1985 year
Main Index

Issue 1

Co-ordinative interactions in chelated complexes of silicon. Part 5. Chirality of five-co-ordinate silicon compounds: crystal and molecular structures of 1-(chlorodimethylsilyl)- and 1-(dichloromethylsilyl)-1,2,3,4-tetrahydro-1,10-phenanthroline Gerhard Klebe, Jan W. Bats and Karl Hensen, pp 1 DOI:10.1039/DT9850000001

Co-ordinative interactions in chelated complexes of silicon. Part 7. Dynamic nuclear magnetic resonance studies of fluorine exchange at five-co-ordinated silicon Gerhard Klebe and Karl Hensen, pp 5 DOI:10.1039/DT9850000005

Preparation and characterisation of adducts of bismuth pentafluoride and antimony pentafluoride by vibrational spectroscopy, X-ray powder diffraction, and single-crystal X-ray crystallography Grace S. H. Chen, Jack Passmore, Peter Taylor, Tom K. Whidden and Peter S. White, pp 9 DOI:10.1039/DT9850000009

Enantioselectivity of nickel(II) and copper(II) complexes of Schiff bases derived from amino acids and (S)-o-[(N-benzylprolyl)amino]-acetophenone or (S)-o-[(N-benzylprolyl)amino]benzaldehyde. Crystal and molecular structures of [Ni{(S)-bap-(S)-Val}] and [Cu{(S)-bap-(S)-Val}] Yuri N. Belokon, Victor I. Maleyev, Sergei V. Vitt, Mikhail G. Ryzhov, Yuri D. Kondrashov, Sergei N. Golubev, Yuri P. Vauchskii, Anna I. Kazika, Marina I. Novikova, Pavel A. Krasutskii, Aleksandr G. Yurchenko, Inna L. Dubchak, Valeri E. Shklover, Yuri T. Struchkov, Vladimir I. Bakhmutov and Vasili M. Belikov, pp 17 DOI:10.1039/DT9850000017

The kinetics of the displacement, by chloride, of heterocyclic nitrogen bases (am) from trans-[PtL(am)Cl2](L = C2H4, CO, or PMe3); the effect of steric hindrance in the leaving group on the trans effect of L Luciano Canovese, Martin L. Tobe and Lucio Cattalini, pp 27 DOI:10.1039/DT9850000027

The peroxodisulphate-iodide reaction. Reactivity and ionic association and solvation in isodielectric water-solvent mixtures M. Carmen Carmona Guzmán, Julian Rodriguez Velasco, Francisco Sánchez Burgos and Jose Hidalgo Toledo, pp 31 DOI:10.1039/DT9850000031

New carbide clusters in the cobalt subgroup. Part 13. Synthesis and chemical characterization of the anions [Co6C(CO)14]-, [Co6C(CO)15]2-, and [Co8C(CO)18]2-, and crystal structure of µ6-carbido-ennea-µ-carbonyl-hexacarbonyl-polyhedro-hexacobaltate(2-) as its benzyltrimethylammonium salt; a comparison with isostructural species Secondo Martinengo, Donatella Strumolo, (the late) Paolo Chini, Vincenzo G. Albano and Dario Braga, pp 35 DOI:10.1039/DT9850000035

Application of photoelectron spectroscopy to molecular properties. Part 19. Electronic structure of tris(-di-imino) complexes of ruthenium(0) Claude Guimon, Geneviève Pfister-Guillouzo, Bruno Chaudret and René Poilblanc, pp 43 DOI:10.1039/DT9850000043

Subvalent group 4B metal alkyls and amides. Part 7. Transition-metal chemistry of metal(II) bis(trimethylsilyl)amides M(NR2)2(R = SiMe3; M= Ge, Sn, or Pb) Michael F. Lappert and Philip P. Power, pp 51 DOI:10.1039/DT9850000051

Binuclear metal complexes. Part 55. Dimanganese(II) and mixed-valence manganese(II,III) complexes of strati-bis Schiff bases with two salen-like donating sites Hisashi kawa, Atsunori Honda, Masaaki Nakamura and Sigeo Kida, pp 59 DOI:10.1039/DT9850000059

Rate parameters for oxygen and carbon monoxide binding to a liposome-embedded heme under physiological conditions Eishun Tsuchida, Makoto Yuasa and Hiroyuki Nishide, pp 65 DOI:10.1039/DT9850000065

Toluene-3,4-dithiol (H2tdt) complexes of group 5B halides. Observations of lone-pair stereochemical activity and redox behaviour. Crystal and molecular structures of [AsCl(tdt)] and [PPh4][Sb(tdt)3] Jonathan M. Kisenyi, Gerald R. Willey, Michael G. B. Drew and Shem O. Wandiga, pp 69 DOI:10.1039/DT9850000069

Electron spin resonance spectra of manganese(II) ions in the double-stranded chain polymers CdLX2(L = pyridine or methylpyridine; X = Cl or Br) Margaret Goodgame and J. Nigel Okey, pp 75 DOI:10.1039/DT9850000075

Coloured species formed from the titanium(IV)-4-(2-pyridylazo)resorcinol reagent in the spectrophotometric determination of trace amounts of hydrogen peroxide Chiyo Matsubara, Takeo Iwamoto, Yuji Nishikawa, Kiyoko Takamura, Shigenobu Yano and Sadao Yoshikawa, pp 81 DOI:10.1039/DT9850000081

Metallation of 2-ethenylpyridine at triosmium clusters: X-ray crystal structures of the open trinuclear clusters [Os3H(CO)9L(NC5H4CHCH)](L = CO or PMe2Ph) Kevin Burgess, H. Diane Holden, Brian F. G. Johnson, Jack Lewis, Michael B. Hursthouse, Nigel P. C. Walker, Antony J. Deeming, Peter J. Manning and Roy Peters, pp 85 DOI:10.1039/DT9850000085

Reaction of bis-µ-diethylphosphido-bis(tetracarbonylmetal)(M-M)(M = Cr or W) with tri-n-butylphosphine : kinetics and mechanism of a reaction involving seven-co-ordinate complexes Marino Basato, pp 91 DOI:10.1039/DT9850000091

Reactions in mixed non-aqueous systems containing sulphur dioxide. Part 6. The reaction of metal oxides with dimethyl sulphoxide-sulphur dioxide Brian Jeffreys, J. Bernard Gill and David C. Goodall, pp 99 DOI:10.1039/DT9850000099

Synthesis and characterization of copper(II) complexes with unsymmetrical quadridentate Schiff bases derived from -diketone, diamine, and o-hydroxybenzaldehyde ligands Naohide Matsumoto, Miaki Asakawa, Hidenori Nogami, Masahiro Higuchi and Akira Ohyoshi, pp 101 DOI:10.1039/DT9850000101

Synthesis and characterization of a new family of binuclear copper(II) complexes with a flexible bridge and the - type charge-transfer interaction with 1,3,5-trinitrobenzene Naohide Matsumoto, Miaki Asakawa and Akira Ohyoshi, pp 107 DOI:10.1039/DT9850000107

Lewis-base adducts of group 1B metal(I) compounds. Part 11. Synthesis and crystal structure of adducts of silver(I) bromide with monomethyl-substituted pyridine bases Peter C. Healy, Nancy K. Mills and Allan H. White, pp 111 DOI:10.1039/DT9850000111

Lewis-base adducts of group 1B metal(I) compounds. Part 12. Structural studies of some bis(methyl-substituted pyridine)-copper(I) and -silver(I) nitrates and perchlorates Lutz M. Engelhardt, Chaveng Pakawatchai, Allan H. White and Peter C. Healy, pp 117 DOI:10.1039/DT9850000117

Lewis-base adducts of group 1B metal(I) compounds. Part 13. Crystal structure determinations of tetrakis(triphenylphosphine)-copper(I) and -silver(I) perchlorates, bis(pyridine)bis(triphenyl-phosphine)copper(I) perchlorate, (2,2-bipyridyl)bis(triphenyl-phosphine)copper(I) perchlorate, and tetrahydroboratobis-(triphenylphosphine)copper(I)-pyridine (1/0.5) Lutz M. Engelhardt, Chaveng Pakawatchai, Allan H. White and Peter C. Healy, pp 125 DOI:10.1039/DT9850000125

The co-ordination chemistry of manganese. Part 14. Synthesis of manganese(II) complexes of tertiary phosphine ligands containing 2-cyanoethyl groups David S. Barratt, Afshin Hosseiny, Charles A. McAuliffe and Catherine Stacey, pp 135 DOI:10.1039/DT9850000135

The crystal structure and electronic properties of the complexes acetatobis(1,10-phenanthroline)copper(II) perchlorate dihydrate, acetatobis(1,10-phenanthroline)copper(II) nitrate dihydrate, and acetatobis(1,10-phenanthroline)zinc(II) tetrafluoroborate dihydrate William Fitzgerald, Brian Hathaway and Charles J. Simmons, pp 141 DOI:10.1039/DT9850000141

Sulphur ligand-metal complexes. Part 16. Copper complexes of thioethers and the single-crystal X-ray structure of the polymeric mixed-valence complex, penta-µ-chloro-tris-µ-tetrahydrothiophene-tetracopper(I,II) Eric W. Ainscough, Andrew M. Brodie, June M. Husbands, Graeme J. Gainsford, Eric J. Gabe and Neil F. Curtis, pp 151 DOI:10.1039/DT9850000151

Stabilisation of copper(I) by an azoimine ligand: redox properties and reactions of bis(phenylazoacetaldoximato)bis(phenylacetaldoxime)dicopper(I) Samudranil Pal, Debkumar Bandyopadhyay, Dipankar Datta and Animesh Chakravorty, pp 159 DOI:10.1039/DT9850000159

Insertion of carbon dioxide, of Co2-like molecules, and of other unsaturated compounds into the platinum-nitrogen bond of [Pt(PPh3)2(PhNO)] Sergio Cenini, Francesca Porta, Maddalena Pizzotti and Corrado Crotti, pp 163 DOI:10.1039/DT9850000163

