1984 year
Main Index

Issue 1

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FX001

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FP001

Refereeing procedure and policy (1984) J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400Fxxiv

Instructions for authors (1984) J. Chem. Soc., Dalton Trans. DOI:10.1039/DT984000000v

The crystal structure and electronic properties of bis(2,2-bipyridyl)-copper(II) bis(hexafluorophosphate) Judy Foley, Suresh Tyagi and Brian J. Hathaway, pp 1 DOI:10.1039/DT9840000001

The low-temperature crystal structure (203 and 123 K) and electronic properties of diammonium hexa-aquacopper(II) disulphate: a fluxional CuO6 chromophore Nathaniel W. Alcock, Mary Duggan, Angela Murray, Suresh Tyagi, Brian J. Hathaway and Alan Hewat, pp 7 DOI:10.1039/DT9840000007

The crystal structure of bis(NN-diethylethylenediamine)copper(II) dinitrate and the electronic properties of some square planar CuN4 chromophores Andrew Walsh and Brian J. Hathaway, pp 15 DOI:10.1039/DT9840000015

Some oxygen-donor di-N-thiocyanato-thorium(IV) and -uranium(IV) bis[hydrotris(pyrazol-1-yl)borate] complexes Ikhtiar Ahmed, Kenneth W. Bagnall, Li Xing-fu and Pao Po-jung, pp 19 DOI:10.1039/DT9840000019

Synthesis and chemistry of 1,3-dihydrotellurolo[3,4-b]quinoxaline and derivatives: crystal and molecular structure of 1,3-dihydro-2,2-di-iodo-24-tellurolo[3,4-b]quinoxaline-2,3-bis(iodomethyl)quinoxaline (1:1) Harkesh B. Singh, William R. McWhinnie, Thomas A. Hamor and Richard H. Jones, pp 23 DOI:10.1039/DT9840000023

Properties of novel iron-sulphur proteins formed by the introduction of a synthetic iron-sulphur cluster into bovine serum albumin and bovine insulin Barbara Odell and Philip J. Geary, pp 29 DOI:10.1039/DT9840000029

Structural and spectroscopic characterization of complexes containing the mononuclear trihalogenometalates [CuI3]2-, [CuBr3]2-, and [AgI3]2-. Crystal structure of [PMePh3]2[CuI3] Graham A. Bowmaker, George R. Clark, David Alan Rogers, Annamaria Camus and Nazario Marsich, pp 37 DOI:10.1039/DT9840000037

Chromium(III) complexes of multidentate phosphines, arsines, and thioethers. Crystal and molecular structure of the complex mer-[Cr{P(CH2CH2PPh2)3}Cl3] Leslie R. Gray, Annette L. Hale, William Levason, Francis P. McCullough and Michael Webster, pp 47 DOI:10.1039/DT9840000047

Synthesis and chemical characterization of the new anions [Rh3(µ3-E)2(CO)6]-(E = S or Se). Crystal and molecular structures of [PPh4][Rh3(µ3-S)2(CO)6] and [NMe4][Rh3(µ3-Se)2(CO)6] Daniele Galli, Luigi Garlaschelli, Gianfranco Ciani, Alessandro Fumagalli, Secondo Martinengo and Angelo Sironi, pp 55 DOI:10.1039/DT9840000055

Crystal and supramolecular structures of complexes of BF3NH3 and BH3NH3 with 18-crown-6 Howard M. Colquhoun, Geraint Jones, John M. Maud, J. Fraser Stoddart and David J. Williams, pp 63 DOI:10.1039/DT9840000063

Cyclopentadienyl complexes of uranium(IV) chlorides. Crystal structures of trichloro(5-cyclopentadienyl)bis(triphenylphosphine oxide)uranium(IV) tetrahydrofuran solvate and of trichloro(5-cyclopentadienyl)bis(hexamethylphosphoramide)uranium(IV) Kenneth W. Bagnall, Franco Benetollo, Gabriella Bombieri and Giovanni De Paoli, pp 67 DOI:10.1039/DT9840000067

Enthalpies of sublimation of transition metal complexes Philip M. Burkinshaw and Colin T. Mortimer, pp 75 DOI:10.1039/DT9840000075

Spectroscopic studies on C2 hydrocarbon fragments. Part 2. Vibrational group frequencies and carbon-13 nuclear magnetic resonance chemical shifts of cluster-bound C2Hn(n= 1-4) fragments John Evans and Gregory S. McNulty, pp 79 DOI:10.1039/DT9840000079

Lanthanide oxides: preparation and ageing Rafael Alvero, Jose A. Odriozola, Jose M. Trillo and Serafin Bernal, pp 87 DOI:10.1039/DT9840000087

Notes. Preparation and characterization of the adduct UO2F2·AsF5 Darja Gantar, Boris Frlec and Bogdan Volavek, pp 93 DOI:10.1039/DT9840000093

Scrambling equilibria of some dimetal decacarbonyls Antonio Marcomini and Anthony Poë, pp 95 DOI:10.1039/DT9840000095

Cyclopalladation of 4-methyl-4-nitrodibenzyl sulphide Katsuma Hiraki, Yoshio Fuchita and Yasunori Kage, pp 99 DOI:10.1039/DT9840000099

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400BX003

Issue 2

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FX005

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FP005

Mechanisms of reduction of a nickel(IV) oxime complex by 1,2- and 1,4-dihydroxybenzene compounds in aqueous perchlorate media Donal H. Macartney and Alexander McAuley, pp 103 DOI:10.1039/DT9840000103

Kinetics and mechanism of inversion at asymmetric nitrogen centres in the blue copper(II) complex of C-rac-5,5,7,12,12,14-hexamethyl-1,4,8,11-tetra-azacyclotetradecane Chung-Shin Lee, Guan-Tzer Wang and Chung-Sun Chung, pp 109 DOI:10.1039/DT9840000109

Chemistry of molybdenum. Part 2. Complexes of molybdenum with 2-aminocyclopent-1-ene-1-carbodithioate. Synthesis, characterisation, and electrochemical studies Muktimoy Chaudhury, pp 115 DOI:10.1039/DT9840000115

Kinetics of the reactions of 5,7,7,12,12,14-hexamethyl-1,4,8,11-tetra-azacyclotetradeca-4,14-dienenickel(II) and 5,7,7,12,14,14-hexamethyl-1,4,8,11-tetra-azacyclotetradeca-4,11-dienenickel(II) with cyanide Francesco Ferranti and Maria del Mar Graciani Constante, pp 121 DOI:10.1039/DT9840000121

Complexes of rhodium(I) with 1,8-naphthyridine and related ligands. Crystal structure of [Rh2(µ-napy)2(nbd)2][ClO4]2·H2O Antonio Tiripicchio, Marisa Tiripicchio Camellini, Rafael Usón, Luis A. Oro, Miguel A. Ciriano and Fernando Viguri, pp 125 DOI:10.1039/DT9840000125

Application of proton polarization transfer to a high-spin nucleus, germanium-73 Kenneth M. Mackay, Philip J. Watkinson and Alistair L. Wilkins, pp 133 DOI:10.1039/DT9840000133

Photochemistry of manganese porphyrins. Part 8. Electrochemistry Anthony Harriman, pp 141 DOI:10.1039/DT9840000141

Aluminium-27 nuclear magnetic resonance investigations of highly alkaline aluminate solutions J. W. Akitt and Wolfgang Gessner, pp 147 DOI:10.1039/DT9840000147

Vibrational studies of the cluster carbonyls of ruthenium and osmium. Part 1. Raman solution data for [Ru3(CO)12], [Os3(CO)12], and [Ru4H4(CO)12] in the CO stretching region Trevor R. Gilson, pp 149 DOI:10.1039/DT9840000149

Vibrational studies of the cluster carbonyls of ruthenium and osmium. Part 2. Single-crystal Raman and infrared data for [Ru3(CO)12] in the CO stretching region Trevor R. Gilson and John Evans, pp 155 DOI:10.1039/DT9840000155

The reaction of phosphines with [Fe2(CO)4L2(5: 5-C16H16)]2+[L = CO or P(OPh)3]; cyclopropane ring-opening of the bicyclo[5.1.0]octadienyl groups, and the X-ray crystal structure of [Fe2(CO)6{4:4-C16H16(PPh3)2}][PF6]2·0.5C6H5Me Neil G. Connelly, Andrew R. Lucy, Rona M. Mills, Mark W. Whiteley and Peter Woodward, pp 161 DOI:10.1039/DT9840000161

Intramolecular catalysis of olefin exchange in trans-dichloro(-olefin)(pyridine)platinum(II) complexes by the hydroxy-group of a side chain in the 2-position of the pyridine ligand Genevieve Guillot-Edelheit and Jean-Claude Chottard, pp 169 DOI:10.1039/DT9840000169

Photochemistry of alkyltricarbonyl(5-cyclopentadienyl)tungsten (alkyl = Et, Prn, Pri, Bun, or CH2Ph), tricarbonyl(5-cyclopentadienyl)(phenyl)tungsten, tricarbonyl(5-pentamethylcyclopentadienyl)(n-propyl)tungsten, and tricarbonyl(5-cyclopentadienyl)(ethyl)-molybdenum in gas matrices at 12 K and in solutions at 243 K Khalil A. Mahmoud, Antony J. Rest, Helmut G. Alt, Manfred E. Eichner and Brigitte M. Jansen, pp 175 DOI:10.1039/DT9840000175

Photochemistry of tricarbonyl(5-cyclopentadienyl)hydrido complexes of molybdenum and tungsten and of dicarbonyl(5-cyclopentadienyl)-(ethylene)hydridotungsten in solution and in frozen gas matrices at 12 K Khalil A. Mahmoud, Antony J. Rest and Helmut G. Alt, pp 187 DOI:10.1039/DT9840000187

Stereospecific transfer of ethynyl groups between platinum(II) and mercury(II) Ronald J. Cross and James Gemmill, pp 199 DOI:10.1039/DT9840000199

Stereospecific transfer reactions of phenyl and ethynyl groups between platinum(II) atoms Ronald J. Cross and James Gemmill, pp 205 DOI:10.1039/DT9840000205

Preparation and X-ray crystal structure of (S3N2)2NAsF6, containing the bis(thiodithiazyl)aminylium(1+) cation Gregory K. MacLean, Jack Passmore and Peter S. White, pp 211 DOI:10.1039/DT9840000211

Complexations of 1,4-dienes to rhodium(I) pentane-2,4-dionates; thermal rearrangements of the complexes Rajindra Aneja, Bernard T. Golding and Colin Pierpoint, pp 219 DOI:10.1039/DT9840000219

Lewis-base adducts of Group 1B metal(I) compounds. Part 4. Synthesis and crystal structure of the 1 : 1 adduct of silver(I) chloride with quinoline Nancy K. Mills and Allan H. White, pp 225 DOI:10.1039/DT9840000225

Lewis-base adducts of Group 1B metal(I) compounds. Part 5. Synthesis and crystal structures of adducts of silver(I) thiocyanate with 2- and 3-methylpyridine, 2,6-dimethylpyridine, and quinoline Nancy K. Mills and Allan H. White, pp 229 DOI:10.1039/DT9840000229

Kinetic study of acid dechelation of some vanadium(V)-aminocarboxylate complexes in aqueous solution Janine Lagrange, Kouassi Aka and Philippe Lagrange, pp 239 DOI:10.1039/DT9840000239

A new series of neutral nitrosyl(4-tetraphenylcyclobutadiene)iron(0) complexes: crystal and molecular structure of (NN-diethyldithiocarbamato-SS)nitrosyl(4-tetraphenylcyclobutadiene)iron(0) Fergus J. Lalor, Leslie H. Brookes, George Ferguson and Masood Parvez, pp 245 DOI:10.1039/DT9840000245

An investigation on the influence of co-ordinated aliphatic amines on the rates of reduction of tetrachlorodiamineplatinum(IV) complexes Arnaldo Peloso, pp 249 DOI:10.1039/DT9840000249

Oxidation and reduction of cis-bis(2,2-bipyridine)dicarbonylmolybdenum(0) and -tungsten(0). Preparation of bis(2,2-bipyridine)-dicarbonyl(solvent)molybdenum(II) bis(tetrafluoroborate) salts and their reaction with isocyanides Joseph A. Connor, E. Joyce James, Colin Overton and Nabil El Murr, pp 255 DOI:10.1039/DT9840000255

The metal-ligand bond in tropolone complexes of aluminium and silicon. A study based on X-ray emission and X-ray photoelectron spectra Moslem A. Al-Kadier and David S. Urch, pp 263 DOI:10.1039/DT9840000263

Solvent effects on the conformation of nucleotides. Part 2. Nuclear magnetic shift and relaxation effects induced by lanthanide ions on adenosine 5-monophosphate in water-dimethyl sulphoxide Carlos F. G. C. Geraldes and José R. Ascenso, pp 267 DOI:10.1039/DT9840000267

Reactions of metallabromoalkanes [M{(CH2)nBr}(CO)3(-C5H5)](M = Mo or W, n= 3 or 4) with transition metal anions. Dimetalla-alkane and cyclic carbene complex formation. Crystal and molecular structures of [(-C5H5)(OC)3Mo{(CH2)4}Mo(CO)3(-C5H5)] and [(-C5H5)(OC)3MoW(CO)2{C-O-(CH2)2CH2}(-C5H5)] Harry Adams, Neil A. Bailey and Mark J. Winter, pp 273 DOI:10.1039/DT9840000273

Solution dynamics of the osmium cluster [Os3(µ-H)2(CO)10] by 13C and 17O nuclear magnetic resonance. Estimation of the 13C chemical shift anisotropy and 17O quadrupole coupling constant Geoffrey E. Hawkes, Edward W. Randall, Silvio Aime, Domenico Osella and Jane E. Elliot, pp 279 DOI:10.1039/DT9840000279

Synthesis and reactivity of bimetallic Au-Ag polyfluorophenyl complexes; crystal and molecular structures of [{AuAg(C6F5)2(SC4H8)}n] and [{AuAg(C6F5)2(C6H6)}n] Rafael Usón, Antonio Laguna, Mariano Laguna, Blanca R. Manzano, Peter G. Jones and George M. Sheldrick, pp 285 DOI:10.1039/DT9840000285

Notes. Unsymmetrical bis(phosphorus) compounds: synthesis of unsymmetrical ditertiary phosphines, phosphine oxides, and diquaternary phosphonium salts F. Roger Benn, Josie C. Briggs and Charles A. McAuliffe, pp 293 DOI:10.1039/DT9840000293

Vibrational spectra of hydrazinium(1+) and hydrazinium(2+) hexafluorotitanates(IV) and the decomposition of hydrazinium(2+) hexafluorotitanate(IV) difluoride followed by Raman spectroscopy Svetozar Miliev and Jadran Maek, pp 297 DOI:10.1039/DT9840000297

The structure of the mixed-metal cluster anion [FeOs3H(CO)13]- as its [N(PPh3)2]+ salt Donald T. Eadie, H. Diane Holden, Brian F. G. Johnson and Jack Lewis, pp 301 DOI:10.1039/DT9840000301

Additions and corrections Torsten Behling, Geoffrey Wilkinson, T. Anthony Stephenson, Derek A. Tocher and Malcolm D. Walkinshaw, pp 305 DOI:10.1039/DT9840000305

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400BX007

Issue 3

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FX009

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FP009

Thermodynamic studies on the addition of molecular oxygen to cobalt(II) complexes. Part 3. The cobalt(II)-tetraethylenepenta-amine-O2 system in aqueous solution at 25 °C Sergio Cabani, Norberto Ceccanti and Paolo Gianni, pp 307 DOI:10.1039/DT9840000307

Chemistry of 2,3-dihydro-2-metallaphenalenes. Part 1. Synthesis of CHRSiMe2CHRC10H6(R = R= H; R = R= SiMe3; and R,R= H,SiMe3) and formation of the compound [{Li(Me2NCH2CH2NMe2)}2{CHSiMe2C(SiMe3)C10H6}]via decomposition of [{Li(Me2NCH2CH2NMe2)}2{1,8-(CHSiMe3)2C10H6}]; crystal structures of two polymorphs of the silicon heterocycle dilithium complex Lutz M. Engelhardt, Rocco I. Papasergio, Colin L. Raston and Allan H. White, pp 311 DOI:10.1039/DT9840000311

Axially asymmetric metal alkyls. Part 1. Lithium alkyls of 2,2-dimethylbiphenyl and its trimethylsilylmethylated compounds: crystal structures of [{Li(Me2NCH2CH2NMe2)}2{(2-CHRC6H4)2}] for R = H (polymeric) and R = SiMe3(monomeric) Lutz M. Engelhardt, Wing-Por Leung, Colin L. Raston, Paul Twiss and Allan H. White, pp 321 DOI:10.1039/DT9840000321

Axially asymmetric metal alkyls. Part 2. Synthesis of the di-Grignard reagent [{Mg(thf)nCl}2R][thf = tetrahydrofuran, R =(2-CH2C6H4)22-] and 6,7-dihydro-5H-dibenzo[c,e]-silepines and -stannepines; X-ray crystal structures of [SnPh2R] and -SS- and -RR-[SnPh2{[2-CH(SiMe3)C6H4]2}] Lutz M. Engelhardt, Wing-Por Leung, Colin L. Raston, Paul Twiss and Allan H. White, pp 331 DOI:10.1039/DT9840000331

Kinetics of electron-transfer reactions of para-substituted phenols p-C6H4(X)OH with [Fe(phen)3]3+(phen = 1,10-phenanthroline) and with [IrCl6]2- in aqueous acidic solutions: correlation between the Hammett constant of X and the one-electron redox potential of p-C6H4(X)OH Masaru Kimura and Yukari Kaneko, pp 341 DOI:10.1039/DT9840000341

Synthesis of cationic palladium(II) and platinum(II) complexes with a monodentate trialkylphosphoniumdithiocarboxylate ligand: molecular structure of trans-[Pd(C6F5)(PEt3)2(S2C-PEt3)]ClO4·CHCl3 Rafael Usón, Juan Forniés, Rafael Navarro, Miguel A. Usón, Maria P. Garcia and Alan J. Welch, pp 345 DOI:10.1039/DT9840000345

The template synthesis and crystal and molecular structure of a sexidentate Schiff-base macrocyclic complex of samarium(III), [Sm(C18H18N6)(NO3)(OH)(H2O)]NO3·2MeOH Khalil K. Abid, David E. Fenton, Umberto Casellato, P. Alessandro Vigato and Rodolfo Graziani, pp 351 DOI:10.1039/DT9840000351

Insertion of unsaturated hydrocarbons into the platinum-nitrogen bond of [Pt(PPh3)2(PhNO)] Sergio Cenini, Francesca Porta, Maddalena Pizzotti and Girolamo La Monica, pp 355 DOI:10.1039/DT9840000355

The synthesis and characterization of cobalt complexes with diphosphorus-sulphur and -selenium cyclic units as trihapto ligands. X-Ray crystal structures of [Co{CMe(CH2PPh2)3}(P2X)]BF4·C6H6(X = S or Se) Massimo Di Vaira, Maurizio Peruzzini and Piero Stoppioni, pp 359 DOI:10.1039/DT9840000359

