structure and electrochemistry of the bis-macrocyclic complex [Cu(L)2][ClO4]2·2H2O (L = 1,4,7-triazacyclononane) Andrew D. Beveridge, Aidan J. Lavery, Malcolm D. Walkinshaw and Martin Schröder, pp 373 DOI:10.1039/DT9870000373

The heteronuclear cluster chemistry of the Group 1B metals. Part 2. Synthesis, X-ray crystal structures, and dynamic behaviour of the bimetallic hexanuclear Group 1B metal cluster compounds [M2Ru4H2(CO)12(PPh3)2](M = Cu, Ag, or Au) Mark J. Freeman, A. Guy Orpen and Ian D. Salter, pp 379 DOI:10.1039/DT9870000379

Activation of alkanes involving rhenium atoms: synthesis and electronic structure of binuclear µ-alkylidene derivatives; molecular structure of [{Re(-C6H6)}2(µ-CHBut)(µ-H)2] Jennifer C. Green, Malcolm L. H. Green, Dermot O'Hare, Rhuann R. Watson and Judith A. Bandy, pp 391 DOI:10.1039/DT9870000391

Synthesis of -arene rhenium compounds using rhenium atoms. Crystal structures of [Re2(-C6H6)(-C6H8)2(µ-H)2] and [Re(-C6H6)(-C6H8)H] Malcolm L. H. Green and Dermot O'Hare, pp 403 DOI:10.1039/DT9870000403

-Benzenebis(trimethylphosphine)iron as a precursor to [Fe(-C5R5)(PMe3)2](R = H or Me) derivatives: the equilibrium [Fe](PMe3)Et [Fe](-C2H4)H + PMe3, where [Fe]= Fe(-C5Me5)(PMe3) Malcolm L. H. Green and Luet-Lok Wong, pp 411 DOI:10.1039/DT9870000411

Sulphur-arsenic ligands. Dimethyl(methylthio)arsine complexes of halogenotrimethylplatinum(IV) and tricarbonylhalogenorhenium(I) Edward W. Abel and Michael A. Beckett, pp 417 DOI:10.1039/DT9870000417

Hydrogen halide radical anions J. Barrie Raynor, Ian J. Rowland and Martyn C. R. Symons, pp 421 DOI:10.1039/DT9870000421

Stereochemical role of lone pairs in main-group elements. Part 3. Structure and bonding in trichloro(1,4,7,10,13-pentaoxacyclopentadecane)antimony(III) studied by means of X-ray crystallography at 120 K Edward Hough, David G. Nicholson and Asha K. Vasudevan, pp 427 DOI:10.1039/DT9870000427

Determination of the deuterium position in DNb6I11 Arndt Simon, Friederike Stollmaier, David Gregson and Hartmut Fuess, pp 431 DOI:10.1039/DT9870000431

Pattern of transition-metal chelates with biological activity. Complex formation equilibria between -amino-N-hydroxy-1H-imidazole-4-propanamide and cobalt(II), nickel(II), copper(II), and hydrogen lons in aqueous solution Enrico Leporati, pp 435 DOI:10.1039/DT9870000435

Co-ordination of highly substituted alkenes to transition-metal complexes: preparation and crystal and molecular structures of the complexes [{RhCl(Ph2PO2CCHCMe2)}2] and [{RhCl(Ph2PO2CCHCHCHCHMe)}2] Domenico C. Cupertino and David J. Cole-Hamilton, pp 443 DOI:10.1039/DT9870000443

Ruthenium(II) complexes of closo-dodecaboranyl anions and the molecular structure of the pileo thirteen-vertex ruthenaborane [(PPh3)2ClRuB12H11(NEt3)] Margaret Elrington, Norman N. Greenwood, John D. Kennedy and Mark Thornton-Pett, pp 451 DOI:10.1039/DT9870000451

Electron spin resonance and electronic spectra and crystal and molecular structures of copper(II) amino acid complexes Michael A. Hitchman, Linda Kwan, Lutz M. Engelhardt and Allan H. White, pp 457 DOI:10.1039/DT9870000457

Reduction-oxidation properties of organotransition-metal complexes. Part 25. The one-electron reduction of cationic cyclopentadienyl-cobalt and -rhodium nitrosyl derivatives Neil G. Connelly, Stephen J. Raven and William E. Geiger, pp 467 DOI:10.1039/DT9870000467

Notes. Formation of a methoxycarbonyl group by attack of methanol on an iron(II) carbonyl complex, assisted by intramolecular proton transfer: X-ray structure determination of [Fe(CO)(PMe3)2(CNC6H11){CO(OCH3)}{C(CH3)NHC6H11}]BPh4 Giuseppe Cardaci, Gianfranco Bellachioma and Pier Francesco Zanazzi, pp 473 DOI:10.1039/DT9870000473

Direct synthesis of ammonium monofluorophosphate monohydrate, [NH4]2[PO3F]·H2O and potassium monofluorophosphate, K2[PO3F] Manish Bhattacharjee and Mihir K. Chaudhuri, pp 477 DOI:10.1039/DT9870000477

Additions and corrections Harry Adams, Neil A. Bailey, Valerie A. Osborn and Mark J. Winters, pp 479 DOI:10.1039/DT9870000479

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700BX007

Issue 3

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FX009

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FP009

Bonding in and gas-phase pyrolysis of the arsoranes and stibanes EMe3X2(E = As or Sb, X = F or Cl) and SbMe4F: ultraviolet photoelectron and field-ionization mass spectrometric studies Susanne Elbel, Helge Egsgaard and Lars Carlsen, pp 481 DOI:10.1039/DT9870000481

A structural study of the complexation of the lithium ion by the cryptand 4,7,13-trioxa-1,10-diazabicyclo[8.5.5]icosane Amira Abou-Hamdan, Andrea M. Hounslow, Stephen F. Lincoln and Trevor W. Hambley, pp 489 DOI:10.1039/DT9870000489

Synthetic, spectroscopic, and X-ray crystallographic studies on binuclear copper(II) complexes with a tridentate NNS-bonding 2-formylpyridine thiosemicarbazone ligand. The characterization of both neutral and deprotonated co-ordinated ligand structures Alistair G. Bingham, Hartmut Bögge, Achim Müller, Eric W. Ainscough and Andrew M. Brodie, pp 493 DOI:10.1039/DT9870000493

Formation of germanium-nitrogen double bonds in reactions of the electron-rich germylene bis[bis(trimethylsilyl)amido]germanium(II) with a range of diazo-compounds Christopher Glidewell, Douglas Lloyd and Keith W. Lumbard, pp 501 DOI:10.1039/DT9870000501

Reaction of an enolisable diazo-compound with the electron-rich stannylene Sn[N(SiMe3)2]2: preparation of a novel spiro[1,3,4,2-oxadiazastannine-6,4-pyrazole] derivative Christopher Glidewell, Douglas Lloyd and Keith W. Lumbard, pp 509 DOI:10.1039/DT9870000509

Kinetics and mechanism of ring closure for a series of photoproduced [M(CO)5L] intermediates (M = Cr, Mo, or W; L = pyridine 2-carbaldehyde imine ligand) Lisa Chan and Alistair J. Lees, pp 513 DOI:10.1039/DT9870000513

Solvent effect in the insertion reaction of iron(II) carbonyls Gustavo Reichenbach and Gianfranco Bellachioma, pp 519 DOI:10.1039/DT9870000519

Some binuclear molybdenum(VI) complexes obtained from condensation reactions: their crystal and molecular structures Vickie McKee and Cuthbert J. Wilkins, pp 523 DOI:10.1039/DT9870000523

The chemistry of the hydrazido(1-)-ligand. Preparations and crystal structures of [Mo(NHNHCO2Me)(NNCO2Me)(S2CNMe2)2], [Mo(NHNMePh)(NNMePh)(S2CNMe2)2]BPh4, and [ReCl2(NHNHCOPh)(NNHCOPh)(PPh3)2]. Mechanism of formation of substituted hydrazines from [Mo(NNRPh)2(S2CNMe2)2](R = Me or Ph) Jonathan R. Dilworth, Richard A. Henderson, Phillip Dahlstrom, Terrence Nicholson and Jon A. Zubieta, pp 529 DOI:10.1039/DT9870000529

Phosphorus-tellurium compounds. Part 3. Cyclopentadienyliron tellurophosphorane complexes: tellurium-bridged iron phosphine compounds? Norbert Kuhn and Hans Schumann, pp 541 DOI:10.1039/DT9870000541

Studies of pendant-arm macrocyclic ligands. Part 5. Synthesis of two pyridine-containing penta-aza macrocycles with single pyrrolidinyl pendant arms and characterisation of their nickel(II) and copper(II) complexes. Crystal structure of perchlorato{7-[2-(1-pyrrolidinyl)ethyl]-3,7,11,17-tetra-azabicyclo[11.3.1]heptadeca-1(17),13,15-triene}nickel(II) perchlorate Nathaniel W. Alcock, Karappulli P. Balakrishnan, Peter Moore and Hadi A. A. Omar, pp 545 DOI:10.1039/DT9870000545

Triosmium clusters containing ligands derived from tropone (cycloheptatrienone): molecular structure of an oxidative addition product [Os3H(µ3-C7H5O)(CO)9] Esther Boyar, Antony J. Deeming, Neil P. Randle, Paul A. Bates and Michael B. Hursthouse, pp 551 DOI:10.1039/DT9870000551

The synthesis and X-ray crystal structures of homoleptic tetrahedral aryls of osmium(IV) and of cyclohexyls of ruthenium(IV), osmium(IV), and chromium(IV) Pericles Stavropoulos, Paul D. Savage, Robert P. Tooze, Geoffrey Wilkinson, Bilquis Hussain, Majid Motevalli and Michael B. Hursthouse, pp 557 DOI:10.1039/DT9870000557

Interactions of the trimethyltin(IV) cation with carboxylic acids, amino acids, and related ligands Michael J. Hynes and Maire O'Dowd, pp 563 DOI:10.1039/DT9870000563

Preparation of the nitrenes ReF5(NF), ReF5(NCl), and ReF5(NBr). X-Ray crystal structures of ReF5(NF) and ReF5(NCl) John Fawcett, Raymond D. Peacock and David R. Russell, pp 567 DOI:10.1039/DT9870000567

Chromium(III)-catalysed cerium(IV) oxidation of arsenic(III) in aqueous sulphuric acid Shivamurti A. Chimatadar, Sharanappa T. Nandibewoor, Mahantesh I. Sambrani and Javali R. Raju, pp 573 DOI:10.1039/DT9870000573

Studies of phosphazenes. Part 30. Reactions of hexachlorocyclotriphosphazene with aromatic primary amines: interplay of geminal and non-geminal modes of chlorine replacement Sivapackia Ganapathiappan and Setharampattu S. Krishnamurthy, pp 579 DOI:10.1039/DT9870000579

Studies of phosphazenes. Part 31. Kinetic studies of the reactions of hexachlorocyclotriphosphazene with aromatic primary amines: evidence for the intermediacy of a reactive three-co-ordinated phosphorus(V) species Sivapackia Ganapathiappan and Setharampattu S. Krishnamurthy, pp 585 DOI:10.1039/DT9870000585

Reactions of co-ordinated ligands. Part 39. The synthesis of carbyne complexes from alkyne molybdenum and tungsten cations; formation and crystal structures of [Mo(CCH2But){P(OMe)3}2(-C5H5)] and [Mo{C(SiMe3)CH2}{P(OMe)3}2(5-C9H7)] Stephen R. Allen, Robert G. Beevor, Michael Green, A. Guy Orpen, Kathleen E. Paddick and Ian D. Williams, pp 591 DOI:10.1039/DT9870000591

Insertion of CO2-like molecules into the platinum-nitrogen bond of [Pt(PPh3)2(PhNO)]: the X-ray structures of [Pt{ON(Ph)C(NPh)S}(PPh3)2] and [Pt{ON(Ph)C(O)NPh}(PPh3)2] Francesco Demartin, Maddalena Pizzotti, Francesca Porta and Sergio Cenini, pp 605 DOI:10.1039/DT9870000605

Intercalation compounds of (diphosphato)oxotungsten(VI), [WO(P2O7)] Nobukazu Kinomura, Masashi Ohshiba, Masayuki Kobayashi, Nobuhiro Kumada and Fumio Muto, pp 609 DOI:10.1039/DT9870000609

Crystal structure of trans-dicarbonylbis(dimethylphenylphosphine)(N-phenylsalicylideneaminato)rhenium(I) and mer-trichloro(dimethylphenylphosphine)(N-phenylsalicylideneaminato)rhenium(IV). Comparison of ReI, ReIII, ReIV, and ReV complexes with the salicylideneaminato ligand and reaction mechanisms Valerio Bertolasi, Valeria Ferretti, Gastone Gilli, Adriano Duatti, Andrea Marchi and Luciano Magon, pp 613 DOI:10.1039/DT9870000613

A molybdenum-95 and nitrogen-14 nuclear magnetic resonance study of six-co-ordinate hydrotris(3,5-dimethyl-1-pyrazolyl)borate complexes containing a sixteen-electron {Mo(NO)}4 core Charles G. Young, Martin Minelli, John H. Enemark, Wasif Hussain, Christopher J. Jones and Jon A. McCleverty, pp 619 DOI:10.1039/DT9870000619

Synthesis and properties of gallium tetramethylammonium sodalite, NMe4GaSi5O12 Wolfgang Lortz and Günter Schön, pp 623 DOI:10.1039/DT9870000623

Mössbauer spectroscopic studies on molecular rotation and lattice dynamics of cyclodextrin clathrates of bis(-cyclopentadienyl)iron(II) and some of its ring-substituted derivatives Yonezo Maeda, Nobuhiro Ogawa and Yoshimasa Takashima, pp 627 DOI:10.1039/DT9870000627

Co-ordination chemistry of higher oxidation states. Part 22. trans-Dioxo-osmium(VI) complexes of diamines, diphosphines, and diarsines Stephen K. Harbron and William Levason, pp 633 DOI:10.1039/DT9870000633

Binuclear rhodium and iridium complexes containing pentamethylcyclopentadienyl and pyrazolate ligands Daniel Carmona, Luis A. Oro, M. Pilar Lamata, M. Pilar Puebla, José Ruiz and Peter M. Maitlis, pp 639 DOI:10.1039/DT9870000639

A group theoretical paradigm for describing the skeletal molecular orbitals of cluster compounds. Part 1. Deltahedral clusters Roy L. Johnston and D. Michael P. Mingos, pp 647 DOI:10.1039/DT9870000647

Thermodynamics of complex formation of silver with amines in dimethyl sulphoxide Alberto Cassol, Plinio Di Bernardo, Pierluigi Zanonato, Roberto Portanova and Marilena Tolazzi, pp 657 DOI:10.1039/DT9870000657

A thermodynamic and spectroscopic study of the proton and copper(II) complexes of L-prolyl-L-histidine, D-prolyl-L-histidine, L-histidyl-L-histidine, and D-histidyl-L-histidine Cynara E. Livera, Leslie D. Pettit, Michel Bataille, Bruno Perly, Henryk Kozlowski and Barbara Radomska, pp 661 DOI:10.1039/DT9870000661

Magnetic exchange interactions in perovskite solid solutions. Part 7. A study of the non-stoicheiometric phase SrCoO3-y by 57Fe Mössbauer spectroscopy Peter D. Battle and Terence C. Gibb, pp 667 DOI:10.1039/DT9870000667

Spectrochemistry of solutions. Part 19. Complexation of gold(I) by cyanide in liquid ammonia: an infrared and Raman spectroscopic study Peter Gans, J. Bernard Gill and Lawrence H. Johnson, pp 673 DOI:10.1039/DT9870000673

Notes. Synthesis and structure of µ-[trans-1,2-bis(diphenylphosphino)ethylene]bis[chlorogold(I)] Drake S. Eggleston, James V. McArdle and Gary E. Zuber, pp 677 DOI:10.1039/DT9870000677

The vibrational spectrum of tricarbonyl(trichlorostibine)nickel(0), [Ni(CO)3(SbCl3)] Howell G. M. Edwards, pp 681 DOI:10.1039/DT9870000681

Additions and corrections Alfonso Castiñeiras, Wolfgang Hiller, Joachim Strähle, Jorge Bravo, José S. Casas, Miguel Gayoso and José Sordo, pp 683 DOI:10.1039/DT9870000683

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700BX011

Issue 4

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FX013

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FP013

Vibrational studies of interstitial hydrogen in metal carbonyl clusters Pier Luigi Stanghellini and Giuliano Longoni, pp 685 DOI:10.1039/DT9870000685

Reaction of monoborane with tris(cyclopentadienyl)uranium(IV) derivatives Marina Porchia, Nicola Brianese, Franco Ossola, Gilberto Rossetto and Pierino Zanella, pp 691 DOI:10.1039/DT9870000691

Uranyl(VI) complexes of 3-aminopropanoic acid and 4-aminobutanoic acid in aqueous solution: a potentiometric and calorimetric study Arturo Bismondo, Luigi Rizzo, Plinio Di Bernardo and Pier Luigi Zanonato, pp 695 DOI:10.1039/DT9870000695

Reactions of heteroboranes. Synthesis of [2,2-(PPh3)2-1,2-SePtB10H10]·CH2CL2, its crystal and molecular structure and that of SeB11H11 George Ferguson, Masood Parvez, Jacqui A. MacCurtain, Orla Ni. Dhubhghaill, Trevor R. Spalding and David Reed, pp 699 DOI:10.1039/DT9870000699

Bis[bis(diphenylphosphino)methane]platinum(II) salts: evidence for the formation of a five-co-ordinate bis[bis(diphenylphosphino)methane]-halogenoplatinum(II) cation Martin C. Grossel, Roger P. Moulding, Kenneth R. Seddon and Fiona J. Walker, pp 705 DOI:10.1039/DT9870000705

A comparative synthetic and structural study of µ-oxo and µ-sulphido derivatives of N,N-ethylenebis(acetylacetoneiminato)iron(III), including the synthesis and structural characterization of the parent compound Fabio Corazza, Carlo Floriani and Margareta Zehnder, pp 709 DOI:10.1039/DT9870000709

Reactivity of the polyhydride complexes [ReH5(PPh3)3], [ReH3(dppe)2](dppe = Ph2PCH2CH2PPh2), [ReH3(PPh3)3L], and [ReH4(PPh3)3L]PF6(L = MeCN or ButNC) towards electrophiles and nucleophiles Gregory A. Moehring and Richard A. Walton, pp 715 DOI:10.1039/DT9870000715

Amino-acid complexation to a cobalt(III) complex of optically-active (2R,5R,8R,11R)-2,5,8,11 -tetraethyl-1,4,7,10-tetra-azacyclododecane (L). Preparation, characterization, and structure determinations of [CoIII{(R)-or(S)-alaO}L]Br[ClO4]·H2O Sei Tsuboyama, Tosio Sakurai and Kaoru Tsuboyama, pp 721 DOI:10.1039/DT9870000721