Tin-119 Mössbauer and nuclear magnetic resonance studies of organotin compounds. Part 1. Sterically crowded tetraorganotin derivatives Christopher S. Frampton, Roger M. G. Roberts, Jack Silver, Joanne F. Warmsley and Bahrum Yavari, pp 169 DOI:10.1039/DT9850000169

Chemistry of the unsaturated cluster compound [Os3Pt(µ-H)2(CO)10{P(cyclo-C6H11)3}]; X-ray crystal structures of [Os3Pt(µ-H)2(CO)11{P(cyclo-C6H11)3}], [Os3Pt(µ-H)4(CO)10{P(cyclo-C6H11)3}], and [Os3Pt(µ-H)2(µ-CH2)(CO)10-{P(cyclo-C6H11)3}](two isomers) Louis J. Farrugia, Michael Green, David R. Hankey, Martin Murray, A. Guy Orpen and F. Gordon A. Stone, pp 177 DOI:10.1039/DT9850000177

Determination of the molecular structures and conformations of methylbis(methylsilyl)amine and bis(dimethylsilyl)methylamine in the gas phase by electron diffraction Grete Gundersen, David W. H. Rankin and Heather E. Robertson, pp 191 DOI:10.1039/DT9850000191

Co-ordination chemistry of higher oxidation states. Part 13. Synthesis and properties of alkali-metal hydroxo-oxo-osmate(VIII) compounds and the molecular structure of Cs[O4Os(µ-OH)OsO4] Hilary C. Jewiss, William Levason, Mahmoud Tajik, Michael Webster and Nigel P. C. Walker, pp 199 DOI:10.1039/DT9850000199

Note. Synthesis and properties of dioxo-osmium(VI) compounds of thio- and seleno-ethers Stephen K. Harbron and William Levason, pp 205 DOI:10.1039/DT9850000205

Note. Reactions of sulphoxide-thioether bidentate ligands with platinum(II). Determination of the mode of binding by cyclic voltammetry Julian A. Davies, Cynthia S. Hasselkus, Christiane N. Scimar, Anup Sood and Venkataraman Uma, pp 209 DOI:10.1039/DT9850000209

Note. Intercalation of alkylamines into tin(IV) bis(hydrogenphosphate) monohydrate Enrique Rodríguez-Castellón, Sebastián Bruque and Aurora Rodríguez-García, pp 213 DOI:10.1039/DT9850000213

Note. The template synthesis and crystal and molecular structure of a seven-co-ordinate manganese(II) complex with 2,6-diacetylpyridine mono(2-aminobenzoylhydrazone) Corrado Pelizzi, Giancarlo Pelizzi and Pieralberto Tarasconi, pp 215 DOI:10.1039/DT9850000215

Note. Preparation of 11-(2-dimethylaminoethyl)-1,4,7-trimethyl-1,4,7,11-tetra-azacyclotetradecane, and characterisation of its nickel(II), copper(II), and zinc(II) complexes Nathaniel W. Alcock, Hadi A. A. Omar, Peter Moore and Colin Pierpoint, pp 219 DOI:10.1039/DT9850000219

Note. Synthesis, solution structure, and halide addition compounds of bis(dicyclohexylphosphinothioito)mercury(II) Paul Peringer and Nikolaus Baumann, pp 223 DOI:10.1039/DT9850000223

Note. Two-dimensional nuclear magnetic resonance for the analysis of the carbon-13 spectra of carbonyl groups in metallocarbonyls Geoffrey E. Hawkes, Lu Yun Lian, Edward W. Randall, Keith D. Sales and S. Aime, pp 225 DOI:10.1039/DT9850000225

Additions and corrections Michael J. Doyle, Michael F. Lappert, Peter L. Pye and Pilar Terreros, pp 229 DOI:10.1039/DT9850000229

Issue 2

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FX001

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FP001

Crystal structures and rotameric forms of some diarylsulphonyl-mono-, -di-, and -tri-selanes and their sulphur analogues Olav Foss, Frode Kvammen and Kjartan Marøy, pp 231 DOI:10.1039/DT9850000231

Influence of secondary ligands on the stability of metal-xanthosine complexes in solution P. Rabindra Reddy and M. Harilatha Reddy, pp 239 DOI:10.1039/DT9850000239

Metal-phenoxyalkanoic acid interactions. Part 13. Copper(II)-(2-chlorophenoxy)ethanoic acid complexes. Crystal and molecular structures of catena-tetra-µ-[(2-chlorophenoxy)ethanoato-O,O]-dicopper(II), catena-(2-aminopyrimidine-N,N)-tetra-µ-[(2-chlorophenoxy)ethanoato-O,O]-dicopper(II), and 1,2,2,2,2-penta-aqua-tetra-µ-[(2-chlorophenoxy)-ethanoato-O,O]-copper(II)calcium(II) Graham Smith, Eric J. O'Reilly, Colin H. L. Kennard and Allan H. White, pp 243 DOI:10.1039/DT9850000243

Optically active co-ordination compounds. Part 43. Polysulphide complexes of platinum(IV) Robert D. Gillard, Franz L. Wimmer and John P. G. Richards, pp 253 DOI:10.1039/DT9850000253

Chemistry of metallacyclobutanones. Part 2. Synthesis and ring inversion of some highly puckered metallacyclobutan-3-one (slipped oxodimethylenemethane) complexes of palladium; crystal structures of 2,4-bis(methoxycarbonyl)-1,1-bis(triphenylphosphine)palladacyclobutan-3-one, 2,4-bis(methoxycarbonyl)-1,1-bis(triphenylarsine)palladacyclobutan-3-one, and 1,1-(2,2-bipyridyl)-2,4-bis(methoxycarbonyl)palladacyclobutan-3-one Raymond D. W. Kemmitt, Peter McKenna, David R. Russell and Lesley J. S. Sherry, pp 259 DOI:10.1039/DT9850000259

Partially oxidized Group 3B fluorometallophthalocyanines Patrick Brant, David C. Weber, Steven G. Haupt, Ronald S. Nohr and Kenneth J. Wynne, pp 269 DOI:10.1039/DT9850000269

Phosphocholine-substituted 5,10,15,20-tetraphenylporphyrinatoiron(II): oxygen carrier under physiological conditions Eishun Tsuchida, Hiroyuki Nishide, Makoto Yuasa, Etsuo Hasegawa, Yoh-ichi Matsushita and Kiyoshi Eshima, pp 275 DOI:10.1039/DT9850000275

Bimetallic systems. Part 7. Platinum and palladium dicyanides containing terminal or bridging Ph2PCH2PPh2 and heterobimetallics with silver, gold, mercury, rhodium, iridium, or molybdenum Fatma S. M. Hassan, David P. Markham, Paul G. Pringle and Bernard L. Shaw, pp 279 DOI:10.1039/DT9850000279

Studies of phosphazenes. Part 21. Associative and dissociative pathways in the aminolysis reactions of halogenocyclotriphosphazenes Kattesh V. Katti and Setharampattu S. Krishnamurthy, pp 285 DOI:10.1039/DT9850000285

Phosphorus-phosphorus bond cleavage in the cage molecule P4S3: synthesis and crystal structure of the trinuclear platinum complex [{Pt(µ-P4S3)(PPh3)}3]·C6H6 Massimo Di Vaira, Maurizio Peruzzini and Piero Stoppioni, pp 291 DOI:10.1039/DT9850000291

Chlorine trioxide, Cl2O6, a most efficient perchlorating reagent in new syntheses of anhydrous metal perchlorates, chloryl and nitryl perchloratometalates of cobalt(II), nickel(II), and copper(II). Reactivity of chlorine trioxide with anhydrous or hydrated chlorides and nitrates Jean-Louis Pascal, Jacqueline Potier and Cheng Shan Zhang, pp 297 DOI:10.1039/DT9850000297

Hydrogen generation by hydrolysis of sodium tetrahydroborate: effects of acids and transition metals and their salts Clifford M. Kaufman and Buddhadev Sen, pp 307 DOI:10.1039/DT9850000307

Crystal and molecular structures and magnetic properties of tetrameric copper(II) complexes with 3-hydroxy-5-hydroxymethyl-4-(4-hydroxy-4-phenyl-2-azabut-1-en-1-yl)-2-methylpyridine (H2L3), [Cu4L34]·9CH3OH and 3-hydroxy-5-hydroxymethyl-4-(4-hydroxy-3-methyl-4-phenyl-2azabut-1-en-1-yl)-2-methylpyridine (H2L1), [Cu4-L14]· 8CH3CH2OH : two complexes with ferromagnetic ground states Harald Astheimer, Francoise Nepveu, Leonhard Walz and Wolfgang Haase, pp 315 DOI:10.1039/DT9850000315

Chemical and structural aspects of silver-triphenylarsine complexes and silver-tin complex salts Mario Nardelli, Corrado Pelizzi, Giancarlo Pelizzi and Pieralberto Tarasconi, pp 321 DOI:10.1039/DT9850000321

The preparation and co-ordination chemistry of 2,2:6,2-terpyridine macrocycles. Part 4. Structural characterisation of an intermediate in a transient template reaction Edwin C. Constable, Fatima K. Khan, Jack Lewis, Michael C. Liptrot and Paul R. Raithby, pp 333 DOI:10.1039/DT9850000333

Synthesis of -lithioarylmethanes of m-xylene and its -trimethylsilyl derivatives; crystal structure of [{Li(Me2NCH2CH2NMe2)}2{C6H4(CHSiMe3)2-m}] Lutz M. Engelhardt, Wing-Por Leung, Colin L. Raston and Allan H. White, pp 337 DOI:10.1039/DT9850000337

Static and dynamic nuclear magnetic resonance studies of complexes of trimethylplatinum(IV) halides with olefinic thio- and seleno-ethers. X-Ray crystal structures of [PtXMe3(MeSeCHCHSeMe)](X = Cl or I) Edward W. Abel, Suresh K. Bhargava, Keith G. Orrell, Andrew W. G. Platt, Vladimir ik and T. Stanley Cameron, pp 345 DOI:10.1039/DT9850000345