Nuclear magnetic resonance studies of pyramidal inversion in complexes of tricarbonylrhenium(I) halides with aliphatic and aromatic mixed thio-seleno ethers Edward W. Abel, Suresh K. Bhargava, Kenneth Kite, Keith G. Orrell, Vladimir ik and Bruce L. Williams, pp 365 DOI:10.1039/DT9840000365

Microcalorimetric studies on the thermal decomposition of platinum and palladium complexes containing phosphine or diene ligands Ghassan Al Takhin, Henry A. Skinner and Ahmed A. Zaki, pp 371 DOI:10.1039/DT9840000371

Preparation and properties of tetrathiafulvalene (ttf) and tetramethyltetraselenafulvalene salts of tin(IV) halide anions and X-ray crystal structure of [ttf]3[SnCl6] Kensuke Kondo, Gen-etsu Matsubayashi, Toshio Tanaka, Hiroshi Yoshioka and Kazumi Nakatsu, pp 379 DOI:10.1039/DT9840000379

The kinetics of base hydrolysis of chloropentakis(alkylamine)rhodium(III) ions James McGilly and D. Huw Vaughan, pp 385 DOI:10.1039/DT9840000385

Rhenium carbonyl complexes. Synthesis and characterisation of NN-diarylamidines, RNHC(R)NR(R = H, Me, or Ph, R= Ph or C6H4Me-p), and related carbamoyl derivatives J. Andrew Clark and Melvyn Kilner, pp 389 DOI:10.1039/DT9840000389

Chemistry of o-xylidene-metal complexes. Part 2. Preparation and properties of the o-xylidene-metal(IV) complexes [M(CH2C6H4CH2-o)(-C5H4R)2](M = Ti, Zr, Hf, or Nb; R = H or SiMe3) and [{M(CH2C6H4CH2-o)2(OC4H8)}n](M= Ti, Zr, or Hf); X-ray crystal structures of the metallaindanes [M(CH2C6H4CH2-o)(-C5H4R)2](R = H, M = Ti, Zr, or Hf; R = SiMe3, M = Nb) Garry S. Bristow, Michael F. Lappert, Tony R. Martin, Jerry L. Atwood and William F. Hunter, pp 399 DOI:10.1039/DT9840000399

Preparation and boron-11 and proton nuclear magnetic resonance study of the anions [B9H14]-, [B9H13(NCS)]-, and [B9H13(NC)BH3]-, and a comparison with the neutral derivatives B9H13(SMe2), B9H13(SEt2), and B9H13(CH3CN); isolation of [B8H12(NCS)]- Grant B. Jacobsen, John H. Morris and David Reed, pp 415 DOI:10.1039/DT9840000415

Octahedral and trigonal-bipyramidal complexes of ruthenium(II) with bidentate phosphine ligands Josie C. Briggs, Charles A. McAuliffe and Geoffrey Dyer, pp 423 DOI:10.1039/DT9840000423

Tetrakis(imidazole)copper(II) fluorides. The crystal and molecular structure of diaquatetrakis(imidazole)copper(II) difluoride Wim Vreugdenhil, Paul J. M. W. L. Birker, Richard W. M. ten Hoedt, Gerrit C. Verschoor and Jan Reedijk, pp 429 DOI:10.1039/DT9840000429

The stepwise hydrogenation of a nitrile on an osmium cluster: X-ray crystal structures of [Os3(µ-H)(µ-NHCH2CF3)(CO)10], [Os3(µ-H)2(µ3-NCH2CF3)(CO)9], and [Os3H(µ-H)3(µ3-NCH2CF3)(CO)8] Zain Dawoodi, Martin J. Mays and Kim Henrick, pp 433 DOI:10.1039/DT9840000433

Reactions of co-ordinated ligands. Part 29. The formation of a 1,3-diene at a molybdenum centre by linking of but-2-yne with an alkene; X-ray crystal structures of [Mo(2-o-Ph2PC6H4CHCH2)(2-MeC2Me)(-C5H5)][BF4] and [Mo(NCMe)(4-o-MeCHCMe-CHCHC6H4PPh2)(-C5H5)][BF4] Stephen R. Allen, Michael Green, Grainne Moran, A. Guy Orpen and Graham E. Taylor, pp 441 DOI:10.1039/DT9840000441

Kinetics of the decomposition and formation of ethylenedinitrilotetra-acetatovanadate(III) in dilute aqueous perchloric acid Jalil A. M. Ahmad and William C. E. Higginson, pp 451 DOI:10.1039/DT9840000451

Nuclear magnetic resonance studies of chelate-ring effects in tungsten(0) carbonyl complexes of poly(tertiary phosphines) Ian J. Colquhoun, William McFarlane and Richard L. Keiter, pp 455 DOI:10.1039/DT9840000455

Co-ordination chemistry of higher oxidation states. Part 8. Nickel(III) complexes of bi- and multi-dentate phosphorus and arsenic ligands; crystal and molecular structure of [Ni(Ph2PCH2CH2PPh2)Br3]·C6H5Me Leslie R. Gray, Simon J. Higgins, William Levason and Michael Webster, pp 459 DOI:10.1039/DT9840000459

Spectroscopy of terminal dinitrogen complexes: nitrogen-15 and phosphorus-31 nuclear magnetic resonance Susan Donovan-Mtunzi, Raymond L. Richards and Joan Mason, pp 469 DOI:10.1039/DT9840000469

Notes. Kinetics of silver(II) oxidation of metal cations Patrizia Arselli, Claudio Baiocchi, Edoardo Mentasti and John S. Coe, pp 475 DOI:10.1039/DT9840000475

Kinetics of the electron-transfer reaction, iodine with cobalt(II) sepulchrate Nigel Rudgewick-Brown and Roderick D. Cannon, pp 479 DOI:10.1039/DT9840000479

Donor properties of arylphosphines towards selenium: X-ray crystal structure of tris(m-trifluoromethylphenyl)phosphine selenide David W. Allen, Lorraine A. March and Ian W. Nowell, pp 483 DOI:10.1039/DT9840000483

Thermal and thermally assisted photochemical conversion of [Mo(NO)]3+ to [Mo(NO)]2+ in a ketonic solvent: single-step synthesis of nitrosyl(thiocyanato)molybdenum(I) derivatives from [Mo(NO)(NH2O)(NCS)2(L-L)](L-L = 2,2-bipyridine or 1,10-phenanthroline) Ramgopal Bhattacharyya, Gobinda Prasad Bhattacharjee, Amit Kumar Mitra and Ashim Bhusan Chatterjee, pp 487 DOI:10.1039/DT9840000487

Gold-197 Mössbauer and 31P-{1H} nuclear magnetic resonance spectroscopic studies on gold(I) complexes with tertiary phosphines Ali K. H. Al-Sa'ady, Charles A. McAuliffe, Karen Moss, R. V. (Dick) Parish and Roy Fields, pp 491 DOI:10.1039/DT9840000491

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400BX011

Issue 4

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FX013

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FP013

Polymeric complexes from molybdenum trioxide, with notes on derivatives and related compounds Richard N. Hider and Cuthbert J. Wilkins, pp 495 DOI:10.1039/DT9840000495

Nb6I11, and DNb6I11, and HNb6I11: a powder neutron diffraction and inelastic scattering study Andrew N. Fitch, S. Andrew Barrett, Brian E. F. Fender and Arndt Simon, pp 501 DOI:10.1039/DT9840000501

Synthesis of alkali-metal diaquafluoro-oxoperoxovanadate(IV) complexes [VO(O2)F(H2O)2]- Mihir K. Chaudhuri and Soumitra K. Ghosh, pp 507 DOI:10.1039/DT9840000507

Synthesis, structure, and solution behaviour of the compound trans-bis(dimethylglyoximato)(ethyl)(methyl 4-pyridinecarboximidate)cobalt(III) Luigi G. Marzilli, Michael F. Summers, James H. Ramsden jun. , N. Bresciani-Pahor and Lucio Randaccio, pp 511 DOI:10.1039/DT9840000511

Synthesis, reactivity, and molecular and crystal structures of some trinuclear diphenylphosphido-bridged carbonyl derivatives of rhodium Raymond J. Haines, Nick D. C. T. Steen and Robin B. English, pp 515 DOI:10.1039/DT9840000515

Thermal behaviour of germanium bis(monohydrogenphosphate) monohydrate and characterization of derived germanium pyrophosphates Aldo La Ginestra, Paola Galli, Maria L. Berardelli and Maria A. Massucci, pp 527 DOI:10.1039/DT9840000527

Synthesis and some reactions of binuclear -cyclopentadienyl rhodium complexes containing bis(diphenylphosphino)methane and small molecules (CO, SO2, or SnCl2) as bridging ligands. Crystal and molecular structure of [Rh2(-C5H5)2(µ-CO)(µ-Ph2PCH2PPh2)] Felice Faraone, Giuseppe Bruno, Sandra Lo Schiavo and Gabriella Bombieri, pp 533 DOI:10.1039/DT9840000533

Combination of aryl and carbonyl ligands in ruthenium(II) complexes: a kinetic study David R. Saunders, Martin Stephenson and Roger J. Mawby, pp 539 DOI:10.1039/DT9840000539

Dicobalt(II) complexes of a macrocyclic ligand containing hydroxo-, alkoxo-, phenoxo-, thiolato-, halogeno-, and pseudohalogeno-bridges: structures and magnetic exchange interactions Michael G. B. Drew, Ferida S. Esho, Aidan Lavery and S. Martin Nelson, pp 545 DOI:10.1039/DT9840000545

Bis[2-(phenylazo)phenyl-C1N]gold(III) complexes. Crystal and molecular structure of bis[2-(phenylazo)phenyl-C1N]gold(III) tetrachloroaurate José Vicente, María-Teresa Chicote, Marí-Dolores Bermúadez, Xavier Soláns and Manuel Font-Altaba, pp 557 DOI:10.1039/DT9840000557

Crystal and molecular structure of trisilylamine at 115 K Michael J. Barrow and E. A. V. Ebsworth, pp 563 DOI:10.1039/DT9840000563

Alkane (or arene)-sulphinato and -sulphonato-iron(III) porphyrins: synthesis and physicochemical properties; crystal structure of benzenesulphinato(5,10,15,20-tetraphenylporphyrinato)iron(III) Panayotis Cocolios, Gilles Lagrange, Roger Guilard, Hassan Oumous and Claude Lecomte, pp 567 DOI:10.1039/DT9840000567

Synthesis and characterisation of the five diastereoisomers of 4,7,13,16-tetraphenyl-1,10-dithia-4,7,13,16-tetraphosphacyclo-octadecane: crystal structure of the nickel bromide complex of the -isomer Mario Ciampolini, Nicoletta Nardi, Paolo Dapporto, Paolo Innocenti and Fabrizio Zanobini, pp 575 DOI:10.1039/DT9840000575

Proton exchange and base-catalysed hydrolysis of the cations trans-dichloro[(RSSR)-1,4,8,11-tetra-azacyclotetradecane]cobalt(III) and cis-dichloro[RRRR(SSSS)-1,4,8,11-tetra-azacyclotetradecane]-cobalt(III) Jaim Lichtig, Martha E. Sosa and Martin L. Tobe, pp 581 DOI:10.1039/DT9840000581

Spectroscopic studies on adsorbed metal carbonyls. Part 1. Interaction of [Rh4(CO)12] and [Rh6(CO)16] with alumina, silica, and titania John Evans and Gregory S. McNulty, pp 587 DOI:10.1039/DT9840000587

The chemistry of vitamin B12. Part 24. Evidence for hydride complexes of cobalt(III) corrinoids Susan M. Chemaly and John M. Pratt, pp 595 DOI:10.1039/DT9840000595

Standard enthalpies of formation and lattice energies of alkylammonium halides. Part 2. Ethylammonium halides B. Mokhtar Derakhshan, Arthur Finch, Peter N. Gates and Michael Stephens, pp 601 DOI:10.1039/DT9840000601

Metal complexes of the new tetra-aza macrocyclic ligand 1,5,9,13-tetramethyl-1,5,9,13-tetra-azacyclohexadecane; carbon-13 nuclear magnetic resonance study of the complexes of Cd2+, Hg2+, and Pb2+ and X-ray crystal structure of the cadmium complex Nathaniel W. Alcock, Eirian H. Curzon, Peter Moore and Colin Pierpoint, pp 605 DOI:10.1039/DT9840000605

Studies on transition-metal-peptide complexes. Part 9. Copper(II) complexes of tripeptides containing histidine Etelka Farkas, Imre Sóvágó, Tamás Kiss and Arthur Gergely, pp 611 DOI:10.1039/DT9840000611

Dinuclear intermediates in the oxidation of pendant olefinic groups of palladium(II)-co-ordinated Schiff-base ligands Aidan Lavery and S. Martin Nelson, pp 615 DOI:10.1039/DT9840000615

Studies of phosphazenes. Part 17. Reaction of hexachlorocyclotriphosphazatriene with N-methylethanolamine: X-ray crystal structure of a dispirocyclotriphosphazatriene, N3P3(NMeCH2CH2O)2Cl2 Vadapalli Chandrasekhar, Setharampattu S. Krishnamurthy, Hattikudur Manohar, A. R. Vasudeva Murthy, Robert A. Shaw and Michael Woods, pp 621 DOI:10.1039/DT9840000621

The influence of molecular hydrogen on the reaction between [Ru3(CO)12] and [Ni2(-C5H5)(C2Ph2)]. Synthesis and crystal structure of the new heteropentametallic cluster [Ni2Ru3(-C5H5)2(CO)6(µ-CO)2(µ4,2-C2Ph2)] Antonio Tiripicchio, Marisa Tiripicchio Camellini and Enrico Sappa, pp 627 DOI:10.1039/DT9840000627

The synthesis of a dinuclear anionic carbonyl derivative of manganese, [N(PPh3)2][Mn2(µ-PPh2)(CO)8], and its reactions with complexes of Group 1B and Group 8A metals to give mixed-metal clusters: comparative study of the X-ray crystal structures of [N(PPh3)2][Mn2(µ-PPh2)(CO)8], [Mn2{µ-Au(PMe2Ph)}(µ-PPh2)(CO)8], and [Mn2(µ-H)(µ-PPh2)(CO)8] Jonathan A. Iggo, Martin J. Mays, Paul R. Raithby and Kim Henrick, pp 633 DOI:10.1039/DT9840000633

The preparation of some manganese-mercury cluster complexes and a study of their redistribution reactions Jonathan A. Iggo and Martin J. Mays, pp 643 DOI:10.1039/DT9840000643

NN-dialkylcarbamato-complexes of cobalt(II) Daniela Belli Dell'Amico, Fausto Calderazzo, Bruno Giovannitti and Giancarlo Pelizzi, pp 647 DOI:10.1039/DT9840000647

Synthesis and absolute configuration of a series of chiral ruthenium complexes; crystal structure of (R)-[Ru(5-C5H4R*)(CO)(PPh3)I](R*= neomenthyl) Edoardo Cesarotti, Anna Chiesa, Gian Franco Ciani, Angelo Sironi, Rahmatollah Vefghi and Colin White, pp 653 DOI:10.1039/DT9840000653

Kinetics of the electron-transfer reaction of penta-ammine(nitrilotriacetato)cobalt(III) and titanium(III): evidence for a binuclear intermediate Radovan Marec, Matko Orhanovi, Jacqueline A. Wray and Roderick D. Cannon, pp 663 DOI:10.1039/DT9840000663

Magnetic exchange interactions in perovskite solid solutions. Part 4. The Fe3+-O-Cr3+ superexchange interaction Terence C. Gibb, pp 667 DOI:10.1039/DT9840000667

Metal chelates of sulphur-containing polyamine macrocycles and oxygenation of the corresponding cobalt(II) complexes Mutsuo Kodama, Tohru Koike, Noriko Hoshiga, Ryosuke Machida and Eiichi Kimura, pp 673 DOI:10.1039/DT9840000673

Actinide structural studies. Part 6. A confirmed non-linear uranyl group in dioxobis(pentane-2,4-dionato)pyridineuranium(VI) Nathaniel W. Alcock, David J. Flanders and David Brown, pp 679 DOI:10.1039/DT9840000679

Synthesis of styrylcycloheptatriene derivatives via the electrophilic addition of tropylium ions to [Fe(CO)3(4-C8H8)]: X-ray crystal structure of tricarbonyl(1-4--7-styrylcyclohepta-1,3,5-triene)iron Karen Broadley, Neil G. Connelly, Rona M. Mills, Mark W. Whiteley and Peter Woodward, pp 683 DOI:10.1039/DT9840000683

Determination by electron diffraction of the molecular structure of tris(trimethylsilyl)methylphosphine in the gas phase Alan H. Cowley, Jan E. Kilduff, E. A. V. Ebsworth, David W. H. Rankin, Heather E. Robertson and Ragnhild Seip, pp 689 DOI:10.1039/DT9840000689

Synthesis, X-ray crystal structure, and reactions of dihydridopentakis(trimethylphosphine)molybdenum(II): crystal structure of the carbon dioxide insertion product, (formato-O,O)hydridotetrakis(trimethylphosphine)molybdenum(II) David Lyons, Geoffrey Wilkinson, Mark Thornton-Pett and Michael B. Hursthouse, pp 695 DOI:10.1039/DT9840000695

Carbon monoxide reduction. [Fe(5-C5H5)(Ph2PCH2CH2PPh2)(CO)H]: reactions and formation by reduction of the complex [Fe(5-C5H5)(Ph2PCH2CH2PPh2)(CO)]PF6 Stephen G. Devies, John Hibberd, Stephen J. Simpson, Susan E. Thomas and Oliver Watts, pp 701 DOI:10.1039/DT9840000701

Notes. The infrared spectra of alkali metal hexafluorouranates(V). An example of dependence of molecular geometry on matrix gas Stephen A. Arthers, Ian R. Beattie and Peter J. Jones, pp 711 DOI:10.1039/DT9840000711

The redox behaviour of square-planar trans-dicyanodihalogenoaurate(III) complexes in acetonitrile Jale Hacalolu, Namik K. Tunali and Ural Akbulut, pp 715 DOI:10.1039/DT9840000715

Preparation and crystal structure of trichloro(thionitrosyl)bis(triphenylphosphine)osmium, [Os(NS)Cl3(PPh3)2] Herbert W. Roesky, Krishna K. Pandey, William Clegg, Mathias Noltemeyer and George M. Sheldrick, pp 719 DOI:10.1039/DT9840000719

Preparation and crystal structures of two phosphorus-sulphur rings: (PhP)3S3 and (PhP)2S4 Cornelia Lensch, William Clegg and George M. Sheldrick, pp 723 DOI:10.1039/DT9840000723

A seven-co-ordinate actinoid complex: crystal and molecular structure of tetrachlorotris(trimethylamine)thorium(IV) Michael G. B. Drew and Gerald R. Willey, pp 727 DOI:10.1039/DT9840000727