The radical cations of sulphur (S8+) and tetrasulphur tetranitride (S4N4+): a radiation-electron spin resonance study Harish Chandra, D. N. Ramakrishna Rao and Martyn C. R. Symons, pp 729 DOI:10.1039/DT9870000729

Metallacyclic complexes. Synthesis of metallathietane-3,3-dioxide (metallacyclosulphone) complexes of platinum(II), palladium(II), and nickel(II); crystal structure of trans-2,4-diphenyl-1, 1-bis(triphenylarsine)platinathietane-3,3-dioxide Kwok W. Chiu, John Fawcett, William Henderson, Raymond D. W. Kemmitt and David R. Russell, pp 733 DOI:10.1039/DT9870000733

Rhenium carbonyl fluorides: preparation of [Re(CO)6][ReF6] and some reactions of [Re(CO)5F·ReF5] John H. Holloway, John B. Senior and Anne C. Szary, pp 741 DOI:10.1039/DT9870000741

The chemistry of trichloro[tris(trimethylsilyl)methyl] and trichloro[tris(dimethylphenylsilyl)methyl] complexes of gallium, indium, and thallium. Crystal and molecular structures of [Li(thf)2(µ-Cl)2GaCl-{C(SiMe2Ph)3}]·thf, [Li(thf)3(µ-Cl)InCl2{C(SiMe3)3}], and [{(Me3Si)3C}In(µ-Cl)2{µ-Fe(CO)4}ln{C(SiMe3)3}](thf = tetrahydrofuran) Jerry L. Atwood, Simon G. Bott, Peter B. Hitchcock, Colin Eaborn, Rio S. Shariffudin, J. David Smith and Alice C. Sullivan, pp 747 DOI:10.1039/DT9870000747

Heteronuclear 1,3-intramolecular metal shifts in pentacarbonyl-chromium, -molybdenum, and -tungsten derivatives of 2-thia-4-selenapentane. A dynamic nuclear magnetic resonance investigation Edward W. Abel, Suresh K. Bhargava, Thomas E. MacKenzie, Pramod K. Mittal, Keith G. Orrell and Vladimir Sik, pp 757 DOI:10.1039/DT9870000757

The chemistry of vitamin B12. Part 27. The cage phosphite ester 4-ethyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane and the anionic dimethyl phosphite as ligands for cobalt(III) corrinoids Susan M. Chemaly, Eric A. Betterton and John M. Pratt, pp 761 DOI:10.1039/DT9870000761

Bimetallic systems. Part 17. Synthesis of Group 6 metal(0)-copper(I)-silver(I), or -gold(I) complexes with two Ph2PCH2PPh2(dppm) bridging ligands: crystal structure of [(OC)2W(µ-CO)(µ-dppm)2(µ-Cl)Cu]·CH2Cl2 Adrian Blagg, Bernard L. Shaw and Mark Thornton-Pett, pp 769 DOI:10.1039/DT9870000769

Bimetallic systems. Part 18. Nickel(II)-mercury(II) acetylide complexes containing bridging Ph2PCH2PPh2 ligands Xavier L. R. Fontaine, Simon J. Higgins, C. Richard Langrick and Bernard L. Shaw, pp 777 DOI:10.1039/DT9870000777

Synthesis and characterisation of [N(PPh3)2][RuRh5(CO)16] by X-ray crystallography and by natural-abundance carbon-13 nuclear magnetic resonance spectroscopy Jouni Pursiainen, Tapani A. Pakkanen and Kimmo Smolander, pp 781 DOI:10.1039/DT9870000781

Electron diffraction study of the molecular structure of n-methylbis(trimethylsilyl)amine in the gas phase David W. H. Rankin and Heather E. Robertson, pp 785 DOI:10.1039/DT9870000785

The configuration and lattice dynamics of complexes of dialkyltin(IV) with adenosine 5-monophosphate and phenyl phosphates Renato Barbieri, Giuseppe Alonzo and Rolfe H. Herber, pp 789 DOI:10.1039/DT9870000789

Menthyl-substituted organophosphorus compounds. Part 6. Preparation of P(L-men)RCl and P(L-men)R(S)Cl (R = Me, Et, Pri, But, or Ph; men =cyclo-C6H9-2-Pri-5-Me) and nuclear magnetic resonance studies of configuration and halogen exchange Gerhard Hägele, Wolfgang Kückelhaus, Gudrun Tossing, Jürgen Seega, Robin K. Harris, Clifford J. Creswell and Per T. Jageland, pp 795 DOI:10.1039/DT9870000795

Proton and phosphorus-31 nuclear magnetic resonance study of zinc(II)O,O-dialkyl dithiophosphates in solution Philip G. Harrison and Thakor Kikabhai, pp 807 DOI:10.1039/DT9870000807

Crystal structure and mass spectrometry of dichlorodimethylbis[2(1H)-pyridinethione-S]tin(IV) Giovanni Valle, Renato Ettorre, Umberto Vettori, Valerio Peruzzo and Gualtiero Plazzogna, pp 815 DOI:10.1039/DT9870000815

Mono- and di-carbonyl complexes of molybdenum(II) with mixed bidentate ligands. X-Ray crystal structure of [MoBr2(CO)(bipy)(Ph2PCH2PPh2)](bipy = 2,2-bipyridine): a novel type of [M(bidentate)2(unidentate)3] structure Francisco J. Arnaiz, Gabriel Garcia, Victor Riera, Yves Dromzée and Yves Jeannin, pp 819 DOI:10.1039/DT9870000819

Metal-ligand bonding parameters and magnetic properties of some previously reported tetragonal nickel(II) complexes Brendan J. Kennedy, Keith S. Murray, Michael A. Hitchman and Graham L. Rowbottom, pp 825 DOI:10.1039/DT9870000825

Redox behaviour of the iron-sulphur cluster [Fe6(µ3-S)8(PEt3)6]2+. Synthesis and crystal structure of the new paramagnetic monopositive species [Fe6(µ3-S)8(PEt3)6]+ as its [PF6]- salt Franco Cecconi, Carlo A. Ghilardi, Stefano Midollini, Annabella Orlandini and Piero Zanello, pp 831 DOI:10.1039/DT9870000831

Reactions of aluminopolyhydride complexes of tungsten. X-Ray crystal structures of [(Me3P)3H3W(µ-H)2AlCl(µ-NCHEt)]2, {[(Me3P)3WH5]Li}4, WH2I(PMe3)3(SiMe3), and (Me3P)3H2W(µ-H)3AlCl2(NMe3) Andrew R. Barron, Geoffrey Wilkinson, Majid Motevalli and Michael B. Hursthouse, pp 837 DOI:10.1039/DT9870000837

New heterocyclic compounds containing niobium and molybdenum; crystal structure of a cyclomolybdaphosphazene Herbert W. Roesky, Kattesh V. Katti, Ulrich Seseke, Hans-Georg Schmidt, Ernst Egert, Regine Herbst and George M. Sheldrick, pp 847 DOI:10.1039/DT9870000847

Preparation and reactions of bis(isocyanide)(5-indenyl)rhodium(I) complexes Yasuhiro Yamamoto and Hiroshi Yamazaki, pp 851 DOI:10.1039/DT9870000851

Reactions of cyclobutenedione and cyclopentenetrione with zero-valent nickel triad complexes of isocyanide. X-Ray crystal structures of (3-4--3,4-diphenylcyclobut-3-ene-1,2-dione)- and (4-5--4,5-diphenylcyclopent-4-ene-1,2,3-trione)-tris(t-butyl isocyanide)nickel Yoichi Iitaka, Tadashi Oohama, Muneki Shiina, Takeo Takizawa, Yasuhiro Yamamoto and Hiroshi Yamazaki, pp 853 DOI:10.1039/DT9870000853

Matrix isolation and mass spectrometric studies on the vaporisation of chromium(III) chloride. The characterisation of molecular CrCl4 and CrCl3 J. Steven Ogden and Robert S. Wyatt, pp 859 DOI:10.1039/DT9870000859

Synthesis and characterization of technetium-(IV) and -(III) complexes with bidentate Schiff bases. X-Ray molecular structure of chloro-(dimethylphenylphosphine)bis(N-phenylsalicylideneiminato)technetium(III) Adriano Duatti, Andrea Marchi, Silvio Alvarez Luna, Giuliano Bandoli, Ulderico Mazzi and Francesco Tisato, pp 867 DOI:10.1039/DT9870000867

Dicopper(II) complexes of a 28-membered N8 macrocycle. Evidence for proton transfer from co-ordinated secondary amine to thiocyanate, leading to formation of an lsothiocyanic acid complex Michael G. B. Drew, Brian P. Murphy, Jane Nelson and S. Martin Nelson, pp 873 DOI:10.1039/DT9870000873

Synthesis of o-nitrophenylplatinum(IV) complexes; crystal and molecular structure of dichlorobis(2=nitrophenyl=CO)platinum(IV) José Vicente, María-Teresa Chicote, José Martín, Peter G. Jones and Christa Fittschen, pp 881 DOI:10.1039/DT9870000881

Transition-metal mediated asymmetric synthesis. Part 5. Alternative methods for the formation of tricarbonyl(5-cyclohexadienyl)iron(1+) salts Rikki P. Alexander and G. Richard Stephenson, pp 885 DOI:10.1039/DT9870000885

Synthesis of pyridine-containing tetra-aza macrocycles: 3,7,11,17-tetra-azabicyclo[11.3.1]heptadeca-1(17),13,15-triene (L1), its 3,11-dibenzyl (L2) and 3,7,11-tribenzyl (L3) derivatives, and their nickel(II), copper(II), and zinc(II) complexes: crystal structures of L2·HCL and [Ni(L2)Cl]ClO4·H2O Nathaniel W. Alcock, Karappulli P. Balakrishnan, Peter Moore and Graham A. Pike, pp 889 DOI:10.1039/DT9870000889

Synthesis, reactions, and dynamic nuclear magnetic resonance studies of 2-vinyl complexes of tungsten, [W{3-C(CF3)C(CF3)(SR)}(CF3cCCF3)(5-C5H5)](R = Me, Et, Prn, Pri, or But) Laurence Carlton and Jack L. Davidson, pp 895 DOI:10.1039/DT9870000895

Rational synthesis of metalla-sulphur-nitrogen complexes: use of [Me2SnS2N2]2 in the preparation of complexes of the type [M(S2N2H)(PR3)2]X(M = Pt or Pd). X-Ray structures of [Pt(S2N2H)(PEt3)2][Me2SnCl3],[Pt(S2N2H)(PBun3)2]2[PF6]Cl, and [{Co(S2N2H)2}2{Ph2P(O)CH2CH2P(O)Ph2}] Ray Jones, Christopher P. Warrens, David J. Williams and J. Derek Woollins, pp 907 DOI:10.1039/DT9870000907

Some investigations of S5N5+ compounds; X-ray crystal structure of [S5N5]Cl Arthur J. Banister, Zdenek V. Hauptman, Aidan G. Kendrick and Ronald W. H. Small, pp 915 DOI:10.1039/DT9870000915

Structure and basicity. Part 10. Conductometric and potentiometric titrations of some cyclotriphosphazatrienes in non-aqueous media. The conductivities of alkali-metal acetates on titration with perchloric acid in acetic acid Necla Gündüz, Turgut Gündüz, Esma Kiliç, S. Gül Özta, Müride Tüzün, Leylâ S. Shaw (née Gözen) and Robert A. Shaw, pp 925 DOI:10.1039/DT9870000925

Trinuclear osmium clusters containing bidentate Ph2PCH2PPh2 and Me2PCH2PMe2 ligands: X-ray crystal structures of the complexes [Os3H(CO)9(Me2PCHPMe2)] and [Os3H(OH)(CO)8(Ph2PCH2PPh2)] Stephen R. Hodge, Brian F. G. Johnson, Jack Lewis and Paul R. Raithby, pp 931 DOI:10.1039/DT9870000931

Electron spin resonance and optical spectroscopic studies on Cu2+ and Co2+ in Cs2[Zn(N3)4] Wolfgang Neissl, Harald P. Fritzer, Peter Beardwood, John F. Gibson and Colin D. Flint, pp 939 DOI:10.1039/DT9870000939

Stability constants for hypochloritoborate and hypobromitoborate complex ions in aqueous solution Andrew Bousher, Peter Brimblecombe and Derek Midgley, pp 943 DOI:10.1039/DT9870000943

Complexes of the platinum metals. Part 32. Synthesis and chemistry of some iridium sulphonate derivatives P. Alexander Harding and Stephen D. Robinson, pp 947 DOI:10.1039/DT9870000947

Notes. Synthesis and characterization of monocyclopentadienyl niobium derivatives. X-Ray crystal structure of di-µ-chloro-µ-oxo-bis[dichloro(-trimethylsilylcyclo-pentadienyl)niobium(V)], [{Nb(-C5H4SiMe3)Cl2}2(µ-O)(µ-Cl)2] Ana María Andreu, Félix A. Jalón, Antonio Otero, Pascual Royo, Anna M. Manotti Lanfredi and Antonio Tiripicchio, pp 953 DOI:10.1039/DT9870000953

Substitution reactions between penta-ammineaquaruthenium(II) and thiocyanato, protonated acetato, cyano, and oxalato ligands in aqueous acidic solutions J. Folorunso Ojo, Olusegun Olubuyide and Olayinka Oyetunji, pp 957 DOI:10.1039/DT9870000957

Photo-oxidations of acetoin and biacetyl catalyzed by tetrabutylammonium decatungstate(4-) in acetonitrile under excess of oxygen Kenji Nomiya, Katsunori Maeda, Toshiaki Miyazaki and Makoto Miwa, pp 961 DOI:10.1039/DT9870000961

Copper(II) complexes of the 14-membered cis-N2S2 macrocycle 14,14,16-trimethyl-2,6-dithia-13,17-diazatricyclo[16.4.0.07,12]docosa-1(18),7(12),8,10,16,19,21-heptaene Robert W. Hay, Norman Govan and Mahesh P. Pujari, pp 963 DOI:10.1039/DT9870000963

Ferromagnetic tetrahalogenochromates(II) containing mixed halides (Cl and Br) Leslie F. Larkworthy, C. P. Prabhakaran and Santokh S. Tandon, pp 965 DOI:10.1039/DT9870000965

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700BX015

Issue 5

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FX017

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FP017

Phosphinoalkylsilyl complexes. Part 7. Synthesis and reactivity of octahedral, bis(chelate)dicarbonyl complexes of ruthenium(II) and osmium(II). Conformational properties of the bis(chelate) framework and X-ray crystal structures of [M(PPh2CH2CH2SiMe2)2(CO)2](M = Ru or Os) Rupert D. Holmes-Smith, Stephen R. Stobart, Rahmatollah Vefghi, Michael J. Zaworotko, Klaus Jochem and T. Stanley Cameron, pp 969 DOI:10.1039/DT9870000969

New dicyclopentadienyl phosphine, phosphite, and acetylene niobium(III) complexes. Crystal structure of [Nb(-C5H4SiMe3)2Cl(PhCCPh)] Antonio Antińolo, Pilar Gómez-Sal, Jesús Martínez de Ilarduya, Antonio Otero, Pascual Royo, Sagrario Martínez Carrera and Severino García Blanco, pp 975 DOI:10.1039/DT9870000975

2-Pyridonate (Opy) rhodium(I) carbonyl complexes. Crystal structure of the unusual tetranuclear complex [Rh4(µ-Opy)4(µ-CO)2(CO)4] Miguel A. Ciriano, B. Eva Villarroya, Luis A. Oro, Maria C. Apreda, Concepción Foces-Foces and Félix H. Cano, pp 981 DOI:10.1039/DT9870000981

A kinetic and mechanistic study of the formation of a diaryl ditelluride in solution by the sulphite reduction of the aryltellurium trichloride J. David Miller and Tahir A. Tahir, pp 985 DOI:10.1039/DT9870000985

Studies on transition-metal peroxo complexes. Part 7. Molybdenum(VI) and tungsten(VI) carboxylato peroxo complexes, and the X-ray crystal structure of K2[MoO(O2)2(glyc)]·2H2O Andrew C. Dengel, William P. Griffith, Richard D. Powell and Andrzej C. Skapski, pp 991 DOI:10.1039/DT9870000991

Thermally induced phase transition and X-ray crystal structure of bis(N,N-dimethyl-1,2-ethanediamine)di-isothiocyanatonickel(II) Alok K. Mukherjee, Monika Mukherjee, Alan J. Welch, Ashutosh Ghosh, Goutam De and Nirmalendu Ray Chaudhuri, pp 997 DOI:10.1039/DT9870000997

The heteronuclear cluster chemistry of the Group 1B metals. Part 3. Synthesis, structures, and chemical properties of the trimetallic hexanuclear Group 1B metal cluster compounds [MMRu4(µ3-H)2(CO)12(PPh3)2](M = Cu, M= Ag or Au; M = Ag, M= Au). X-Ray crystal structure of the complex [AgCuRu4(µ3-H)2(CO)12(PPh3)2]·CH2Cl2 Mark J. Freeman, A. Guy Orpen and Ian D. Salter, pp 1001 DOI:10.1039/DT9870001001

Ternary metal complexes of vitamin B6 related compounds. Crystal and molecular structures of copper(II)–2,2-bipyridyl-pyridoxic acid and copper(II)–2,2-bipyridyl–pyridoxic acid -lactone complexes S. P. Sudhakara Rao, Hattikudur Manohar, Katsuyuki Aoki and Hiroshi Yamazaki, pp 1009 DOI:10.1039/DT9870001009

Extended Hückel molecular orbital study of the effects of edge-bridging hydrogen atoms on the lengths of boron–boron and metal–metal bonds in cluster compounds, and the crystal structure of benzyltrimethylammonium octahydrotriborate(1–) Gary F. Mitchell and Alan J. Welch, pp 1017 DOI:10.1039/DT9870001017

Reactions of copper(II) with [S2P(OR)2]–(R = Et or Pri) and single-crystal X-ray studies of Cu[S2P(OEt)2]·bipy and Cu[S2P(OEt)2]·2PPh3 Michael G. B. Drew, George A. Forsyth, Masihul Hasan, Richard J. Hobson and David A. Rice, pp 1027 DOI:10.1039/DT9870001027

Electron-transfer platinum complexes of esters of dithiocarbazic acid. The crystal and molecular structure of [Pt{N(CH2Ph)NC(S)SMe}2] Vincenzo Fares, Anna Maria Giuliani, Patrizia Imperatori, Lorenza Suber and Franco Tarli, pp 1035 DOI:10.1039/DT9870001035

Carbene complexes in organic synthesis: a new tungstacarbene-promoted alkyne insertion–olefin cyclopropanation reaction Andrée Parlier, Henri Rudler, Nicole Platzer, Michel Fontanille and Alain Soum, pp 1041 DOI:10.1039/DT9870001041