Light-induced electron-transfer reactions. Part 3. Kinetics of the oxidation reaction of oxalate ion by peroxidisulphate ion, induced by irradiation with visible light of an aqueous solution containing tris(2,2-bipyridine)ruthenium(II) Masaru Kimura and Suzuko Nishida, pp 355 DOI:10.1039/DT9850000355

Mono- and bi-nuclear hydroxamates of bis(2-phenylazopyridine)ruthenium(II) Phalguni Ghosh and Animesh Chakravorty, pp 361 DOI:10.1039/DT9850000361

Zinc-sulphur bond enthalpy: its determination in the compound bis(diethyldithiocarbamato)zinc(II) Claudio Airoldi, pp 369 DOI:10.1039/DT9850000369

The extraction and transport of metal ions by 6,6-diamino-2,2-bipyridine derivatives Noriyuki Kishii, Koji Araki and Shinsaku Shiraishi, pp 373 DOI:10.1039/DT9850000373

Comparison between the bis(2-thiopyridine N-oxide) derivatives of CuII and NiI: an electron spin resonance study Martyn C. R. Symons and Douglas X. West, pp 379 DOI:10.1039/DT9850000379

Purification and X-ray crystal structure of bis[tris(trimethylsilyl)methyl]diarsene Alan H. Cowley, Nicholas C. Norman and Marek Pakulski, pp 383 DOI:10.1039/DT9850000383

The preparation and hydridic reduction of dicationic dicarbonyl complexes of osmium(II); the crystal and molecular structure of trans-bis[1,2-bis(diphenylphosphino)ethane-PP]carbonylformylosmium(II) hexafluoroantimonate-dichloromethane (1/1) Garry Smith, David J. Cole-Hamilton, Mark Thornton-Pett and Michael B. Hursthouse, pp 387 DOI:10.1039/DT9850000387

Heteropolytungstates as catalysts for the photochemical reduction of oxygen and water Robert Akid and James R. Darwent, pp 395 DOI:10.1039/DT9850000395

Nitrosoarene complexes of ruthenium and platinum and their reactions with NO and NO+ Christopher J. Jones, Jon A. McCieverty and Anne S. Rothin, pp 401 DOI:10.1039/DT9850000401

Notes. Insertion of NO into transition metal-aryl bonds: formation of zirconium complexes containing the [ON(R)NO]-(R = Ph or p-MeC6H4) ligand Christopher J. Jones, Jon A. McCleverty and Anne S. Rothin, pp 405 DOI:10.1039/DT9850000405

Synthesis and structural assessment of ammonium and caesium difluorodioxoperoxouranates(VI), A2[UO2(O2)F2](A = NH4 or Cs), and alkali-metal difluorodioxoperoxouranate(VI) monohydrates, A2[UO2(O2)F2]·H2O (A = K or Rb) Manabendra N. Bhattacharjee, Mihir K. Chaudhuri and Ranendra N. Dutta Purkayastha, pp 409 DOI:10.1039/DT9850000409

Ligand substitution on (N,N-dimethylformamide)[2,2,2-tri(N,N-dimethylamino)triethylamine]cobalt(II) Stephen F. Lincoln, Bruce G. Doddridge and John H. Coates, pp 413 DOI:10.1039/DT9850000413

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500BX003

Issue 3

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FX005

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FP005

Niobium(IV) sulphidohalides: preparation of Nb2X4S3 and Nb2X4S3·nL [X = Br or Cl; n= 4, L = NCMe, SMe2, or tetrahydrothiophene (tht); n= 2, L = PhSCH2CH2SPh]. Crystal and molecular structure of Nb2Cl4S2·4tht Michael G. B. Drew, David A. Rice and David M. Williams, pp 417 DOI:10.1039/DT9850000417

Hexakis(trimethylphosphine)molybdenum chemistry: dinitrogen, ethylene, butadiene, -cyclopentadienyl, and related derivatives Maurice Brookhart, Kevin Cox, F. Geoffrey N. Cloke, Jennifer C. Green, Malcolm L. H. Green, Philip M. Hare, Jim Bashkin, Andrew E. Derome and Peter D. Grebenik, pp 423 DOI:10.1039/DT9850000423

Reactions of co-ordinated ligands. Part 33. Mononuclear 2-vinyl complexes: synthesis, structure, and reactivity Stephen R. Allen, Robert G. Beevor, Michael Green, Nicholas C. Norman, A. Guy Orpen and Ian D. Williams, pp 435 DOI:10.1039/DT9850000435

Tin-molybdenum oxides. A study by X-ray diffraction, Mössbauer spectroscopy, and electron spin resonance Frank J. Berry and Christopher Hallett, pp 451 DOI:10.1039/DT9850000451

The synthesis of NR4[(Ta6Cl12)(H2O)6]X4(R = Me or Et, X = Cl or Br) by the spontaneous reduction of [Ta6Cl12]4+ to [Ta6Cl12]3+ in acidic media: X-ray structure analysis of NMe4[(Ta6Cl12)(H2O)6]Br4 Nevenka Brievi, ira Rui-Toro and Biserka Koji-Prodi, pp 455 DOI:10.1039/DT9850000455

Co-ordination of alkali metals by open-chain polyethers in transition metal complexes. Part 4. Variation in alkali-metal ion selectivity in cobalt and zinc complexes of 1-(o-carboxymethoxyphenoxy)-2-(o-hydroxyphenoxy)ethane (HL) and the X-ray and molecular structure of [Zn(NH4L2)2] David L. Hughes and Jonathan N. Wingfield, pp 459 DOI:10.1039/DT9850000459

X-Ray crystal structures and properties of tris(tetrathiafulvalenium) tetrachlorodimethylstannate(IV) and tetrathiafulvalenium trichlorodimethylstannate(IV) Gen-etsu Matsubayashi, Kosuke Ueyama and Toshio Tanaka, pp 465 DOI:10.1039/DT9850000465

The structure of pentachlorocyclopentadienylphenylmercury(II) in the solid state and in solution; the effect of X-ray absorption and crystal decay on molecular geometry parameters Alwyn G. Davies, Jeffrey P. Goddard, Michael B. Hursthouse and Nigel P. C. Walker, pp 471 DOI:10.1039/DT9850000471

Proton exchange and base hydrolysis of syn,anti-cis-dichloro(1,4,7,10-tetra-azacyclododecane)cobalt(III) cations Martha E. Sosa and Martin L. Tobe, pp 475 DOI:10.1039/DT9850000475

Macrocyclic polyphosphane ligands. Iron(II), cobalt(II), and nickel(II) complexes of (4RS,7RS,13SR,16SR)-tetraphenyl-1,10-dipropyl-1,10-diaza-4,7,13,16-tetraphosphacyclo-octadecane: crystal structures of their tetraphenylborate derivatives Carlo Mealli, Michal Sabat, Fabrizio Zanobini, Mario Ciampolini and Nicoletta Nardi, pp 479 DOI:10.1039/DT9850000479

Investigation into diphosphine oxides as ligands in diorganotin(IV) adducts. Part 3. Synthesis and crystal structure of two adducts of dinitratodiphenyltin(IV) with cis- and trans-1,2-bis(diphenylphosphoryl)ethylene Stefano Dondi, Mario Nardelli, Corrado Pelizzi, Giancarlo Pelizzi and Giovanni Predieri, pp 487 DOI:10.1039/DT9850000487

Kinetic and structural investigations of [FeIII(edta)]-[edta = ethylenediaminetetra-acetate(4-)] catalysed decomposition of hydrogen peroxide Keith C. Francis, Diane Cummins and John Oakes, pp 493 DOI:10.1039/DT9850000493

Photochemistry of manganese porphyrins. Part 9. Redox reactions photosensitised by diamagnetic metalloporphyrins Henriette Ellul, Anthony Harriman and Marie-Claude Richoux, pp 503 DOI:10.1039/DT9850000503

Bimetallic systems. Part 8. Heterobimetallic di-isonitrile or isonitrile-carbonyl complexes of rhodium or iridium bridged to silver or gold by Ph2PCH2PPh2 C. Richard Langrick and Bernard L. Shaw, pp 511 DOI:10.1039/DT9850000511

Glycine complexation with uranyl ion: absorptiometric, luminescence, and X-ray structural studies of tetrakis(glycine)dioxouranium(VI) nitrate Nathaniel W. Alcock, David J. Flanders, Terence J. Kemp and Mark A. Shand, pp 517 DOI:10.1039/DT9850000517

Studies on the anti-tumour activity of di- and tri-organotin(IV) complexes of amino acids and related compounds, of 2-mercaptoethanesulphonate, and of purine-6-thiol Friedo Huber, Gerhard Roge, Lothar Carl, Ghanem Atassi, Federico Spreafico, Stefania Filippeschi, Renato Barbieri, Arturo Silvestri, Eleonora Rivarola, Giuseppe Ruisi, Francesca Di Bianca and Giuseppe Alonzo, pp 523 DOI:10.1039/DT9850000523

Characterisation of chromium(VI) oxide tetrafluoride, CrOF4, and caesium pentafluoro-oxochromate(VI) Cs[CrOF5] Eric G. Hope, Peter J. Jones, William Levason, J. Steven Ogden, Mahmoud Tajik and Jeremy W. Turff, pp 529 DOI:10.1039/DT9850000529

The L-proline residue as a break-point in metal-peptide systems Leslie D. Pettit, Ian Steel, Grazyna Formicka-Kozlowska, Tomasz Tatarowski and Michel Bataille, pp 535 DOI:10.1039/DT9850000535

A kinetic study of the gas-phase thermolysis of hexaborane(10) Robert Greatrex, Norman N. Greenwood and Graham A. Jump, pp 541 DOI:10.1039/DT9850000541