The displacement of bonding electrons found in the ylide bond of aminimide-palladium complexes Shinji Tsuchiya and Manabu Sen, pp 731 DOI:10.1039/DT9840000731

Deoxygenation reaction of 2-nitrophenol. Synthesis and X-ray crystal structure of [Ru(OC6H4NO-o)((OC6H4NO2-o)(CO)(PPh3)2] Maddalena Pizzotti, Corrado Crotti and Francesco Demartin, pp 735 DOI:10.1039/DT9840000735

Preparation of potential macroligands for alkali-metal ions using open-chain polyether carboxylic acids and tricarbonylbis(triphenylphosphine)ruthenium. X-Ray crystal structure of dicarbonylbis[1-(o-carboxymethoxyphenoxy)-2-(o-hydroxyphenoxy)ethanato(1-)]bis(triphenylphosphine)ruthenium(II) David L. Hughes and Jonathan N. Wingfield, pp 739 DOI:10.1039/DT9840000739

Letters Vladimir I. Belevantsev, Alexander V. Shoovayev, Trevor R. Griffiths, Richard A. Anderson, Toshie Ohya and Mitsuo Sato, pp 743 DOI:10.1039/DT9840000743

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400BX015

Issue 5

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FX017

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FP017

Reactions of platinum(II) acetylides with organolithium compounds: formation of lithium-bridged dinuclear platinum(II) complexes and of triorganoplatinate(II) complexes: crystal structure of the complex [Pt2(CCPh)4(PEt3)2(Bun)2(µ-Li)2] Angelika Sebald, Bernd Wrackmeyer, Charis R. Theocharis and William Jones, pp 747 DOI:10.1039/DT9840000747

The use of trimethylsilylation to study the structure of mineral silicates Brian R. Currell, Henry G. Midgley, Brian J. Mingham, John R. Parsonage and Edward A. Vidgeon, pp 757 DOI:10.1039/DT9840000757

Comparative photochemistry of tricarbonyl(5-cyclopentadienyl)methyl- and -ethyl-molybdenum and -tungsten in poly(vinyl chloride) film matrices at 12-298 K Richard H. Hooker and Antony J. Rest, pp 761 DOI:10.1039/DT9840000761

Nucleophilic attack on olefins co-ordinated to platinum. Part 4. Formation of neutral and cationic -adducts and of ring compounds: studies of stability Jamil K. K. Sarhan, Michael Green and Ibrahim M. Al-Najjar, pp 771 DOI:10.1039/DT9840000771

Crystal structures of N-benzenesulphonyl-DL-alanine and aqua-[N-benzenesulphonyl-DL-alaninato(2-)]copper(II) monohydrate: a model for metal ion-sulphonamide binding Siddhartha Chaudhuri, pp 779 DOI:10.1039/DT9840000779

Crystal structures and spectroscopic properties of the polymeric adducts formed from Cu(CN) and Cu(NCS) with 2,9-dimethyl-1,10-phenanthroline Giorgio Oscar Morpurgo, Giulia Dessy and Vincenzo Fares, pp 785 DOI:10.1039/DT9840000785

Solution photochemistry of tetrakis(tetrabutylammonium) decatungstate(VI) and catalytic hydrogen evolution from alcohols Toshihiro Yamase, Naoki Takabayashi and Masashi Kaji, pp 793 DOI:10.1039/DT9840000793

Rhodium-(I) and -(III) complexes of diphenylphosphinous acid and secondary phosphites J. Andrew S. Duncan, T. Anthony Stephenson, Malcolm D. Walkinshaw, David Hedden and D. Max Roundhill, pp 801 DOI:10.1039/DT9840000801

Photochemical hydrogen production from ascorbic acid catalysed by tris(2, 2-bipyridyl)ruthenium(II) and hydridotris(triethylphosphine)palladium(II) John R. Fisher and David J. Cole-Hamilton, pp 809 DOI:10.1039/DT9840000809

Zwitterionic adducts from trialkylphosphine and (-allyl)dicarbonyl-nitrosyliron complexes: structure and reactivity Giuseppe Cardaci, pp 815 DOI:10.1039/DT9840000815

The vibrational spectra of some tetrachlorides in rare gas matrices with particular reference to the molecular shapes of ThCl4 and UCI4 Stephen A. Arthers and Ian R. Beattie, pp 819 DOI:10.1039/DT9840000819

An electron spin resonance study of bis(tetraphenylarsonium) pentakis(isothiocyanato)nitrosyltechnetate(II): a six-co-ordinate low-spin 4d5 technetium(II) complex John Baldas, John F. Boas, John Bonnyman and Geoffrey A. Williams, pp 827 DOI:10.1039/DT9840000827

Structural studies of technetium complexes. Part 4. The crystal structure of trans,trans-acetonitriledi-isothiocyanato(nitrido)bis-(triphenylphosphine)technetium(V)-acetonitrile (1/0.5) John Baldas, John Bonnyman and Geoffrey A. Williams, pp 833 DOI:10.1039/DT9840000833

Synthesis of polynuclear complexes containing the tridentate bis(diphenylphosphino)methanide ligand. Crystal structures of the compounds [(C6F5)2Au(Ph2PCHPPh2)Au(C6F5)] and [(C6F5)2Au(Ph2PCHPPh2)Au(Ph2PCHPPh2)Au(C6F5)2]ClO4 Rafael Usón, Antonio Laguna, Mariano Laguna, Blanca R. Manzano, Peter G. Jones and George M. Sheldrick, pp 839 DOI:10.1039/DT9840000839

Some co-ordination compounds of TaCl3S and TaBr3S. X-Ray crystal structure of [TaCl3S(PhSCH2CH2SPh)] Michael G. B. Drew, David A. Rice and David M. Williams, pp 845 DOI:10.1039/DT9840000845

Bimetallic systems. Part 3. Complexes containing the ligand bis(diphenylphosphino)methane bridging from the platinacycle PtCH2CH2CH2CH2 to another metal Paul G. Pringle and Bernard L. Shaw, pp 849 DOI:10.1039/DT9840000849

Bimetallic systems. Part 4. Synthesis and characterisation of mixed copper(I)-, silver(I)-, or gold(I)-platinum(II) acetylide complexes containing bridging Ph2PCH2PPh2 Gary R. Cooper, Alan T. Hutton, C. Richard Langrick, David M. McEwan, Paul G. Pringle and Bernard L. Shaw, pp 855 DOI:10.1039/DT9840000855

Synthesis of [M(CO)4(Ph2PCHRPPh2)](M = Cr, Mo, or W; R = COPh or COC6H4Me-p) and photochemically induced reactions of the complex [W(CO)4{Ph2PCH(COPh)PPh2}]: crystal structures of the complexes [W(CO)4{Ph2POC(Ph)CHPPh2}] and [W(CO)4(PPh2OH)(PPh2CH2COPh)] Subhi Al-Jibori, Michael Hall, Alan T. Hutton and Bernard L. Shaw, pp 863 DOI:10.1039/DT9840000863

Secondary bonding. Part 12. Aryltellurium iodides: crystal and molecular structures of cis- and trans-phenyltellurium(IV) tri-iodide and two modifications of diphenyltellurium(IV) di-iodide Nathaniel W. Alcock and W. David Harrison, pp 869 DOI:10.1039/DT9840000869

Alkyl and hydrido derivatives of tetrakis(trimethylphosphine)osmium(II). X-Ray crystal structure of the metallacycle Os[(CH2)2SiMe2](PMe3)4 Torsten Behling, Gregory S. Girolami, Geoffrey Wilkinson, Richard G. Somerville and Michael B. Hursthouse, pp 877 DOI:10.1039/DT9840000877

Chemistry of o-xylidene-metal complexes. Part 3. Tungste o-xylidene complexes derived from tetrachloro(oxo)tungsteh(VI); X-ray crystal structures of [W(CH2C6H4CH2-o)3]·0.5C6H6 and [{W(CH2C6H4CH2-o)2O}2Mg(C4H8O)4] Michael F. Lappert, Colin L. Raston, Graham L. Rowbottom, Brian W. Skelton and Allan H. White, pp 883 DOI:10.1039/DT9840000883

Chemistry of o-xylidene-metal complexes. Part 4. Stereospecific synthesis of the early transition metal meso-metallacycles [M{CH(SiMe3)C6H4CHSiMe3-o}(-C5H5)2](M = Ti, Zr, Hf, or Nb), their reversible one-electron reduction (M = Ti, Zr, Hf, or Nb) and oxidation (M = Nb); and the X-ray crystal structure of the zirconium complex Michael F. Lappert, Colin L. Raston, Brian W. Skelton and Allan H. White, pp 893 DOI:10.1039/DT9840000893

Metal-exchange reactions between cobalt(II) complexes of polyaminocarboxylic acid ligands and copper(II) ions Edoardo Mentasti, pp 903 DOI:10.1039/DT9840000903

Photochemical properties of cis- and trans-1,2-diphenylethenyl-trimethyltin(IV) and cis-1,2-diphenylpropenyltrimethyltin(IV) : organometallic derivatives of stilbene John M. Kelly and Raymond J. Trautman, pp 909 DOI:10.1039/DT9840000909

Electron spin resonance and electrochemical studies of monocyclopentadienyl-titanium(III) and -zirconium(III) derivatives [M(5-C5H5)R2] involving chelated phosphinomethyl (R = CH2PPh2) and phosphinoacetate (R = O2CCH2PPh2) ligands Michel Etienne, Robert Choukroun and Danièle Gervais, pp 915 DOI:10.1039/DT9840000915

Kinetics of the oxidation of hydrazine by periodate Gyula Rábai and Mihály T. Beck, pp 919 DOI:10.1039/DT9840000919

Quantum yields and reaction rates in the photo-oxidation of hydrazine by uranyl ion Kevin R. Butter and Terence J. Kemp, pp 923 DOI:10.1039/DT9840000923

Synthesis and properties of tetramethyl(5-pentamethylcyclopentadienyl)iridium(V), dimethyl-di-µ-methylene-bis[(5-pentamethylcyclopentadienyl)iridium(IV)], and related complexes from reactions of di-µ-chloro-dichlorobis[(5-pentamethylcyclopentadienyl)iridium(III)] with hexamethyldialuminium Kiyoshi Isobe, Amelio Vázquez de Miguel, Andrew Nutton and Peter M. Maitlis, pp 929 DOI:10.1039/DT9840000929

Formation of mixed-ligand complexes of cadmium(II) with chloride and substituted pyridines in 1,2-dichloroethane as solvent Kiyoshi Sawada, Toshio Mitsuyose and Toshio Suzuki, pp 935 DOI:10.1039/DT9840000935

Synthesis and structure of the mercaptodithiotrinickel complex [Ni3(µ3-S)2(SH)(PEt3)5]BPh4 Carlo A. Ghilardi, Stefano Midollini, Annabella Orlandini, Claudio Battistoni and Giulia Mattogno, pp 939 DOI:10.1039/DT9840000939

Electron spin resonance spectra and crystal and molecular structures of magnetic-dipole coupled bis(1,4-dioxane-O)bis[(p-methoxybenzoyl)-trifluoroacetonato-O,O]copper(II) bis(1,4-dioxane) solvate and catena-µ-(1,4-dioxane-O,O)-bis[(p-nitrobenzoyl)trifluoroacetonato-O,O]-copper(II) Christopher J. Evenhuis, Michael A. Hitchman, Robbie G. McDonald, David M. L. Goodgame, Edmund Kwiatkowski, Urszula Dettlaff-Weglikowska, Chaveng Pakawatchai and Allan H. White, pp 943 DOI:10.1039/DT9840000943

Organothiometallic compounds. Crystal structure and spectroscopic properties of (isopropylthio)mercury(II) chloride Paolo Biscarini, Elisabetta Foresti and Gabriele Pradella, pp 953 DOI:10.1039/DT9840000953

Synthesis of the anion [Ru3H(µ3-PPh)(CO)9]- and its reactions with complexes of Re, Rh, Ir, Cu, Ag, and Au to give heterometallic clusters containing a triruthenium unit: crystal structures of the complexes [Ru3Rh2(µ4-PPh)(CO)13(PEt3)] and [Ru3{µ-Au(PMe2Ph)}(µ-H)(µ3-PPh)(CO)9] Martin J. Mays, Paul R. Raithby, Philip L. Taylor and Kim Henrick, pp 959 DOI:10.1039/DT9840000959

Stable gold(I) complexes with chelate rings: solution studies of bis(phosphino)ethane complexes and X-ray crystal structure of bis[1,2-bis(diphenylphosphino)ethane]gold(I) hexafluoroantimonate-acetone (1/1) Susan J. Berners-Price, Muhammed A. Mazid and Peter J. Sadler, pp 969 DOI:10.1039/DT9840000969

The co-ordination chemistry of divalent cobalt, nickel, and copper. Part 10. Characterisation and stability constants of nickel(II) species isolated from a mixed-ligand solution: crystal structure of tris(1,2-diaminoethane)nickel(II) bis(pyridine-2,6-dicarboxylato)nickelate(II) tetrahydrate Jan G. H. du Preez, Hans E. Rohwer, Bernardus J. van Brecht and Mino R. Caira, pp 975 DOI:10.1039/DT9840000975

Aluminium-27 nuclear magnetic resonance studies of the hydrolysis of aluminium(III). Part 6. Hydrolysis with sodium acetate J. W. Akitt and Nikola B. Mili, pp 981 DOI:10.1039/DT9840000981

Notes. An X-ray photoelectron spectroscopic study of the surface properties of vanadium antimonate and -antimony tetroxide Frank J. Berry, Michael E. Brett, Richard A. Marbrow and William R. Patterson, pp 985 DOI:10.1039/DT9840000985

The crystal structure of chlorotris(3-methylpyridine)copper(I), and its conversion into hexa-µ-chloro-tetrakis(3-methylpyridine)-µ4-oxo-tetracopper(II) Eric W. Ainscough, Alistair G. Bingham, Andrew M. Brodie and Kevin L. Brown, pp 989 DOI:10.1039/DT9840000989

A convenient synthesis of [Ru(-C5H5)(PPh3)(CO)Cl] and the cations [Ru(-C5H5)(PPh3)L(CO)]+[L = CO, PMe3, or P(OPh)3] Stephen G. Davies and Stephen J. Simpson, pp 993 DOI:10.1039/DT9840000993

Macrocyclic polyphosphane ligands. Cobalt(II) and nickel(II) complexes of (4RS, 7RS, 13RS, 16RS)-tetraphenyl-1,10-dithia-4,7,13,16-tetraphosphacyclo-octadecane and crystal structure of the nickel dibromide complex Mario Ciampolini, Nicoletta Nardi, Paolo Dapporto and Fabrizio Zanobini, pp 995 DOI:10.1039/DT9840000995

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400BX019

Issue 6

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FX021

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FP021

Kinetics and mechanisms of redox reactions in aqueous solution. Part 8. Osmium(VIII) catalysed oxidation of amino acids by alkaline hexacyanoferrate(III) Raj N. Mehrotra, Ramesh C. Kapoor and Sharad Kumar Vajpai, pp 999 DOI:10.1039/DT9840000999

Photochemistry of tricarbonyl(-di-imine)iron complexes. New mechanistic aspects for CO photosubstitution in solution and evidence for ,-co-ordination of 1,4-diaza-1,3-butadiene ligands in matrices at 10 K Maarten W. Kokkes, Derk J. Stufkens and Ad Oskam, pp 1005 DOI:10.1039/DT9840001005

The correlation between tin-119 Mössbauer isomer shifts and atomic charges on tin in five-co-ordinated tin(IV) derivatives Renato Barbieri and Arturo Silvestri, pp 1019 DOI:10.1039/DT9840001019

Controlled hydrolysis of hexachlorocyclotriphosphazene and related, sulphur-containing ring systems Barteld de Ruiter, Herman Winter, Theo Wilting and Johan C. van de Grampel, pp 1027 DOI:10.1039/DT9840001027

Stereochemistry and tautomeric equilibria of zinc(II) complexes of the condensation products between (1R)-3-hydroxymethylenebornan-2-one and L-amino acids Luigi Casella, Michele Gullotti and Antal Rockenbauer, pp 1033 DOI:10.1039/DT9840001033

Sulphur-containing metal complexes. Part 9. Synthesis of trisubstituted aminocarbene-thioether chelates of chromium(0) and tungsten(0) Johanna C. Viljoen, Simon Lotz, Lorna Linford and Helgard G. Raubenheimer, pp 1041 DOI:10.1039/DT9840001041

A photoelectron spectroscopic study of the (FBS)n system (n= 1-3) Terry A. Cooper, Harold W. Kroto, Colin Kirby and Nicholas P. C. Westwood, pp 1047 DOI:10.1039/DT9840001047

Transition-metal co-ordination compounds containing a novel tridentate pyrazole chelating ligand. X-Ray crystal structure of [NN-bis(3,5-dimethylpyrazol-1-ylmethyl)aminoethane](nitrato-O)-(nitrato-O,O)nickel (II) Johan W. F. M. Schoonhoven, Willem L. Driessen, Jan Reedijk and Gerrit C. Verschoor, pp 1053 DOI:10.1039/DT9840001053

Synthesis, reactivity, and structures of cationic 6-arene carbonyl complexes of rhenium(I). Crystal and molecular structures of the two isoelectronic 1,3,5-trimethylbenzene tricarbonyl complexes of rhenium(I) and tungsten(0) Fausto Calderazzo, Rinaldo Poli, Aldo Barbati and Pier Francesco Zanazzi, pp 1059 DOI:10.1039/DT9840001059

A kinetic and mechanistic study of the oxidative addition of diaryl ditellurides to trans-carbonylchlorobis(triphenylphosphine)iridium(I) in toluene Rahim T. Mehdi and J. David Miller, pp 1065 DOI:10.1039/DT9840001065

Organoimido-complexes of tantalum(V). Preparation and X-ray crystal structure of bis[bis(trimethylsilyl)amido]chloro(t-butylimido)-tantalum(V) and bis[bis(trimethylsilyl)amido]-di-µ-bromo-dibromobis-(trimethylsilylimido)ditantalum(V) Donald C. Bradley, Michael B. Hursthouse, K. M. Abdul Malik, Alistair J. Nielson and George B. Chota Vuru, pp 1069 DOI:10.1039/DT9840001069

Compartmental ligands. Part 8. Metal complexes of ligands derived from 2,3-dihydro-2-hydroxy-4H-1-benzopyran-4-one and ,-diamines: crystal and molecular structures of two mononuclear nickel(II) and one mononuclear copper(II) complexes Neil A. Bailey, Suzanne F. Davison, John R. Elliot, David E. Fenton, Elizabeth Godbehere, Stephen K. Holdroyd and Cecilia Rodriguez de Barbarin, pp 1073 DOI:10.1039/DT9840001073

The palladium(II)-promoted hydrolysis of methyl and isopropyl glycylglycinate Robert W. Hay and Mahesh P. Pujari, pp 1083 DOI:10.1039/DT9840001083

Studies of niobium selenido-halides: crystal structure of [Nb2Cl4(Se2)2(SMe2)4] Michael G. B. Drew, David A. Rice and David M. Williams, pp 1087 DOI:10.1039/DT9840001087