High nuclearity osmium cluster radicals Simon R. Drake, Brian F. G. Johnson, Jack Lewis and Roderick C. S. McQueen, pp 1051 DOI:10.1039/DT9870001051

Direct synthesis of alkali trifluorocobaltate(II) monohydrates, A[CoF3]·H2O (A = NH4, Na, or K). First synthesis and structural assessment of mixed-ligand fluoro complexes of cobalt(II), [Co(NH3)4F2] and A[CoF(SO4)(H2O)2](A = NH4, Na, or K) Manabendra N. Bhattacharjee, Mihir K. Chaudhuri, Meenakshi Devi and Khriesavilie Yhome, pp 1055 DOI:10.1039/DT9870001055

The relative nucleophilic efficiency of water and the azide and thiocyanate ions in the aqueous substitution of chloropentacyanocobaltate(III) Moustafa H. M. Abou-El-Wafa, Michael G. Burnett and John F. McCullagh, pp 1059 DOI:10.1039/DT9870001059

Reactions of [M(NO){HB(3,5-Me2C3N2H)3}X2](M = Mo, X = I; M = W, X = Cl) with some amine-substituted pyridines. The molecular structures of [M(NO){HB(3,5-Me2C3N2H)3}(2-NHC5NH4)2] Najat Al Obaidi, Thomas A. Hamor, Christopher J. Jones, Jon A. McCleverty and Keith Paxton, pp 1063 DOI:10.1039/DT9870001063

The ring-stacking principle in organolithium chemistry: its development through the isolation and crystal structures of hexameric iminolithium clusters (RRCNLi)6(R= Ph, R = But or Me2N; R = R= Me2N or But) David R. Armstrong, Donald Barr, Ronald Snaith, William Clegg, Robert E. Mulvey, Kenneth Wade and David Reed, pp 1071 DOI:10.1039/DT9870001071

A structural comparison of bis(quinoxaline-2,3-dithiolato)cuprate complexes Stephen Boyde, C. David Garner and William Clegg, pp 1083 DOI:10.1039/DT9870001083

Lewis-base adducts of Group 11 metal(I) compounds. Part 27. Solid-state phosphorus-31 cross-polarization magic-angle spinning nuclear magnetic resonance, far-infrared, and structural studies on the mononuclear 2 : 1 adducts of triphenylphosphine with copper(I) and gold(I) halides Graham A. Bowmaker, Jeffrey C. Dyason, Peter C. Healy, Lutz M. Engelhardt, Chaveng Pakawatchai and Allan H. White, pp 1089 DOI:10.1039/DT9870001089

Lewis-base adducts of Group 11 metal(I) compounds. Part 28. Solid-state phosphorus-31 cross-polarization magic-angle spinning nuclear magnetic resonance and structural studies on the mononuclear 3: 1 adducts of triphenylphosphine with copper(I) halides Peter F. Barron, Jeffrey C. Dyason, Peter C. Healy, Lutz M. Engelhardt, Chaveng Pakawatchai, Vincent A. Patrick and Allan H. White, pp 1099 DOI:10.1039/DT9870001099

Studies of the pyridine-containing tetra-azamacrocycle 3,7,11-trimethyl-3,7,11,17-tetra-azabicyclo[11.3.1]heptadeca-1(17),13,15-triene (L1) and its complexes with Ni2+, Cu2+, and Zn2+. Crystal structures of the unsymmetric isomer of [Ni(L1)][ClO4]2, and the five-co-ordinate complexes [Ni(L1)(dmso)][ClO4]2(dmso = dimethyl sulphoxide) and [Ni(L1)Cl]ClO4 Nathaniel W. Alcock, Peter Moore and Hadi A. A. Omar, pp 1107 DOI:10.1039/DT9870001107

The preparation, structure, and reactions of the mononuclear thiolate–hydride complexes [MoH(SR)(dppe)2](R = bulky alkyl or aryl group, dppe = Ph2PCH2CH2PPh2); X-ray structure determination of cis-[MoH(SC6H2Pri3-2,4,6)(dppe)2] Richard A. Henderson, David L. Hughes, Raymond L. Richards and Caroline Shortman, pp 1115 DOI:10.1039/DT9870001115

Reaction of silicon difluoride with halogens: a reinvestigation Bettadapura S. Suresh and James Charlton Thompson, pp 1123 DOI:10.1039/DT9870001123

Reactions of copper(II) complexes of optically active N-substituted diamines with alk-3-en-2-ones or 4-hydroxyalkan-2-ones: formation of optically active macrocycles Kazuo Miyamura, Kazuhiko Hata, Tadashi Makino, Masahiko Saburi and Sadao Yoshikawa, pp 1127 DOI:10.1039/DT9870001127

Chemistry of metallacyclic complexes containing the FeCSCS ring obtained by metal-promoted CS2–CS coupling. X-Ray crystal structures of [(CO)(cp)FeC{SW(CO)5}SC(FeLn)S] and [(CO)(cp)FeC(SEt)SC(FeLn)S]SO3CF3[FeLn= Fe(cp)(CO)2, cp =-C5H5] Luigi Busetto, Valerio Zanotti, Vincenzo G. Albano, Dario Braga and Magda Monari, pp 1133 DOI:10.1039/DT9870001133

Aluminium speciation studies in biological fluids. A new investigation of aluminium hydroxide equilibria under physiological conditions Marilyne Venturini and Guy Berthon, pp 1145 DOI:10.1039/DT9870001145

Synthesis and stereochemical studies of the chiral ruthenium complexes [Ru(-C5H5){(S)dpompyr-PP}X][dpompyr =N-diphenylphosphino-2-(diphenylphosphinoxymethyl)pyrrolidine, X = H or Cl]. Crystal structure of [(S)Ru(-C5H5){(S)dpompyr-PP}Cl] Edoardo Cesarotti, Laura Prati, Angelo Sironi, Gianfranco Ciani and Colin White, pp 1149 DOI:10.1039/DT9870001149

Crystal structures of low- and high-spin iron(III) complexes with quadridentate Schiff bases Yuzo Nishida, Koji Kino and Sigeo Kida, pp 1157 DOI:10.1039/DT9870001157

Dimeric tungsten(V) compounds containing [(S)W(µ-S)2W(S)]2+. Syntheses and structures of di-µ-sulphido-bis[(diethyl dithiophosphato-SS)sulphido-tungsten(V)] and di-µ-sulphido-bis[(N,N-diethyldithiocarbamato-SS)-sulphidotungsten(V)] Michael G. B. Drew, Richard J. Hobson, Peter P. E. M. Mumba, David A. Rice and Neil Turp, pp 1163 DOI:10.1039/DT9870001163

The preparation of [Ru(NCMe)6][7-(6-C6Me6)-nido-7-RuB10H13]2 and its characterization by single-crystal X-ray diffraction analysis and nuclear magnetic resonance spectroscopy: a triply hydrogen-bridged eleven-vertex nido-7-metallaundecaborane Mark Bown, Xavier L. R. Fontaine, Norman N. Greenwood, John D. Kennedy and Mark Thornton-Pett, pp 1169 DOI:10.1039/DT9870001169

Reactions of planar pentadentate ligands with palladium and platinum chlorides. Crystal structures of cis-dichlorobis(N-isopropylidenebenzohydrazide)platinum(II) and the cyclopalladated dianion of N,N-(pyridine-2,6-diyldiethylidyne)bis(benzohydrazide) Gus J. Palenik and Thomas J. Giordano, pp 1175 DOI:10.1039/DT9870001175

Photoactivation of methane by 5-cyclopentadienyl and substituted 5-cyclopentadienyl Group 8 metal dicarbonyl complexes, [M(5-C5R5)(CO)2](M = Rh or Ir, R = H or Me), and dicarbonyl(5-indenyl)iridium: a matrix isolation study Antony J. Rest, Ian Whitwell, William A. G. Graham, James K. Hoyano and Alexander D. McMaster, pp 1181 DOI:10.1039/DT9870001181

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 54. Compounds derived from [W(CC6H4Me-4)(CO)2(-C5Me5)] with bonds between tungsten and iron, cobalt, or nickel; crystal structure of [FeW{µ-C(C6H4Me-4)C(O)O}(CO)5(-C5Me5)] Esther Delgado, Joachim Hein, John C. Jeffery, Andrew L. Ratermann, F. Gordon A. Stone and Louis J. Farrugia, pp 1191 DOI:10.1039/DT9870001191

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 55. Coupling of methylene and alkylidyne groups at a trimetal centre; crystal structures of [Ru2W{µ-:-trans-CHC(H)R}(µ-CO)(CO)3(-C5H5)2(-C5Me5)]·CH2Cl2 and [Ru2W(µ3-CCH2R)(µ-CO)3(CO)(-C5H5)3](R = C6H4Me-4) David L. Davies, Michael J. Parrott, Paul Sherwood and F. Gordon A. Stone, pp 1201 DOI:10.1039/DT9870001201

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 56. Synthesis of iron–molybdenum compounds; crystal structures of [FeMo(µ-CR)(CO)6(-C5H5)] and [FeMo2(µ3-RC2R)(CO)6(-C5H5)2](R = C6H4Me-4) M. Esther Garcia, John C. Jeffery, Paul Sherwood and F. Gordon A. Stone, pp 1209 DOI:10.1039/DT9870001209

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 57. Reactions of iron–molybdenum complexes with oxygen and sulphur; crystal structure of [FeMo(µ-2-SCC6H4Me-4)(CO)5(-C5H5)] Paul G. Byrne, M. Esther Garcia, John C. Jeffery, Paul Sherwood and F. Gordon A. Stone, pp 1215 DOI:10.1039/DT9870001215

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 58. Some reactions of the compounds [MW(µ-CC6H4Me-4)(CO)3(5-C9H7)(5-C2B9H9Me2)](M = Mo or W); crystal structures of the complexes [W2(µ-CC6H4Me-4)(CO)2(L)(5-C9H7)(5-C2B9H9Me2)][L = N2C(C6H4Me-4)2 or O] Judith A. K. Howard, Alun P. James, Alasdair N. de M. Jelfs, Christine M. Nunn and F. Gordon A. Stone, pp 1221 DOI:10.1039/DT9870001221

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 59. Reactions of the alkylidyne compounds [M(CR)(CO)2{HB(pz)3}][M = Cr, Mo, or W, R = C6H4Me-4; M = W, R = Me, HB(pz)3= hydrotris(pyrazol-1-yl)borate] with d10 complexes; crystal structure of [PtW2(µ-CMe)2(CO)4{HB(pz)3}2] Sigurd H. F. Becke, M. Dolores Bermúdez, N. Hoa Tran-Huy, Judith A. K. Howard, Owen Johnson and F. Gordon A. Stone, pp 1229 DOI:10.1039/DT9870001229

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 60. Di- and tri-metal compounds prepared from the metal alkylidyne complexes [W(CR)(CO)2(-C5Me5)](R = Me or C6H4Me-4) and [M(CR)(CO)2{HB(pz)3}][M = Mo, R = C6H4Me-4; M = W, R = Me; HB(pz)3= hydrotris(pyrazol-1-yl)borate] M. Dolores Bermúdez, Esther Delgado, Gregory P. Elliott, N. Hoa Tran-Huy, Fernando Mayor-Real, F. Gordon A. Stone and Michael J. Winter, pp 1235 DOI:10.1039/DT9870001235

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 61. Reactions of iron–molybdenum compounds with tertiary phosphines Paul G. Byrne, M. Esther Garcia, N. Hoa Tran-Huy, John C. Jeffery and F. Gordon A. Stone, pp 1243 DOI:10.1039/DT9870001243

Notes. Carbon-13 and phosphorus-31 nuclear magnetic resonance studies of the fluxional behaviour of the complexes [Fe3(CO)10{P(OMe)3}2] and [Fe3(CO)10{P(OMe)3}{P(OPh)3}] David H. Farrar and Julie A. Lunniss, pp 1249 DOI:10.1039/DT9870001249

Synthesis, characterization, and reactions of chromyl(VI) alkoxides Sunehri L. Chadha, Vijay Sharma and Anuradha Sharma, pp 1253 DOI:10.1039/DT9870001253

The crystal structure of bismuth diethyldithiophosphinate–benzene (1/1), Bi(S2PEt2)3·C6H6 D. Bryan Sowerby and Ionel Haiduc, pp 1257 DOI:10.1039/DT9870001257

Crystal and molecular structure of a novel mixed-spin binuclear nickel(II) complex with N,N,N,N-tetrakis(2-aminoethyl)-1,4,8,11-tetra-azacyclotetradecane Masahiro Mikuriya, Sigeo Kida and Ichiro Murase, pp 1261 DOI:10.1039/DT9870001261

Copper(II) complexes of tyrosine-containing tripeptides Tamas Kiss, pp 1263 DOI:10.1039/DT9870001263

Electronic d-d spectra and ligand-dissociation rates of pentacyanoruthenate(II) ions José A. Olabe, Hugo O. Zerga and Luis A. Gentil, pp 1267 DOI:10.1039/DT9870001267

Fluorine-19 nuclear magnetic resonance studies of tetraethylammonium fluoride in glacial ethanoic acid John Emsley, (the late) Victor Gold, Barry M. Lowe and Wing Tsee Alice Szeto, pp 1271 DOI:10.1039/DT9870001271

Binuclear copper(I) complexes containing bis(diphenylphosphino)methane bridging ligands: crystal structure of [Cu2(µ-dppm)2(MeCN)4][ClO4]2 Josefina Díez, M. Pilar Gamasa, José Gimeno, Antonio Tiripicchio and Marisa Tiripicchio Camellini, pp 1275 DOI:10.1039/DT9870001275

Water-soluble Schiff-base complexes of vanadyl(IV) and vanadium(III) Dennis F. Evans and Paul H. Missen, pp 1279 DOI:10.1039/DT9870001279

Additions and corrections Mark J. Freeman, A. Guy Orpen, Ian D. Salter, Enrico Leporati, Claude M. Tourné, Gilbert F. Tourné and Timothy J. R. Weakley, pp 1283 DOI:10.1039/DT9870001283

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700BX019

Issue 6

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FX021

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FP021

The preparation, characterisation, and some reactions of [Os3H(X)(CO)9(NMe3)](X = Cl, Br, or I) Evert J. Ditzel, Brian E. Hanson, Brian F. G. Johnson and Jack Lewis, pp 1285 DOI:10.1039/DT9870001285

Systematic cluster build up by the reaction of [Os3H(X)(CO)9(MeCN)](X = SR or NHMe; R = Me, Et, or Ph) with [OsH2(CO)4] Evert J. Ditzel, Brian F. G. Johnson and Jack Lewis, pp 1289 DOI:10.1039/DT9870001289

Substitution reactions on triosmium clusters of the type [Os3(µ-H)(µ-X)-(CO)10][X = NHMe, O2CR, C5H4N, or OC(NHMe); R = H, Me, or Ph] Evert J. Ditzel, Brian F. G. Johnson and Jack Lewis, pp 1293 DOI:10.1039/DT9870001293

Water photolysis. Part 2. An investigation of the relative advantages of various components of the sensitiser-electron relay-metal colloid system for the photoproduction of hydrogen from water, and the use of these systems in the photohydrogenation of unsaturated organic substrates Chee-Kai Tan, Vincent Newberry, Thomas R. Webb and Charles A. McAuliffe, pp 1299 DOI:10.1039/DT9870001299

Mixed oxidation state trinuclear cobalt complexes with bridging sulphito and Schiff-base ligands. Part 1. Preparation of the complexes [CoII(µ-SO3)2(µ-L)2COIII2(ROH)2](L = Schiff base anion, R = alkyl) and structure determination of [CoII(µ-SO3)2(µ-,-Me2-salpd)2CoIII2(PrnOH)2]·2PrnOH Chki Fukuhara, Eiji Asato, Toshimi Shimoji, Kosho Katsura, Masayasu Mori, Keiji Matsumoto and Shun'ichiro Ooi, pp 1305 DOI:10.1039/DT9870001305

Reactions of co-ordinated ligands. Part 40. Synthesis, structure, and reactivity of dirhenium µ-allylidene complexes; crystal structures of[Re2(µ-:3-CHCHCMe2)(CO)8] and [Re2(µ-:3-CHCHCMe2)(CO)9] Michael Green, A. Guy Orpen, Colin J. Schaverien and Ian D. Williams, pp 1313 DOI:10.1039/DT9870001313

Reactions of co-ordinated ligands. Part 41. Synthesis and reactions of cationic functionalised alkyne molybdenum complexes; formation of carbyne and vinylidene complexes and crystal structure of [Mo(CCHPh)Br{P(OMe)3}2(-C5H5)] Robert G. Beevor, Michael Green, A. Guy Orpen and Ian D. Williams, pp 1319 DOI:10.1039/DT9870001319

Gold(III) complexes with nitriles containing aromatic nuclei: crystal and molecular structure of trichloro(p-toluonitrile)gold(III) Wolfgang Hiller and Daniela Belli Dell'Amico, pp 1329 DOI:10.1039/DT9870001329

Spectroscopic, magnetic, and structural properties of diaquadimethanolbis-(N-tosylvalinato)copper(II) and its 2,2-bipyridine adduct Luigi P. Battaglia, Anna Bonamartini Corradi, Ledi Menabue, Monica Saladini and Marcó Sola, pp 1333 DOI:10.1039/DT9870001333

New spin-crossover iron(III) complexes with large hysteresis effects and time dependence of their magnetism Hiroki Oshio, Kenji Kitazaki, Junichi Mishiro, Noriyuki Kato, Yonezo Maeda and Yoshimasa Takashima, pp 1341 DOI:10.1039/DT9870001341

The chemistry of vitamin B12. Part 28. Crystal structure of dicyanocobyrinic acid heptamethyl ester and its interaction with alcohols: the effects of hydrogen bonding to co-ordinated cyanide Anthony J. Markwell, John M. Pratt, M. Salim Shaikjee and James G. Toerien, pp 1349 DOI:10.1039/DT9870001349

Syntheses and characterization of dinuclear palladium and platinum complexes with a single unsupported bridging group. Crystal structure of [{C6H3(CH2NMe2)2-o,o}Pd(µ-Cl)Pd{C6H3(CH2NMe2)2-o,o}]BF4 Jos Terheijden, Gerard van Koten, David M. Grove, Kees Vrieze and Anthony L. Spek, pp 1359 DOI:10.1039/DT9870001359

Reaction of elemental sulphur with cobalt(II)-Schiff-base complexes: synthesis of µ-disulphido and µ-tetrasulphido binuclear cobalt(III) complexes. Crystal structures of two binuclear cobalt(III)-Schiff-base complexes Carlo Floriani, Marina Fiallo, Angiola Chiesi-Villa and Carlo Guastini, pp 1367 DOI:10.1039/DT9870001367