Chemistry of metallacyclobutanones. Part 3. Reactions of heptane-2,4,6-trione and 1,5-diphenylpentane-1,3,5-trione with some carbonate complexes of platinum(II); X-ray crystal structures of [Pt{CH(COMe)COCH(COMe)}(PPh3)2] and [Pt{OC(CHCOPh)CHC(Ph)O}(PPh3)2] Ahmed Imran, Raymond D. W. Kemmitt, Andrew J. W. Markwick, Peter McKenna, David R. Russell and Lesley J. S. Sherry, pp 549 DOI:10.1039/DT9850000549

Systematic synthesis of tetranuclear osmium clusters by the reaction of trinuclear clusters with [OsH2(CO)4]; crystal structure of [Os4H3Br(CO)13] Evert J. Ditzel, Brian F. G. Johnson, Jack Lewis, Paul R. Raithby and Michael J. Taylor, pp 555 DOI:10.1039/DT9850000555

Structural and nuclear magnetic resonance studies of short selenium-nitrogen bonds Herbert W. Roesky, Karl-Ludwig Weber, Ulrich Seseke, Waltraud Pinkert, Mathias Noltemeyer, William Clegg and George M. Sheldrick, pp 565 DOI:10.1039/DT9850000565

Mononuclear 6-p-cymeneosmium(II) complexes and their reactions with Al2Me6 and other methylating reagents Javier A. Cabeza and Peter M. Maitlis, pp 573 DOI:10.1039/DT9850000573

Synthesis, spectroscopy, and structure of the mixed-valence complexes [PtII(en)2][PtIV(en)2X2][PtIII2(H2P2O5)4X2](en = 1,2-diaminoethane, X = Br or I) Robin J. H. Clark and Mohamedally Kurmoo, pp 579 DOI:10.1039/DT9850000579

Trimethylphosphine polyhydrides of tungsten and rhenium David Lyons and Geoffrey Wilkinson, pp 587 DOI:10.1039/DT9850000587

Aluminium-27 and hydrogen-1 nuclear magnetic resonance studies of solutions of aluminium salts in alcohol-chloroform mixtures J. W. Akitt and Joel Lelievre, pp 591 DOI:10.1039/DT9850000591

Notes. Synthesis and characterization of several mononuclear cobalt(IV) dithiocarbamates, [Co(S2CNRR)3]ClO4[R = R= Me, Et, or CH2Ph; R = Me, R= Ph; R,R=-(CH2)4-] Jean-Pierre Barbier, Benjamin Mve Ondo and René P. Hugel, pp 597 DOI:10.1039/DT9850000597

Solvent effects on the redox potential of the uranium(VI)-uranium(V) couple Renato Seeber and Piero Zanello, pp 601 DOI:10.1039/DT9850000601

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500BX007

Issue 4

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FX009

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FP009

Synthesis, characterization, and structure of the complex [FeH(H2BH2){CH3C(CH2PPh2)3}] Carlo A. Ghilardi, Paolo Innocenti, Stefano Midollini and Annabella Orlandini, pp 605 DOI:10.1039/DT9850000605

Complexes of the platinum metals. Part 23. Synthesis of the nitrosyl carboxylate complexes [M(O2CR)2(NO)(PPh3)2](M = Rh or Ir; R = CF3, C2F3, or C6F5): crystal and molecular structures of the trifluoroacetate derivatives [M(O2CCF3)2(NO)(PPh3)2] Alan Dobson, David S. Moore, Stephen D. Robinson, Anita M. R. Galas and Michael B. Hursthouse, pp 611 DOI:10.1039/DT9850000611

Complexes of the platinum metals. Part 24. The role of dioxygen in the reactions of trifluoroacetic acid with the rhodium and iridium nitrosyls [M(NO)(PPh3)3] Esther B. Boyar, David S. Moore, Stephen D. Robinson, Brian R. James, Michael Preece and Ian Thorburn, pp 617 DOI:10.1039/DT9850000617

Complexes of the platinum metals. Part 25. Reactions of ruthenium and osmium nitrosyls [MH(NO)(PPh3)3] and [M(NO)2(PPh3)2] with perfluorocarboxylic acids: X-ray crystal structure determination of nitrosyl(trifluoroacetato)(trifluoroacetohydroximato-OO)bis(triphenylphosphine)osmium(II)-dichloromethane (1/1) Esther B. Boyar, Alan Dobson, Stephen D. Robinson, Barry L. Haymore and John C. Huffman, pp 621 DOI:10.1039/DT9850000621

Complexes of the platinum metals. Part 26. Multinuclear nuclear magnetic resonance studies on rhodium(II) carboxylate adducts Esther B. Boyar and Stephen D. Robinson, pp 629 DOI:10.1039/DT9850000629

Catalytic air oxidation of benzoin in the presence of dioxomolybdenum(VI) complexes with sulphur chelate ligands Norikazu Ueyama, Keiko Kamabuchi and Akira Nakamura, pp 635 DOI:10.1039/DT9850000635

Kinetics and mechanism of single electron oxidations of the tervalent uranium ion, U3+(aq), by free radicals in aqueous solutions Daniel Golub, Haim Cohen and Dan Meyerstein, pp 641 DOI:10.1039/DT9850000641

Synthesis and X-ray structural studies on the cluster compounds [RuRh3(µ3-CO)2(CO)3(-C5Me5)3] and [RuRh2(µ-CO)(µ3-CO)(CO)2(4-C8H10)(-C5Me5)2] Louis J. Farrugia, John C. Jeffery, Christine Marsden and F. Gordon A. Stone, pp 645 DOI:10.1039/DT9850000645

Synthesis and physico-chemical properties of cationic derivatives of phthalocyaninatocopper(II) Andrew Skorobogaty, Thomas D. Smith, Geoffrey Dougherty and John R. Pilbrow, pp 651 DOI:10.1039/DT9850000651

Solvent dependence of the stereochemistry of base-catalysed solvolysis of trans-[Co(NH3)4(15NH3)X]3+/2+ ions in dipolar aprotic solvents Sijbe Balt and Hendrikus J. Gamelkoorn, pp 659 DOI:10.1039/DT9850000659

Spectrochemistry of solutions. Part 16. A Raman spectroscopic study of the complexation of mercury(II) by cyanide ligands in liquid ammonia at 293 K Graham J. Earl, Peter Gans and J. Bernard Gill, pp 663 DOI:10.1039/DT9850000663

Mono--cycloheptatrienyltitanium chemistry: synthesis, molecular and electronic structures, and reactivity of the complexes [Ti(-C7H7)L2X](L = tertiary phosphine, O- or N-donor ligand; X = Cl or alkyl) Cathryn E. Davies, Ian M. Gardiner, Jennifer C. Green, Malcolm L. H. Green, Nicholas J. Hazel, Peter D. Grebenik, Victor S. B. Mtetwa and Keith Prout, pp 669 DOI:10.1039/DT9850000669

Synthesis and characterisation of 1,2-bis(dimethylphosphino)ethane (dmpe) complexes of chromium-(0) and -(IV): X-ray crystal structures of trans-Cr(N2)2(dmpe)2, cis-Cr(CO)2(dmpe)2, Cr(C2Ph2)2(dmpe), and CrH4(dmpe)2 Julian E. Salt, Gregory S. Girolami, Geoffrey Wilkinson, Majid Motevalli, Mark Thornton-Pett and Michael B. Hursthouse, pp 685 DOI:10.1039/DT9850000685

Synthesis of [Fe(4-C8H8)(CO)2L][L = MeNC, PriNC, ButNC, PhNC, 2,6-Me2C6H3NC, or P(OMe)3] and proof of the applicability of the Woodward-Hoffmann rules to the fluxionality of [Fe(4-C8H8)(CO)2(CNPri)] Michael J. Hails, Brian E. Mann and Catriona M. Spencer, pp 693 DOI:10.1039/DT9850000693

Reduction-oxidation properties of organotransition-metal complexes. Part 20. Oxidative and thermolytic cyclopropane ring-opening reactions; X-ray crystal structure of [Fe2(CO)6(4:4-C16H18)] Neil G. Connelly, Andrew R. Lucy, Rona M. Mills, John B. Sheridan and Peter Woodward, pp 699 DOI:10.1039/DT9850000699

Difluorophosphate complexes of chromium, manganese, iron, cobalt, and nickel Michael F. A. Dove, Richard C. Hibbert and Norman Logan, pp 707 DOI:10.1039/DT9850000707

Electrochemistry of clusters. Part 4. Redox behaviour of tetrametallic clusters [M12M22(5-C5H5)2(µ3-CO)2(µ-CO)4(PR3)2](M1= Pt or Pd; M2= Cr, Mo, or W; R = Me, Et, Bun, or Ph) Rodolphe Jund, Paul Lemoine, Maurice Gross, Robert Bender and Pierre Braunstein, pp 711 DOI:10.1039/DT9850000711

Studies on transition-metal cyano-complexes. Part 4. Cyanide hydride complexes of Groups 6A and 8 M. Jane Mockford and William P. Griffith, pp 717 DOI:10.1039/DT9850000717

An equation for predicting the formation constants of hydroxo-metal complexes Paul L. Brown, Ronald N. Sylva and John Ellis, pp 723 DOI:10.1039/DT9850000723

Displacement of pyridine-2-methanol from dichloro(pyridine-2-methanolato)gold(III) in acidic solution. Ring opening at oxygen Luciano Canovese, Lucio Cattalini, Giampaolo Marangoni and Martin L. Tobe, pp 731 DOI:10.1039/DT9850000731

Spectroscopic and magnetic properties of cobalt(II) and nickel(II) clusters obtained from 1-(hydroxymethyl)-3,5-dimethylpyrazole. X-Ray structure of tetrakis[chloro(µ3-3,5-dimethyl-N-oxymethylpyrazolato-N2,µ3-O)(ethanol)nickel(II)] Frans Paap, Elisabeth Bouwman, Willem L. Driessen, Rudolf A. G. de Graaff and Jan Reedijk, pp 737 DOI:10.1039/DT9850000737

The addition of protic acids to [Mn2(CO)5(Ph2PCH2PPh2)2] to give bridging hydrido-compounds Helen C. Aspinall and Antony J. Deeming, pp 743 DOI:10.1039/DT9850000743