Barium calcium hydroxyapatite solid solutions Adriana Bigi, Elisabetta Foresti, Fulvia Marchetti, Alberto Ripamonti and Norberto Roveri, pp 1091 DOI:10.1039/DT9840001091

Structural characterization by X-ray absorption spectroscopy (EXAFS/XANES) of the vanadium chemical environment in Boscan asphaltenes José Goulon, Alain Retournard, Pascale Friant, Chantal Goulon-Ginet, Christine Berthe, Jean-François Muller, Jean-Luc Poncet, Roger Guilard, Jean-Claude Escalier and Bernard Neff, pp 1095 DOI:10.1039/DT9840001095

The interaction of aliphatic amines with transition-metal complexes of aromatic di-imines. Part 1. Kinetics and thermodynamics of reaction of the tris(5-nitro-1,10-phenanthroline)nickel(II) cation with aliphatic amines in dimethylformamide Antonino Bartolotta, Matteo Cusumano, Antonino Giannetto and Vittorio Ricevuto, pp 1105 DOI:10.1039/DT9840001105

Trithiocarbonate and dithiocarbonate complexes of -cyclopentadienyl cobalt(III): X-ray crystal structure of [Co(-C5H5)(CNBut)(CS3)] John Doherty, John Fortune, A. R. Manning and F. S. Stephens, pp 1111 DOI:10.1039/DT9840001111

The kinetics of base hydrolysis of trans-dichlorotetrakis(alkylamine)-rhodium(III) ions James McGilly and D. Huw Vaughan, pp 1117 DOI:10.1039/DT9840001117

Spectroscopic studies on adsorbed metal carbonyls. Part 2. Interaction of [Ru3(CO)12] with silica, titania, and alumina John Evans and Gregory S. McNulty, pp 1123 DOI:10.1039/DT9840001123

Spectroscopic studies of transition-metal ion complexes of diethylenetriaminepenta-acetic acid and diethylenetriaminepenta-methylphosphonic acid John Oakes and Cornelis G. van Kralingen, pp 1133 DOI:10.1039/DT9840001133

Identification and characterisation of three novel compounds in the sodium-aluminium-oxygen system Marten G. Barker, Paul G. Gadd and Michael J. Begley, pp 1139 DOI:10.1039/DT9840001139

Liposomal heme as oxygen carrier under semi-physiological conditions Eishun Tsuchida, Hiroyuki Nishide, Makoto Yuasa, Etsuo Hasegawa and Yoh-ichi Matsushita, pp 1147 DOI:10.1039/DT9840001147

Kinetics of the combination of methyl ligands with carbonyl or isonitrile ligands in ruthenium(II) complexes David R. Saunders, Martin Stephenson and Roger J. Mawby, pp 1153 DOI:10.1039/DT9840001153

Reactions of co-ordinated ligands. Part 30. The transformation of methylenecyclopropanes into cationic 4-trimethylenemethanemolybdenum complexes, reactions with nucleophilic reagents, and the molecular structure of [Mo{4-C(CH2)3}(CO)2(-C5Me5)][BF4] Stephen R. Allen, Stephen G. Barnes, Michael Green, Grainne Moran, Lynda Trollope, Nicholas W. Murrall, Alan J. Welch and Dima M. Sharaiha, pp 1157 DOI:10.1039/DT9840001157

Reactions of dienes with the ion [Ir(PPh3)2(OCMe2)2H2]+ : a kinetic and mechanistic study of complex formation and diene hydrogenation Oliver W. Howarth, Colin H. McAteer, Peter Moore and George E. Morris, pp 1171 DOI:10.1039/DT9840001171

Mixed Co-Ni carbide clusters. Part 1. Synthesis and structural characterization of the [Co3Ni9C(CO)20]3- trianion Alessandro Ceriotti, Roberto Della Pergola, Giuliano Longoni, Mario Manassero and Mirella Sansoni, pp 1181 DOI:10.1039/DT9840001181

Co-ordination of alkali metals by open-chain polyethers in transition-metal complexes. Part 3. The X-ray structures of 1-(o-carboxymethoxyphenoxy)-2-(o-hydroxyphenoxy)ethane (HL) and its acid salt, KHL2, a possible intermediate in the formation of Co(KL2)2 David L. Hughes and Jonathan N. Wingfield, pp 1187 DOI:10.1039/DT9840001187

The ground electronic state of quadridentate salicylaldehyde Schiff base-cobalt(II) complexes in non- and weakly co-ordinating solvents Kouto Migita, Catharina T. Migita and Masamoto Iwaizumi, pp 1195 DOI:10.1039/DT9840001195

Decomposition reactions of cationic ruthenium formyl complexes Garry Smith and David J. Cole-Hamilton, pp 1203 DOI:10.1039/DT9840001203

Reactions of ruthenium formyl and related complexes with nitroxide spin traps Garry Smith, Leslie H. Sutcliffe and David J. Cole-Hamilton, pp 1209 DOI:10.1039/DT9840001209

Synthesis and characterisation of disubstituted di-µ-methylene-bis(-pentamethylcyclopentadienyl)dirhodium(IV) complexes; X-ray structure of [{(C5Me5)Rh}2(µ-CH2)2(CO)2]2+ Kiyoshi Isobe, Seichi Okeya, Neil J. Meanwell, Arnold J. Smith, Harry Adams and Peter M. Maitlis, pp 1215 DOI:10.1039/DT9840001215

Phosphomolybdic acid as a reoxidant in the palladium(II)-catalysed oxidation of but-1-ene to butan-2-one Suzanne F. Davison, Brian E. Mann and Peter M. Maitlis, pp 1223 DOI:10.1039/DT9840001223

Kinetics of the 1 : 1 complexing of oxalate to hexa-aquamolybdenum(III) Helen M. Kelly, David T. Richens and A. Geoffrey Sykes, pp 1229 DOI:10.1039/DT9840001229

Bimetallic systems. Part 5. Isonitrile-platinum(II)- or -palladium(II)-bis(diphenylphosphino)methane complexes including heterobimetallics with silver(I), gold(I), or rhodium(I) C. Richard Langrick, Paul G. Pringle and Bernard L. Shaw, pp 1233 DOI:10.1039/DT9840001233

Synthetic and structural studies of tin(IV) complexes of crown ethers Paul A. Cusack, Bhagwati N. Patel, Peter J. Smith, David W. Allen and Ian W. Nowell, pp 1239 DOI:10.1039/DT9840001239

Tin-119 nuclear magnetic resonance studies of some mixed halogeno-complexes of tin(IV) Keith B. Dillon and Andrew Marshall, pp 1245 DOI:10.1039/DT9840001245

Notes. Dependence of metal-halogen vibrational frequency on the metal co-ordination number in some Group 1B metal halide complexes MX(PPh3)n Graham A. Bowmaker and David Alan Rogers, pp 1249 DOI:10.1039/DT9840001249

Bis(cyclopentadienyl)zirconium(III) complexes containing a metal-metal bond: synthesis and properties of zirconium(II) and zirconium(III) complexes Giovanni Fochi, Giuliano Guidi and Carlo Floriani, pp 1253 DOI:10.1039/DT9840001253

Exchange of bridging and terminal hydrides in [Co(terpy)(H2BH2)] Donald J. Wink and N. John Cooper, pp 1257 DOI:10.1039/DT9840001257

Stereochemical non-rigidity of the indenyl ligand in the compound [CrRh(µ-CO)2(CO)2(-C9H7)(-C6H3Me3-1,3,5)] Robert D. Barr, Michael Green, Todd B. Marder and F. Gordon A. Stone, pp 1261 DOI:10.1039/DT9840001261

Additions and corrections Gregory K. Maclean, Jack Passmore and Peter S. White, pp 1265 DOI:10.1039/DT9840001265

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400BX023

Issue 7

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FX025

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FP025

Donor-acceptor complexes of organotellurium compounds. Physical studies: tellurium-125 Mössbauer spectroscopy for the measure of charge transfer. Crystal and molecular structure of the complex dibenzotellurophene-7,7,8,8-tetracyano-p-quinodimethane Harkesh B. Singh, William R. McWhinnie, Ronald F. Ziolo and Colin H. W. Jones, pp 1267 DOI:10.1039/DT9840001267

Hydrogen bonds in Na2S·5H2O: X-ray diffraction and vibrational spectroscopic study Kurt Mereiter, Anton Preisinger, Andrea Zellner, Werner Mikenda and Heinz Steidl, pp 1275 DOI:10.1039/DT9840001275

The shapes and energetics of dimeric lithium and sodium cyanides. Ab initio molecular-orbital calculations Colin J. Marsden, pp 1279 DOI:10.1039/DT9840001279

On the structure and properties of iron halide-graphite intercalates: a comparison of the reactivity of free and graphite-intercalated iron(III) chloride Robert Schlögl and William Jones, pp 1283 DOI:10.1039/DT9840001283

Platinum complexes of the methyl esters of dithiocarbazic acid and 3-phenyldithiocarbazic acid Claudio Battistoni, Anna Maria Giuliani, Ernesto Paparazzo and Franco Tarli, pp 1293 DOI:10.1039/DT9840001293

Novel tin(II) sites in X-ray crystal structures of the tin(II) halide sulphates K3Sn2(SO4)3X (X = Br or Cl) John D. Donaldson and Susan M. Grimes, pp 1301 DOI:10.1039/DT9840001301

The mechanism of displacement of diene from [M(4-diene)(CO)4](M = Cr, Mo, or W, diene = norbornadiene; M = Mo, diene = cyclo-octa-1,5-diene) and the cistrans isomerization of [M(CO)4L2] complexes [L = PBu3, P(OMe)3, or P(OPh)3] Denis T. Dixon, John C. Kola and James A. S. Howell, pp 1307 DOI:10.1039/DT9840001307

Silver(I) isocyanide complexes: spectroscopic features and reactions with neutral ligands Andrew Bell and Dennis A. Edwards, pp 1317 DOI:10.1039/DT9840001317

Equilibrium studies and kinetics of solvent exchange with five- and six-co-ordinate mono- and bis-(solvent)(1,4,8,11-tetramethyl-1,4,8,11-tetra-azacyclotetradecane)nickel(II) perchlorate by oxygen-17 nuclear magnetic resonance spectroscopy Peter Moore, John Sachinidis and Gerald R. Willey, pp 1323 DOI:10.1039/DT9840001323

Nitrogen-15 nuclear magnetic resonance spectroscopy of hydrazido(2-)-, imido-, and nitrido-complexes of molybdenum and tungsten Susan Donovan-Mtunzi, Raymond L. Richards and Joan Mason, pp 1329 DOI:10.1039/DT9840001329

Bis[O-methyl (S)-penicillaminato]-cis-dioxomolybdenum(VI), [MoO2{(S)-pen-OMe}2]; structure and spectroscopic studies Iain Buchanan, C. David Garner and William Clegg, pp 1333 DOI:10.1039/DT9840001333

The reaction of molybdenum and tungsten carbyne complexes with sulphur and selenium; crystal structures of [Mo{2-(S2CCH2But)}-(CO)2(-C5H5)] and [W{2-(S2CC6H4Me-4)}(CO)2(-C5H5)] Daljit S. Gill, Michael Green, Karen Marsden, Iain Moore, A. Guy Orpen, F. Gordon A. Stone, Ian D. Williams and Peter Woodward, pp 1343 DOI:10.1039/DT9840001343

Synthesis, structure, and spectroscopic properties of copper(II) compounds containing nitrogen-sulphur donor ligands; the crystal and molecular structure of aqua[1,7-bis(N-methylbenzimidazol-2-yl)-2,6-dithiaheptane]copper(II) perchlorate Anthony W. Addison, T. Nageswara Rao, Jan Reedijk, Jacobus van Rijn and Gerrit C. Verschoor, pp 1349 DOI:10.1039/DT9840001349

Synthesis and characterisation of 1,7-dimethyl-1,4,7,10-tetra-azacyclododecane: crystal structure of the nickel(II) bromide monohydrate complex of this macrocycle; thermodynamic studies of protonation and metal complex formation Mario Ciampolini, Mauro Micheloni, Nicoletta Nardi, Piero Paoletti, Paolo Dapporto and Fabrizio Zanobini, pp 1357 DOI:10.1039/DT9840001357

Structural studies of matrix-isolated alkali-metal perchlorates: proof of a bidentate interaction Ian R. Beattie and John E. Parkinson, pp 1363 DOI:10.1039/DT9840001363

Studies of the Pfeiffer effect induced in tris(pyridine-2,6-dicarboxylato)terbate(III) by monosaccharide aldose sugars Harry G. Brittain, pp 1367 DOI:10.1039/DT9840001367

Kinetics and mechanisms of reduction of a sexidentate di(oxime-imine) complex of nickel(IV) with two-electron reductants, 1,2-di-hydroxybenzene and 1,4-dihydroxybenzene Sheila F. Munn, A. Martin Lannon, Mauro C. M. Laranjeira and A. Graham Lappin, pp 1371 DOI:10.1039/DT9840001371

Hexasulphur tetranitrogen dichloride, S6N4Cl2: crystal growth and crystal structure Ronald W. H. Small, Arthur J. Banister and Zdenek V. Hauptman, pp 1377 DOI:10.1039/DT9840001377

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 23. Alkyne insertion into heteronuclear dimetal compounds with bridging tolylmethylidyne ligands; crystal structures of [FeW{µ-C(C6H4Me-4)C(Me)C(Me)}(CO)5(-C5H5)] and [Fe2W(µ3-CC6H4Me-4)(µ-Me3SiC2SiMe3)(µ-CO)(CO)6(-C5H5)] John C. Jeffery, Kevin A. Mead, Hayat Razay, F. Gordon A. Stone, Michael J. Went and Peter Woodward, pp 1383 DOI:10.1039/DT9840001383

Comparison of the thermochemistry of the difluorides and potassium hexafluorometallates(IV) of the elements of the germanium triad with that of the elements of the nickel triad : a study of the inert-pair effect Keith G. G. Hopkins and Peter G. Nelson, pp 1393 DOI:10.1039/DT9840001393

Crystal structures of cadmium(II) complexes with uridine 5-monophosphate (5-UMP), [Cd(5-UMP)(H2O)2]·2H2O, and with 2-deoxyuridine 5-monophosphate (5-dUMP), [Cd2(5-dUMP)2(H2O)6]: phosphate-only metal bonding Katsuyuki Aoki and Wolfram Saenger, pp 1401 DOI:10.1039/DT9840001401

High oxidation state fluoro-rhenium species: preparation and characterization of [ReF6]+, [ReF4O]+, and [Re2F9O2]+, and the crystal structure of [Re2F9O2]+[Sb2F11]- Gary J. Schrobilgen, John H. Holloway and David R. Russell, pp 1411 DOI:10.1039/DT9840001411

Heterobinuclear complexes formed from [3,6-bis(2-pyridyl)pyridazine]-nitrosylbis(triphenylphosphine)iridium(2+) and palladium(II) or platinum(II) Mauro Ghedini and Francesco Neve, pp 1417 DOI:10.1039/DT9840001417

Template synthesis and ionophorous properties of substituted crown ethers towards alkali-metal ions Brian R. Bowsher, Antony J. Rest and Brian G. Main, pp 1421 DOI:10.1039/DT9840001421

Synthesis and nuclear magnetic resonance study of the auranonaborane and diauradecaborane arachno-type compounds, [4-(S2CNEt2)-arachno-4-AuB8H12] and [6,9-(S2CNEt2)2-arachno-6,9-Au2B8H10]; crystal and molecular structure of [6,9-(S2CNEt2)2-arachno-6,9-Au2B8H10] Michael A. Beckett, Janet E. Crook, Norman N. Greenwood and John D. Kennedy, pp 1427 DOI:10.1039/DT9840001427

Co-ordination chemistry of higher oxidation states. Part 11. The reaction of nickel(II) iodo-complexes with molecular iodine; crystal and molecular structure of [Ni{o-C6H4(PMe2)2}2][I3]2·2I2 Leslie R. Gray, Simon J. Higgins, William Levason and Michael Webster, pp 1433 DOI:10.1039/DT9840001433

Photo-oxidation of iron(II) in water between pH 7.5 and 4.0 Paul S. Braterman, A. Graham Cairns-Smith, Robert W. Sloper, T. George Truscott and Marjory Craw, pp 1441 DOI:10.1039/DT9840001441

Model reactions of molybdo-oxidase. Importance of water on the air oxidation of PPh3 by catalysis of [MoVIO2(Cys-OR)2](Cys-OR = S-deprotonated cysteine ester; R = Me, Et, Pri, or CH2Ph) in NN-dimethylformamide Norikazu Ueyama, Masahiro Yano, Hiroshi Miyashita, Akira Nakamura, Mikiharu Kamachi and Schun-ichi Nozakura, pp 1447 DOI:10.1039/DT9840001447

Monoalkyl-di-µ-methylene-bis[(-pentamethylcyclopentadienyl)-rhodium(IV)] complexes and the intramolecular migration of alkyl groups between two metal atoms Seichi Okeya, Neil J. Meanwell, Brian F. Taylor, Kiyoshi Isobe, Amelio Vázquez de Miguel and Peter M. Maitlis, pp 1453 DOI:10.1039/DT9840001453

Notes. Studies on copper(II) complexes of ortho-quinone mono-oximes: reaction of bis(4-chloro-1,2-benzoquinone 2-oximato)copper(II) with dimethyl acetylenedicarboxylate under various experimental conditions Carla Bisi Castellani and Roberto Millini, pp 1461 DOI:10.1039/DT9840001461

Synthesis and X-ray structure of tris(N,N-diethyldithiocarbamato)-hydrogensulphidomolybdenum(IV)-tetrahydrofuran (1/1) Nadine Dupré, Hugo M. J. Hendriks and Jeanne Jordanov, pp 1463 DOI:10.1039/DT9840001463

Platinum(IV) complexes containing a cationic amine ligand: crystal structure of [(2-aminoethyl)ammonium]pentachloroplatinum(IV) monohydrate Francesco P. Fanizzi, Giovanni Natile, Luciana Maresca, Anna M. Manotti-Lanfredi and Antonio Tiripicchio, pp 1467 DOI:10.1039/DT9840001467

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400BX027

Issue 8

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FX029

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FP029

Studies in nickel(IV) chemistry. Part 4. Kinetics of the electron transfer from L-ascorbic acid to tris(dimethylglyoximato)nickelate(IV) in aqueous medium Sridhara Acharya, Gautam Neogi, Rama Krushna Panda and Dorai Ramaswamy, pp 1471 DOI:10.1039/DT9840001471

Kinetics of oxidation of hydrazine and of t-butylhydrazine using tris(dimethylglyoximato)nickelate(IV) in the presence of added Cu2+(aq) Sridhara Acharya, Gautam Neogi, Rama Krushna Panda and Dorai Ramaswamy, pp 1477 DOI:10.1039/DT9840001477