Electrocatalytic reduction of carbon dioxide to methanol. Part 5. Relationship between the ability of metal complexes to engage in homogeneous catalysis and their co-ordination chemistry Kotaro Ogura and Hiroaki Uchida, pp 1377 DOI:10.1039/DT9870001377

Synthesis and characterization of palladium(II)-3-allyl-ylide complexes. X-Ray crystal structure of [PdCl(3-2-MeC3H4){Ph3PC(H)COMe}] Giacomo Facchin, Roberta Bertani, Mario Calligaris, Giorgio Nardin and Marina Mari, pp 1381 DOI:10.1039/DT9870001381

Synthesis, spectroscopic, and electrochemical properties of bis(2,2-bipyridyl)-ruthenium compounds of some pyridyl-1,2,4-triazoles Ronald Hage, Rob Prins, Jaap G. Haasnoot, Jan Reedijk and Johannes G. Vos, pp 1389 DOI:10.1039/DT9870001389

Reaction paths and kinetics in the Cr2+ reduction of the MoV2 and MoIV3 ions [Mo2O4(H2O)6]2+ and [Mo3O4(H2O)9]4+ Elaine F. Hills and A. Geoffrey Sykes, pp 1397 DOI:10.1039/DT9870001397

Reduction-oxidation properties of organotransition-metal complexes. Part 26. The synthesis of paramagnetic triazenido- and aryl(1-aryliminoethyl)amido-bridged dirhodium carbonyl derivatives containing the [Rh2]3+ core Neil G. Connelly, Gabriel Garcia, Mark Gilbert and Janet S. Stirling, pp 1403 DOI:10.1039/DT9870001403

Design of transition metal chelates with biological activity. Potentiometric study of complex formation equilibria between 2-amino-N-hydroxy-3-(p-hydroxyphenyl) propanamide and nickel(II), copper(II), and hydrogen ions in aqueous solution Enrico Leporati, pp 1409 DOI:10.1039/DT9870001409

The synthesis of silica-supported phosphine and phosphine oxide complexes of manganese(II) iodide and their reaction with sulphur dioxide Brian L. Booth, Liu Mu-guang and Charles A. McAuliffe, pp 1415 DOI:10.1039/DT9870001415

Magnetic exchange interactions in perovskite solid solutions. Part 8. A study of the solid solution SrFe1-xCoxO3-y by Iron-57 mössbauer spectroscopy Terence C. Gibb, pp 1419 DOI:10.1039/DT9870001419

Reactions of chromium(III) complexes of 1,10-phenanthroline, 2,2-bipyridyl, and oxalate with the pulse radiolytically generated aquated electron, zinc(I), and cadmium(I) Geoffrey A. Lawrance and David F. Sangster, pp 1425 DOI:10.1039/DT9870001425

Pentamethylcyclopentadienylrhodaborane chemistry. Part 2. The reaction of [6-(5-C5Me5)-nido-6-RhB9H13] with dimethylphenylphosphine, and the characterization of [5-(5-C5Me5)-nido-5-RhB9H11-7-(PMe2Ph)], [2-(5-C5Me5)-closo-2-RhB9H7-3,10-(PMe2Ph)2],* and [2-(5-C5Me5)-nido-2-RhB8H10-5-(PMe2Ph)] by X-ray diffraction analysis and nuclear magnetic resonance spectroscopy Xavier L. R. Fontaine, Hayat Fowkes, Norman N. Greenwood, John D. Kennedy and Mark Thornton-Pett, pp 1431 DOI:10.1039/DT9870001431

A group theoretical paradigm for describing the skeletal molecular orbitals of cluster compounds. Part 2. Bispherical clusters Roy L. Johnston and D. Michael P. Mingos, pp 1445 DOI:10.1039/DT9870001445

Triosmium clusters containing the ligands CNH2, NCHCN, and NCMeCN derived from cyanide ion, cyanogen, and acetonitrile Antony J. Deeming, Susan Donovan-Mtunzi, Shariff E. Kabir, Alejandro J. Arce and Ysaura De Sanctis, pp 1457 DOI:10.1039/DT9870001457

Metallocene derivatives of early transition elements. Part 4. Synthesis and crystal structures of a series of zirconocene(IV) halides [Zr(-C5H4SiMe3)2X2](X = Cl or Br) and [Zr{-C5H3(SiMe3)2-1,3}2X2](XF, Br, or I) Antonio Antiñolo, Michael F. Lappert, Anirudh Singh, Duncan J. W. Winterborn, Lutz M. Engelhardt, Colin L. Raston, Allan H. White, Arthur J. Carty and Nicholas J. Taylor, pp 1463 DOI:10.1039/DT9870001463

Kinetic studies on the oxidation of ethylenediaminebis(pyridine)- and bis(ethylenediamine)-platinum(II) complexes by hexachloroiridate(IV) Arnaldo Peloso, pp 1473 DOI:10.1039/DT9870001473

Cyclopalladation to form planar tridentate [N-C-N]- intramolecular co-ordination systems involving pyridine donor groups, including ligand synthesis and X-ray structural studies Allan J. Canty, Nigel J. Minchin, Brian W. Skelton and Allan H. White, pp 1477 DOI:10.1039/DT9870001477

Concentrated aqueous solutions and liquid hydrates of zinc chloride: a study of their solvent behaviour using intershell, charge-transfer, and d-d absorption spectra John A. Duffy and G. Leslie Wood, pp 1485 DOI:10.1039/DT9870001485

Bimetallic systems. Part 19. Chromium(0)-, molybdenum(0)-, or tungsten(0)-iron(0) carbonyl complexes containing one or two bridging Ph2PCH2PPh2 ligands: crystal structure of [(OC)3Mo(µ-Ph2PCH2PPh2)2Fe(CO)3] Grant B. Jacobsen, Bernard L. Shaw and Mark Thornton-Pett, pp 1489 DOI:10.1039/DT9870001489

Bimetallic systems. Part 20. Synthesis of group 6 metal(0)-iridium(I) or -rhodium(I) complexes bridged by Ph2PCH2PPh2 Adrian Blagg, Paul G. Pringle and Bernard L. Shaw, pp 1495 DOI:10.1039/DT9870001495

Bimetallic systems. Part 21. Synthesis of vinylidene- and phenylene-bridged complexes of dinickel(II), nickel(II)-palladium(II), and nickel(II)-platinum(II) containing Ph2PCH2PPh2(dppm): crystal structures of [(SCN)Ni(µ-dppm)2(µ-CCH2)Ni(NCS)] and [ClPd(µ-dppm)2(µ-CCCl2)NiCl] Xavier L. R. Fontaine, Simon J. Higgins, Bernard L. Shaw, Mark Thornton-Pett and Wu Yichang, pp 1501 DOI:10.1039/DT9870001501

Bimetallic systems. Part 22. Molybdenum(0)- and manganese(I)-iron(0) carbonyl complexes containing one bridging Ph2PCH2PPh2 ligand, including the reversible uptake of carbon monoxide: crystal structure of [(OC)4Fe(µ-Ph2PCH2PPh2)Mo(CO)4]·0.5 C6H5Cl Grant B. Jacobsen, Bernard L. Shaw and Mark Thornton-Pett, pp 1509 DOI:10.1039/DT9870001509

Phosphorus-31 nuclear magnetic resonance parameters for compounds with the -tetraphosphorus trisulphide skeleton; substituent constants for an inorganic substrate Bruce W. Tattershall, pp 1515 DOI:10.1039/DT9870001515

A quantitative approach to host-guest interactions for matrix-isolated alkali-metal salts of hexafluoroanions and perchlorates Ian R. Beattie and Keith R. Millington, pp 1521 DOI:10.1039/DT9870001521

Intermediates in the conversion of [Os3(CO)11(PRPh2)](R = Me or Ph) into [Os3(µ3-C6H4)(µ3-PR)(CO)9]: crystal and molecular structures of [Os3-(µ-H)(µ3-C6H4PMePh-o)(CO)9] and [Os3(µ3-C6H4PMe-o)(CO)10] Antony J. Deeming, Shariff E. Kabir, Nicholas I. Powell, Paul A. Bates and Michael B. Hursthouse, pp 1529 DOI:10.1039/DT9870001529

Raman and resonance-Raman studies of platinum group tetrathiomolybdates and tetrathiotungstates Robin J. H. Clark and Jacqueline R. Walton, pp 1535 DOI:10.1039/DT9870001535

The triphenylphosphine cone angle and restricted rotation about the chromium-phosphorus bond in dicarbonyl(6-hexa-alkylbenzene)(triphenyl-phosphine)chromium(0) complexes. Crystal and molecular structure of dicarbonyl(6-hexa-n-propylbenzene)(triphenylphosphine)chromium(0) Geoffrey Hunter, Timothy J. R. Weakley and Walter Weissensteiner, pp 1545 DOI:10.1039/DT9870001545

Preparation and reactivity of halide-bridged binuclear carbonyl manganese and rhenium anions, [M2(µ-X)(CO)8-2n{(EtO)2POP(OEt)2}n]-(X = halide; M = Mn, n= 1 or 2; M = Re, n= 1). X-Ray crystal structure of [Mn2Au(µ-Br)(CO)6-(µ-tedip)(PPh3)] Victor Riera, Miguel A. Ruiz, Antonio Tiripicchio and Marisa Tiripicchio Camellini, pp 1551 DOI:10.1039/DT9870001551

Synthesis and substitution reactions of a heterodimetallic molybdenum-manganese complex, [MoMn(µ-H)(µ-PPh2)(5-C5H5)(CO)6]; X-ray crystal structure of [MoMn(µ-H)(µ-PPh2)(5-C5H5)(CO)4(dppm-PP)] Andrew D. Horton, Martin J. Mays and Paul R. Raithby, pp 1557 DOI:10.1039/DT9870001557

Notes. Reactions of (NSCl)3 with Lewis acids and sulphur: a convenient preparation of [S2N][SbCl6] Arthur J. Banister and Aidan G. Kendrick, pp 1565 DOI:10.1039/DT9870001565

Crystal and molecular structure of [{Ag[S2P(OEt)2]·PPh3}2] Michael G. B. Drew, Richard J. Hobson, Peter P. E. M. Mumba and David A. Rice, pp 1569 DOI:10.1039/DT9870001569

Identification of the endo,exo isomer of 6,9-(PMe2Ph)2-arachno-B10H12 by nuclear magnetic resonance spectroscopy Xavier L. R. Fontaine and John D. Kennedy, pp 1573 DOI:10.1039/DT9870001573

Preparation and crystal structures of [PPh4]2[M2(SPh)6](M = Zn or Cd) Ian L. Abrahams, C. David Garner and William Clegg, pp 1577 DOI:10.1039/DT9870001577

Letters William E. Hill, Denys A. Wickens and Gillian Abrams, pp 1581 DOI:10.1039/DT9870001581

Additions and corrections Enrico Leporati, Alistair G. Bingham, Hartmut Bögge, Achim Müller, Eric W. Ainscough, Andrew M. Brodie, Francesco Demartin, Maddalena Pizzotti, Francesca Porta and Sergio Cenini, pp 1583 DOI:10.1039/DT9870001583

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700BX023

Issue 7

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FX025

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FP025

Structure and magnetism of analogous O-bridged (phenolato) and S-bridged (thiophenolato) binuclear copper(II) complexes. Crystal structure of the binuclear S-bridged complex µ-[2,6-bis(4-cyclohexyl-4-hydroxy-2,3-diazabuta-1,3-dien-1-yl)-4-methylthiophenolato(3-)-S,N2,O(Cu1,2)]-methanol-µ-(pyrazolyl-N,N)-dicopper(II) Peter Iliopoulos, Keith S. Murray, Richard Robson, Jenny Wilson and Geoffrey A. Williams, pp 1585 DOI:10.1039/DT9870001585

Nitrogen-15 and oxygen-17 nuclear magnetic resonance chemical shifts and 15N-29Si, 13C-29Si, and 15N-1H coupling constants in cyclosilazoxanes riks Kupe, Edvards Liepin, Edmunds Lukevics and Boris Astapov, pp 1593 DOI:10.1039/DT9870001593

Involvement of hydrogen-bonding protons in delocalization of the paramagnetic electron in a single crystal of photoreduced decatungstate Toshihiro Yamase, pp 1597 DOI:10.1039/DT9870001597

Complexes of 2,5,7,9-tetrathiabicyclo[4.3.0]non-1(6)-ene-8-thione(L1). Part 1. Synthesis and antimony-121 Mössbauer spectroscopic characterisation of SbCl3(L1)1.5, crystal and molecular structures of SbCl3(L1)1.5 and uncomplexed L1 Michael G. B. Drew, Jonathan M. Kisenyi and R. V. (Dick) Parish, pp 1605 DOI:10.1039/DT9870001605

Synthesis of (-cyclopentadienyl)(trimethylphosphine)tungsten derivatives and related chemistry Malcolm L. H. Green and Gerard Parkin, pp 1611 DOI:10.1039/DT9870001611

Synthesis and characterization of new heterobimetallic iron-cobalt complexes with ethenyl bridges CR2CHR1[R1= H or C(O)OMe, R2= C(O)OMe or C(O)OEt]. X-Ray structure of [FeCo(CO)6{µ-MeOC(O)CC(H)C(O)OMe}] Isabel Moldes, Josep Ros, René Mathieu, Xavier Solans and Mercé Font-Bardía, pp 1619 DOI:10.1039/DT9870001619

Substituted osmium clusters containing labile ligands. The preparation, characterisation, and some reactions of [Os3H(OR)(CO)9(MeCN)](R = H, Me, Et, or Ph) and the isomers of [Os3H(SR)(CO)9(MeCN)](R = Me, Et, or Ph); the crystal and molecular structure of [Os3H(SPh)(CO)9(PEt3)] Evert J. Ditzel, M. Pilar Gómez-Sal, Brian F. G. Johnson, Jack Lewis and Paul R. Raithby, pp 1623 DOI:10.1039/DT9870001623

Ring-size and substituent effects in relatively rigid macrocyclic quinquedentate ligands. Structure determinations of [ZnL4(H2O)2][ClO4]2·MeCN and [ZnL3(ClO4)2] David C. Liles, Mary McPartlin and Peter A. Tasker, pp 1631 DOI:10.1039/DT9870001631

Nitrogen-14 nuclear quadrupole resonance study of bonding in transition-metal cyanides Juan Murgich and Tonis Oja, pp 1637 DOI:10.1039/DT9870001637

Crystal and molecular structures of [MCl(CPhCMe2)(-C5H5)2](M = Zr or Hf) and [TiCl0.5 Br0.5(CPhCMe2)(-C5H5)2]: an unusual -interaction with the metals and molecular orbital calculations on model compounds Christine J. Cardin, David J. Cardin, D. Anthony Morton-Blake, Hans E. Parge and Abhijit Roy, pp 1641 DOI:10.1039/DT9870001641

Chemistry of 2,3-dihydro-2-metallaphenalenes. Part 2. Formation of [CHMMe2C(MMe3)C10H6]xvia base decomposition of [1,8-(Me3MCH2)2C10H6]y(M = Ge, x= 2-, y= 0; M = P, x= 0, y= 2+); crystal structures of the novel bis-ylide CHPMe2C(PMe3)C10H6 and of a distorted peri-ylide, 1-Me-8-(Me3PCH)C10H6 Lutz M. Engelhardt, Rocco I. Papasergio, Colin L. Raston, Geoffrey Salem, Claire R. Whitaker and Allan H. White, pp 1647 DOI:10.1039/DT9870001647

Neutral and anionic 2-methyl-6-nitrophenyl palladium(II) complexes. The X-ray crystal structure of bis(benzyltriphenylphosphonium)trans-di-µ-chloro-bis[chloro(2-methyl-6-nitrophenyl)palladate(II)]-acetone (1/2) Jose Vicente, Aurelia Arcas, M. Victoria Borrachero and Michael B. Hursthouse, pp 1655 DOI:10.1039/DT9870001655

Unsymmetrical bridging of an acetylide ligand in the cation [Pt2(CCBut)3(µ-dppm)2]+(dppm = Ph2PCH2PPh2): X-ray structure determination of the tetraphenylborate salt Nathaniel W. Alcock, Terence J. Kemp, Paul G. Pringle, Paola Bergamini and Orazio Traverso, pp 1659 DOI:10.1039/DT9870001659

Syntheses, X-ray structures, and properties of complexes of macrocyclic hexaimines with lanthanide nitrates Ata M. Arif, J. D. Julius Backer-Dirks, Colin J. Gray, F. Alan Hart and Michael B. Hursthouse, pp 1665 DOI:10.1039/DT9870001665

Preparation and partial oxidation of tin(II) trifluoroacetate: spectroscopic properties and X-ray crystal structure of di-µ3-oxo-octakis-µ-trifluoroacetato-tetratin(II)tin(IV) Thomas Birchall, Romolo Faggiani, Colin J. L. Lock and Veeragathy Manivannan, pp 1675 DOI:10.1039/DT9870001675

Preparation, structure, and properties of [Ni{S2C2(CF3)2}2]- and [Ni{Se2C2(CF3)2}2]- salts with small cations Nigel J. Harris and Allan E. Underhill, pp 1683 DOI:10.1039/DT9870001683

Photochemical preparation and reactivity of platinum(II) complexes with oxygen-donor ligands. Description and synthesis of di-µ-chloro-dichlorobis(substituted pyridine)diplatinum(II) Joëlle Auffret, Pierre Courtot, Roger Pichon and Jean-Yves Salaün, pp 1687 DOI:10.1039/DT9870001687

Technetium(V) and rhenium(V) complexes with N-(2-mercaptophenyl)salicylideneiminate. Crystal structure of chloro(oxo)[N-(2-sulphidophenyl)salicylideneiminato-NOS]technetium(V) Francesco Tisato, Fiorenzo Refosco, Ulderico Mazzi, Giuliano Bandoli and Marino Nicolini, pp 1693 DOI:10.1039/DT9870001693

Tungsten(VI) equilibria: a potentiometric and calorimetric investigation Johannes J. Cruywagen and Izak F. J. van der Merwe, pp 1701 DOI:10.1039/DT9870001701

Crystal and molecular structure of [Co8(CO)21(µ5-CS2)(µ5-C2S)]: a thiocarbonyl group as a six-electron donor Giuliana Gervasio, Rosanna Rossetti, Pier Luigi Stanghellini and György Bor, pp 1707 DOI:10.1039/DT9870001707

Conversion of uncharged methyl complexes of ruthenium(II) into a cationic acyl complex: a mechanistic study K. Michelle McCooey, E. Jane Probitts and Roger J. Mawby, pp 1713 DOI:10.1039/DT9870001713

Studies on transition-metal-peptide complexes. Part 13. Copper(II) and nickel(II) complexes of amino acids and peptides containing a thioether group Imre Sóvágó and György Petcz, pp 1717 DOI:10.1039/DT9870001717

An electron spin resonance study of the equilibrium between tetrahalogeno- and pentahalogeno-nitridotechnetate(VI) ions in solution John Baldas, John F. Boas and John Bonnyman, pp 1721 DOI:10.1039/DT9870001721