Short hydrogen bonds: diadducts of substituted pyridine N-oxides: synthesis, spectroscopic studies, and X-ray structure M. Sakhawat Hussain and Saud A. Aziz Al-Hamoud, pp 749 DOI:10.1039/DT9850000749

Determination of the molecular structure of difluorophosphine sulphide by the combined analysis of data from electron diffraction, microwave spectroscopy, and liquid crystal nuclear magnetic resonance spectroscopy Peter D. Blair, Stephen Cradock and David W. H. Rankin, pp 755 DOI:10.1039/DT9850000755

Carbaborane derivatives of the late- and post-transition elements. Part 3. Structural consequences of ligand substitution in palladadicarbadodecaboranes 3-L2-3,1,2-PdC2B9H11. The crystal and molecular structures of 3-[Me2N(CH2)2NMe2]-3,1,2-PdC2B9H11 and 3-(PMe3)2-3,1,2-PdC2B9H11 Howard M. Colquhoun, Trevor J. Greenhough and Malcolm G. H. Wallbridge, pp 761 DOI:10.1039/DT9850000761

Solvent extraction of gold and platinum-group metals using 2-nonylpyridine 1-oxide, and the crystal and molecular structure of bis(2-nonylpyridine 1-oxide)hydrogen(1 +) tetrachloroaurate(III) Michael G. B. Drew, Lyn R. Glaves and Michael J. Hudson, pp 771 DOI:10.1039/DT9850000771

Annelation of ring-opened arylcyclopropenium ions to co-ordinated cyclo-octatetraene, and the X-ray crystal structure of [Fe(CO)3(,3-C11H9Ph3)] Karen Broadley, Neil G. Connelly, Paul G. Graham, Judith A. K. Howard, Wilhelm Risse and Mark W. Whiteley, pp 777 DOI:10.1039/DT9850000777

Molecular structure and solid-state properties of the two-dimensional conducting mixed-valence complex [NBu4]0.29[Ni(dmit)2] and the neutral [Ni(dmit)2](H2dmit = 4,5-dimercapto-1,3-dithiole-2-thione); members of an electron-transfer series Lydie Valade, Jean-Pierre Legros, Michèle Bousseau, Patrick Cassoux, Mary Garbauskas and Leonard V. Interrante, pp 783 DOI:10.1039/DT9850000783

Platinum(II) complexes of nitroimidazoles: synthesis, characterisation, and X-ray crystal structures of cis-dichlorobis[1-(2-hydroxyethyl)-2-hydroxymethyl-5-nitroimidazole]platinum(II) and trans-dichlorobis[1-(2-hydroxy-3-methoxypropyl)-2-nitroimidazole]platinum(II) John R. Bales, Muhammed A. Mazid, Peter J. Sadler, Aneel Aggarwal, Reiko Kuroda, Stephen Neidle, David W. Gilmour, Barry J. Peart and Christopher A. Ramsden, pp 795 DOI:10.1039/DT9850000795

Reaction of some aliphatic diamines with four-co-ordinated unsymmetrical ketoenamine copper(II) and nickel(II) complexes Marek Kwiatkowski and Edmund Kwiatkowski, pp 803 DOI:10.1039/DT9850000803

The molecular structure of gaseous dimethylamidogallane: characterization of the dimer [Me2NGaH2]2 by electron diffraction and vibrational spectroscopy Paul L. Baxter, Anthony J. Downs, David W. H. Rankin and Heather E. Robertson, pp 807 DOI:10.1039/DT9850000807

Palladium(II,IV) mixed-valence complexes of 1,2-diaminoethane, 1,3-diaminopropane, and diethylenetriamine: syntheses, electronic, infrared, Raman, and resonance Raman spectra and X-ray studies Robin J. H. Clark, Vincent B. Croud and Mohamedally Kurmoo, pp 815 DOI:10.1039/DT9850000815

Mercurated and tellurated Schiff bases and phenylhydrazones Harkesh B. Singh and William R. McWhinnie, pp 821 DOI:10.1039/DT9850000821

Determination of the molecular structures of tri(t-butyl)phosphine oxide and tri(t-butyl)phosphine imide in the gas phase by electron diffraction David W. H. Rankin, Heather E. Robertson, Ragnhild Seip, Hubert Schmidbaur and Günther Blaschke, pp 827 DOI:10.1039/DT9850000827

Lewis-base adducts of Group 1B metal(I) compounds. Part 16. Synthesis, structure, and solid-state phosphorus-31 nuclear magnetic resonance spectra of some novel [Cu4X4L4](X = halogen, L = N, P base)cubane clusters Jeffrey C. Dyason, Peter C. Healy, Lutz M. Engelhardt, Chaveng Pakawatchai, Vincent A. Patrick, Colin L. Raston and Allan H. White, pp 831 DOI:10.1039/DT9850000831

Lewis-base adducts of Group 1B metal(I) compounds. Part 17. Synthesis and crystal structures of adducts of copper(I) cyanide with nitrogen bases Jeffery C. Dyason, Peter C. Healy, Lutz M. Engelhardt, Chaveng Pakawatchai, Vincent A. Patrick and Allan H. White, pp 839 DOI:10.1039/DT9850000839

Interconversion of 42- and 44-electron platinum triangulo-clusters using chelating tertiary phosphine ligands and the structural characterisation of [1,3-bis(diphenylphosphino)propane]-tris(µ-sulphur dioxide)-bis(tricyclohexylphosphine)triplatinum-benzene (1/2), [Pt3(µ-SO2)3{P(C6H11)3}2(dppp)]·2C6H6 Malcolm F. Hallam, Nigel D. Howells, D. Michael P. Mingos and Robert W. M. Wardle, pp 845 DOI:10.1039/DT9850000845

Chemistry of platinum sulphido-complexes. Part 5. Synthesis and crystal and molecular structure of 3-(-cyclo-octa-1,5-diene)bis(µ3-sulphido)-1,1,2,2-tetrakis(triphenylphosphine)diplatinum(II)rhodium(I) hexafluorophosphate-dichloromethane (1/1), [Pt2Rh(µ3-S)2(PPh3)4(-C8H12)]PF6·CH2Cl2 Clive E. Briant, David I. Gilmour, Michael A. Luke and D. Michael P. Mingos, pp 851 DOI:10.1039/DT9850000851

Acidic and basic properties of the hydroxycarbonyl complex [IrCl2(CO2H)(CO)(PMe2Ph)2] Karen Bowman, Antony J. Deeming and Graeme P. Proud, pp 857 DOI:10.1039/DT9850000857

Notes. Correlation between structure and circular dichroism. Structure and absolute configuration of the (-)isomer of lithium (ethylenediamine-N,N-diacetato-N,N-di-3-propionato)rhodate(III) pentahydrate Rajna Herak, Ljubica Manojlovi-Muir, Milo I. Djuran and Duan J. Radanovi, pp 861 DOI:10.1039/DT9850000861

Multinuclear nuclear magnetic resonance study of the interaction of some phosphorus(V) compounds with inorganic acids. The protonating abilities of HNO3, MeSO3H, and HPO2F2 towards the phosphoryl group Richard C. Hibbert and Norman Logan, pp 865 DOI:10.1039/DT9850000865

Letters Michael J. Blandamer, John Burgess, Dipak Sengupta, Amalendu Pal and Sujit Chandra Lahiri, pp 867 DOI:10.1039/DT9850000867

Additions and corrections G. Hägele, G. Tossing, W. Kückelhaus, J. Seega and R. K. Harris, pp 871 DOI:10.1039/DT9850000871

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500BX011

Issue 5

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FX013

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FP013

Organoruthenium(II) complexes formed by insertion reactions of some vinyl compounds and conjugated dienes into a hydrido-ruthenium bond Katsuma Hiraki, Naoyuki Ochi, Yoko Sasada, Hideki Hayashida, Yoshio Fuchita and Shunichiro Yamanaka, pp 873 DOI:10.1039/DT9850000873

A photoelectron spectroscopic study of di-t-butylphosphazene Susanne Elbel, Andrew Ellis, Edgar Niecke, Helge Egsgaard and Lars Carlsen, pp 879 DOI:10.1039/DT9850000879

Complexes of lanthanoid salts with macrocyclic ligands. Part 17. Synthesis and crystal and molecular structure of a hydroxide-bridged praseodymium trifluoroacetate complex with 15-crown-5-ether, [Pr2(CF3CO2)3(OH)(C10H20O5)2][Pr2(CF3CO2)8] David Harrison, Aldo Giorgetti and Jean-Claude G. Bünzli, pp 885 DOI:10.1039/DT9850000885

A new electron spin resonance spectrum for an exchange- and dipole-dipole coupled superoxocobalamin free-radical pair occurring in adenosylcobalamin-containing systems Abbas Pezeshk and Robert E. Coffman, pp 891 DOI:10.1039/DT9850000891

Optical resolution of DL-2,2-bipiperidine through its cobalt(III) complex Mitsunobu Sato, Yoichi Sato, Shigenobu Yano and Sadao Yoshikawa, pp 895 DOI:10.1039/DT9850000895

Electron-transfer reactions from cis-dialkylbis(2,2-bipyridyl)cobalt(III) complexes to organic oxidants Shunichi Fukuzumi, Kunio Ishikawa and Toshio Tanaka, pp 899 DOI:10.1039/DT9850000899

Formation of substituted cyclopentadienyl ligands on tungsten via reactions between the alkyne complexes [W(CO)(R1C2R2)3](R1= R2= Ph or Et; R1= Me, R2= Ph) and the alkylidyne compounds [W(CR)(CO)2(-C5H5)](R = C6H4Me-4 or Me); X-ray crystal structures of [W2(µ-CO)2(CO)(-PhC2Ph)(-C5Ph4R)-(-C5H5)] and [W2(µ-EtC2Et)(CO)4(-C5Et4R)(-C5H5)](R = C6H4Me-4) Gabino A. Carriedo, Judith A. K. Howard, Diane B. Lewis, Gregg E. Lewis and F. Gordon A. Stone, pp 905 DOI:10.1039/DT9850000905