Functional metal–porphyrazine derivatives and their polymers. Part 11. Secondary fuel cells based on oxygen reduction at a platinum electrode modified by metal–2,9,16,23-tetracarboxyphthalocyanine covalently bound to poly(2-vinylpyridine–styrene) Okikazu Hirabaru, Tomohiro Nakase, Kenji Hanabusa, Hirofusa Shirai, Kiichi Takemoto and Nobumasa Hojo, pp 1485 DOI:10.1039/DT9840001485

Nickel(II), cobalt(II), and iron(II) lacunar complexes having very small cavities: syntheses, properties, and reactions with dioxygen Norman Herron, Madhav Y. Chavan and Daryle H. Busch, pp 1491 DOI:10.1039/DT9840001491

Oxidation and reduction behaviour of copper(II) complexes with open-chain analogues of tetra-aza macrocycles Luigi Fabbrizzi, Antonio Poggi and Piero Zanello, pp 1495 DOI:10.1039/DT9840001495

Kinetics and mechanism of electron-transfer reactions of bis(1,4,7-triazacyclononane)nickel-(II) and -(III) complexes Alexander McAuley, Paul R. Norman and Olesegun Olubuyide, pp 1501 DOI:10.1039/DT9840001501

Resonance-Raman and infrared spectra of the dimeric iron–chalcogenide complexes [Fe2X2(YR)4]2–(X and Y = S or Se) Peter Beardwood and John F. Gibson, pp 1507 DOI:10.1039/DT9840001507

Reactions of tetraphosphorus trisulphide with organic disulphides under ultraviolet irradiation, and with sulphuryl chloride Faleh H. Musa and Bruce W. Tattershall, pp 1517 DOI:10.1039/DT9840001517

Geminal bis[(triphenylphosphoranylidene)amino]cyclotriphosphazenes synthesis: substitution reactions, and nuclear magnetic resonance spectra Cees Lensink, Barteld de Ruiter and Johan C. van de Grampel, pp 1521 DOI:10.1039/DT9840001521

Some urea and phosphine oxide complexes of thorium(IV) and uranium(IV) trihalogenoacetates Ikhtiar Ahmed and Kenneth W. Bagnall, pp 1527 DOI:10.1039/DT9840001527

Kinetics and mechanisms of redox reactions in aqueous solution. Part 9. Permanganate oxidation of phosphorous acid in perchlorate solution Raj N. Mehrotra, pp 1531 DOI:10.1039/DT9840001531

Chemical shift parametrization for metal-ion nuclear magnetic resonance spectroscopy of d6 transition metal complexes Nenad Jurani, pp 1537 DOI:10.1039/DT9840001537

Reactions of [Ni2(-C5H5)2{HC2C(CH2)CH3}] with [M3(CO)12](M = Ru or Os) in the presence of hydrogen. Synthesis and crystal structure of the new heterotetrametallic complex [Ni2Fe2(-C5H5)2(CO)6{C2(H)C(CH2)CH3}] and spectroscopic characterization of a planar isomer Maria Luisa Nanni Marchino, Enrico Sappa, Anna Maria Manotti Lanfredi and Antonio Tiripicchio, pp 1541 DOI:10.1039/DT9840001541

Preparation and nuclear magnetic resonance study of phosphorus–fluorine compounds undergoing intramolecular exchange. Part 4. Rotameric forms of 1-piperidyltrifluorophosphoranes Alan Connelly and Robin K. Harris, pp 1547 DOI:10.1039/DT9840001547

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 24. Complexes of the pentamethylcyclopentadienylcopper group and the crystal structures of the compounds [CuPtW(µ-3CC6H4Me-4)(CO)2(PMe3)2(-C5H5)(-C5Me5)] and [CuRh2(µ-CO)2(-C5Me5)3] Gabino A. Carriedo, Judith A. K. Howard and F. Gordon A. Stone, pp 1555 DOI:10.1039/DT9840001555

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 25. Protonations of tolylmethylidyne ligands bridging tungsten–chromium, –cobalt, and –platinum bonds and the X-ray crystal structure of [PtW{µ-:3-CH(C6H4Me-4)}(CO)2(PMe3)2(-C5H5)][BF4] John C. Jeffery, Jill C. V. Laurie, Iain Moore, Hayat Razay and F. Gordon A. Stone, pp 1563 DOI:10.1039/DT9840001563

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 26. Reactions of the compounds [PtW{µ-:3-CH(C6H4Me-4)}(CO)2(PR3)2(-C5H5)][BF4](PR3= PMe3, PMe2Ph, or PMePh2) and [PtW{µ-:3-C(Me)C6H4Me-4}(CO)2(PMe3)2(-C5H5)][SO3CF3] with nucleophiles; X-ray crystal structure of [PtW(µ-H){µ-CH(C6H4Me-4)}(CO)2(PMe3)2(-C5H5)] John C. Jeffery, Iain Moore and F. Gordon A. Stone, pp 1571 DOI:10.1039/DT9840001571

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 27. Studies on the compounds [MW{µ-:3-CH(C6H4Me-4)}(CO)2Ln(-C5H5)][BF4][MLn= Pt(PR3)2 or Co(CO)(-C5Me5)]; X-ray crystal structures of [CoW{µ-:3-C-(C6H4Me-4)C(Me)C(Me)H}(µ-CO)(CO)(-C5H5)(-C5Me5)][BF4] and [PtW{µ-CH(C6H4Me-4)}(µ-CO)(PMe3)2(-MeC2Me)(-C5H5)][BF4] John C. Jeffery, Iain Moore, Hayat Razay and F. Gordon A. Stone, pp 1581 DOI:10.1039/DT9840001581

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 28. Synthesis and X-ray crystal structures of the compounds [MoW2(µ-CR)2(µ-CO)2(CO)4(-C5H5)2] and [AuW2(µ-CR)2(CO)4(-C5H5)2][PF6](R = C6H4Me-4) Gabino A. Carriedo, Judith A. K. Howard, Karen Marsden, F. Gordon A. Stone and Peter Woodward, pp 1589 DOI:10.1039/DT9840001589

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 29. Synthesis of rhenium–tungsten compounds; X-ray crystal structures of [ReW2(µ-Br)(µ-L)(µ-CC6H4Me-4)(µ3-CC6H4Me-4)(CO)3(-C5H5)2](L = CO or O) Gabino A. Carriedo, John C. Jeffery and F. Gordon A. Stone, pp 1597 DOI:10.1039/DT9840001597

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 30. Synthesis of the vanadium–tungsten complexes [VW(µ-CR)(CO)2(-C5H5)3](R = C6H4Me-4 or Me) and the crystal structure of the tolylmethylidyne compound Ulrich Behrens and F. Gordon A. Stone, pp 1605 DOI:10.1039/DT9840001605

Mössbauer and nuclear magnetic resonance spectroscopic studies on Myocrisin, Solganol, Auranofin, and related gold(I) thiolates Ali K. H. Al-Sa'ady, Karen Moss, Charles A. McAuliffe and R. V. (Dick) Parish, pp 1609 DOI:10.1039/DT9840001609

Comparative electrochemistry of cis-MoOS2+, MoO22+, and MoS22+ centres in complexes of the type cis-[MoY2L2](Y = O and/or S, HL = 1-hydroxypiperidine). Comments on active and desulpho-forms of xanthine oxidase and xanthine dehydrogenase Stuart Bristow, C. David Garner and Christopher J. Pickett, pp 1617 DOI:10.1039/DT9840001617

Mercury(II) halide complexes of tertiary phosphines. Part 9. Study of the tris(2-cyanoethyl)phosphine complexes [HgX2{P(CH2CH2CN)3}m](X = Cl, Br, or I; m= 1 or 2): crystal structures of [HgBr2{P(CH 2CH2CN)3}2]· Me2CO and [{HgCl2[P(CH2CH2CN)3]}n] Norman A. Bell, Michael Goldstein, Lorraine A. March and Ian W. Nowell, pp 1621 DOI:10.1039/DT9840001621

The vibrational spectrum of a strong O–H F hydrogen bond: infrared and Raman spectra of the potassium fluoride–succinic acid adduct Deborah J. Jones, John Emsley and Jacques Rozičre, pp 1625 DOI:10.1039/DT9840001625

Some aspects of the radiolysis of cobalt(II) iminodiacetate in aqueous solution Elapulli V. Srisankar, Naresh C. Saha, Parikshit C. Mandal and Sudhindra N. Bhattacharyya, pp 1629 DOI:10.1039/DT9840001629

Bis(diphenylphosphino)methane complexes of ruthenium(0) and ruthenium(II) Bruno Chaudret, Gérard Commenges and René Poilblanc, pp 1635 DOI:10.1039/DT9840001635

Displacement by chloride of pyridine-2-carboxylate from dichloro(pyridine-2-carboxylato)gold(III) in acidic solution; the position of ring opening Giuliano Annibale, Luciano Canovese, Lucio Cattalini, Giampaolo Marangoni, Gianni Michelon and Martin L. Tobe, pp 1641 DOI:10.1039/DT9840001641

A kinetic and equilibrium study of the reaction of glycine with chromium(III) in aqueous solution M. A. Abdullah, J. Barrett and P. O'Brien, pp 1647 DOI:10.1039/DT9840001647

Thermodynamics of metal complexes with ligand–ligand interaction. Mixed complexes of copper(II) and zinc(II) with adenosine 5-triphosphate and L-histidine or histamine Giuseppe Arena, Rosario Call, Vincenzo Cucinotta, Salvatore Musumeci, Enrico Rizzarelli and Silvio Sammartano, pp 1651 DOI:10.1039/DT9840001651

Synthesis and reactivity of binuclear cyclopentadienylrhodium nitrosyl cations, and the X-ray structure of [Rh2(µ-CO)(µ-NO)(-C5Me5)2][PF6] Sara Clamp, Neil G. Connelly, Judith A. K. Howard, Ian Manners, John D. Payne and William E. Geiger, pp 1659 DOI:10.1039/DT9840001659

Electron spin resonance studies of a range of stannane radical cations Akinori Hasegawa, Shoji Kaminaka, Toshio Wakabayashi, Michiro Hayashi, Martyn C. R. Symons and Jan Rideout, pp 1667 DOI:10.1039/DT9840001667

Organic chemistry of dinitrogen and related ligands. Part 6. Crystal and molecular structure of [WBr(dppe)2{N2CN(Me)CH2CH2NMe}][PF6](dppe = Ph2PCH2CH2PPh2), a complex in which fluxional behaviour results from steric destabilisation of the ground state Howard M. Colquhoun and David J. Williams, pp 1675 DOI:10.1039/DT9840001675

Metal complexes of sulphur–nitrogen chelating agents. Part 11. Synthesis, characterisation, and thermodynamics of nucleophilic substitution reactions of monohalogeno nickel(II) complexes of tridentate ligands of the type SNN in solution and the solid state Rita Roy, Muktimoy Chaudhury, Santosh K. Mondal and Kamalaksha Nag, pp 1681 DOI:10.1039/DT9840001681

Solid state and ethanolic solution behaviour of N-tosylglycinate–copper(II) complexes. Crystal and molecular structure of a strongly coupled polymeric N-tosylglycinatocopper(II) complex Luciano Antolini, Ledi Menabue, Gian Carlo Pellacani, Giovanna Battistuzzi Gavioli, Guilia Grandi, Luigi Pietro Battaglia, Anna Bonamartini Corradi and Giuseppe Marcotrigiano, pp 1687 DOI:10.1039/DT9840001687

Preparation, structural studies, and some reactions of new heterobinuclear complexes containing molybdenum, tungsten, or manganese and rhodium or copper; X-ray crystal structures of [MoRh(CO)(µ-CO)2(PPh3)2(-C5H5)] and two isomers of [CuW(CO)3(PPh3)2(-C5H5)] Laurence Carlton, W. Edward Lindsell, Kevin J. McCullough and Peter N. Preston, pp 1693 DOI:10.1039/DT9840001693

Dinitrogen binding and electrochemistry in complexes of molybdenum and tungsten Wasif Hussain, G. Jeffery Leigh, Hapipah Mohd. Ali, Christopher J. Pickett and Douglas A. Rankin, pp 1703 DOI:10.1039/DT9840001703

Secondary bonding. Part 13. Aryl-tellurium(IV) and -iodine(III) acetates and trifluoroacetates. The crystal and molecular structures of bis-(p-methoxyphenyl)tellurium diacetate, µ-oxo-bis[diphenyltrifluoroacetoxytellurium] hydrate, and [bis(trifluoroacetoxy)iodo]benzene Nathaniel W. Alcock, W. David Harrison and Colin Howes, pp 1709 DOI:10.1039/DT9840001709

Studies of dioxamide and dithio-oxamide metal complexes. Part 2. Synthesis and spectral characterisation of RNHC(S)C(S)NHR (R = alkyl or aryl) complexes with SbX3(X = Cl or Br), BiCl3, SnX4(X = Cl or Br), and TiCl4. Crystal and molecular structures of NN-di-isopropyldithio-oxamide (L3) and SbCl3(L3)1.5 Michael G. B. Drew, Jonathan M. Kisenyi, Gerald R. Willey and Shem O. Wandiga, pp 1717 DOI:10.1039/DT9840001717

Studies of dioxamide and dithio-oxamide metal complexes. Part 3. Confirmation of NN-disubstituted dithio-oxamides as SS-bidentate chelating ligands. Crystal and molecular structures of the six-co-ordinate tin(IV) complex SnBr4L1(L1=NN-di-n-butyldithio-oxamide) and the seven-co-ordinate bismuth(III) complex BiCl3(L2)2(L2=NN-diethyldithio-oxamide) Michael G. B. Drew, Jonathan M. Kisenyi and Gerald R. Willey, pp 1723 DOI:10.1039/DT9840001723

Unexpected cyclisation of NN-diethyldithiomalonamide. Crystal and molecular structure of [EtNHC(S)CHC(S)NHEt]2[SnCl6] Michael G. B. Drew, Jonathan M. Kisenyi and Gerald R. Willey, pp 1727 DOI:10.1039/DT9840001727

Alkyl, hydrido-, and related compounds of ruthenium(II) with trimethylphosphine. X-Ray crystal structures of hydrido(tetrahydroborato-HH)tris(trimethylphosphine)ruthenium(II), tri-µ-chloro-bis[tris(trimethylphosphine)ruthenium(II)] tetrafluoroborate, and bis[cis-methyltetrakis(trimethylphosphine)ruthenio]mercury(II)–tetrahydrofuran(1/1) John A. Statler, Geoffrey Wilkinson, Mark Thornton-Pett and Michael B. Hursthouse, pp 1731 DOI:10.1039/DT9840001731

Synthesis of iron(II)C2-capped strapped porphyrin complexes and their reaction with dioxygen Jack E. Baldwin, James H. Cameron, Maxwell J. Crossley, Ian J. Dagley, Simon R. Hall and Thomas Klose, pp 1739 DOI:10.1039/DT9840001739

The selective reduction of benzene to cyclohexene mediated by platinum metal complexes: X-ray crystal structure of [(5-C5Me5)Ir(5-C6H6CH2NO2)][BF4] Stephen L. Grundy, Arnold J. Smith, Harry Adams and Peter M. Maitlis, pp 1747 DOI:10.1039/DT9840001747

The molecular structure of trimethylamine–gallane in the gas phase as determined by electron diffraction Paul L. Baxter, Anthony J. Downs and David W. H. Rankin, pp 1755 DOI:10.1039/DT9840001755

Notes. Crystal structure and electrical conduction properties of Rb[Pt{S2C2(CN)2}2]·2H2O. The precursor of a one-dimensional metal Munir M. Ahmad, Derek J. Turner, Allan E. Underhill, Akiko Kobayashi, Yukiyoshi Sasaki and Hayao Kobayashi, pp 1759 DOI:10.1039/DT9840001759

Synthesis of tetrafluoronickelate(II) and tetrafluorozincate(II) complexes from aqueous media: a novel route to fluorometalates Mihir K. Chaudhuri, Soumitra K. Ghosh and Zavei Hiese, pp 1763 DOI:10.1039/DT9840001763

Preparation and crystal structure of nonacarbonyl-di-µ-hydrido-µ3-phenylimido-triangulo-triruthenium, [Ru3(µ-H)2(CO)9(µ3-NPh)] Sumit Bhaduri, Kalpathi S. Gopalkrishnan, William Clegg, Peter G. Jones, George M. Sheldrick and Dietmar Stalke, pp 1765 DOI:10.1039/DT9840001765

An unusual carbon–carbon -bond cleavage reaction on attempted methylation of the anionic alkene cluster [Os3H(µ-CO){CF3(H)CC(H)CF3}(CO)9]–; X-ray crystal structure of [OS3H(µ3-:2-CCCF3)(CO)9] Zain Dawoodi, Martin J. Mays and Kim Henrick, pp 1769 DOI:10.1039/DT9840001769

On the kinetics of the periodate + iodide reaction Francesco Ferranti and Antonio Indelli, pp 1773 DOI:10.1039/DT9840001773

Convenient preparation of cyclo-eicosasulphur (S20) from bis(-cyclopentadienyl)(pentasulphido)titanium(IV) Ralf Steudel and Reinhard Strauss, pp 1775 DOI:10.1039/DT9840001775

A novel synthetic procedure for the preparation of silicon sesquioxide at room temperature Bettadapura Srinivasaiah Suresh and Doddaballapur Krishnamurthy Padma, pp 1779 DOI:10.1039/DT9840001779

Synthesis and X-ray structure of [Ag2(Ph2X2)4][AsF6]2(X = S or Se); six-membered silver–sulphur and silver–selenium rings Herbert W. Roesky, Thomas Gries, Peter G. Jones, Karl-Ludwig Weber and George M. Sheldrick, pp 1781 DOI:10.1039/DT9840001781

Additions and corrections Oliver W. Howarth, Colin H. McAteer, Peter Moore and George E. Morris, pp 1785 DOI:10.1039/DT9840001785

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400BX031

Issue 9

Adducts of silicon tetrafluoride with aminocyclophosphazenes: synthesis and characterization Bettadapura S. Suresh, Vadapalli Chandrasekhar and Doddaballapur K. Padma, pp 1787 DOI:10.1039/DT9840001787

Reactions of bis(-cyclopentadienyl)dihydrido-molybdenum and -tungsten with acetatotrimethyl-lead. X-Ray structure and reactivity of the demethylated lead product containing molybdenum-lead bonds: µ-diacetatoplumbio-bis[bis(-cyclopentadienyl)hydrido-molybdenum](2 Pb-Mo) Marek M. Kubicki, René Kergoat, Jacques-E. Guerchais and Paul L'Haridon, pp 1791 DOI:10.1039/DT9840001791

An X-ray study at 298 and 120 K of the strong, symmetrical NHN bond in hydrogen diquinuclidin-3-one perchlorate Deborah J. Jones, Irmèla Brach and Jacques Rozière, pp 1795 DOI:10.1039/DT9840001795

-Lithium alkyls of -trimethylsilyl-p-xylenes and the synthesis of p-C6H4(CH2SnMe3)2 from a new di-Grignard reagent: crystal structure of [{Li(Me2NCH2CH2NMe2)}2{p-C6H4(CHSiMe3)2}] Wing-Por Leung, Colin L. Raston, Brian W. Skelton and Allan H. White, pp 1801 DOI:10.1039/DT9840001801