Iron antimonate Frank J. Berry, John G. Holden, Michael H. Loretto and David S. Urch, pp 1727 DOI:10.1039/DT9870001727

Monometallic, homo- and hetero-bimetallic complexes based on redox active tris(3,5-dimethylpyrazolyl)borato-molybdenum and -tungsten nitrosyls. Part 4. The effects of ligating atom type on the reduction potentials of monometallic complexes Najat Al Obaidi, Muktimoy Chaudhury, Diane Clague, Christopher J. Jones, Julie C. Pearson, Jon A. McCleverty and Sithy S. Salam, pp 1733 DOI:10.1039/DT9870001733

Charge density in the CoCl42- ion: a comparison with spin density and theoretical calculations Brian N. Figgis, Philip A. Reynolds and Allan H. White, pp 1737 DOI:10.1039/DT9870001737

Covalence in the [Cr(CN)6]3- ion studied by X-ray diffraction from Cs2KCr(CN)6 Brian N. Figgis and Philip A. Reynolds, pp 1747 DOI:10.1039/DT9870001747

An electron spin resonance study of the copper(II) chelate of 2-(2-pyridyimethylenehydrazonomethyl)phenol and related compounds Michael Tirant, Thomas D. Smith, John R. Pilbrow, Graeme Hanson and Geoffrey R. Sinclair, pp 1755 DOI:10.1039/DT9870001755

Synthesis and reactions of [(OC)2Re(µ-dppm)2(µ-Cl)2Rh(2-C2H4)](dppm = Ph2PCH2PPh2): crystal structure of the 1 : 2 chlorobenzene solvate Stuart W. Carr, Bernard L. Shaw and Mark Thornton-Pett, pp 1763 DOI:10.1039/DT9870001763

The reversible one-electron oxidation of trans-[MnL(CO)(Ph2PCH2PPh2)2]z+: synthesis and characterisation of stable manganese(II) derivatives Gabino A. Carriedo, Victor Riera, Neil G. Connelly and Stephen J. Raven, pp 1769 DOI:10.1039/DT9870001769

The base catalysed hydrolysis of trans-dichlorobis-(1,2-diaminoethane)-cobalt(III) and -(1,3-diaminopropane)cobalt(III) cations: rate-limiting proton transfer Christine Blakeley and Martin L. Tobe, pp 1775 DOI:10.1039/DT9870001775

Correlation between thermal stability and molecular and crystal structure in a series of potassium-dibenzo-18-crown-6 solid compounds Luigi P. Battaglia, Anna Bonamartini Corradi, Antonio Bianchi, Jolanda Giusti and Piero Paoletti, pp 1779 DOI:10.1039/DT9870001779

Notes. The co-ordination of small molecules by manganese(II) phosphine complexes. The reaction of some [MnX2L](X = Cl, Br, or I; L = PPrn3, PMe2Ph, or PPh3) complexes with tetracyanoethylene George A. Gott and Charles A. McAuliffe, pp 1785 DOI:10.1039/DT9870001785

Co-oligomerization of diphenylketene and ethylene promoted by (5-cyclopentadienyl)bis(ethylene)cobalt(I): synthesis and X-ray structure of a heterocycle containing cobalt(III) Sandro Gambarotta, Sergio Stella, Carlo Floriani, Angiola Chiesi-Villa and Carlo Guastini, pp 1789 DOI:10.1039/DT9870001789

X-Ray crystal structure and properties of dibenzotetrathiafulvalenium trichlorodiethylstannate(IV) Gen-etsu Matsubayashi, Ryuichi Shimizu and Toshio Tanaka, pp 1793 DOI:10.1039/DT9870001793

Di-2-pyridyl ketone complexes of copper(I): efficient photocatalysts for norbornadiene-quadricyclane conversion Amitabha Basu, Ashok R. Saple and Niteen Y. Sapre, pp 1797 DOI:10.1039/DT9870001797

On the induced circular dichroism of d-d transitions of a 14-membered macrocyclic tetra-amine nickel(II) complex in -cyclodextrin Nagao Kobayashi, Xizhang Zao, Tetsuo Osa, Kazumasa Kato, Kenji Hanabusa, Tomosaku Imoto and Hirofusa Shirai, pp 1801 DOI:10.1039/DT9870001801

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700BX027

Issue 8

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FX029

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FP029

Metallacarboranes derived from the [C2B10H12]2- anion. The preparation, molecular structure, and properties of [4-(dppe)-4-Pd-1,6-C2B10H12], [4,4,4-H(PPh3)2-2-OMe-4-Ir-1,6-C2B10H11], and [3-(dppe)-3-Pt-1,2-C2B9H11] Nathaniel W. Alcock, John G. Taylor and Malcolm G. H. Wallbridge, pp 1805 DOI:10.1039/DT9870001805

Cationic ruthenium(II) phosphite complexes. Preparation and properties of monocarbonyl and isocyanide derivatives Gabriele Albertin, Stefano Antoniutti and Emilio Bordignon, pp 1813 DOI:10.1039/DT9870001813

Crystal and molecular structure of chromium(II) sulphate pentahydrate and single-crystal electronic spectra and bonding of CrSO4·5H2O, CuSO4·5H2O, and CuSO4·5D2O Michael A. Hitchman, Michael Lichon, Robbie G. McDonald, Peter W. Smith, Robert Stranger, Brian W. Skelton and Allan H. White, pp 1817 DOI:10.1039/DT9870001817

Mixed chloro-, NN-dialkyldithiocarbamato-, and S-alkyl NN-dialkyldithiocarbamate complexes of platinum(II). Crystal structure of [PtCl(S2CNEt2)(MeS2CNEt)] Dore A. Clemente, Giuseppina Faraglia, Livia Sindellari and Lucio Trincia, pp 1823 DOI:10.1039/DT9870001823

Synthesis of SS-bis(4-benzo[15-crown-5])dithioglyoxime and its complexes with copper(II) nickel(II), cobalt(II), cobalt(III), palladium(II), platinum(II), and platinum(IV) Vefa Ahsen, Füsun Gökçeli and Özer Bekârolu, pp 1827 DOI:10.1039/DT9870001827

Electrochemical reactions of dichlorobis(aryl isocyanide)platinum(II) complexes Yasuhiro Yamamoto, Katsuo Takahashi, Kiyoshi Matsuda and Hiroshi Yamazaki, pp 1833 DOI:10.1039/DT9870001833

The methyl/trifluoromethyl substitution effect in boranes. A gas-phase electron diffraction and vibrational study of bis(dimethylamino)-(trifluoromethyl)borane and dimethylaminobis(trifluoromethyl)borane Reneé Hausser-Wallis, Heinz Oberhammer, Hans Bürger and Gottfried Pawelke, pp 1839 DOI:10.1039/DT9870001839

Bimetallic compounds of trans-cyclohexane-1,2-diamine-NNNN-tetra-acetate(cdta): structural and magnetic characterization of [(H2O)4Cu(cdta)Ni]·3H2O and [(H2O)5Ni(cdta)Cu]·H2O Amparo Fuertes, Carlos Miravitlles, Emilio Escrivá, Eugenio Coronado and Daniel Beltrán, pp 1847 DOI:10.1039/DT9870001847

Complex formation of beryllium(II) with salicylate and hydroxide ions in 1 mol dm-3 sodium perchlorate aqueous solution at 25 °C Masunobu Maeda, Yutaka Murata and Kaname Ito, pp 1853 DOI:10.1039/DT9870001853

Preparation and characterisation of dicarboxylatobis(-cyclopentadienyl)-tungsten(IV) complexes: a novel and convenient synthesis from [W(-C5H5)2H2] using molecular oxygen as a hydrogen acceptor Takashi Ito and Toshiyuki Nakano, pp 1857 DOI:10.1039/DT9870001857

Decarboxylation of vinylene carbonate at triosmium clusters; X-ray crystal structure of the µ3-formylmethylidene compound [Os3(CHCHO)(CO)10] Alejandro J. Arce, Antony J. Deeming, Michael B. Hursthouse and Nigel P. C. Walker, pp 1861 DOI:10.1039/DT9870001861

Complexes of ligands providing endogenous bridges. Part 3. Non-transition metal complexes of macrocycles derived from 2,6-diacetyl-4-methylphenol; the crystal structure of a mononuclear barium complex Neil A. Bailey, David E. Fenton, Patrick B. Roberts and Alison M. Walford, pp 1865 DOI:10.1039/DT9870001865

Three isomeric hydride compounds formed by protonation of decacarbonyl-bis(dimethylphenylphosphine)triosmium and the X-ray structures of two of these: 1,1- and 1,2-[Os3H(CO)10(PMe2Ph)2][PF6] Antony J. Deeming, Susan Donovan-Mtunzi, Shariff E. Kabir, Michael B. Hursthouse, K. M. Abdul Malik and Nigel P. C. Walker, pp 1869 DOI:10.1039/DT9870001869

Solid-state nuclear magnetic resonance spectroscopic study of -zirconium phosphate Nigel J. Clayden, pp 1877 DOI:10.1039/DT9870001877

Tetranuclear amido complexes of copper(I): a synthetic and structural study Sandro Gambarotta, Michela Bracci, Carlo Floriani, Angiola Chiesi-Villa and Carlo Guastini, pp 1883 DOI:10.1039/DT9870001883

A general synthetic route for platinum cluster compounds containing carbonyl and tertiary phosphine ligands and a study of their reactions with unsaturated inorganic molecules David G. Evans, Malcolm F. Hallam, D. Michael P. Mingos and Robert W. M. Wardle, pp 1889 DOI:10.1039/DT9870001889

Kinetic study of the homogeneous methanolysis of tetraphosphorus decasulphide Paul Bourdauducq and Michel C. Démarcq, pp 1897 DOI:10.1039/DT9870001897

Co-ordination chemistry of higher oxidation states. Part 23. Synthesis and properties of tetrahalogenoiridium(IV) complexes, [IrL2X4][X = Cl or Br; L = pyridine, PR3, AsR3, SbR3, SR2, or SeR2]. Crystal and molecular structure of trans-[Ir(AsEt3)2Br4] Robert A. Cipriano, William Levason, Derek Pletcher, Nigel A. Powell and Michael Webster, pp 1901 DOI:10.1039/DT9870001901

Exchange of cadmium into the sodium and ammonium forms of the natural zeolites clinoptilolite, mordenite, and ferrierite Maria Loizidou and Rodney P. Townsend, pp 1911 DOI:10.1039/DT9870001911

Reverse Bohr effect on the oxygen-binding affinity of heme embedded in a bilayer of liposome as a hemoglobin model: pH-induced oxygen uptake and evolution by aqueous synthetic lipid-heme solution Makoto Yuasa, Yuichiroh Tani, Hiroyuki Nishide and Eishun Tsuchida, pp 1917 DOI:10.1039/DT9870001917

Dithio-oxamides as ligands: crystal structures and vibrational analyses of bis(N,N-dicyclohexyldithio-oxamidato)palladium(II), bis(N,N-dibenzyldithio-oxamide) copper(II) diperchlorate, and dichloro(N,N-dimethyldithio-oxamide) zinc(II) and the carbon-13 nuclear magnetic resonance spectra of related compounds Luciano Antolini, Antonio C. Fabretti, Giancarlo Franchini, Ledi Menabue, Gian Carlo Pellacani, Herman O. Desseyn, Roger Dommisse and Hendrik C. Hofmans, pp 1921 DOI:10.1039/DT9870001921

Substitution reactions and luminescence spectra of the mixed complexes [ReClxBr6-x]2- Colin D. Flint and Peter F. Lang, pp 1929 DOI:10.1039/DT9870001929

Electrophilic attack on a series of dinuclear diphosphazane-bridged derivatives of iron by halogens. X-Ray crystal structures of [Fe2I(CO)5{µ-(MeO)2PN(Et)P(OMe)2}2]PF and [Fe2(µ-Br)(CO)4{µ-(PhO)2PN(Et)-P(OPh)2}2]PF6 John S. Field, Raymond J. Haines and Clifford N. Sampson, pp 1933 DOI:10.1039/DT9870001933

Activation energies for molecular tumbling and cyclopentadienyl rotation in [M(5-C5H5)(4-cod)](M = Rh or Ir; cod = cyclo-octa-1,5-diene) and the X-ray crystal structure of and bonding in [Rh(5-C5H5)(4-cod)] Harry Adams, Neil A. Bailey, Brian E. Mann, Brian F. Taylor, Colin White and Parvin Yavari, pp 1947 DOI:10.1039/DT9870001947

Regioselective synthesis of [1-B10H9(SH)]2- and [2-B10H9(SH)]2-: potential agents for boron-Neutron capture therapy of brain tumours Michihiro Komura, Hiroshi Nakai and Motoo Shiro, pp 1953 DOI:10.1039/DT9870001953

X-Ray structural study of [Fe(saltrien)]X (X = Br·2H2O, BPh4 or PF6). Origin of unusual magnetic behaviour of the spin-crossover complex [Fe(saltrien)]PF6 Yuzo Nishida, Koji Kino and Sigeo Kida, pp 1957 DOI:10.1039/DT9870001957

Reactions of rhodium(V) hydrido-silyl complexes with butyl-lithium and with lithium triethylhydridoborate Jose Ruiz, Brian E. Mann, Catriona M. Spencer, Brian F. Taylor and Peter M. Maitlis, pp 1963 DOI:10.1039/DT9870001963

The heteronuclear cluster chemistry of the group 1B metals. Part 4. Synthesis, structures, and dynamic behaviour of group 1B metal-ruthenium cluster compounds containing sulphur ligands. X-Ray crystal structures of [M2Ru3(µ3-S)(µ-Ph2PCH2PPh2)(CO)9](M = Cu or Au) Scott S. D. Brown, Stephen Hudson, Ian D. Salter and Mary McPartlin, pp 1967 DOI:10.1039/DT9870001967

Chiral recognition in ion pairing of an optically active tris(ethylenediamine)cobalt(III) cation and application to chromatographic resolution of metal complex anions Akira Tatehata, Masanori Fujita, Katsunori Ando and Yasuyuki Asaba, pp 1977 DOI:10.1039/DT9870001977

Transformation of [PPh4][Fe5RhC(CO)16] under hydroformylation conditions: synthesis and crystal structure of [PPh4][Fe3Rh3C(CO)15] Mahmoud Kalam Alami, Françoise Dahan and René Mathieu, pp 1983 DOI:10.1039/DT9870001983

The preparation and crystal structure of 5SbF3·3SbF5 W. A. Shantha Nandana, Jack Passmore, Peter S. White and Chi-Ming Wong, pp 1989 DOI:10.1039/DT9870001989

The co-ordination of small molecules by manganese(II) phosphine complexes. Part 8. Irreversible oxidation of trimethylphosphinemanganese(II) dihalides, [MnX2(PMe3)](X = Cl, Br, or I), to bis(trimethylphosphine)manganese(III) trihalides, [MnX3(PMe3)2]. X-Ray crystal structure of trans-tri-iodobis-(trimethylphosphine)manganese(III), the first example of a trigonal-bipyramidal manganese(III) tertiary phosphine complex Brian Beagley, Charles A. McAuliffe, Karl Minten and Robin G. Pritchard, pp 1999 DOI:10.1039/DT9870001999

The synthesis and reactions of palladium-iron carbonyl complexes containing bridging Ph2PCH2PPh2 ligands Grant B. Jacobsen and Bernard L. Shaw, pp 2005 DOI:10.1039/DT9870002005

Synthesis and characterisation of some new manganese(II) and manganese(III) complexes of tetradentate Schiff-base ligands and their reaction with molecular oxygen Charles A. McAuliffe, R. V. (Dick) Parish, Fathy M. Ashmawy, Rafaat M. Issa and Saiid A. Amer, pp 2009 DOI:10.1039/DT9870002009

Alkylation of tricarbonyliron complexes by trimethylsilyl cyanide: synthetic and kinetic studies Rikki P. Alexander, Tony D. James and G. Richard Stephenson, pp 2013 DOI:10.1039/DT9870002013

Metal ion-bridged intramolecular stacking interaction between the tryptophyl residue and the aromatic heterocyclic amine within the ternary complex (1,10-phenanthroline)(L-tryptophanato-O,N)copper(II) perchlorate-water (1/2.5): an X-ray study Katsuyuki Aoki and Hiroshi Yamazaki, pp 2017 DOI:10.1039/DT9870002017

Phosphorus-nitrogen compounds. Part 50. Further studies on the formation of bicyclic cyclotetraphosphazatetraene derivatives Sorab R. Contractor, Zeynel Klç and Robert A. Shaw, pp 2023 DOI:10.1039/DT9870002023

(-Benzene)bis(trimethylphosphine)iron: a useful precursor to polyene iron derivatives. Crystal structure of 2-4- : 2-4--1,1-bi(cyclohex-3-en-2-yl)-bis(trimethylphosphine)iron(II) Malcolm L. H. Green, Dermot O'Hare and Luet-Lok Wong, pp 2031 DOI:10.1039/DT9870002031

Insertion of 2,6-dimethylphenyl isocyanide into the U-N bond of [U(-C5H5)3(NEt2)]. Crystal structure of [U(-C5H5)3{C(NEt2)NC6H3Me2-2,6}] Pierino Zanella, Nicola Brianese, Umberto Casellato, Franco Ossola, Marina Porchia, Gilberto Rossetto and Rodolfo Graziani, pp 2039 DOI:10.1039/DT9870002039

Lamellar inorganic ion exchangers. Proton-copper(II) ion exchange in -titanium bis(hydrogenphosphate) Celia Alvarez, Ricardo Llavona, José R. García, Marta Suárez and Julio Rodríguez, pp 2045 DOI:10.1039/DT9870002045

Studies on borate, esters. Part 8. Interactions of cations with oxyacid anion-bridged esters of D-glucarate in alkaline media Martin van Duin, Joop A. Peters, Antonius P. G. Kieboom and Herman van Bekkum, pp 2051 DOI:10.1039/DT9870002051

Bis(organoimido)-complexes of tungsten(IV): the crystal and molecular structures of tetrachlorobis(t-butylamine)bis(t-butylimido)bis(µ-p-tolylimido)-ditungsten(VI) and tetrachlorobis(µ-phenylimido)-bis(t-butylamine) bis(t-butylimido)ditungsten(VI) Barry R. Ashcroft, Alastair J. Nielson, Donald C. Bradley, R. John Errington, Michael B. Hursthouse and Richard L. Short, pp 2059 DOI:10.1039/DT9870002059

Preparation and characterisation of mononuclear organoimido complexes of tungsten: X-ray crystal structures of [WCl4(NC6H4Me-p)(thf)], [P(CH2Ph)Ph3][WCl5(NC6H4Me-p)], and [WCl2(NPh)2(bipy)] Donald C. Bradley, R. John Errington, Michael B. Hursthouse, Richard L. Short, Barry R. Ashcroft, George R. Clark, Alastair J. Nielson and Clifton E. F. Rickard, pp 2067 DOI:10.1039/DT9870002067