Crystal and molecular structures and magnetic properties of bromo(3-dimethylaminopropan-1-olato)copper(II), chloro(3-dimethylaminopropan-1-olato) copper(II), and (3-diethylaminopropan-1-olato)isocyanatocopper(II) Leonhard Walz, Helmut Paulus and Wolfgang Haase, pp 913 DOI:10.1039/DT9850000913

Alkyl, hydrido, and tetrahydroaluminato complexes of manganese with 1,2-bis(dimethylphosphino)ethane (dmpe). X-Ray crystal structures of Mn2(µ-C6H11)2(C6H11)2(µ-dmpe), (dmpe)2Mn(µ-H)2AlH(µ-H)2AlH(µ-H)2-Mn(dmpe)2, and Li4{MnH(C2H4)[CH2(Me)PCH2CH2PMe2]2}2·2Et2O Gregory S. Girolami, Christopher G. Howard, Geoffrey Wilkinson, Helen M. Dawes, Mark Thornton-Pett, Majid Motevalli and Michael B. Hursthouse, pp 921 DOI:10.1039/DT9850000921

Reaction of transition-metal carbonylate anions and 1,1,1-tris(halogenomethyl)ethane. X-Ray crystal structures of tricarbonyl(5-cyclopentadienyl)(1-methylcyclopropylmethyl)tungsten(II), and tetraethylammonium enneacarbonyliododirhenate(0) Ronaldo Poli, Geoffrey Wilkinson, Majid Motevalli and Michael B. Hursthouse, pp 931 DOI:10.1039/DT9850000931

The molecular structure of gaseous bis(trifluoromethyl)selenium difluoride as determined by electron diffraction Paul L. Baxter, Anthony J. Downs, Alan M. Forster, Michael J. Goode, David W. H. Rankin and Heather E. Robertson, pp 941 DOI:10.1039/DT9850000941

Electrochemically induced ligand substitutions on [OsCl3(PMe2Ph)3]: rational pathways to osmium(II) complexes Vyvyan T. Coombe, Graham A. Heath, T. Anthony Stephenson, John D. Whitelock and Lesley J. Yellowlees, pp 947 DOI:10.1039/DT9850000947

Reactions of 6,6-bis(nido-decaboranyl) oxide and 6-hydroxy-nido-decaborane with dihalogenobis(phosphine) complexes of nickel, palladium, and platinum, and some related chemistry; nuclear magnetic resonance investigations and the crystal and molecular structures of bis(dimethylphosphine)-di-µ-(2,3,4-3-nido-hexaboranyl)-diplatinum(Pt-Pt), [Pt2(µ-3-B6H9)2(PMe2Ph)2], and of 2,4-dichloro-1,1-bis(dimethylphenylphosphine)-closo-1-nickeladecaborane, [(PhMe2P)2NiB9H7Cl2] Norman N. Greenwood, Michael J. Hails, John D. Kennedy and Walter S. McDonald, pp 953 DOI:10.1039/DT9850000953

Pyrazolate A-frame rhodium complexes. Crystal structures of [Rh2(µ-dmpz)(CO)2(µ-dppm)2][ClO4] and [Rh2(µ-dmpz)I2(CO)2(µ-dppm)2][ClO4] Luis A. Oro, Daniel Carmona, Pedro L. Pérez, Montserrat Esteban, Antonio Tiripicchio and Marisa Tiripicchio-Camellini, pp 973 DOI:10.1039/DT9850000973

Co-ordination chemistry of pyridyl and N-methylimidazolyl ketones. Synthetic and X-ray structural studies of copper(II), nickel(II), and dimethylgold(III) complexes Peter K. Byers, Allan J. Canty, Lutz M. Engelhardt, Jennifer M. Patrick and Alian H. White, pp 981 DOI:10.1039/DT9850000981

Electrostatic solvent effect on the formation of the mixed-chelate complex (acetylacetonato)(diethyldithiocarbamato)copper(II) Toshie Ohya, Kyoko Iwamoto and Mitsuo Sato, pp 987 DOI:10.1039/DT9850000987

The red form of bis(1,10-phenanthroline)dithiocyanatoiron(II) Sonia Savage (née Roquet-Covarrubias), Zhou Jia-Long and Alfred G. Maddock, pp 991 DOI:10.1039/DT9850000991

Thermochemistry of polyhalides. Part 5. Standard enthalpies of formation of tetramethylammonium and tetraethylammonium tetrachloroiodates B. Mokhtar Derakhshan, Arthur Finch, Peter N. Gates and Michael Stephens, pp 997 DOI:10.1039/DT9850000997

Actinide structural studies. Part 7. The crystal and molecular structures of (2,2-bipyridyl)dinitratodioxo-uranium(VI) and -neptunium(VI), and diacetato-(2,2-bipyridyl)dioxo-uranium(VI) and -neptunium(VI) Nathaniel W. Alcock, David J. Flanders and David Brown, pp 1001 DOI:10.1039/DT9850001001

Bimetallic systems. Part 9. The synthesis of and nuclear magnetic resonance studies on 10-membered ring complexes of type [(OC)4M1(µ-Ph2PCH2CH2PPh2)2M2(CO)4](M1, M2= Cr, Mo, or W) Jonathan A. Iggo and Bernard L. Shaw, pp 1009 DOI:10.1039/DT9850001009

Bimetallic systems. Part 10. Synthesis of complexes of type [(RCC)Pt(µ-dppm)2Pt(CCR)](dppm = Ph2PCH2PPh2, R = Ph or p-tolyl) and their corresponding A frames[(RCC)Pt(µ-dppm)2(µ-H)Pt(CCR)]Cl or [(RCC)Pt(µ-dppm)2(µ-X)Pt(CCR)] with X = CS2 or MeOOCCCCOOMe C. Richard Langrick, Paul G. Pringle and Bernard L. Shaw, pp 1015 DOI:10.1039/DT9850001015

Reduction-oxidation properties of organotransition-metal complexes. Part 21. Synthesis and X-ray structural characterisation of the redox-related pair of cyclohexadienyl complexes [Mn(CO)(dppe)(5-C6H6Ph)] and [Mn(CO)(dppe)(5-C6H6Ph)][PF6]·0.5CH2Cl2 Neil G. Connelly, Mark J. Freeman, A. Guy Orpen, Alan R. Sheehan, John B. Sheridan and Dwight A. Sweigart, pp 1019 DOI:10.1039/DT9850001019

Reduction-oxidation properties of organotransition-metal complexes. Part 22. Stereospecific oxidative cyclopropane ring opening and reductive cyclobutane ring formation in polycyclic hydrocarbon complexes of iron; X-ray crystal structures of [Fe2(CO)6(5:5-C16H16)][PF6]2·CH3NO2 and [Fe2(CO)6(4:4-C16H16)] Neil G. Connelly, Mark J. Freeman, A. Guy Orpen, John B. Sheridan, Andrew N. D. Symonds and Mark W. Whiteley, pp 1027 DOI:10.1039/DT9850001027

New isomers of [Os3(CO)10(PMe2Ph)2] and [Os3(CO)9(PMe2Ph)3] Antony J. Deeming, Susan Donovan-Mtunzi, Shariff E. Kabir and Peter J. Manning, pp 1037 DOI:10.1039/DT9850001037

Reaction of trithiazyl trichloride, (NSCl)3, with triphenylphosphine or triphenylphosphine metal complexes. X-Ray crystal structure of aminotriphenylphosphonium chloride-dichloromethane (1/1), [Ph3PNH2]Cl·CH2Cl2 Michael B. Hursthouse, Nigel P. C. Walker, Christopher P. Warrens and J. Derek Woollins, pp 1043 DOI:10.1039/DT9850001043

Mechanism of addition of aryltrimethyl-silanes and -stannanes to tricarbonyl(cyclohexadienyl)ruthenium(II) cation Timothy I. Odiaka, pp 1049 DOI:10.1039/DT9850001049

Notes. Dinuclear mono-µ-chloro-pyridyldiaza rhodium(I) complexes derived from pyridyldi-imines via hydrogen transfer from ethanol Aidan Lavery and S. Martin Nelson, pp 1053 DOI:10.1039/DT9850001053

Platinum(II) complexes containing a cationic amine ligand: crystal structure of [(2-aminoethyl)ammonium]trichloroplatinum(II) Giovanni Natile, Francesco P. Fanizzi, Luciana Maresca, Anna M. Manotti-Lanfredi and Antonio Tiripicchio, pp 1057 DOI:10.1039/DT9850001057

Preparation and crystal structure of Na4[Hg4(µ-Cl)4{P(O)(OEt)2}8]·6H2O Paul Peringer, Peter-Paul Winkler, Gottfried Huttner and Laszlo Zsolnai, pp 1061 DOI:10.1039/DT9850001061

Geometry-dependent complexation effects in carbon-13 nuclear magnetic resonance spectra of tricarbonyl(3-8--[2.2]paracyclophane)chromium and related complexes Nobuo Mori, Michiko Takamori and Tetsuo Takemura, pp 1065 DOI:10.1039/DT9850001065

Tetrachlorobis(tetrahydrofuran)molybdate(III), a new intermediate for the synthesis of molybdenum(III) complexes: preparation and crystal structure Adrian Hills, G. J. Leigh, John Hutchinson and Jon A. Zubieta, pp 1069 DOI:10.1039/DT9850001069

N,N-disubstituted dithiomalonamide complexes of antimony(III). Crystal and molecular structure of [SbCl3{C2H5NHC(S)CH2C(S)NHC2H5}] with lone-pair occupation of an antimony co-ordination site Jonathan M. Kisenyi, Gerald R. Willey and Michael G. B. Drew, pp 1073 DOI:10.1039/DT9850001073

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500BX015

Issue 6

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FX017

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FP017

Electron spin resonance studies of iron(III) complexes of ethylenediaminetetra-acetate and N-(2-hydroxyethyl)ethylenediamine-NNN-triacetate in co-ordinating solvents Catharina T. Migita, Kotaro Ogura and Takashi Yoshino, pp 1077 DOI:10.1039/DT9850001077