Bifunctional activation of a carbonyl group in the pentanuclear carbido-clusters [Os5C(CO)15] and [Os5C(CO)15l2] by alcohols: X-ray analysis of [Os5C(CO)14(CO2Et)H] and [Os5C(CO)14(CO2Me)l] Brian F. G. Johnson, Jack Lewis, William J. H. Nelson, J. Nichola Nicholls, Maria D. Vargas, Dario Braga, Kim Henrick and Mary McPartlin, pp 1809 DOI:10.1039/DT9840001809

Bimetallic systems. Part 6. Chromium(0)-, molybdenum(0)-, or tungsten(0)-platinum(II) acetylide complexes containing bridging Ph2PCH2PPh2, including their efficient formation from platinum-silver complexes by transmetallation. Crystal structure of [(p-MeC6H4CC)-Pt(µ-CCC6H4Me-p)(µ-Ph2PCH2PPh2)2W(CO)3] Adrian Blagg, Alan T. Hutton, Paul G. Pringle and Bernard L. Shaw, pp 1815 DOI:10.1039/DT9840001815

New methoxo-, hydroxo-, and pyrazolate-bridged complexes of rhodium(III). Crystal structures of [{Rh(C5Me5)}2(mpz)(OMe)2][ClO4](mpz = 3-methylpyrazolate), [{Rh(C5Me5)}2(Hdmpz)2(OH)2][BF4]2(Hdmpz = 3,5-dimethylpyrazole), and [{Rh(C5Me5)}2(pz)2(OH)]-[ClO4](pz = pyrazolate) Luis A. Oro, Daniel Carmona, María Pilar Lamata, María C. Apreda, Concepción Foces-Foces, Félix H. Cano and Peter M. Maitlis, pp 1823 DOI:10.1039/DT9840001823

Synthesis and reactions of heterobimetallic magnanese-palladium complexes. Crystal and molecular structure of [MnPdBr(CO)3-(µ-Ph2PCH2PPh2)2] Bernard F. Hoskins, Robyn J. Steen and Terence W. Turney, pp 1831 DOI:10.1039/DT9840001831

New carbide clusters in the cobalt subgroup. Part 12. Synthesis and X-ray characterization of the tetradecanuclear carbido-carbonyl cluster [Rh14C2(µ-CO)21(CO)12]2- Secondo Martinengo, Donatella Strumolo, (the late) Paolo Chini, Vincenzo G. Albano and Dario Braga, pp 1837 DOI:10.1039/DT9840001837

The replacement of one hydrido-ligand in [(-C5H5)NiOs3(µ-H)3(CO)9] by MPPh3+(M = Cu or Au). Crystal structure of [(-C5H5)NiOs3(µ-H)2-(µ-AuPPh3)(CO)9], the first gold-nickel-osmium cluster Pierre Braunstein, Jacky Rosé, Anna Maria Manotti-Lanfredi, Antonio Tiripicchio and Enrico Sappa, pp 1843 DOI:10.1039/DT9840001843

Structures, vibrational spectra, and ligand behaviour of tris(2-cyanoethyl)phosphine and its oxide, sulphide, and selenide Alexander J. Blake and Geoffrey P. McQuillan, pp 1849 DOI:10.1039/DT9840001849

Reactions of trimethylsilylated silicate anions in acidic media. Part 2. The influence of reaction parameters (The late) Gabriella Garzó, Dagobert Hoebbel, Anna Vargha and Kálmán Ujszászi, pp 1857 DOI:10.1039/DT9840001857

Oxygen-17 and carbon-13 relaxation studies of metal carbonyls: improved determination of 17O electric quadrupole couplings Silvio Aime, Roberto Gobetto, Domenico Osella, Geoffrey E. Hawkes and Edward W. Randall, pp 1863 DOI:10.1039/DT9840001863

Kinetics and mechanism of the oxidation of glycolic and glyoxylic acids by thallium(III) in acidic perchlorate solutions (Mrs.) Pushpa Gupta, Prem Dutt Sharma and Yugul Kishore Gupta, pp 1867 DOI:10.1039/DT9840001867

Kinetics and mechanism of the silver(I)-catalyzed oxidations of arsenic(III) and antimony(III) with peroxodiphosphate in acetate buffers Bharati Gupta, Krishna Swaroop Gupta and Yugul Kishore Gupta, pp 1873 DOI:10.1039/DT9840001873

Electronic structure and reactivity of pentamethylcyclopentadienyl complexes of cobalt, rhodium, and iridium : He-I and He-II photoelectron spectroscopic investigation Nicholas Dudeney, Olaf N. Kirchner, Jennifer C. Green and Peter M. Maitlis, pp 1877 DOI:10.1039/DT9840001877

A study of the electronic structure of the dimers [Co2(-C5Me5)2(CO)2], [Rh2(-C5Me5)2(CO)2], [Co2(-C5Me5)2(NO)2], and [Co2(-C5Me5)2-(CO)(NO)] by He-I and He-II photoelectron spectroscopy Nicholas Dudeney, Jennifer C. Green, Olaf N. Kirchner and Frank St.J. Smallwood, pp 1883 DOI:10.1039/DT9840001883

Heteroaryltin compounds. Preparation and characterisation of some 3-furyltin halides. Tin-119 nuclear magnetic resonance and Mössbauer studies of a series of heteroaryltin compounds David W. Allen, D. Jane Derbyshire, John S. Brooks, Stephen J. Blunden and Peter J. Smith, pp 1889 DOI:10.1039/DT9840001889

Photochemically generated superoxides of rhodium(III) Robert D. Gillard and Julio D. Pedrosa de Jesus, pp 1895 DOI:10.1039/DT9840001895

Iridanonaborane chemistry: preparation and characterization of some arachno-4-iridanonaboranes by nuclear magnetic resonance spectroscopy and single-crystal X-ray diffraction analysis Jonathan Bould, Janet E. Crook, Norman N. Greenwood and John D. Kennedy, pp 1903 DOI:10.1039/DT9840001903

Acceptor properties of some methyl- and ethyl-chlorophosphoranes and their derivatives with Lewis acids Robert M. K. Deng and Keith B. Dillon, pp 1911 DOI:10.1039/DT9840001911

The acceptor properties of some organophosphorus(V) bromides Robert M. K. Deng and Keith B. Dillon, pp 1917 DOI:10.1039/DT9840001917

Characterisation of cis-[CoCl2L]+ and two diastereoisomeric trans-[CoCl2L]+ complexes and studies of the aquation kinetics (L = C-meso-5,12-dimethyl-1,4,8,11-tetra-azacyclotetradecane) Robert W. Hay, Ramesh Bembi and Donald A. House, pp 1921 DOI:10.1039/DT9840001921

Synthesis and aquation kinetics of the cis-dichloro- and three diastereoisomeric trans-dichloro-complexes of cobalt(III) with the macrocyclic ligand C-rac-5,12-dimethyl-1,4,8,11-tetra-azacyclotetradecane Robert W. Hay, Donald A. House and Ramesh Bembi, pp 1927 DOI:10.1039/DT9840001927

Metal-metal bond fission and the formation of triosmium-alkene complexes via the reaction of [Os3(µ-H){µ3-2-CF3CC(H)CF3}(CO)10] with nucleophiles; a complete model for the catalytic reduction of an alkyne to an alkene by a cluster Zain Dawoodi and Martin J. Mays, pp 1931 DOI:10.1039/DT9840001931

Studies of pendant-arm macrocyclic ligands. Part 1. Synthesis of two new penta-aza ligands, and observation of pH-dependent reversible equilibria between trigonal-bipyramidal and square-planar forms of their nickel(II) and copper(II) complexes. Crystal structure of a trigonal-bipyramidal nickel(II) complex Nathaniel W. Alcock, Robert G. Kingston, Peter Moore and Colin Pierpoint, pp 1937 DOI:10.1039/DT9840001937

Hexacarbonyl complexes of dirhenium(I) containing E2Ph4(E = P, As, or Sb) ligands; X-ray crystal structure of [Re2Br2(CO)6(Sb2Ph4)] Ivan Bernal, James D. Korp, Fausto Calderazzo, Rinaldo Poli and Dario Vitali, pp 1945 DOI:10.1039/DT9840001945

Complex-forming properties of tyrosine isomers with transition metal ions Tamás Kiss and Arthur Gergely, pp 1951 DOI:10.1039/DT9840001951

Kinetics and mechanism of the decomposition of thionitrites derived from thioureas Michael S. Garley, Geoffrey Stedman and Hervine Miller, pp 1959 DOI:10.1039/DT9840001959

Tin-119 Mössbauer and X-ray crystallographic evidence for differences in the co-ordination of tin in oxalatostannates(II) and malonatostannates(II) Zai Arifin, Edward J. Filmore, John D. Donaldson and Susan M. Grimes, pp 1965 DOI:10.1039/DT9840001965

Kinetics of the solvolysis of trans-dichlorotetra(4-methylpyridine)-cobalt(III) ions in water + t-butyl alcohol mixtures Ibrahim M. Sidahmed and Cecil F. Wells, pp 1969 DOI:10.1039/DT9840001969

The production of class-II mixed-valence complexes in the redox reaction between dithiomalonamide and platinum(IV) or palladium(IV) Jean-Michel Bret, Paule Castan and Jean-Pierre Laurent, pp 1975 DOI:10.1039/DT9840001975

Synthesis, structure, and isomerisation of triruthenium and triosmium clusters derived from 3-dimethylaminoprop-1-yne; X-ray crystal structure of [Ru3-H(CO)9(Me2N+C-CCH2)] Silvio Aime, Domenico Osella, Alejandro J. Arce, Antony J. Deeming, Michael B. Hursthouse and Anita M. R. Galas, pp 1981 DOI:10.1039/DT9840001981

Carbon-nitrogen bond cleavage in 1-dimethylaminobut-2-yne and derived ligands in triruthenium and triosmium clusters Silvio Aime, Giorgio Jannon, Domenico Osella, Alejandro J. Arce and Antony J. Deeming, pp 1987 DOI:10.1039/DT9840001987

Chemistry of metallacyclobutanones. Part I . Synthesis and ring inversion of some highly puckered metallacyclobutan-3-one (slipped oxodimethylenemethane) complexes of platinum ; crystal structure of 2,4-bis(methoxycarbony1)-1,1-bis(triphenylphosphine)platinacyclobutan-3-one monohydrate David A Clarke, Raymond D. W. Kemmitt, Muhammed A. Mazid, Peter McKenna, David R. Russell, Michael D. Schilling and Lesley J. S. Sherry, pp 1993 DOI:10.1039/DT9840001993

Complexes of rhenium and osmium polyhydrides with metallic Lewis acids: X-ray crystal structure of [Ag{ReH7(PPhPrI2)2}2][PF6] Neil G. Connelly, Judith A. K. Howard, John L. Spencer and Pamela K. Woodley, pp 2003 DOI:10.1039/DT9840002003

Preparation and crystal structures of [As(CF3)2O(OH)]2, [As(CF3)-O(OH)Cl]2, and As4(CF3)6O6(OH)2; a novel cage structure containing four- and six-co-ordinated arsenic Rakesh Bohra, Herbert W. Roesky, Mathias Noltemeyer and George M. Sheldrick, pp 2011 DOI:10.1039/DT9840002011

Crystal structure and variable-temperature hydrogen-1 nuclear magnetic resonance spectrum of (dimethylnitratosilyl)[methyldiphenylsilyl]bis(trimethylsilyl)methane, C(SiMe3)2(SiMePh2)(SiMe2 ONO2) Colin Eaborn, Peter B. Hitchcock, Paul D. Lickiss, Alan Pidcock and Kazem D. Safa, pp 2015 DOI:10.1039/DT9840002015

Behaviour of alpha-functional organotransition metal compounds : nuclear magnetic resonance investigation of a novel Friedel-Crafts metallacyclisation of halogenomethyl(arylphosphine)platinum(ii) complexes Zhen-Yun Yang and G. Brent Young, pp 2019 DOI:10.1039/DT9840002019

A determination of the activation energy of cyclopentadienyl group rotation and molecular tumbling in [Fe(5-C5H5)(5-C5H4R)](R = CMe2Et or Bun) using carbon-13 nuclear magnetic resonance relaxation measurements Brian E. Mann, Catriona M. Spencer, Brian F. Taylor and Parvin Yavari, pp 2027 DOI:10.1039/DT9840002027

Aminodifluorophosphine: crystal and molecular structure at 95 K, and vibrational spectra of condensed phases Alexander J. Blake, Stephen Cradock, E. A. V. Ebsworth, David W. H. Rankin and Alan J. Welch, pp 2029 DOI:10.1039/DT9840002029

Reactions of cis-di-isocyanidebis(perfluorophenyl)gold(III) complexes with hydrazines. Crystal and molecular structure of cis-[Au{C(NHC6H4Me-p)=N-N(Ph)C(NHC6H4Me-p)}(C6F5)2] Rafael Usón, Antonio Laguna, M. Dolores Villacampa, Peter G. Jones and George M. Sheldrick, pp 2035 DOI:10.1039/DT9840002035

Triosmium clusters with ligands derived from -unsaturated ketones. X-ray crystal structures of [Os3H(CO)10(cis-MeCCHCOMe)] and [Os3H(OH)(CO)9(PMe2Ph)] Antony J. Deeming, Peter J. Manning, Ian P. Rothwell, Michael B. Hursthouse and Nigel P. C. Walker, pp 2039 DOI:10.1039/DT9840002039

Nuclear magnetic resonance investigations of configurational non-rigidity in dinuclear platinum(IV) complexes. Part 5. Intra-molecular rearrangements in the dinuclear platinum(IV) complexes of 1,3,5,7=tetrathiocane. X-Ray Crystal Structure of [(PtClMe3)2-(SCH2SCH2SCH2SCH2)] Edward W. Abel, Gary D. King, Keith G. Orrell, Vladimir Sik, T. Stanley Cameron and Klaus Jochem, pp 2047 DOI:10.1039/DT9840002047

Iron hexacyanoferrate films : spectroelectrochemical distinction and electrodeposition sequence of 'soluble' (K+-containing) and 'insoluble' (K+-free) Prussian Blue, and composition changes in polyelectrochromic switching Roger J. Mortimer and David R. Rosseinsky, pp 2059 DOI:10.1039/DT9840002059

Dihydrido(pentamethylcyclopentadienyl) bis(triethylsilyl)iridium(v) and related triphenylsilyl-rhodium(v) and -iridium(v) complexes Maria-Jesus Fernandez and Peter M. Maitlis, pp 2063 DOI:10.1039/DT9840002063

Preparation and properties of ditertiary phosphine complexes of ruthenium(0) Ricardo Obeso Rosete, David J. Cole-Hamilton and Geoffrey Wilkinson, pp 2067 DOI:10.1039/DT9840002067

Note. Evidence for through-space interactions between sulphur and nitrogen lone pairs in 2,2a,4,4a,6,6a-hexahydro-1,3,5-trithia-7-azacyclopenta[cd]-pentalene C. A. Stein, A. David Baker, Nita A. Lewis and Peter S. White, pp 2073 DOI:10.1039/DT9840002073

Preparation and crystal structure of tri-p-chloro-hexakis(tetrahydro-furan)dimagnesium(II) pentachloro(tetrahydrofuran)titanate(iv) Piotr Sobota, Józef Utko and Tadeusz Lis, pp 2077 DOI:10.1039/DT9840002077

Preparation and structure of tetraphenylphosphonium aquatetrachlorothionitrosylruthenate, [PPh4][Ru(NS)Cl4(H2O)] Jan W. Bats, Krishna K. Pandey and Herbert W. Roesky, pp 2081 DOI:10.1039/DT9840002081

Reductive nitrosylation of tetraoxometalates. single-pot and a virtually single-step synthesis of [Os(NO)(NCS)5]2- and its 1,10-phenanthroline and 2,2'-bipyridine derivatives directly from OsO4 in aqueous aerobic media Ramgopal Bhattacharyya and Alok Mohan Saha, pp 2085 DOI:10.1039/DT9840002085

Issue 10

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FX033

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FP033

Crystal structure of bis(2,2-bipyridyl)monochlorocopper(II) hexafluorophosphate monohydrate at 298 K and the electron spin resonance spectra of some bis(2,2-bipyridyl)copper(II) complexes to 4.2 K Suresh Tyagi, Brian Hathaway, Stefan Kremer, Horst Stratemeier and Dirk Reinen, pp 2087 DOI:10.1039/DT9840002087

Synthesis and co-ordination chemistry of a novel dinucleating chelating triazole ligand. The crystal structure of bis-µ-[4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole-N, µ-N1,µ-N2,N,]-bis[aquachloro-nickel(II)] dichloride tetrahydrate Fennegien S. Keij, Rudolf A. G. de Graaff, Jaap G. Haasnoot and Jan Reedijk, pp 2093 DOI:10.1039/DT9840002093

Kinetic studies on the oxidation of hexa-aquamolybdenum(III) with [IrCl6]2-, [Co(C2O4)3]3-, and aquavanadium(IV) David T. Richens, Mark A. Harmer and A. Geoffrey Sykes, pp 2099 DOI:10.1039/DT9840002099

Iron(III) phthalocyanines: oxidation and spin states of iron in iron phthalocyanines with carboxyl groups Nagao Kobayashi, Hirofusa Shirai and Nobumasa Hojo, pp 2107 DOI:10.1039/DT9840002107

Synthesis of mixed-metal clusters by the reaction of the unsaturated cluster [Os3(µ-H)2(CO)10] with transition-metal hydrides: the X-ray crystal structures of [Os3H3(CO)10{Cu(PPh3)}] and [Os3H3(CO)11{Ir(PPh3)}] Brian F. G. Johnson, Jack Lewis, Paul R. Raithby, S. N. Azman, B. Syed-Mustaffa, Michael J. Taylor, Kenton H. Whitmire and William Clegg, pp 2111 DOI:10.1039/DT9840002111

The preparation, 11B, 1H, and 31P nuclear magnetic resonance spectra, and properties of alkylidenetriphenylphosphorane-triborane(7), P(C6H5)3CHRB3H7(R = H, CH3, or C6H5) P. Chung Choi and John H. Morris, pp 2119 DOI:10.1039/DT9840002119

Formation and characterization of uranium(VI) chloride fluorides,UFnCl6-n(n= 1-5) Anthony J. Downs and Christopher J. Gardner, pp 2127 DOI:10.1039/DT9840002127

Reductive elimination of ketones from ruthenium(II) complexes David R. Saunders and Roger J. Mawby, pp 2133 DOI:10.1039/DT9840002133

Excited state redox properties of phthalocyanines: influence of the axial ligand on the rates of relaxation and electron-transfer quenching of the lowest 3* excited state G. J. Ferraudi and D. Rajendra Prasad, pp 2137 DOI:10.1039/DT9840002137