Pentafluorophenyl complexes of palladium and platinum containing chelating, unidentate, or bridging Ph2PCH2PPh2 ligands Rafael Usón, Juan Forniés, Pablo Espinet, Rafael Navarro and Consuelo Fortuño, pp 2077 DOI:10.1039/DT9870002077

Notes. Carbon-13 nuclear magnetic resonance study of the properties of the unsaturated anion [Re3(µ-H)4(CO)9(NCMe)]- at low temperature Tiziana Beringhelli, Giuseppe D'Alfonso and Henriette Molinari, pp 2083 DOI:10.1039/DT9870002083

A trigonal bipyramidal pentaruthenium cluster, [Ru5(CO)3(µ3-CO)3(-C5H5)4] Selby A. R. Knox and Michael J. Morris, pp 2087 DOI:10.1039/DT9870002087

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700BX031

Issue 9

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FX033

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FP033

Thermal investigation and stereochemical studies of some cyclic diamine complexes of nickel(II), zinc(II), and cadmium(II) in the solid state Langonjam Kanhai Singh and Samiran Mitra, pp 2089 DOI:10.1039/DT9870002089

Synthesis, characterisation, and aquation kinetics of [N-(o-carboxyphenyl)iminodiacetato](glycinato)chromate(III) complex ion in acidic media Chínmay Chatterjee and Sanjiv Vasant Phadke, pp 2095 DOI:10.1039/DT9870002095

Reaction of elemental sulphur with bis(pentamethylcyclopentadienyl)vanadium derivatives: disulphido and µ-sulphido complexes. Crystal structures of [V(-C5Me5)2(S2)] and [V2(-C5Me5)2Cl2(µ-S)2] Carlo Floriani, Sandro Gambarotta, Angiola Chiesi-Villa and Carlo Guastini, pp 2099 DOI:10.1039/DT9870002099

Photochemical reduction of carbon dioxide to carbon monoxide in water using a nickel(II) tetra-azamacrocycle complex as catalyst Janice L. Grant, Kisholoy Goswami, Larry O. Spreer, John W. Otvos and Melvin Calvin, pp 2105 DOI:10.1039/DT9870002105

Reactions of main group homopolynuclear cations with transition-metal carbonyls. Stabilisation of µ-Se22+ and 3-Te32+ dicationic ligands and crystal structures of [Mo(Te3)(CO)4][SbF6]2 and [FeW(Se2)(CO)8][SbF6]2 Aline Seigneurin, Thomas Makani, Deborah J. Jones and Jacques Rozière, pp 2111 DOI:10.1039/DT9870002111

Platinum(II) complexes with ligands (RO)2PCH2P(OR)2(R = Me, Et, Ph, or C6H4Me-4); crystal structure of cis,cis-[Pt2Me4{µ-(EtO)2PCH2P(OEt)2}2] Ljubica Manojlovi-Muir, Ian R. Jobe, Beverley J. Maya and Richard J. Puddephatt, pp 2117 DOI:10.1039/DT9870002117

Studies in Werner clathrates. Part 4. Structures of tetrakis(4-ethylpyridine)di-isothiocyanatonickel(II) and its clathrates with p-, m-, and o-xylene, carbon disulphide, and carbon tetrachloride Madeleine H. Moore, Luigi R. Nassimbeni and Margaret L. Niven, pp 2125 DOI:10.1039/DT9870002125

The syntheses and crystal structures of two iminolithium adducts: (Ph2CNLi·NC5H5)4, a tetrameric pseudo-cubane formed by stacking two (LiN)2 four-membered rings, and [But2CNLi·OP(NMe2)3]2, a dimer prevented sterically from stacking Donald Barr, Ronald Snaith, William Clegg, Robert E. Mulvey and Kenneth Wade, pp 2141 DOI:10.1039/DT9870002141

The hydrolysis of metal ions. Part 10. Kinetic and equilibrium measurements of molybdenum(VI) Paul L. Brown, Michael E. Shying and Ronald N. Sylva, pp 2149 DOI:10.1039/DT9870002149

Methylindium dialkylamido compounds: mono- and bis-dialkylamides involving four- and five-co-ordinated indium(III). X-Ray crystal structures of {Me2In[N(CH2)2N(Me)CH2CH2]}2, MeIn[MeNC(CH)4N]2, and MeIn{[MeN(CH2)2NMe]InMe2}2 Atta M. Arif, Donald C. Bradley, Helen Dawes, Dario M. Frigo, Michael B. Hursthouse and Bilquis Hussain, pp 2159 DOI:10.1039/DT9870002159

Synthesis and reactions of the co-ordinatively unsaturated hexafluorobut-2-yne complex [WBr2(CO)(CF3CCCF3)2]. The crystal and molecular structure of [{W[C(CF3)C(CF3)P(OEt)2O](µ-Br)(CO)(CF3CCCF3)}2] Jack L. Davidson, Giuseppe Vasapollo, John C. Millar and Kenneth W. Muir, pp 2165 DOI:10.1039/DT9870002165

Some chemistry of the heterobimetallic complexes [(OC)3Mo(µ-dppm)2Rh(CO)Cl] and [(OC)3Mo(µ-dppm)2M(CO)2]PF6(M = Rh or Ir, dppm = Ph2PCH2PPh2). Structure of [(OC)3Mo(µ-dppm)2(µ-CCMe)Rh(CO)] Adrian Blagg, Richard Robson, Bernard L. Shaw and Mark Thornton-Pett, pp 2171 DOI:10.1039/DT9870002171

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 62. Synthesis of penta-, hexa-, and hepta-heteronuclear metal cluster compounds involving tungsten or molybdenum with platinum or nickel: crystal structures of the chain compounds [Pt3W3(µ-CMe)(µ3-CMe)2(CO)6(cod)(-C5Me5)3]·0.5CH2Cl2 and [Pt3W4(µ-CC6H4Me-4)2(µ3-CC6H4Me-4)2(CO)8(-C5H5)4] Simon J. Davies, Gregory P. Elliott, Judith A. K. Howard, Christine M. Nunn and F. Gordon A. Stone, pp 2177 DOI:10.1039/DT9870002177

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 63. Synthesis of eight-membered-ring metallacycles: X-ray crystal structures of [Pt4W4(µ-CR)(µ3-CR)3(µ-CO)(CO)7(-C5H5)4]·CH2Cl2, [Ni2Pt2W4(µ-CR)(µ3-CR)3(µ-CO)(CO)7(-C5H5)4]·CH2Cl2(R = C6H4Me-4), and [Ni2Pt2W4(µ3-CPh)4(CO)8(-C5H5)4] Gregory P. Elliott, Judith A. K. Howard, Takaya Mise, Christine M. Nunn and F. Gordon A. Stone, pp 2189 DOI:10.1039/DT9870002189

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 64. Addition of methylene groups to iron-molybdenum complexes; crystal structures of [FeMo(µ-CH2){µ-:-C(C6H4Me-4)CH2}(CO)5(-C5H5)] and [FeMo{µ-C(C6H4Me-4)C(OMe)C(H)}(CO)5(-C5H5)] M. Esther Garcia, N. Hoa Tran-Huy, John C. Jeffery, Paul Sherwood and F. Gordon A. Stone, pp 2201 DOI:10.1039/DT9870002201

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 65. Reactions of the complexes [FeW(µ-CR)(CO)5(-C5Me5)] and [Fe2W(µ3-CR)(µ-CO)(CO)8(-C5Me5)](R = C6H4Me-4) with alkynes RC2R(R= Me or Ph); crystal structures of [FeW{µ-C(R)C(O)C(Me)C(Me)}(CO)5(-C5Me5)]·CH2Cl2 and [FeW{µ-C(R)C(Et)C(H)C(Me)C(Me)}(µ-CO)(CO)3(-C5Me5)] Joachim Hein, John C. Jeffery, Paul Sherwood and F. Gordon A. Stone, pp 2211 DOI:10.1039/DT9870002211

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 66. Carbaboranetungsten-platinum complexes. Polyhedral rearrangements of a 12-vertex cage system; crystal structures of [PtW(CO)2(PEt3)2{µ6-C2B9H8(CH2C6H4Me-4)Me2}]·CH2Cl2, [PtW(µ-H){µ-:5- C2B9H7(CH2C6H4-Me-4)Me2}(CO)2(PMe3)(PEt3)2], and related compounds Michael J. Attfield, Judith A. K. Howard, Alasdair N. de M. Jelfs, Christine M. Nunn and F. Gordon A. Stone, pp 2219 DOI:10.1039/DT9870002219

Crystal structures and properties of [Au(phen){(CN)0.92Br0.08}2]Br and [Au(phen)(CN){(CN)0.82Br0.18}]·0.5trans-[Au(CN)2Br2]·0.5Br·phen (phen = 1,10-phenanthroline) obtained by disproportionation of five-co-ordinate bromodicyano(1,10-phenanthroline)gold(III). Two examples of secondary co-ordination and CN/Br disorder in square-planar gold(III) complexes Giampaolo Marangoni, Bruno Pitteri, Valerio Bertolasi, Valeria Ferretti and Gastone Gilli, pp 2235 DOI:10.1039/DT9870002235

The co-ordination of small molecules by manganese(II) phosphine complexes. Part 9. The reaction of ethylene with [MnX2L](X = Cl, Br, or I; L = PPrn3, PBun3, PPhMe2, PPhEt2, or PPh3) in tetrahydrofuran solution George A. Gott and Charles A. McAuliffe, pp 2241 DOI:10.1039/DT9870002241

A reversible metal framework rearrangement in high-nuclearity osmium-platinum cluster compounds. X-Ray crystal structures of [Os6Pt(CO)17(µ3-NCMe)(C8H12)], [Os6Pt(CO)17(µ4-NCMe)(C8H12)](C8H12= cyclo-octa-1,5-diene), and [Os6(CO)19(µ3-NCMe)]: compounds with novel metal-acetonitrile bonding modes Christiane Couture and David H. Farrar, pp 2245 DOI:10.1039/DT9870002245

Synthesis, reactivity, and X-ray crystal structures of [Os6Pt2H2(CO)16(µ-C8H10)(C8H12)]·CH2Cl2 and [Os6H(CO)16(µ-C8H11)]. Model compounds for C-H activation Christiane Couture and David H. Farrar, pp 2253 DOI:10.1039/DT9870002253

Transition metal Schiff-base complexes as ligands in tin chemistry. Part 1. A tin-119 Mössbauer spectroscopic investigation of the adducts SnX4·ML, SnMe2(NCS)2·ML, and SnRCl3·ML (X = halide; M = CuII or NiII; L = quadridentate Schiff-base ligand; R = phenyl or n-butyl) Desmond Cunningham, Joan Fitzgerald and Mark Little, pp 2261 DOI:10.1039/DT9870002261

Crystal structure of tris(quinoxaline-2,3-dithiolato)molybdate(V); a distorted trigonal prismatic complex Stephen Boyde, C. David Garner, John H. Enemark, Michael A. Bruck and John G. Kristofzski, pp 2267 DOI:10.1039/DT9870002267

Synthesis of chelate stabilised alcohol- and alkoxo-platinum(II) complexes. X-Ray crystal structure of [Pt(PPh2CH2CMe2O)2]·3.5H2O Nathaniel W. Alcock, Andrew W. G. Platt and Paul Pringle, pp 2273 DOI:10.1039/DT9870002273

Notes. The synthesis, crystal and molecular structure of a copper(I) complex of 2(1H)-pyridinethione: an intermediate in Cu4S4 heterocubane build up Edwin C. Constable and Paul R. Raithby, pp 2281 DOI:10.1039/DT9870002281

Attempted synthesis of osmium(VI) and iridium(VI) thiofluorides; the preparation of OsF5·SF4 and IrF5·SF4 John H. Holloway and John Rook, pp 2285 DOI:10.1039/DT9870002285

Syntheses and properties of complexes of a conjugated macrocyclic hexamine with lanthanide nitrates Colin J. Gray and F. Alan Hart, pp 2289 DOI:10.1039/DT9870002289

Addition and corrections Shivamurti A. Chimatadar, Sharanappa T. Nandibewoor, Mahantesh I. Sambrani and Javali R. Raju, pp 2291 DOI:10.1039/DT9870002291

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700BX035

Issue 10

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FX037

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FP037

Preparation and properties of the tungsten(V) aqua dimer [W2O4(H2O)6]2+: kinetic studies on the 1:1 reaction with NCS- Christopher Sharp, Elaine F. Hills and A. Geoffrey Sykes, pp 2293 DOI:10.1039/DT9870002293

Reactivity of rhenium(I) pseudo-allyl complexes with heterocumulenes such as RNCS (R = Me or Ph, p-MeC6H4) and PhNCO. Part 1. Crystal structure determination of two isostructural monothio- and dithio-carbamate rhenium(I) complexes co-crystallized as [Re(CO)2(PPh3)2{SC(NHPh)-S}]·[Re(CO)2(PPh3)2{O-C(NHPh)S}] Roberto Rossi, Andrea Marchi, Adriano Duatti, Luciano Magon, Umberto Casellato and Rodolfo Graziani, pp 2299 DOI:10.1039/DT9870002299

Preparation and crystal structures of bis(tetraphenylarsonium) tris(oxalato)technetate(IV), and tetraphenylarsonium tris(benzene-1,2-dithiolato)technetate(V): octahedral versus trigonal-prismatic geometry for tris-bidentate complexes of technetium Silvano F. Colmanet, Geoffrey A. Williams and Maureen F. Mackay, pp 2305 DOI:10.1039/DT9870002305

The relative nucleophilic efficiency of water and dimethyl sulphoxide in the aqueous substitution of aquapentacyanocobaltate(III) and chloropentacyanocobaltate(III) Moustafa H. M. Abou-El-Wafa, Michael G. Burnett and John F. McCullagh, pp 2311 DOI:10.1039/DT9870002311

Oxygen-17 and aluminium-27 nuclear magnetic resonance spectroscopic investigations of aluminium(III) hydrolysis products Arthur R. Thompson, Ajit C. Kunwar, Herbert S. Gutowsky and Eric Oldfield, pp 2317 DOI:10.1039/DT9870002317

Analysis and prediction of acid-base reactions between oxides and oxysalts using the optical basicity concept Lesley S. Dent-Glasser and John A. Duffy, pp 2323 DOI:10.1039/DT9870002323

Molten lithium carbonate-sodium carbonate-potassium carbonate eutectic: electronic spectroscopy of first-row transition metal compounds Nicholas A. Carthey and David H. Kerridge, pp 2329 DOI:10.1039/DT9870002329

Gold-197 Mössbauer spectra of some gold-ruthenium cluster compounds Laila S. Moore, R. V. (Dick) Parish, Scott S. D. Brown and Ian D. Salter, pp 2333 DOI:10.1039/DT9870002333

The reaction of di-2-pyridyl ketone with antimony(III) fluoride. Preparation, properties, Mössbauer spectrum and crystal structure of difluoro(methoxydi-2-pyridylmethoxo-NNO)antimony(III) Giuseppe Alonzo, Nuccio Bertatzi, Gabriella Bombieri and Giuseppe Bruno, pp 2337 DOI:10.1039/DT9870002337

An electron spin resonance study of the dioxygen adduct of bis[2-(2-pyridylmethylenehydrazonomethyl)phenolato]cobalt(II) and related materials Michael Tirant, Thomas D. Smith and John R. Pilbrow, pp 2341 DOI:10.1039/DT9870002341

Axially asymmetric metal alkyls. Part 5. Synthesis and reduction to ZrIII species of Group 4 metallepines [ML(-C5H5)2][L =(2-CHRC6H4)22-, R = H, M = Ti, Zr, or Hf)], isomers of [ZrL(-C5H5)2](R = SiMe3), and meso-[M{1,8-(CHSiMe3)2C10H6}(-C5H5)2](M = Zr or Hf); X-ray crystal structures of [TiL(-C5H5)2](R = H) and - and -RS-[ZrL(-C5H5)2](R = SiMe3) Lutz M. Engelhardt, Wing-Por Leung, Rocco I. Papasergio, Colin L. Raston, Paul Twiss and Allan H. White, pp 2347 DOI:10.1039/DT9870002347

A structural comparison of the two polymorphs of Sr2Co2O5 by cobalt K-edge extended X-ray absorption fine structure spectroscopy Peter D. Battle, Terence C. Gibb and Andrew T. Steel, pp 2359 DOI:10.1039/DT9870002359

Aspects of germanium-73 nuclear magnetic resonance spectroscopy Alistair L. Wilkins, Philip J. Watkinson and Kenneth M. Mackay, pp 2365 DOI:10.1039/DT9870002365

Ab initio study of stable bis(carbon dioxide)molybdenum complexes Enrique Sánchez Marcos, Rosa Caballol, Georges Trinquier and Jean-Claude Barthelat, pp 2373 DOI:10.1039/DT9870002373

Metal(II) hexafluoroantimonates: preparation and characterization of MF2·2SbF5(M = Mg, Ni, Zn, Fe, Co, Cu, Cr, Ag, Cd, or Pb) and the X-ray structure determination of AgF2·2SbF5 Darja Gantar, Ivan Leban, Boris Frlec and John H. Holloway, pp 2379 DOI:10.1039/DT9870002379

Synthesis, molecular structure, and nuclear magnetic resonance spectra of the anionic monocarbametallaborane [NEt4][(CO)3(PPh3)(OH)-closo-MoCB10H10]·CH2Cl2 Xavier L. R. Fontaine, Norman N. Greenwood, John D. Kennedy, Peter I. MacKinnon and Ian Macpherson, pp 2385 DOI:10.1039/DT9870002385

Polymeric thiolate complexes of Group 12 metals. Crystal and molecular structures of catena-[µ-(3-dimethylammonio-1-propanethiolate)]-dichloro-cadmium(II) and bis[3-(dimethylammonio)propyl] disulphide tetrabromocadmate(II) Isidre Casals, Pilar Gonzaález-Duarte, Joan Sola, Mercè Font-Bardía, Joaquim Solans and Xavier Solans, pp 2391 DOI:10.1039/DT9870002391

Aqua(2,2-bipyridyl)difluorocopper(II) dihydrate: X-ray structure reveals short hydrogen bonds and other unusual features John Emsley, Muhammad Arif, Paul A. Bates and Michael B. Hursthouse, pp 2397 DOI:10.1039/DT9870002397

Determination of the relative signs of 2J(31P-31P) in complexes of tungsten(0) and molybdenum(0) using two-dimensional [31P-31P]-COSY-45 nuclear magnetic resonance chemical shift correlation Xavier L. R. Fontaine, John D. Kennedy, Bernard L. Shaw and José M. Vila, pp 2401 DOI:10.1039/DT9870002401