Absorption and emission in tris(2,2-bipyridyl)ruthenium(II); effects of excited-state asymmetry P. S. Braterman, G. A. Heath and L. J. Yellowlees, pp 1081 DOI:10.1039/DT9850001081

Carbon-carbon formation at di-iron centres. Part 2. Reactivity of [Fe2(CO)6(µ-COEt){µ-C(R)C(R)H}] complexes toward MeOC(O)CCC(O)OMe (R = Ph) and CF3CCCF3(R = Ph or H); X-ray crystal structures of [Fe2(CO)5{µ-C(OEt)C[C(O)OMe]C[C(O)OMe]}{µ-C(Ph)C(Ph)H}]·H2O and [Fe2(CO)6{µ-C(CF3)C(CF3)CHCHCH(OMe)}] Josep Ros, Gérard Commenges, René Mathieu, Xavier Solans and Manuel Font-Altaba, pp 1087 DOI:10.1039/DT9850001087

Reactions of cobalt(II) protoporphyrin IX dimethyl ester, [COIIP], and [CoIIIP(Cl)] in co-ordinating aliphatic alcohols Duanka Pavlovi, Smiljko Aperger, Zdravko Dokuzovi, Blaenka Jurii, Xhavit Ahmeti, Mira Serti and Ivo Murati, pp 1095 DOI:10.1039/DT9850001095

Thermochemical data for adducts of zinc, cadmium, and mercury halides with hexamethylphosphoramide José C. de Queiroz, Claudio Airoldi and Aécio P. Chagas, pp 1103 DOI:10.1039/DT9850001103

Equilibrium and kinetic study of pyridine binding to phthalocyaninatoiron(II) in dimethyl sulphoxide Giovanna Pennesi, Claudio Ercolani, Paolo Ascenzi, Maurizio Brunori and Fabrizio Monacelli, pp 1107 DOI:10.1039/DT9850001107

Equilibrium and kinetic study of the reaction between phthalocyaninatoiron(II) and carbon monoxide in dimethyl sulphoxide in the presence of pyridine. Evidence for the formation of a transient Giovanna Pennesi, Claudio Ercolani, Gentilina Rossi, Paolo Ascenzi, Maurizio Brunori and Fabrizio Monacelli, pp 1113 DOI:10.1039/DT9850001113

Polyhedral rhenaborane chemistry: crystal and molecular structures of the nido-6-rhenadecaborane cluster compounds [6,6,6,6-(PMe2Ph)3H-nido-6- ReB9H13] and [2-(PMe2Ph)-6,6,6,6-(PMe2Ph)2ClH-nido-6-ReB9H12]; nuclear magnetic resonance parameters of these and other related nido-rhenadecaborane cluster species Michael A. Beckett, Norman N. Greenwood, John D. Kennedy and Mark Thornton-Pett, pp 1119 DOI:10.1039/DT9850001119

The preparation and properties of some diphosphines R2PCH2CH2PR2(R = alkyl or aryl) and of their rhenium(I) dinitrogen derivatives Joseph Chatt, Wasif Hussain, G. Jeffery Leigh, Hapipah Mohd. Ali, Christopher J. Picket and Douglas A. Rankin, pp 1131 DOI:10.1039/DT9850001131

New carbide clusters in the cobalt sub-group. Part 14. Synthesis and structural characterization of the anion [Co13C2(CO)24]3- as its benzyltrimethylammonium salt Vincenzo G. Albano, Dario Braga, Alessandro Fumagalli and Secondo Martinengo, pp 1137 DOI:10.1039/DT9850001137

Studies on singlet oxygen in aqueous solution. Part 1. Formation of singlet oxygen from hydrogen peroxide with two-electron oxidants Dennis F. Evans and Mark W. Upton, pp 1141 DOI:10.1039/DT9850001141

Studies on singlet oxygen in aqueous solution. Part 2. Water-soluble square-planar nickel complexes as quenchers Maria Botsivali, Dennis F. Evans, Paul H. Missen and Mark W. Upton, pp 1147 DOI:10.1039/DT9850001147

Studies on singlet oxygen in aqueous solution. Part 3. The decomposition of peroxy-acids Dennis F. Evans and Mark W. Upton, pp 1151 DOI:10.1039/DT9850001151

Dynamic behaviour of carbon-metallated palladium hydrazone complexes. Crystal structures of [{Pd[CH2CMe2C(N-NMePh)Me]Cl}2] and [{Pd[CH2C(N-NMePh)But]Cl}2] Beatrice Galli, Francesco Gasparrini, Brian E. Mann, Luciana Maresca, Giovanni Natile, Anna M. Manotti-Lanfredi and Antonio Tiripicchio, pp 1155 DOI:10.1039/DT9850001155

Synthesis of gold-(I) and -(III) complexes with carbonyl-stabilized phosphorus ylides. Crystal structure of [{Au(PPh3)}2{µ-C(PPh3)CO2Et}]ClO4 José Vicente, Maria T. Chicote, José A. Cayuelas, Juan Fernandez-Baeza, Peter G. Jones, George M. Sheldrick and Pablo Espinet, pp 1163 DOI:10.1039/DT9850001163

Solution chemistry of macrocycles. Part 4. Thermodynamics of protonation and complexation of several N2S2 macrocycles Mauro Micheloni, Piero Paoletti, Liselotte Siegfried-Hertli and Thomas A. Kaden, pp 1169 DOI:10.1039/DT9850001169

High-field vanadium-51 and oxygen-17 nuclear magnetic resonance study of peroxovanadates(V) Aidan T. Harrison and Oliver W. Howarth, pp 1173 DOI:10.1039/DT9850001173

Macrocyclic polyphosphane ligands. Cobalt(II) and nickel(II) complexes of 5RS,8RS,16RS,19RS-tetraphenyl-5,8,16,19-tetraphospha-1,12-dithiacyclodocosane (-L1) and the crystal structure of [Co(-L1)][BF4]2·0.5H2O Mario Ciampolini, Nicoletta Nardi, Pier Luigi Orioli, Stefano Mangani and Fabrizio Zanobini, pp 1179 DOI:10.1039/DT9850001179

Co-ordination chemistry of dimethylgold(III). Synthesis, structural studies, and fluxional behaviour of complexes with polydentate ligands Peter K. Byers, Allan J. Canty, Nigel J. Minchin, Jennifer M. Patrick, Brian W. Skelton and Allan H. White, pp 1183 DOI:10.1039/DT9850001183

On the effect of cyanide ion on the reaction of pentacyanonitrosylferrate(2-) with cysteine Károly Antal, István Bányai and Mihály T. Beck, pp 1191 DOI:10.1039/DT9850001191

SUPERQUAD: an improved general program for computation of formation constants from potentiometric data Peter Gans, Antonio Sabatini and Alberto Vacca, pp 1195 DOI:10.1039/DT9850001195

Specific binding of the tyrosine residue in copper(II) complexes of Tyr-Pro-Gly-Tyr and Tyr-Gly-Pro-Tyr Leslie D. Pettit, Ian Steel, Teresa Kowalik, Henryk Kozlowski and Michel Bataille, pp 1201 DOI:10.1039/DT9850001201

Isolated CH stretching frequencies, methyl group geometry, and methyl CH bond lengths and strengths in tricarbonyl(5-cyclopentadienyl)methyl-chromium(II), -molybdenum(II), and -tungsten(II) Donald C. McKean, Geoffrey P. McQuillan, Andrew R. Morrisson and Ivy Torto, pp 1207 DOI:10.1039/DT9850001207

A mechanistic study on complexes of type mer-[Cr(CO)3(2-L-L)(-L-L)](where L-L = Ph2PCH2PPh2, Ph2PNHPPh2, or Ph2PNMePPh2) using spectroscopic and convolutive electrochemical techniques Adrian Blagg, Stuart W. Carr, Gary R. Cooper, Ian D. Dobson, J. Bernard Gill, David C. Goodall, Bernard L. Shaw, Norman Taylor and Terrence Boddington, pp 1213 DOI:10.1039/DT9850001213

Cluster chemistry. Part 31. An [Ru3(CO)12] derivative with an [Fe3(CO)12]-like structure: preparation and X-ray structure of [Ru3(µ-CO)2(CO)6{PPh(OMe)2}4] Michael I. Bruce, Janis G. Matisons, Jennifer M. Patrick, Allan H. White and Anthony C. Willis, pp 1223 DOI:10.1039/DT9850001223

Cluster chemistry. Part 32. Synthesis and X-ray crystal structure of [Ru5(µ5-2-C2PPh2-P)(µ-PPh2)(CO)13], a complex containing an alkynyl ligand in extended interaction with an open Ru5 cluster Michael I. Bruce, Michael L. Williams, Jennifer M. Patrick and Allan H. White, pp 1229 DOI:10.1039/DT9850001229

From diarylruthenium complexes to ortho-metallated ketones: a mechanistic and crystal structure study Zbigniew Dauter, Roger J. Mawby, Colin D. Reynolds and David R. Saunders, pp 1235 DOI:10.1039/DT9850001235

Crystal and molecular structures and magnetic properties of four new exchange-coupled copper(II) complexes derived from different 3-N,N-dialkylamino-1-propanols and pseudohalogens Leonhard Walz and Wolfgang Haase, pp 1243 DOI:10.1039/DT9850001243

Electrochemical and chemical properties of di-iodonitrosyl[tris(3,5-dimethylpyrazolyl)borato]molybdenum, [Mo{HB(Me2pz)3}(NO)I2], and related complexes T. Nigel Briggs, Christopher J. Jones, Jon A. McCleverty, Bryan D. Neaves, Nabil El Murr and Howard M. Colquhoun, pp 1249 DOI:10.1039/DT9850001249

Electron-transfer reactions in nitrogen fixation. Part 1. The electrosynthesis of dinitrogen, hydride, isocyanide, and carbonyl complexes of molybdenum: intermediates, mechanisms, and energetics Talib I. Al-Salih and Christopher J. Pickett, pp 1255 DOI:10.1039/DT9850001255