Dinuclear metal complexes. Part 3. Preparation and properties of hydroxo-bridged dicopper(II) complexes Sanat Kumar Mandal and Kamalaksha Nag, pp 2141 DOI:10.1039/DT9840002141

Synthesis and X-ray analysis of [PMePh3][Os8H(CO)22] and [Os8H(CO)22I] Brian F. G. Johnson, Jack Lewis, William J. H. Nelson, Maria D. Vargas, Dario Braga, Kim Henrick and Mary McPartlin, pp 2151 DOI:10.1039/DT9840002151

Interaction between uranium pentafluoride and the pentafluorides of vanadium, arsenic, niobium, tantalum, and bismuth, and the tetrafluoride of sulphur John H. Holloway, Garry M. Staunton, Klaus Rediess, Roland Bougon and David Brown, pp 2163 DOI:10.1039/DT9840002163

Reactions of some iron and tungsten mercapto-complexes with electrophilic acetylenes leading to novel metallacycles. The crystal and molecular structure of the 2-vinyl complex [W{2-C(CF3)C(CF3)C(O)SMe}(CO)2(5-C5H5)] Jack L. Davidson, Mahmoud Shiralian, Ljubica Manojlovi-Muir and Kenneth W. Muir, pp 2167 DOI:10.1039/DT9840002167

The preparation and co-ordination chemistry of 2,2 :6,2-terpyridine macrocycles. Part 3. Transient template effects involving dimethyltin(IV) Edwin C. Constable, Jack Lewis, Michael C. Liptrot and Paul R. Raithby, pp 2177 DOI:10.1039/DT9840002177

Thermochromism in copper(II) complexes: spectroscopic, thermal, and electrical properties and room-temperature crystal structure of bis(2,2-dimethylpropane-1,3-diamine)copper(II) dinitrate Ledi Menabue, Gian Carlo Pellacani, Luigi Pietro Battaglia, Anna Bonamartini Corradi, Franco Sandrolini, Antonio Motori, Russell J. Pylkki and Roger D. Willett, pp 2187 DOI:10.1039/DT9840002187

Electron addition to dirhodium complexes: an electron spin resonance study George W. Eastland and Martyn C. R. Symons, pp 2193 DOI:10.1039/DT9840002193

Synthesis of cis-[Pt(CCr)2(PPh3)2] and trans-[PtCl(CCR)(PPh3)2] complexes. Crystal and molecular structures of cis-[Pt{CCC(OH)Me2}2(PPh3)2]·H2O, trans-[PtCl{CCC(OH)Me2}(PPh3)2]·0.5PhMe, and trans-[PtCl{CCC(OH)MeEt}(PPh3)2]·Me2CO. Influence of bases and their concentration on the reactivity of cis-[PtCl2(PPh3)2] Anita Furlani, Silvia Licoccia, Maria V. Russo, Angiola Chiesi Villa and Carlo Guastini, pp 2197 DOI:10.1039/DT9840002197

Synthesis and study of imidazole-bearing copper(I) complexes and their reversible reaction with dioxygen Connie L. Merrill, Lon J. Wilson, Thomas J. Thamann, Thomas M. Loehr, Nancy S. Ferris and William H. Woodruff, pp 2207 DOI:10.1039/DT9840002207

Preparation and co-ordination properties of trans-chloro-[1-(p-methoxyphenylimino)-2-(methylimino)propyl]bis(triphenylphosphine)-platinum. Crystal and molecular structure of the ionic compound [PtCl{C(NR)CMeNMe[Rh(CO)2]}(PPh3)2][RhCl2(CO)2](R = C6H4OMe-p) Antonio Mantovani, Mario Pelloso, Giuliano Bandoli and Bruno Crociani, pp 2223 DOI:10.1039/DT9840002223

The 1,5-sigmatropic shift of a BR2 unit (R = H, F, OH, NH2, Cl, or SH) over a cyclopentadiene system Wolfgang W. Schoeller, pp 2233 DOI:10.1039/DT9840002233

The nature of the co-ordinate link. Part 11. Synthesis and phosphorus-31 nuclear magnetic resonance spectroscopy of platinum and palladium complexes containing side-bonded (E)-diphenyldiphosphene. X-Ray crystal and molecular structures of [Pd{(E)-PhPPPh}(Ph2PCH2CH2PPh2)] and [Pd{[(E)-PhPPPh][W(CO)5]2}(Ph2PCH2CH2PPh2)] Joseph Chatt, Peter B. Hitchcock, Alan Pidcock, Christopher P. Warrens and Keith R. Dixon, pp 2237 DOI:10.1039/DT9840002237

Equilibria in complexes of N-heterocyclic molecules. Part 34. Iron binding by caerulomycins Smita Dholakia and R. D. Gillard, pp 2245 DOI:10.1039/DT9840002245

Reactions of cis-[PtCl2(PEt3)2] with silver salts in aqueous solution, in the presence or absence of PEt3 Duncan W. Bruce, Rodney F. Jones and David J. Cole-Hamilton, pp 2249 DOI:10.1039/DT9840002249

Arene ligand exchange reactions in (4-cyclo-octa-1,5-diene)(6-naphthalene)ruthenium(0): a convenient route to new ruthenium(0) complexes Giovanni Vitulli, Paolo Pertici and Piero Salvadori, pp 2255 DOI:10.1039/DT9840002255

Reactions between trans-bis[1,2-bis(diethylphosphino)ethane]bis-(dinitrogen)molybdenum and hydrogen chloride in tetrahydrofuran : a mechanistic study Richard A. Henderson, pp 2259 DOI:10.1039/DT9840002259

Macrocyclic polyphosphane ligands : synthesis and characterisation of three diastereoisomers of 5,8,16,19-tetraphenyl-1,12-dithia-5,8,16,19-tetraphosphacyclodocosane and the X-ray crystal structure of a dinuclear nickel(II) complex of the isomer Mario Ciampolini, Nicoletta Nardi, Pier Luigi Orioli, Stefano Mangani and Fabrizio Zanobini, pp 2265 DOI:10.1039/DT9840002265

Preparation and crystal structure of a sulphinylnitrilo complex of rhodium(I): trans-[Rh(CO)(NSO)(PPh3)2] Herbert W. Roesky, Krishna K. Panday, Bernt Krebs and Mechtild Dartmann, pp 2271 DOI:10.1039/DT9840002271

1-[(5-C5R5)Co]B4H8(R = H or Me) sandwich complexes containing a square cyclic B4H82- ligand analogous to C4H42-: structural and spectroscopic studies T. Leon Venable, Ekk Sinn and Russell N. Grimes, pp 2275 DOI:10.1039/DT9840002275

Dinucleating macrocyclic Schiff bases derived from thiophene and their metal complexes: the crystal structures of a free macrocycle and of a disilver complex Neil A. Bailey, Michael M. Eddy, David E. Fenton, Stephen Moss, Anuradha Mukhopadhyay and Geraint Jones, pp 2281 DOI:10.1039/DT9840002281

Compartmental ligands. Part 9. Crystal and molecular structure of 6,11-dimethyl-7,10-diazahexadeca-5,11-diene-2,4,13,15-tetraone and of the related mononuclear copper(II) complex having N2O2 occupancy Neil A. Bailey, David E. Fenton, Stephen E. Gayda and Carl A. Phillips, pp 2289 DOI:10.1039/DT9840002289

Organic chemistry of dinuclear metal centres. Part 7. Ylides in the synthesis of organodiruthenium complexes: X-ray crystal structure of [Ru2(CO)2(µ-CO)(µ-CH2)(-C5H5)2] David L. Davies, Selby A. R. Knox, Kevin A. Mead, Michael J. Morris and Peter Woodward, pp 2293 DOI:10.1039/DT9840002293

Preparation and properties of difluorophosphino monothioacetate E. A. V. Ebsworth, Christopher M. Huntley and David W. H. Rankin, pp 2301 DOI:10.1039/DT9840002301

Formation constants of silver(I) complexes of some sulphur-containing dipeptides and valylvaline Anthony Q. Lyons and Leslie D. Pettit, pp 2305 DOI:10.1039/DT9840002305

Anion exchange resin supported cluster carbonyl anions as catalysts Sumit Bhaduri and Krishna R. Sharma, pp 2309 DOI:10.1039/DT9840002309

Activation of water with anionic platinum carbonyl clusters Amitabha Basu, Sumit Bhaduri and Krishna R. Sharma, pp 2315 DOI:10.1039/DT9840002315

X-Ray evidence of intermolecular stacking interactions in a ternary complex. Crystal and molecular structure of the complex bis(N-benzyloxycarbonylglycinato)(2,2-bipyridine)(propan-2-ol)-copper(II) Luciano Antolini, Ledi Menabue, Gian Carlo Pellacani, Monica Saladini, Marco Sola, Luigi Pietro Battaglia and Anna Bonamartini Corradi, pp 2319 DOI:10.1039/DT9840002319

Notes. Magnetic and spectroscopic properties of dimeric copper(II) complexes of N-benzyloxycarbonyl-substituted amino acid anions Luciano Antolini, Ledi Menabue, Gian Carlo Pellacani, Monica Saladini, Luigi Pietro Battaglia, Anna Bonamartini Corradi and Giuseppe Marcotrigiano, pp 2325 DOI:10.1039/DT9840002325

Dodecacarbonyltriosmium anchored on poly(4-vinylpyridine) Sumit Bhaduri, Hanif Khwaja and Bikshandarkovil A. Narayanan, pp 2327 DOI:10.1039/DT9840002327

Synthesis and tin-119 nuclear magnetic resonance studies of trichlorostannate(II) complexes of ruthenium, osmium, and iridium Hiroshi Moriyama, Paul S. Pregosin, Yasukazu Saito and Tetsu Yamakawa, pp 2329 DOI:10.1039/DT9840002329

Studies on the salts of planar metal dithiolate anions with the redox active 3,7-bis(dimethylamino)phenothiazin-5-ium cation (methylene blue) James S. Tonge and Allan E. Underhill, pp 2333 DOI:10.1039/DT9840002333

Synthesis and characterization of [Cr(CO)5{SCHCHC(SEt)2}] and [Cr(CO)5{SC(SCHCH2)SEt}] by ring-opening of 1,3-dithiolane-2-thione: crystal and molecular structure of [Cr(CO)5{SCHCHC(SEt)2}] Gert J. Kruger, Lorna Linford and Helgard G. Raubenheimer, pp 2337 DOI:10.1039/DT9840002337

Analysis of cobalt complexes by high-performance liquid chromatography using ion-pair reversed-phase, silica, or alumina columns Michael G. Burnett and Moustafa H. M. Abou-El-Wafa, pp 2341 DOI:10.1039/DT9840002341

Preparation and characterization of the adduct uranium pentafluoride-arsenic pentafluoride (1/1) Darja Gantar and Boris Frlec, pp 2345 DOI:10.1039/DT9840002345

5-Cyclopentadienyl and 5-methylcyclopentadienyl 1,2-bis(dimethylphosphino)ethane complexes of titanium(II). The crystal structure of Ti(C5H4Me)2(dmpe) Gregory S. Girolami, Geoffrey Wilkinson, Mark Thornton-Pett and Michael B. Hursthouse, pp 2347 DOI:10.1039/DT9840002347

Crystal and molecular structure of a complex bromide containing planar diaquadibromochromium(II) units Mark F. C. Ladd, Leslie F. Larkworthy, Gordon A. Leonard, David C. Povey and Santokh S. Tandon, pp 2351 DOI:10.1039/DT9840002351

Additions and corrections Katsuyuki Aoki and Wolfram Saenger, pp 2353 DOI:10.1039/DT9840002353

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400BX035

Issue 11

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FX037

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FP037

Carbene complexes. Part 18. Synthetic routes to electron-rich olefin-derived monocarbenerhodium(I) neutral and cationic complexes and their chemical and physical properties Michael J. Doyle, Michael F. Lappert, Peter L. Pye and Pilar Terreros, pp 2355 DOI:10.1039/DT9840002355

Synthesis, reactivity, and crystal and molecular structure of tetraphenyldibismuth, Bi2Ph4 Fausto Calderazzo, Rinaldo Poli and Giancarlo Pelizzi, pp 2365 DOI:10.1039/DT9840002365

Studies of pendant-arm macrocyclic ligands. Part 2. Comparison of the nickel(II), copper(II), and zinc(II) complexes of 11-(2-dimethylaminoethyl)-1,4,7,11-tetra-azacyclotetradecane, a pyridine analogue, and a related new tetra-aza macrocycle, 11-methyl-1,4,7,11-tetra-azacyclotetradecane Nathaniel W. Alcock, Peter Moore and Colin Pierpoint, pp 2371 DOI:10.1039/DT9840002371

Reaction of [RhH(NH2C6H4PPh2-o)2Cl]Cl with air; characterisation of the products by X-ray structure analysis of cis-[Rh(NH2C6H4PPh2-o)(NHC6H4PPh2-o)Cl2] and trans-[Rh(NH2C6H4PPh2-o)2Cl2][p-MeC6H4SO3]·MeCN Gregory J. Organ, Mervyn K. Cooper, Kim Henrick and Mary McPartlin, pp 2377 DOI:10.1039/DT9840002377

Reversible oxygen binding by the complex of poly(2-methyl-1-vinylimidazole) and heme in cold aqueous media Eishun Tsuchida, Hiroyuki Nishide and Hiroyuki Yokoyama, pp 2383 DOI:10.1039/DT9840002383

Synthesis and characterization of nickel(II) complexes with cyclic and linear Schiff-base ligands incorporating sulphur, nitrogen, and oxygen donor atoms Santokh S. Tandon and Leslie F. Larkworthy, pp 2389 DOI:10.1039/DT9840002389

Studies of technetium complexes. Part 6. The preparation, characterisation, and electron spin resonance spectra of salts of tetrachloro- and tetrabromo-nitridotechnetate(VI): crystal structure of tetraphenylarsonium tetrachloronitridotechnetate(VI) John Baldas, John F. Boas, John Bonnyman and Geoffrey A. Williams, pp 2395 DOI:10.1039/DT9840002395

X-Ray structural studies on free and co-ordinated 6-amino-8-mercaptopurinium cation in bismuth(III) complexes Luigi P. Battaglia and Anna Bonamartini Corradi, pp 2401 DOI:10.1039/DT9840002401

Reactions of olefin complexes with nitrene precursors. Synthesis of triazoline and aziridine complexes of palladium(II); crystal and molecular structure of trans-dichlorobis(11-phenyl-9,10,11-triazabicyclo-[6.3.0]undec-9-ene-N9)palladium-chloroform(1/2) Francesca Porta, Maddalena Pizzotti, Gerolamo La Monica, Luis A. Finessi, Sergio Cenini, Pier L. Bellon and Francesco Demartin, pp 2409 DOI:10.1039/DT9840002409

The synthesis of some bi- and tri-metallic clusters containing rhodium; X-ray crystal structures of [MoRh3(µ3-CO)3(CO)3(PPh3)3(-C5H5)]·CH2Cl2 and [MoRhPt(µ-CO)2(µ-PPh2)(µ-1-:1-2--C6H5)-(PPh3)2(-C5H5)] Louis J. Farrugia, Anthony D. Miles and F. Gordon A. Stone, pp 2415 DOI:10.1039/DT9840002415

Preparation of 6,6-diarylfulvene complexes of rhodium(I) and their reaction with dioxygen John Jeffery, E. Jane Probitts and Roger J. Mawby, pp 2423 DOI:10.1039/DT9840002423

Nitrogen-15 nuclear magnetic resonance spectroscopy of dinitrogen-bridged complexes Susan Donovan-Mtunzi, Raymond L. Richards and Joan Mason, pp 2429 DOI:10.1039/DT9840002429

A mass spectrometric investigation of the exchange of deuterium with tetraborane(10) in the gas phase Robert Greatrex, Norman N. Greenwood and Christopher D. Potter, pp 2435 DOI:10.1039/DT9840002435

Studies on metal carbonate equilibria. Part 10. A solubility study of the complex formation in the uranium(VI)-water-carbon dioxide (g) system at 25 °C Ingmar Grenthe, Diego Ferri, Francesco Salvatore and Guiseppe Riccio, pp 2439 DOI:10.1039/DT9840002439

Synthesis and properties of chromium(V) trifluoride oxide CrOF3 and related oxo-anions Eric G. Hope, Peter J. Jones, William Levason, J. Steven Ogden, Mahmoud Tajik and Jeremy W. Turff, pp 2445 DOI:10.1039/DT9840002445

The complex chemistry of scandium. Part 1. Preparation and properties of some scandium(III) complexes of polyamines. X-Ray crystal structures of tri(nitrato-OO)(2,2 : 6,2-terpyridyl-NNN)scandium(III) and [1,2-bis(pyridine--carbaldimino)ethane-NNNN]-di-µ-hydroxo-di(nitrato-OO)discandium(III) dinitrate bis(acetonitrile) Ata M. Arif, F. Alan Hart, Michael B. Hursthouse, Mark Thornton-Pett and Wenxiang Zhu, pp 2449 DOI:10.1039/DT9840002449

Reactions of co-ordinated ligands. Part 31. The synthesis, structure, and protonation of the octamethyloctatrienediylidenedimolybdenum complex [Mo2(µ-C8Me8)(-C5H5)2], evidence for three-centre carbon-hydrogen-molybdenum interactions Michael Green, Nicholas C. Norman, A. Guy Orpen and Colin J. Schaverien, pp 2455 DOI:10.1039/DT9840002455

Preparation and physico-chemical properties of the ternary complexes formed between adenosine 5-triphosphoric acid, bis(2-pyridyl)amine, and divalent metal ions. Crystal and molecular structures of the compounds containing MgII and CaII Renzo Cini, Maria C. Burla, Antonio Nunzi, Gian P. Polidori and Pier F. Zanazzi, pp 2467 DOI:10.1039/DT9840002467

Iridanonaborane chemistry. Some reactions of arachno-4-irida-nonaboranes: nuclear magnetic resonance investigations and the molecular structure of the nido nine-vertex species [2,2,2-(CO)(PMe3)2-nido-2-IrB8H11] Jonathan Bould, Norman N. Greenwood and John D. Kennedy, pp 2477 DOI:10.1039/DT9840002477

The reactions of arachno-decaboranyl complexes L2B10H12(L = two-electron donor ligand) with some platinum(II) compounds; nuclear magnetic resonance studies and the crystal and molecular structure of [8-Cl-7,7-(PMe2Ph)2-nido-7-PtB10H11] Janet E. Crook, Norman N. Greenwood, John D. Kennedy and Walter S. McDonald, pp 2487 DOI:10.1039/DT9840002487

Hydrido-bridged bimetallic complexes involving gold or silver and chromium, molybdenum, or tungsten: X-ray crystal structure of [AuCr(µ-H)(CO)5(PPh3)] Michael Green, A. Guy Orpen, Ian D. Salter and F. Gordon A. Stone, pp 2497 DOI:10.1039/DT9840002497