Synthesis and crystal structure of tris(morpholinecarbodithioato-S,S)manganese(IV)pentaiodide-dichloromethane (2/1) Paola Deplano, Emanuele F. Trogu, Francesco Bigoli and Maria Angela Pellinghelli, pp 2407 DOI:10.1039/DT9870002407

Structure and solvation of mercury(II) iodide and bromide in tetrahydrothiophene solution Magnus Sandström, Ingmar Persson and Peter L. Goggin, pp 2411 DOI:10.1039/DT9870002411

Pentamethylcyclopentadienylrhodaborane chemistry. Part 3. The reaction of [{Rh(5-C5Me5)Cl2}2] with closo-[B10H10]2- and arachno-B10H12-6,9-(PMe2Ph)2, and the characterisation of some novel rhodaboranes by X-ray diffraction analysis and nuclear magnetic resonance spectroscopy Xavier L. R. Fontaine, Hayat Fowkes, Norman N. Greenwood, John D. Kennedy and Mark Thornton-Pett, pp 2417 DOI:10.1039/DT9870002417

Beryllium(II) hydrolysis in 3.0 mol dm-3 perchlorate Jordi Bruno, pp 2431 DOI:10.1039/DT9870002431

Studies of metal carbonate equilibria. Part 15. The beryllium(II)-water-carbon dioxide(g) system in acidic 3.0 mol dm-3 perchlorate media Jordi Bruno, Ingmar Grenthe, Magnus Sandström and Diego Ferri, pp 2439 DOI:10.1039/DT9870002439

Studies of metal carbonate equilibria. Part 16. The beryllium(II)-water-carbon dioxide(g) system in neutral-to-alkaline 3.0 mol dm-3 perchlorate media at 25 °C Jordi Bruno, Ingmar Grenthe and Maria Muñoz, pp 2445 DOI:10.1039/DT9870002445

Preparation, crystal and molecular structure, and antimony-121 Mössbauer spectrum of trifluoro(1,10-phenanthroline)(thiourea)antimony(III) Gabriella Bombieri, Giuseppe Bruno, Franco Nicoló, Giuseppe Alonzo and Nuccio Bertazzi, pp 2451 DOI:10.1039/DT9870002451

Iron-ligand bonding properties of synthetic iron-porphyrin complexes with oxygen transporting ability in aqueous media Eishun Tsuchida, Hiromi Maeda, Makoto Yuasa, Hiroyuki Nishide, Hidenari Inoue and Tsuneo Shirai, pp 2455 DOI:10.1039/DT9870002455

The cyclometallation of benzoic acid to give rhodium, iridium, and osmium C,O-benzoates. X-Ray structure determination of the dibenzoate [(C5Me5)Rh(OOCPh)2(H2O)] Jonathan M. Kisenyi, Glenn J. Sunley, Javier A. Cabeza, Arnold J. Smith, Harry Adams, Nicholas J. Salt and Peter M. Maitlis, pp 2459 DOI:10.1039/DT9870002459

Characterizations of the redox orbitals of mixed-ligand 2,2-bipyridine-2-(2-pyridyl)quinoline ruthenium(II) complexes C. Drew Tait, Thomas M. Vess, M. Keith DeArmond, Kenneth W. Hanck and Dennis W. Wertz, pp 2467 DOI:10.1039/DT9870002467

Substitution reactions of the osmium(I) dinuclear compound [Os2(MeCO2)2(CO)6]. X-Ray crystal structure of [N(PPh3)2][Os2(MeCO2)2Cl(CO)5] Antony J. Deeming, Neil P. Randle, Michael B. Hursthouse and Richard L. Short, pp 2473 DOI:10.1039/DT9870002473

Phosphorus-nitrogen compounds. Part 51. Carbon-13 and phosphorus-31 nuclear magnetic resonance properties of phenylphosphonothioic di(monoalkylamides). Determination of aromatic substituent constants by 13C nuclear magnetic resonance spectroscopy Harold G. Parkes, Robert A. Shaw and David A. Watkins, pp 2479 DOI:10.1039/DT9870002479

Notes. Kinetics of reduction of tris(ethylenediamine)cobalt(III) by ethylenediamine-NNNN-tetra-acetatochromate(II) Michael G. Segal, pp 2485 DOI:10.1039/DT9870002485

Infrared spectroscopic studies of uranyl(VI) species adsorbed from aqueous [UO2(CO3)3]4- solutions on to a polymer bearing amidoxime groups Takahiro Hirotsu, Shunsaku Katoh, Kazuhiko Sugasaka, Manabu Sen and Takaharu Itagaki, pp 2489 DOI:10.1039/DT9870002489

Dynamics of oxygen binding to modified iron(II)-porphyrin complexes embedded in the bilayer of phospholipid liposome Makoto Yuasa, Hiroyuki Nishide and Eishun Tsuchida, pp 2493 DOI:10.1039/DT9870002493

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700BX039

Issue 11

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FX041

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FP041

The co-ordination of small molecules by manganese(II) phosphine complexes. Part 10. The reversible binding of nitric oxide by [MnX2(PR3)](X = Cl, Br, I; R3= Prn3, Bun3, PhMe2, PhEt2) in the solid state and in tetrahydrofuran solution. The effect of the nature of the halogen and the phosphine on stability and reversibility David S. Barratt and Charles A. McAuliffe, pp 2497 DOI:10.1039/DT9870002497

Preparation, nuclear magnetic resonance spectra, and X-ray diffraction study of bis(N-benzylacetimidic acid ethyl ester)dichloropalladium(II) Kevin J. McCullough, Peter Bladon, Tomasz Janecki and Peter Pauson, pp 2503 DOI:10.1039/DT9870002503

A realistic model for heme-containing catalases and peroxidases: the X-ray structural characterisation of a non-porphyrin iron(III) macrocyclic complex, and the mechanism of its peroxidation of aromatic substrates Colin J. Cairns, Roger A. Heckman, Alexandra C. Melnyk, William M. Davis and Daryle H. Busch, pp 2505 DOI:10.1039/DT9870002505

Disproportionation, electrochemistry, and electronic coupling involving mononuclear and binuclear cobalt phthalocyanine derivatives Wei Liu, Michael R. Hempstead, W. Andrew Nevin, Milan Melník, Alfred B. P. Lever and Clifford C. Leznoff, pp 2511 DOI:10.1039/DT9870002511

Complexes of ligands providing endogenous bridges. Part 4. Copper(II) complexes of macrocyclic Schiff bases derived from 2,6-diacetylpyridine and 1,n-diamino-n-hydroxyalkanes (n,n= 3,2; 4,2; and 5,3): synthesis, properties, and structures Neil A. Bailey, David E. Fenton, Richard Moody, Cecilia O. Rodriguez de Barbarin, I. Nina Sciambarella, Jean Marc Latour, Daniele Limosin and Vickie McKee, pp 2519 DOI:10.1039/DT9870002519

Dithiocarbamates of tungsten(III)and tungsten(IV) David A. Brown, William K. Glass, Hani J. Toma and W. Earle Waghorne, pp 2531 DOI:10.1039/DT9870002531

Studies involving mixed donor macrocyclic ligands. Comparative X-ray diffraction, infrared, and fast atom bombardment mass spectrometric studies of the nickel thiocyanate complexes of three O2N3-donor macrocycles Kenneth R. Adam, Anthony J. Leong, Leonard F. Lindoy, Brian J. McCool, Alfred Ekstrom, Imants Liepa, P. Alexander Harding, Kim Henrick, Mary McPartlin and Peter A. Tasker, pp 2537 DOI:10.1039/DT9870002537

Studies of metal-ion recognition. The interaction of COII, NiII, and CuII with new oxygen–nitrogen donor macrocycles; X-ray structures of complexes of CuII and NiII with a 15-membered O2N3 derivative David E. Fenton, Brian P. Murphy, Anthony J. Leong, Leonard F. Lindoy, Alan Bashall and Mary McPartlin, pp 2543 DOI:10.1039/DT9870002543

Formation of a (4 + 4) Schiff-base macrocyclic ligand by a template rearrangement. Crystal and molecular structures of two tetranuclear manganese(II) complexes Sally Brooker, Vickie McKee, William B. Shepard and Lewis K. Pannell, pp 2555 DOI:10.1039/DT9870002555

Molecular mechanics studies of a series of dicopper complexes of a 20-membered macrocycle containing differing types of bridges between the metal centres Michael G. B. Drew and Paul C. Yates, pp 2563 DOI:10.1039/DT9870002563

Kinetic studies on 1 : 1 electron-transfer reactions involving blue copper proteins. Part 14. Reactions of poplar plastocyanin with inorganic complexes Martin P. Jackman, Joseph McGinnis, A. Geoffrey Sykes, Charles A. Collyer, Mitsuo Murata and Hans C. Freeman, pp 2573 DOI:10.1039/DT9870002573

Copper(I) and copper(II) compounds of a dinucleating, octadentate tetrakisbenzimidazole ligand. Crystal and molecular structures of three dihalogeno{1,8-bis[bis(1-methylbenzimidazol-2-ylmethyl)amino]-3,6-dioxaoctane}dicopper(II) bis(anion) compounds (halogen = F, Cl, or Br; anion = BF4, CF3SO3, or Cl) Jacobus Van Rijn, Jan Reedijk, Mechtild Dartmann and Bernt Krebs, pp 2579 DOI:10.1039/DT9870002579

Complexes of cobalt(II) and nickel(II) with 3- and 4-acetylpyridine M. Fermamda Cabral and Joăo de O. Cabral, pp 2595 DOI:10.1039/DT9870002595

Metallo-ligands containing terminal oxygen donors bonded to a manganese–carbonyl moiety Mark Mason, Ding-Xue Kang, Irene Cihon, Andy Kintz, Elliott L. Blinn, Marvin Tegen and Paul M. Treichel, pp 2599 DOI:10.1039/DT9870002599

Synthetic and equilibrium studies on copper(II), nickel(II), and palladium(II) complexes of N,N,N,N-tetrakis(2-hydroxyethyl)-1,4,8,11-tetra-azacyclotetradecane (L); kinetics of the acid dissociation of the copper(II) complex and X-ray structural characterisation of the nickel(II) complex [NiLH–1][ClO4] Robert W. Hay, Mahesh P. Pujari, W. Thomas Moodie, Scott Craig, David T. Richens, Angelo Perotti and Luciano Ungaretti, pp 2605 DOI:10.1039/DT9870002605

Preparation and spectroscopic study of functionally substituted cyclopentadienides of thallium(I), potassium, rhodium(I), and iridium(I) Michael Arthurs, Hafid K. Al-Daffaee, John Haslop, Gina Kubal, Matthew D. Pearson, Peter Thatcher and Eirian Curzon, pp 2615 DOI:10.1039/DT9870002615

New iron(II) spin-crossover complexes with heterocyclic amine-derived ligands and STEPS experiments on photogenerated metastable high-spin states Anthony W. Addison, Sudhir Burman, Curtis G. Wahlgren, Odatt A. Rajan, Teresa M. Rowe and Ekkehard Sinn, pp 2621 DOI:10.1039/DT9870002621

Bicyclam [6,6-bi(1,4,8,11-tetra-azacyclotetradecane)]: a ditopic receptor for homo- and hetero-bimetallic complexes Luigi Fabbrizzi, Laura Montagna, Antonio Poggi, Thomas A. Kaden and Liselotte C. Siegfried, pp 2631 DOI:10.1039/DT9870002631

Subvalent Group 14 metal compounds. Part 10. Syntheses and structures of some bis(metallo)plumbylenes [Pb{Mo(R)(CO)3}2(OC4H8)][R =-C5H5, -C5H3(SiMe3)2-1,3, or -C5Me5]; X-ray crystal structures of [Pb{Mo(-C5Me5)(CO)3}2(OC4H8)] and [{Pb[Mo(-C5Me5)(CO)3][Mo(-C5Me5)(CO)2(µ-CO)]}2] Peter B. Hitchcock, Michael F. Lappert and Michael J. Michalczyk, pp 2635 DOI:10.1039/DT9870002635

Nickel(II), copper(II), and zinc(II) complexes of penta-azamacrocyclic ligands. Crystal and molecular structure of 3,6,9,12-tetramethyl-3,6,9,12,18-penta-azabicyclo[12.3.1]octadeca-1(18),14,16-trienezinc(II) perchlorate Nathaniel W. Alcock, Peter Moore, Hadi A. A. Omar and C. James Reader, pp 2643 DOI:10.1039/DT9870002643

The mechanism of fluxionality of [Ru(6-C8H8)(4-C7H8)], [Ru(4-C8H8)(4-C7H8)L][L = PEt3 or P(OMe)3], and [Os(6-C8H8)(4-C8H12)](C8H8= cyclo-octatetraene, C7H8= norborna-2,5-diene, and C8H12= cyclo-octa-1,5-diene) Maria Grassi, Brian E. Mann, Barry T. Pickup and Catriona M. Spencer, pp 2649 DOI:10.1039/DT9870002649

Monometallic, homo- and hetero-bimetallic complexes based on redox active tris(3,5-dimethylpyrazolyl)borato molybdenum and tungsten nitrosyls. Part 6. Synthesis and electrochemistry of complexes containing saturated heterocyclic amide ligands. X-Ray crystal and molecular structure of [{Mo(NO)[HB(Me2pz)3]Cl}2(NC4H8N)] Najat Al Obaidi, Thomas A. Hamor, Christopher J. Jones, Jon A. McCleverty and Keith Paxton, pp 2653 DOI:10.1039/DT9870002653

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 67. Reactions of the salts [X][W(CR)(CO)2(5-C2B9H9Me2)][X = P(CH2Ph)Ph3, R = C6H4Me-4; X = NEt4, R = Ph] with bis(cyclo-octa-1,5-diene)platinum Franz-Erich Baumann, Judith A. K. Howard, Owen Johnson and F. Gordon A. Stone, pp 2661 DOI:10.1039/DT9870002661

The reaction of [Mn2{µ-:2-C(R)CHR}(µ-PPh2)(CO)7](R = H or Ph) with nucleophiles: X-ray crystal structures of [N(PPh3)2][Mn2(µ-H){µ-C(O)C(Ph)CHPh}(µ-PPh2)(CO)6], [Mn2{PPh2C(Ph)CHPh}(CO)9], [Mn2(µ-PPh2CHCH2)(CO)8], [Mn2{µ-C(O)C(Ph)CHPh}(µ-PPh2)(CO)6(CNBut)2], [Mn2{µ-:2-C(Ph)CHPh}(µ-PPh2)(CO)6(CNBut)], and [Mn(µ-PPh2CHCH2)(CO)7(PEt3)] Kim Henrick, Mary McPartlin, Jonathan A. Iggo, Alan C. Kemball, Martin J. Mays and Paul R. Raithby, pp 2669 DOI:10.1039/DT9870002669

New decomposition pathways for formyl complexes of ruthenium(II) David S. Barratt and David J. Cole-Hamilton, pp 2683 DOI:10.1039/DT9870002683

Synthesis and study of monomeric and dimeric amidine complexes of nickel(II) and platinum(II). Crystal structure of bis(N,N-diphenylbenzamidino)platinum(II), [Pt{PhNC(Ph)NPh}2] James Barker, Melvyn Kilner and Robert O. Gould, pp 2687 DOI:10.1039/DT9870002687

A two-dimensional nuclear magnetic resonance exchange study of the fluxionality of [PtIMe3(MeSCH2CH2SEt)] Edward W. Abel, Ian Moss, Keith G. Orrell, Vladimir ik and David Stephenson, pp 2695 DOI:10.1039/DT9870002695

Organic chemistry of dinuclear metal centres. Part 9. Diruthenium complexes of buta-1,3-diene. X-Ray crystal structure of [Ru2(CO)2(µ-s-trans-2:2-CH2CHCHCH2)(-C5H5)2] Glenn S. Lewandos, Selby A. R. Knox and A. Guy Orpen, pp 2703 DOI:10.1039/DT9870002703

The formation and characterisation of (2-ethene)hydrido(5-pentamethylcyclopentadienyl)(trisubstituted-silyl)rhodium complexes; intermediates in catalytic dehydrogenative silylation reactions Jose Ruiz, Peter O. Bentz, Brian E. Mann, Catriona M. Spencer, Brian F. Taylor and Peter M. Maitlis, pp 2709 DOI:10.1039/DT9870002709

Synthesis, reactions, and dynamic nuclear magnetic resonance studies of 2-vinyl complexes of molybdenum and tungsten, [M{3-C(CF3)C(CF3)(L–L)}(CF3CCCF3)(5-C5H5)](L–L = MeCO2–, Me2PS2–, Et2NCS2–, or Me2NCS2–) Jack L. Davidson, pp 2715 DOI:10.1039/DT9870002715

Reactions of tetra-µ-carboxylato-diruthenium(II,II) compounds. X-Ray crystal structures of Ru2(µ-O2CCF3)4(thf)2, Ru2(µ-O2CR)4(NO)2(R = Et or CF3), and {Na3[Ru2(µ-O2CO)4]·6H2O}n Alan J. Lindsay, Geoffrey Wilkinson, Majid Motevalli and Michael B. Hursthouse, pp 2723 DOI:10.1039/DT9870002723

Reduction–oxidation properties of organotransition-metal complexes. Part 27. Mixed-valence triazenido-bridged di-iridium compounds Neil G. Connelly and Gabriel Garcia, pp 2737 DOI:10.1039/DT9870002737

Heteronuclear complexes containing Group 6 transition metals; chemical, spectroscopic, and theoretical studies on some binuclear complexes and the X-ray crystal structure determination of [WNi(CO)3(PPh3)2(5-C5H5)] Laurence Carlton, W. Edward Lindsell, Kevin J. McCullough and Peter N. Preston, pp 2741 DOI:10.1039/DT9870002741

Rhodium(I)–iron(0) carbonyl complexes containing one bridging Ph2PCH2PPh2 ligand, including the formation of a tetranuclear cluster from a heterobimetallic precursor: crystal structures of [(OC)4Fe(µ-Ph2PCH2PPh2)RhCl(CO)] and [Fe2Rh2(µ-Ph2PCH2PPh2)2(CO)8] Grant B. Jacobsen, Bernard L. Shaw and Mark Thornton-Pett, pp 2751 DOI:10.1039/DT9870002751

Isometallocenes. Part 1. Polymethylated isocobaltocenium salts; a general route to [Co(C4Me4)(arene)] Malcolm R. Cook, Peter Härter, Peter L. Pauson and Ján raga, pp 2757 DOI:10.1039/DT9870002757

Gold–boron chemistry. Part 1. Synthetic, structural, and spectroscopic studies on the compounds [5,6-µ-(AuPR3)-nido-B10H13](R = cyclo-C6H11 or C6H4Me-2) Andrew J. Wynd, Alistair J. McLennan, David Reed and Alan J. Welch, pp 2761 DOI:10.1039/DT9870002761

Diplatinum-(II) and -(III) complexes with bridging µ-diphosphonito-P,P or µ-methylenebis(phosphonito)-P,P ligands. Synthesis, structure, and nuclear magnetic resonance analysis of the lantern complexes. Crystal structures of K4[Pt2{µ-CH2[P(O)OH]2}4]·6H2O and K4[Pt2{µ-CH2[P(O)OH]2}4Cl2]·8H2O Christopher King, D. Max Roundhill, Mark K. Dickson and Frank R. Fronczek, pp 2769 DOI:10.1039/DT9870002769

Organoruthenaborane chemistry. Part 5. Products of the reaction between closo-[B10H10]2– and [(6-C6Me6)ClRuB3H8]. Nuclear magnetic resonance studies and the crystal and molecular structure of [{(6-C6Me6)2Ru2H4}RuB10H8(OEt)2] Mark Bown, Xavier L. R. Fontaine, Norman N. Greenwood, Peter MacKinnon, John D. Kennedy and Mark Thornton-Pett, pp 2781 DOI:10.1039/DT9870002781

Dinitrogen complexes derived from tricarbonyl(6-hexaethylbenzene)chromium(0): crystal and molecular structure of µ-dinitrogen-bis[dicarbonyl(6-hexaethylbenzene)chromium(0)]–toluene (1/1) Stella Denholm, Geoffrey Hunter and Timothy J. R. Weakley, pp 2789 DOI:10.1039/DT9870002789

The syntheses and crystal and molecular structures of some ten-vertex (MCB8; M = Ru or Os) metallacarbaboranes: 9,9,9-[(CO)(PPh3)2-nido-9,6-MCB8H10-5-(PPh3)](M = Ru or Os) and [9,9,9-(-C5H5)(H)(PPh3)-arachno-9,6-RuCB8H12] Nathaniel W. Alcock, Michael J. Jasztal and Malcolm G. H. Wallbridge, pp 2793 DOI:10.1039/DT9870002793

Reactions of co-ordinated ligands. Part 42. The synthesis and reactions of cationic 4-tetraphenylcyclobutadieneruthenium complexes; X-ray crystal structures of [Ru(NCMe)(4-C4Ph4)(-C5H5)][BF4] and [Ru{5-CH(Ph)C(Ph)C(Ph)C(Ph)O}(-C5H5)] Mark Crocker, Simon F. T. Froom, Michael Green, Katharine R. Nagle, A. Guy Orpen and Dianne M. Thomas, pp 2803 DOI:10.1039/DT9870002803

The chemistry of tetraphenylcyclopentadienone complexes of ruthenium and rhodium: the X-ray crystal structure of [Ru{5-C5Ph4OC(O)CH(OMe)Ph}(CO)2Cl] Neil A. Bailey, Varinder S. Jassal, Rahmatollah Vefghi and Colin White, pp 2815 DOI:10.1039/DT9870002815

Synthesis using metal atoms of [RuH(-C6H6)(PMe3)(-C6H5)], [OsH(-C6H6)(PMe3)(-C6H5)], [MnH(-C6H6)(PMe3)2], and [Mn(-C5H5)(PMe3)3]: arene ligand-exchange reactions of [RuH(-C6H6)(PMe3)(-C6H5)] Malcolm L. H. Green, David S. Joyner and Julian M. Wallis, pp 2823 DOI:10.1039/DT9870002823

Reactions of phosphine, arsine, and stibine with carbonylbis(triethylphosphine)iridium(I) halides. Part 1. Reactions in toluene; X-ray crystal structures of [Ir(CO)ClH(PEt3)2(AsH2)] and [Ir(CO)XH(PEt3)2(µ-ZH2)RuCl2(6-MeC6H4CHMe2-p)](X = Br, Z = P; X = Cl, Z = As) E. A. V. Ebsworth, Robert O. Gould, Richard A. Mayo and Malcolm Walkinshaw, pp 2831 DOI:10.1039/DT9870002831

Reactivity of a cluster-co-ordinated acyl. Reduction of a µ-acetyl ligand to acetaldehyde Alan G. Cowie, Brian F. G. Johnson and Jack Lewis, pp 2839 DOI:10.1039/DT9870002839

Carbene complexes. Part 21. Synthesis and characterisation of bis(carbene)molybdenum(II) complexes and dimetal(0) complexes of the Group 6 elements containing novel bridging bis(carbene) ligands; X-ray structures of [Mo(CO)2(LEt)2(OSO2CF3)2][LEt=CN(Et)(CH2)2NEt] and [W(CO)5{C(OEt)CH2C6H4CH2C(OEt)-o}W(CO)5] David M. Anderson, Garry S. Bristow, Peter B. Hitchcock, Hatam A. Jasim, Michael F. Lappert and Brian W. Skelton, pp 2843 DOI:10.1039/DT9870002843

Mixed-metal phosphinito complexes of platinum(II) and palladium(II) with lanthanide and actinide elements. The single-crystal X-ray structure of [UO2(OH2){(OPPh2)2Pd(S2CNEt2)}2] Paul M. Veitch, James R. Allan, Alexander J. Blake and Martin Schröder, pp 2853 DOI:10.1039/DT9870002853

Hydride addition reactions of the olefin complexes [Fe(5-C5H5)-(CO)2(olefin)][BF4]; formyl formation as the kinetically preferred process; regio- and stereo-selectivity during addition to the co-ordinated olefins Alan D. Cameron, David E. Laycock, Vedene H. Smith jun.  and Michael C. Baird, pp 2857 DOI:10.1039/DT9870002857

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700BX043

Issue 12

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FX045

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700FP047

Electrolytic behaviour of transition metal bromides in acetonitrile solution Wacaw Grzybkowski, pp 2863 DOI:10.1039/DT9870002863

-Alkynyl complexes of manganese(I) as 2-bonding ligands for Group 1B metal-ligand fragments. X-Ray crystal structure of [Mn2Cu(µ-CCBut)2(CO)6(dppe)2]PF6·0.5CH2Cl2 Gabino A. Carriedo, Daniel Miguel, Víctor Riera and X. Soláns, pp 2867 DOI:10.1039/DT9870002867

Manganese(I) complexes with (tricyclohexylphosphonio)dithiocarboxylate as chelate and unidentate ligand. X-Ray crystal structure of fac-[Mn(CO)3{S2CP(C6H11)3}2]ClO4·H2O Daniel Miguel, Victor Riera, Jesus A. Miguel, Claudette Bois, Michèle Philoche-Levisalles and Yves Jeannin, pp 2875 DOI:10.1039/DT9870002875

Electronic structure and redox reactions of vanadium(II) polypyridine, isocyanide, and phosphine complexes S. Sadiq Shah and Andrew W. Maverick, pp 2881 DOI:10.1039/DT9870002881

Ligand intra- and inter-molecular exchange processes in dioxopentakis(trimethylurea)uranium(VI). A proton nuclear magnetic resonance study Alex White and Stephen F. Lincoln, pp 2885 DOI:10.1039/DT9870002885

Complexes formed between zinc(II) and diethylenetriamine: a carbon-13 nuclear magnetic resonance study David N. Hague and Anthony D. Moreton, pp 2889 DOI:10.1039/DT9870002889

Carbon-13 nuclear magnetic resonance study of the zinc(II) complexes of 3,7-diazanonane-1,9-diamine and 1,2-diaminoethane Stephen P. Dagnall, David N. Hague and Anthony D. Moreton, pp 2897 DOI:10.1039/DT9870002897

Crystal structure of a copper complex of 2-carboxypentonic acid; a decomposition product of dehydroascorbic acid Richard E. Norman, Norman J. Rose and Ronald E. Stenkamp, pp 2905 DOI:10.1039/DT9870002905

The effect of increase in chelate ring size beyond six-membered on the metal ion size selectivity patterns of tetra-aza macrocycles Robert D. Hancock and M. Patrick Ngwenya, pp 2911 DOI:10.1039/DT9870002911

Chemistry of polynuclear metal complexes with bridging carbene or carbyne ligands. Part 68. Reactions between nonacarbonyldi-iron and the salts [NEt4][W(CR)(CO)2(5-C2B9H9Me2)](R = Me, Ph, or C6H4Me-4); crystal structures of [NEt4][FeW{µ-CH(C6H4Me-4)}(µ-:5-C2B9H8Me2)(µ-CO)(CO)5] and [NEt4][Fe2W(µ3-CPh)(µ-:,5-C2B9H7Me2)(CO)8] Franz-Erich Baumann, Judith A. K. Howard, Owen Johnson and F. Gordon A. Stone, pp 2917 DOI:10.1039/DT9870002917

Dienophile cycloaddition to cycloheptatriene and related complexes of tricarbonyliron. X-Ray crystal structures of [Fe(CO)3(4-C7H7CN)]·C2(CN)4 and [ Fe(CO)3(4-C7H7-C7H7)] Suman K. Chopra, Desmond Cunningham, Seamus Kavanagh, Patrick McArdle and Grainne Moran, pp 2927 DOI:10.1039/DT9870002927

Reactions of allene with triosmium and triruthenium clusters including coupling and oxidative addition: X-ray structure of the coupled allene compound [Os3(C6H8)(CO)10] Antony J. Deeming, Alejandro J. Arce, Ysaura De Sanctis, Paul A. Bates and Michael B. Hursthouse, pp 2935 DOI:10.1039/DT9870002935

The mechanism of the photochemical production of hydrogen from aqueous solutions of hydridotris(triethylphosphine)platinum(II) Duncan W. Bruce, David J. Cole-Hamilton and Peter Pogorzelec, pp 2941 DOI:10.1039/DT9870002941

The chemistry of chromium nitrile complexes of 1,2-bis(dimethylphosphino)-ethane. X-Ray crystal structures of trans-[CrIVCl(NEt)(dmpe)2]CF3SO3, trans-[CrIV(NCHMe)2(dmpe)2][BPh4]2, and trans-[Co0(H·NCMe)2(dmpe)2][BPh4]2 Andrew R. Barron, Julian E. Salt, Geoffrey Wilkinson, Majid Motevalli and Michael B. Hursthouse, pp 2947 DOI:10.1039/DT9870002947

Mean phosphorus- and arsenic-sulphur bond enthalpies in diethyldithiocarbamate chelate complexes Claudio Airoldi and Antonio G. de Souza, pp 2955 DOI:10.1039/DT9870002955

A comparison of the efficiencies of polymer-supported phosphine and phosphine oxide complexes of manganese(II), MnX2(P C6H4PPh2) and MnX2{P C6H4P(O)Ph2}n(n= 2 or 4; X = Cl, Br, or I), for the absorption of sulphur dioxide Brian L. Booth, Ke-Si Li and Charles A. McAuliffe, pp 2959 DOI:10.1039/DT9870002959

Oxygen- and carbon monoxide-binding to a lipophilic diporphyrinatocopperiron complex solubilized in an aqueous medium with a micelle Hiroyuki Nishide, Yukio Hashimoto, Hiromi Maeda and Eishun Tsuchida, pp 2963 DOI:10.1039/DT9870002963

Synthesis and chemistry of trans-[RhX(CO)L2](X = anionic ligand, L = tertiary phosphine) Yuji Ohgomori, Shin-ichi Yoshida and Yoshihisa Watanabe, pp 2969 DOI:10.1039/DT9870002969

Binuclear copper(I) complexes of a 24-membered macrocycle (L1) derived from 2,5-diformylthiophene and 3-thiapentane-1,5-diamine. Crystal and molecular structure of [Cu2L1(NCS)][ClO4]; a unique example of a single end-to-end bridging thiocyanate between copper(I) atoms Aidan Lavery, S. Martin Nelson and Michael G. B. Drew, pp 2975 DOI:10.1039/DT9870002975

Reactions of diazo-compounds with the electron-rich germylene Ge[N(SiMe3)2]2. Characterisation and some addition reactions of [(Me3Si)2N]2GeNNC(COOMe)2: crystal and molecular structure of [(Me3Si)2N]2Ge[NHNC(COOMe)2][C(N2)COPh] Christopher Glidewell, Douglas Lloyd, Keith W. Lumbard, James S. McKechnie, Michael B. Hursthouse and Richard L. Short, pp 2981 DOI:10.1039/DT9870002981

Preparation, isomerization, and reactions of hydride complexes of ruthenium(II) Joanne M. Bray and Roger J. Mawby, pp 2989 DOI:10.1039/DT9870002989

Reactions in mixed non-aqueous solution containing sulphur dioxide. Part 9. Mechanisms of dissolution of metals, oxides, and sulphites J. Bernard Gill, David C. Goodall and W. David Harrison, pp 2995 DOI:10.1039/DT9870002995

Metal-nucleotide interactions: crystal structures of Ca[Cu(5-GMP)2(en)-(H2O)2]·8H2O (5-GMP = guanosine 5-monophosphate, en = ethylenediamine) and Ca[Cu(5-IMP)2(H2O)4]·6.7H2O (5IMP = inosine 5-monophosphate) Stefano Mangani and Pierluigi Orioli, pp 2999 DOI:10.1039/DT9870002999

Dinuclear rhodium and iridium complexes of dicarboxyimidazolates; crystal structure of [NBu4][(cod)Rh(dcbi)Rh(cod)]·2PriOH J. Carlos Bayón, Gemma Net, Paul G. Rasmussen and J. Bruce Kolowich, pp 3003 DOI:10.1039/DT9870003003

Surface characterisation of -, -, -, and -UO3 using X-ray photoelectron spectroscopy Geoffrey C. Allen and Nigel R. Holmes, pp 3009 DOI:10.1039/DT9870003009

Mono- and bi-nuclear gold(I) and gold(III) complexes with S2C-PR3 ligands. X-Ray crystal structures of [Au(C6F5)3(S2C-PEt3)] and [Au2(µ-S2C-PEt3)-(C6F5)6]·Ch2Cl2 Rafael Usón, Antonio Laguna, Mariano Laguna, Maria Luz Castilla, Peter G. Jones and Christa Fittschen, pp 3017 DOI:10.1039/DT9870003017

Instant ligands. Part 2. Preparation of some bidentate ligands containing PF2O groups from aromatic hydroxy compounds, and their reactions to form molybdenum and tungsten complexes Graeme A. Bell, David W. H. Rankin and Paul F. Reinisch, pp 3023 DOI:10.1039/DT9870003023

Preparations, properties, and vibrational spectra of some (dimethylamino)halogenosilanes David G. Anderson, Janet Armstrong and Stephen Cradock, pp 3029 DOI:10.1039/DT9870003029

Molecular structures of some (dimethylamino)halogenosilanes in the gas phase by electron diffraction and the crystal and molecular structures of mono- and di-chloro(dimethylamino)silane by X-ray diffraction at low temperatures David G. Anderson, Alexander J. Blake, Stephen Cradock, E. A. V. Ebsworth, David W. H. Rankin, Heather E. Robertson and Alan J. Welch, pp 3035 DOI:10.1039/DT9870003035

Chemistry of molybdenum. Part 5. Synthesis, spectroscopic and electrochemical properties of bis(2-aminocyclopent-1 -ene-1- dithiocarboxylato)(arylimido)dihalogenomolybdenum(VI) complexes Sujit Baran Kumar and Muktimoy Chaudhury, pp 3043 DOI:10.1039/DT9870003043

The chemistry of cycloheptatrienyl complexes of molybdenum and tungsten: the synthesis and reactions of some vinylidene and alkynyl derivatives Jeanette S. Adams, Caroline Bitcon, Jack R. Brown, David Collison, Michael Cunningham and Mark W. Whiteley, pp 3049 DOI:10.1039/DT9870003049

Structure and electrochemical properties of bis(pyridine)cobalt(III) complexes of N,N-ethylenebis(salicylideneimine) homologues with an aryl substituent on the ethylene backbone. Crystal structures of [Co(salpen)(py)2]PF6·0.5 Et2O and [Co(salcppn)(py)2]PF6·2py (py = pyridine) Eiji Kitaura, Yuzo Nishida, Hisashi kawa and Sigeo Kida, pp 3055 DOI:10.1039/DT9870003055

The structure of bis(dimethylamino)silane in the gas phase, determined by electron diffraction David G. Anderson, Janet A. Armstrong, Stephen Cradock and David W. H. Rankin, pp 3061 DOI:10.1039/DT9870003061

Chelate ring-opening of rhenium-diphosphine complexes by diazonium salts Stuart W. Carr, Xavier L. R. Fontaine and Bernard L. Shaw, pp 3067 DOI:10.1039/DT9870003067

Synthesis, characterisation, and photochemical properties of a series of ruthenium containing metallopolymers based on poly-N-vinylimidazole Suzanne M. Geraty and Johannes G. Vos, pp 3073 DOI:10.1039/DT9870003073

Platinum(II)- and pailadium(II)-iron(0) complexes containing one bridging Ph2PCH2PPh2 ligand. Crystal structures of [(OC)3Fe(µ-Ph2PCH2PPh2)(µ-CO)PtBr2] and [(OC)3Fe(µ-Ph2PCH2PPh2)(µ-I)PtI]·CH2Cl2 Grant B. Jacobsen, Bernard L. Shaw and Mark Thornton-Pett, pp 3079 DOI:10.1039/DT9870003079

Syntheses and crystal structures of complexes [M2R2][M = Cu, Ag, or Au; R = 2-C(SiMe3)2C5H4N] and [Cu4R4][R= 2-CH(SiMe3)C5H4N]; electrochemical generation of [Cu2R2]2+ Rocco I. Papasergio, Colin L. Raston and Allan H. White, pp 3085 DOI:10.1039/DT9870003085

Preparation and structure of nickel(II) complexes of N-substituted tetra-aza macrocycles: molecular structure of [(1RS,4SR,5RS,8SR,11RS,12SR)-1,5,8,12- tetramethyl-1,4,8,11-tetra-azacyclotetradecane]nickel(II) diperchloratet Kazuo Miyamura, Masatomo Kohzuki, Ryoichi Narushima, Masahiko Saburi, Yohichi Gohshi, Sei Tsuboyama, Kaoru Tsuboyama and Tosio Sakurai, pp 3093 DOI:10.1039/DT9870003093

An electron spin resonance study of frozen aqueous solutions containing 5,10,15,20-tetrakis(N-methyl-4-pyridinio)porphyrinatocobait(II) Dennis F. Evans and David Wood, pp 3099 DOI:10.1039/DT9870003099

Notes. Preparation of two mixed-metal carbonyl clusters based on the platinumtriosmium core. X-Ray crystal structure of [Os3PtH2(cod)(CH2)(CO)9](cod = cyclo-octa-1,5-diene) Bertil Norén and Peter Sundberg, pp 3103 DOI:10.1039/DT9870003103

Additions and corrections Nathaniel W. Alcock, John G. Taylor, Malcolm G. H. Wallbridge, Roberto Rossi, Andrea Marchi, Adriano Duatti, Luciano Magon, Umberto Casellato and Rodolfo Graziani, pp 3107 DOI:10.1039/DT9870003107

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98700BX047