Synthesis and characterization of technetium(V) oxo-complexes with quadridentate Schiff-base ligands: X-ray structures of µ-oxo-bis-{oxo[N,N-propane-1,3-diylbis(salicylideneiminato)]technetium(V)} and chloro-oxo[N,N-propane-1,3-diylbis(salicylideneiminato)]-technetium(V) Giuliano Bandoli, Marino Nicolini, Ulderico Mazzi and Fiorenzo Refosco, pp 2505 DOI:10.1039/DT9840002505

Kinetics and mechanism of the oxidative addition of cyanogen to [Ni(CO)2(PPh3)2] Marino Basato, Benedetto Corain, Giancarlo Favero and Pietro Rosano, pp 2513 DOI:10.1039/DT9840002513

Regiospecific hydride abstraction from metallacycles: conversion of metallacyclopentanes to cationic -allylic complexes Paolo Barabotti, Pietro Diversi, Giovanni Ingrosso, Antonio Lucherini and Franca Nuti, pp 2517 DOI:10.1039/DT9840002517

Preparation, reactions, and nuclear magnetic resonance spectra of disubstituted derivatives of the octahydrotriborate(1-) ion, [B3H6XX]-(X = Cl, X= Cl, NCS, NCBH3, or NCBH2Cl); molecular structure of [B3H6Cl2]- and partial structure of [B3H6Cl(NCS)]- Marisa Arunchaiya, John H. Morris, Steven J. Andrews, Dorothy A. Welch and Alan J. Welch, pp 2525 DOI:10.1039/DT9840002525

Reactions of octacarbonyldicobalt with tetraphenyl derivatives of Group 5A, including tetraphenyldibismuthane. Synthesis and crystal and molecular structure of tricarbonyl(diphenylbismuthido)(triphenylphosphine)cobalt(I), [Co(BiPh2)(CO)3(PPh3)] Fausto Calderazzo, Rinaldo Poli and Giancarlo Pelizzi, pp 2535 DOI:10.1039/DT9840002535

The preparation and crystal structure of the 1 : 2 adduct of phosphorus trifluoride oxide and antimony pentafluoride Anthony J. Edwards and Khalaf I. Khallow, pp 2541 DOI:10.1039/DT9840002541

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 31. Synthesis and crystal structures of the compounds [AuW(µ-CHR)(CO)2(PPh3)(-C5H5)]·CH2Cl2 and [AuPtW(µ3-CR)(CO)2(PMe3)3(-C5H5)][PF6](R = C6H4Me-4) Gabino A. Carriedo, Judith A. K. Howard, F. Gordon A. Stone and Michael J. Went, pp 2545 DOI:10.1039/DT9840002545

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 32. Reactions of the rhodium-tungsten complex [RhW(µ-CC6H4Me-4)(CO)3(-C5H5)(-C9H7)] with alkynes; X-ray crystal structure of [RhW{µ-C(C6H4Me-4)C(Ph)C(Ph)}(CO)2(-C5H5)(-C9H7)] Michael Green, Judith A. K. Howard, Simon J. Porter, F. Gordon A. Stone and David C. Tyler, pp 2553 DOI:10.1039/DT9840002553

Synthesis, crystal structure and some reactions of trans-[Ir(CO)Cl2(PEt3)2(PCl2)] E. A. V. Ebsworth, Robert O. Gould, Neil T. McManus, Nicholas J. Pilkington and David W. H. Rankin, pp 2561 DOI:10.1039/DT9840002561

Reactions between carbonylhydridotris(triphenylphosphine)iridium(I) and difluorophosphine oxide, sulphide, and selenide: identification of ionic intermediates E. A. V. Ebsworth, Philip G. Page and David W. H. Rankin, pp 2569 DOI:10.1039/DT9840002569

Notes. Some rhodium(III)-dihalogenophosphine complexes E. A. V. Ebsworth, Neil T. McManus and David W. H. Rankin, pp 2573 DOI:10.1039/DT9840002573

The role of titanium and iron complexes in the deoxygenation of aromatic nitroso-compounds Giovanni Fochi and Carlo Floriani, pp 2577 DOI:10.1039/DT9840002577

Preparation and X-ray crystal structure of the complex µ-chloro-bis[bis(imidazole)copper(I)] chloride William Clegg, Stephen R. Acott and C. David Garner, pp 2581 DOI:10.1039/DT9840002581

Synthesis and crystal structure of [{W(SEt)O(PMe2Ph)}2(µ-S)(µ-SEt)2] David C. Povey and Raymond L. Richards, pp 2585 DOI:10.1039/DT9840002585

Additions and corrections Torsten Behling, Gregory S. Girolami, Geoffrey Wilkinson, Richard E. Somerville and Michael B. Hursthouse, pp 2589 DOI:10.1039/DT9840002589

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400BX039

Issue 12

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FX041

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400FP041

Conformational changes of nickel(II) diamine complexes in the solid state Goutam De Biswas, Prasanta K. Biswas and Nirmalendu Ray Chaudhuri, pp 2591 DOI:10.1039/DT9840002591

Kinetics and mechanism of oxidation of 2,4-dinitrophenylhydrazine, p-nitrophenylhydrazine, and p-tolylhydrazine with potassium hexacyanoferrate(III) in acidic perchlorate media Ashok K. Gupta, Bharati Gupta, Abhay K. Gupta and Yugul K. Gupta, pp 2599 DOI:10.1039/DT9840002599

Polyhydrated phases in the exchange of H+ and K+ in -titanium phosphate J. R. García, Marta Suárez, Ricardo Llavona and Julio Rodríguez, pp 2605 DOI:10.1039/DT9840002605

Vibrational spectroscopic studies of trivalent hexa-aqua-cations: single-crystal Raman spectra between 275 and 1 200 cm-1 of the caesium alums of titanium, vanadium, chromium, iron, gallium, and indium Stephen P. Best, James K. Beattie and Robert S. Armstrong, pp 2611 DOI:10.1039/DT9840002611

Properties and structural characterization of copper(II) mixed complexes with 2,2:6,2-terpyridyl and iminodiacetate or pyridine-2,6-dicarboxylate Nevenka Bresciani-Pahor, Giorgio Nardin, Raffaele P. Bonomo and Enrico Rizzarelli, pp 2625 DOI:10.1039/DT9840002625

Estimated distribution between one- and two-equivalent reaction paths in vanadium(V)-induced electron transfer Ponnusamy Kalidoss and Vangalur S. Srinivasan, pp 2631 DOI:10.1039/DT9840002631

Reactions of acetylenes with noble-metal carbonyl halides. Part 7. Synthesis and chemical characterization of cationic and neutral tetrasubstituted cyclobutadiene complexes of platinum(II). X-Ray structure of dichloro(4-1,2-dimethyl-3,4-diphenylcyclobutadiene)-(triphenylphosphine)platinum(II) (The late) Franco Canziani, Claudio Allevi, Luigi Garlaschelli, Maria Carlotta Malatesta, Alberto Albinati and Fabio Ganazzoli, pp 2637 DOI:10.1039/DT9840002637

Chemistry of platinum sulphido-complexes. Part 4. Dimeric µ-alkyl-sulphido-complexes: crystal and molecular structures of [Pt2(µ-S)-(µ-SMe)(PPh3)4]PF6·MeOH and cis-[Pt2(µ-SMe)2(NO2)2(PPh3)2] Clive E. Briant, Christopher J. Gardner, T. S. Andy Hor, Nigel D. Howells and D. Michael P. Mingos, pp 2645 DOI:10.1039/DT9840002645

Kinetics and mechanism of the oxidation of phosphite with chloramine T catalyzed by osmium(VIII) in alkaline solutions Latika Bhatt, Prem D. Sharma and Yugul K. Gupta, pp 2653 DOI:10.1039/DT9840002653

Enthalpies of formation of complexes [M(-C5H5)2(SR)2](M = Mo, W, or Ti; R = C3H7, C4H9, or C6H5); metal-sulphur bond enthalpies Maria J. Calhorda, Alberto R. Dias, José A. Martinho Simões and Clementina Teixeira, pp 2659 DOI:10.1039/DT9840002659

Rhodium(I) and iridium(I) carbonyl complexes with sulphur-donor ligands; X-ray crystal structure of [Rh(CO)2(ButSCHCHSBut)]ClO4 A. Ruiz, C. Claver, J. C. Rodriguez, M. Aguiló, X. Solans and M. Font-Altaba, pp 2665 DOI:10.1039/DT9840002665

Polymeric thiolate complexes in solution. Stability constants of the cadmium(II) complexes of 4-mercapto-1-methylpiperidine Joan Caries Bayón, Pilar González-Duarte and Josep Vives, pp 2671 DOI:10.1039/DT9840002671

Vanadium(II) porphyrins: synthesis and physicochemical properties. Crystal structures of bis(dimethylphenylphosphine)- and bis(tetrahydrofuran)-(2,3,7,8,12,13,17,18-octaethylporphyrinato)-vanadium(II) H. Oumous, C. Lecomte, J. Protas, J. L. Poncet, J. M. Barbe and R. Guilard, pp 2677 DOI:10.1039/DT9840002677

He(I) and He(II) photoelectron spectra of some organozinc and organoaluminium radicals containing 1,2-bis(t-butylimino)ethane Jaap N. Louwen, Derk J. Stufkens and Ad Oskam, pp 2683 DOI:10.1039/DT9840002683

Stereoselectivity in the substitution reaction of square-planar platinum(II) complexes determined in situ by nuclear magnetic resonance spectroscopy using a chiral solvent Sumio Shinoda, Tadashi Nishikimi, Sho-ichi Uchino, Yasuyuki Koie and Yasukazu Saito, pp 2689 DOI:10.1039/DT9840002689

Trioxorhenium(VII) alkoxides, di-isopropylamides, carboxylates and related compounds Peter Edwards and Geoffrey Wilkinson, pp 2695 DOI:10.1039/DT9840002695

Reduction-oxidation properties of organotransition-metal complexes. Part 18. The stabilisation of paramagnetic cyclopentadienylrhodium compounds via o-quinone complexation : X-ray crystal structure of [Rh(PPh3){o-C(O)OC6Cl4O}(-C5H5)]·0.25CH2Cl2 Neil G. Connelly, Mark J. Freeman, Ian Manners and A. Guy Orpen, pp 2703 DOI:10.1039/DT9840002703

Reduction-oxidation properties of organotransition-metal complexes. Part 19. Carbonylruthenium catecholate and semiquinone complexes Neil G. Connelly, Ian Manners, John R. C. Protheroe and Mark W. Whiteley, pp 2713 DOI:10.1039/DT9840002713

Reactions of boron compounds with difluorophosphoric acid; characterisation of the tetrakis(difluorophosphato)borate anion by multinuclear (11B, 19F, and 31P) nuclear magnetic resonance spectroscopy Michael F. A. Dove, Richard C. Hibbert and Norman Logan, pp 2719 DOI:10.1039/DT9840002719

The [Os3(µ-H)(CO)10(MeCN)2]+ cation: synthesis and X-ray crystal structure of [Os3(µ-H)(CO)10(MeCN)2][Os(CO)3Cl3] Christopher E. Anson, Evert J. Ditzel, Mariano Fajardo, H. Diane Holden, Brian F. G. Johnson, Jack Lewis, José Puga and Paul R. Raithby, pp 2723 DOI:10.1039/DT9840002723

Nitrogen-15 nuclear magnetic resonance spectroscopy and electronic effects in dinitrogen complexes of molybdenum and tungsten with trans nitrile and diphosphine ligands Susan Donovan-Mtunzi, Raymond L. Richards and Joan Mason, pp 2729 DOI:10.1039/DT9840002729

Iron complexes of N-substituted thiosalicylideneimines. Part 3. Structure, magnetism, and Mössbauer spectra of the complex chloro[N,N-ethylenebis(thiosalicylideneiminato)]iron(III), an intermediate-spin complex which exists in three crystalline forms Gary D. Fallon, Bryan M. Gatehouse, Peter J. Marini, Keith S. Murray and Bruce O. West, pp 2733 DOI:10.1039/DT9840002733

Compartmental ligands. Part 10. Syntheses and crystal and molecular structures of the copper(II) complexes of Schiff bases derived from 1-(pyrrol-2-yl)butane-1,3-dione and 1,3-bis-(2-aminophenoxy)propane, and from pyrrole-2-carbaldehyde and 3,6-dioxaoctane-1,8-diamine Neil A. Bailey, Ann Barrass, David E. Fenton, Martha S. Leal Gonzalez, Richard Moody and Cecilia O. Rodriguez de Barbarin, pp 2741 DOI:10.1039/DT9840002741

Reactions of co-ordinated ligands. Part 32. The reaction of sulphur nucleophiles with cationic molybdenum alkyne complexes: alkyne rotation and the molecular structures of the complexes [Mo(SC6H4NO2-p){P(OMe)3}(2-MeC2Me)(-C5H5)] and [Mo(SC6H4SPh-o)(CO)(2-MeC2Me)(-C5H5)] Stephen R. Allen, Timothy H. Glauert, Michael Green, Kevin A. Mead, Nicholas C. Norman, A. Guy Orpen, Colin J. Schaverien and Peter Woodward, pp 2747 DOI:10.1039/DT9840002747

The analogy between alkenes and the dinuclear species [MRh(µ-CO)2(-C5Me5)2](M = Co or Rh); dynamic nuclear magnetic resonance, X-ray crystallographic, and extended-Hückel molecular-orbital studies of the bonding between unsaturated CoRh and Rh2 fragments and the pentacarbonylmolybdenum group Robert D. Barr, Michael Green, Judith A. K. Howard, Todd B. Marder, A. Guy Orpen and F. Gordon A. Stone, pp 2757 DOI:10.1039/DT9840002757

Study of heteropolyanions by solid-state nuclear magnetic resonance spectroscopy John B. Black, Nigel J. Clayden, Lee Griffiths and John D. Scott, pp 2765 DOI:10.1039/DT9840002765

Kinetic studies on 1:1 electron-transfer reactions involving blue copper proteins. Part 9. Effects of chromium(III) modification on reactions of plastocyanin with [Co(phen)3]3+(phen = 1,10-phenanthroline), [Fe(CN)6]3-, [Co(dipic)2]-(dipic = dipicolinate)(oxidants) and [Ru(NH3)5(py)]2+(py = pyridine)(reductant) Stephen K. Chapman, C. Victor Knox, P. Kathirgamanathan and A. Geoffrey Sykes, pp 2769 DOI:10.1039/DT9840002769

Kinetic studies on 1:1 electron-transfer reactions involving blue copper proteins. Part 10. The assignment of binding sites in the reactions of plastocyanin (and azurin) with non-physiological protein redox partners Stephen K. Chapman, C. Victor Knox and A. Geoffrey Sykes, pp 2775 DOI:10.1039/DT9840002775

Dinuclear complexes of transition metals containing carbonate ligands. Part 3. Kinetics and mechanism of bridge cleavage in the di-µ-hydroxo-bis[bis(ethylenediamine)cobalt(III)] ion in weakly basic aqueous solution containing carbonate ions Kanayathu Koshy and Tara P. Dasgupta, pp 2781 DOI:10.1039/DT9840002781

The interaction of aliphatic amines with transition-metal complexes of aromatic di-imines. Part 2. Concurrent nucleophilic attack at the central metal and co-ordinated ligand in the reaction between ethylenediamine and dichloro(5-nitro-1,10-phenanthroline)palladium(II) in dimethylformamide Antonino Bartolotta, Matteo Cusumano, Antonino Giannetto and Vittorio Ricevuto, pp 2785 DOI:10.1039/DT9840002785

1,2-Bis(dimethylphosphino)ethane (dmpe) alkyl compounds of zirconium(IV) and hafnium(IV). Crystal structures of ZrMe4(dmpe)2 and Zr(CH2PH)4(dmpe) Gregory S. Girolami, Geoffrey Wilkinson, Mark Thornton-Pett and Michael B. Hursthouse, pp 2789 DOI:10.1039/DT9840002789

Arene-molybdenum chemistry: olefin and hydride derivatives Massimo Canestrari, Malcolm L. H. Green and Alejandro Izquierdo, pp 2795 DOI:10.1039/DT9840002795

Diastereoisomeric organophosphorus compounds. Part 4. Proton and phosphorus-31 nuclear magnetic resonance spectra of compounds of the type [RRP(X)]2Y and RRP(X)-Y-(Z)PRR(R = CH3, R= t-C4H9) G. Hägele, G. Tossing, W. Kückelhaus, J. Seega and R. K. Harris, pp 2803 DOI:10.1039/DT9840002803

Heavy-metal macrocyclic complexes: crystal and molecular structures of complexes of 1,5,9,13-tetra-azacyclohexadecane with Cd(NO3)2, HgCl2, PbCl2, and Pb(NO3)2 Nathaniel W. Alcock, Eirian H. Curzon and Peter Moore, pp 2813 DOI:10.1039/DT9840002813

Ligand properties of the -OSeF5 and -OTeF5 groups in pseudo-trigonal-bipyramidal molecules Reinhard Damerius, Peter Huppmann, Dieter Lentz and Konrad Seppelt, pp 2821 DOI:10.1039/DT9840002821

Fluorination of dimethyl sulphide. Formation of the fluorodimethylsulphonium cation, [Me2SF]+, and dimethylsulphur difluoride, Me2SF2 Alan M. Forster and Anthony J. Downs, pp 2827 DOI:10.1039/DT9840002827

Notes. Nitrogen tracer studies on the decomposition of hydroxylamine in nitric acid Michael S. Garley, Kieran G. Phelan and Geoffrey Stedman, pp 2835 DOI:10.1039/DT9840002835

Synthesis of phenoxo-bridged dicopper(II) complexes of N-(2-aminoalkyl)salicylaldimines and their use in the formation of monohalogeno-complexes and non-symmetrical quadridentate Schiff-base complexes Sanat Kumar Mandal and Kamalaksha Nag, pp 2839 DOI:10.1039/DT9840002839

Organophosphazenes. Part 17. The synthesis of trimethylsilylacetylene and terminal acetylene derivatives of hexafluorocyclotriphosphazene Christopher W. Allen, James L. Desorcie and Kolikkara Ramachandran, pp 2843 DOI:10.1039/DT9840002843

Complexation of the lanthanides by cryptand 2.2.2 in propylene carbonate: an electrochemical determination of the thermodynamic parameters Gérard Gillain, Pierre Barthélemy, Jean Massaux and Jean F. Desreux, pp 2847 DOI:10.1039/DT9840002847

Crystal structure and catalytic properties of a platinum-iridium mixed cluster, [Pt2Ir2(µ-CO)3(CO)4(PPh3)3] Sumit Bhaduri, Krishna R. Sharma, William Clegg, George M. Sheldrick and Dietmar Stalke, pp 2851 DOI:10.1039/DT9840002851

Preparation and crystal structures of two phosphorus-sulphur rings: (RPS)4 and (RPS2)2(R = C6H2Me3-2,4,6) Cornelia Lensch and George M. Sheldrick, pp 2855 DOI:10.1039/DT9840002855

Preparation and properties of cyano(triphenylphosphoniomethanide)-gold(I) and its oxidative-addition products with halogens Graham A. Bowmaker and Hubert Schmidbaur, pp 2859 DOI:10.1039/DT9840002859

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98400BX043