Synthesis, properties, and multinuclear nuclear magnetic resonance (1H, 77Se, and 195Pt) studies on diselenoether complexes of palladium, platinum, and rhodium David J. Gulliver, Eric G. Hope, William Levason, Stephen G. Murray and Gregory L. Marshall, pp 1265 DOI:10.1039/DT9850001265

Notes. The crystal structure of diaquadichlorodimethyltin(IV)-purine (1/4) Giovanni Valle, Gualtiero Plazzogna and Renato Ettorre, pp 1271 DOI:10.1039/DT9850001271

A tin-119 Mössbauer study of tin(II) fluoride Thomas Birchall, Georges Dénès, Krzysrtof Ruebenbauer and Jean Pannetier, pp 1275 DOI:10.1039/DT9850001275

Homo- and hetero-dinuclear hydride-bridged complexes containing cyclo-octadiene: the crystal and molecular structure of [(4-C8H12)Ir(µ-H)(µ-Cl)IrH2(PPh3)2] Gregory G. Hlatky, Brian F. G. Johnson, Jack Lewis and Paul R. Raithby, pp 1277 DOI:10.1039/DT9850001277

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500BX019

Issue 7

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FX021

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FP021

Mössbauer study of the cis-trans isomers of tin(IV) complexes. Some considerations about the sign of the electric-field gradient David Tudela, Vicente Fernández and Jesus D. Tornero, pp 1281 DOI:10.1039/DT9850001281

Characterization of the adducts formed by Cu(CN) and Cu(NCS) with biquinoline. The crystal structure of the polymeric cyano-compound containing both linear and tetrahedrally co-ordinated copper(I),[{Cu3(bq)2(CN)3}n] Giulia Dessy, Vincenzo Fares, Patrizia Imperatori and Giorgio O. Morpurgo, pp 1285 DOI:10.1039/DT9850001285

Crystal structures and interrelationships of the blue and green conformational isomers of tetrakis(trimethylarsine sulphide)cobalt(II) perchlorate Patricia C. Tellinghuisen, Ward T. Robinson and Cuthbert J. Wilkins, pp 1289 DOI:10.1039/DT9850001289

Fluorophosphine complexes of rhodium(I) and iridium(I): towards the design of systems with extended metal-metal interactions. The crystal structure of [{IrCl(PF3)2}2] Peter B. Hitchcock, Stephen Morton and John F. Nixon, pp 1295 DOI:10.1039/DT9850001295

Synthesis, structures, and reactivities of some pentamethylcyclopentadienyl-sulphur compounds Allen J. Bard, Alan H. Cowley, Jonathan K. Leland, Gillian J. N. Thomas, Nicholas C. Norman, Peter Jutzi, Christopher P. Morley and Edwald Schlüter, pp 1303 DOI:10.1039/DT9850001303

New carbide clusters in the cobalt sub-group. Part 15. Synthesis and crystallographic characterization of di-µ6-carbido-deca-µ-carbonyl-tridecacarbonyl-polyhedro-dodecarhodate(4-) as its tetrapropylammonium salt, [N(C3H7)4]4[Rh12C2(CO)23] Vincenzo G. Albano, Dario Braga, Donatella Strumolo, Claudio Seregni and Secondo Martinengo, pp 1309 DOI:10.1039/DT9850001309

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 33. Reactions of [W(CMe)(CO)2(-C5H5)] with the dimetal compounds [MRh(µ-CO)2(-C5Me5)2](M = Co or Rh); X-ray crystal structure of [Rh2W(µ-CO)(µ3-CMe)(CO)2(-C5H5)(-C5Me5)2] John C. Jeffery, Christine Marsden and F. Gordon A. Stone, pp 1315 DOI:10.1039/DT9850001315

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 34. Reactions of sulphur and selenium with the di-irontungsten complexes [Fe2W(µ3-CR)(µ-CO)(CO)8(-C5H5)](R = C6H4Me-4 or Me); crystal structures of [Fe2W(µ-CC6H4Me-4)(µ3-S)(CO)7(-C5H5)] and [Fe2W(µ3-SCMe)(CO)8(-C5H5)] Esther Delgado, Alan T. Emo, John C. Jeffery, Nicholas D. Simmons and F. Gordon A. Stone, pp 1323 DOI:10.1039/DT9850001323

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 35. The synthesis and crystal structures of the compounds [N(PPh3)2][W2{µ-C(H)C6H4Me-4}(CO)7(-C5H5)]·0.5 Et2O and [W{C(H)C6H4Me-4}(SnPh3)(CO)2(-C5H5)] Diane Hodgson, Judith A. K. Howard, F. Gordon A. Stone and Michael J. Went, pp 1331 DOI:10.1039/DT9850001331

Synthesis and properties of the divalent 1,2-bis(dimethylphosphino)ethane (dmpe) complexes MCl2(dmpe)2 and MMe2(dmpe)2(M = Ti, V, Cr, Mn, or Fe). X-Ray crystal structures of MCl2(dmpe)2(M = Ti, V, or Cr), MnBr2(dmpe)2, TiMe1.3Cl0.7(dmpe)2, and CrMe2(dmpe)2 Gregory S. Girolami, Geoffrey Wilkinson, Anita M. R. Galas, Mark Thornton-Pett and Michael B. Hursthouse, pp 1339 DOI:10.1039/DT9850001339

Reaction of bis(morpholinothiocarbonyl) disulphide with iodine. Existence of a 1 : 1 charge-transfer precursory adduct in an oxidation reaction. Isolation and crystal structure of bis[3,5-di(N-morpholinio)-1,2,4-trithiolane] hexadecaiodide Francesco Bigoli, Maria Angela Pellinghelli, Guido Crisponi, Paola Deplano and Emanuele Filiberto Trogu, pp 1349 DOI:10.1039/DT9850001349

The reaction of [Os3(µ-H)2(CO)9L](L = CO or PEt3) with dimethylcyanamide, Me2NCN: X-ray crystal structure of [Os3(µ-H)(µ-NCHNMe2)(CO)10] and the reactions of this complex with acids Jon Banford, Martin J. Mays and Paul R. Raithby, pp 1355 DOI:10.1039/DT9850001355

Studies of pendant-arm macrocyclic ligands. Part 4. Two penta-aza macrocycles based on 1-(2-dimethylaminoethyl)-1,5,9,13-tetra-azacyclohexadecane and its complexes with bivalent metal ions Nathaniel W. Alcock, Eirian H. Curzon, Peter Moore, Hadi A. A. Omar and Colin Pierpoint, pp 1361 DOI:10.1039/DT9850001361

Photochemistry of dicarbonyl(5-cyclopentadienyl)-methyl- and -ethyl-iron and -ruthenium complexes in solutions at -30 °C and in frozen gas matrices at 12 K Khalil A. Mahmoud, Antony J. Rest and Helmut G. Alt, pp 1365 DOI:10.1039/DT9850001365

Kinetic studies of oxidative dealkylation of alkylcobalamins by hexachloroplatinate(IV) Yueh-Tai Fanchiang, pp 1375 DOI:10.1039/DT9850001375

Self-association of organocobalamins in aqueous solution Joseph J. Pignatello and Yeuh-Tai Fanchiang, pp 1381 DOI:10.1039/DT9850001381

Gold(I) complexes of 1,2-ditertiary phosphino-o-carborane ligands: two-, three-, and four-co-ordination Salam Al-Baker, William E. Hill and Charles A. McAuliffe, pp 1387 DOI:10.1039/DT9850001387

Water photolysis. Part 1. The photolysis of co-ordinated water in [{MnL(H2O)}2][ClO4]2(L = dianion of tetradentate O2N2-donor Schiff bases). A model for the manganese site in photosystem II of green plant photosynthesis Fathy M. Ashmawy, Charles A. McAuliffe, R. V. (Dick) Parish and Joseph Tames, pp 1391 DOI:10.1039/DT9850001391

Bromine nuclear quadrupole resonance studies of some hexabromostannates: X-ray crystal structure of pyridinium hexabromostannate(IV), [Hpy]2[SnBr6] Keith B. Dillon, Joan Halfpenny and Andrew Marshall, pp 1399 DOI:10.1039/DT9850001399

Preparation of 1,3,2-dithiazolium hexafluoroarsenate(V), preparation and crystal structures of 5-methyl-1,3,2,4-dithiadiazolium and 4-methyl-1,3,2-dithiazolium hexafluoroarsenate(V) and the reduction of these salts to stable free radicals Gregory K. MacLean, Jack Passmore, M. N. Sudheedra Rao, Melbourne J. Schriver, Peter S. White, Donald Bethell, Roger S. Pilkington and Leslie H. Sutcliffe, pp 1405 DOI:10.1039/DT9850001405

Organotin biocides. Part 2. Variable-temperature 119Sn Mössbauer study of phenyl- and cyclohexyl-tin compounds Kieran C. Molloy and Kieran Quill, pp 1417 DOI:10.1039/DT9850001417

Macrocyclic polyphosphane ligands. Cobalt(II) and nickel(II) complexes of the and ? diastereoisomers of 4,7,13,16-tetraphenyl-4,7,13,16-tetraphospha-1,10-dithiacyclo-octadecane(L1) and the crystal structure of [Co(?-L1)][BPh4]2·EtOH Mario Ciampolini, Nicoletta Nardi, Pier Luigi Orioli, Stefano Mangani and Fabrizio Zanobini, pp 1425 DOI:10.1039/DT9850001425

Studies of phosphazenes. Part 22. High-field nuclear magnetic resonance investigation of novel isomeric oxophosphazadienes K. C. Kumara Swamy and Setharampattu S. Krishnamurthy, pp 1431 DOI:10.1039/DT9850001431

Reactions of bis(cyclopentadienyl)vanadium derivatives with nitrogen mono-oxide and the crystal structure of an oxo-bridged nitrosyl complex of vanadium Frank Bottomley, James Darkwa and Peter S. White, pp 1435 DOI:10.1039/DT9850001435

Spectroscopic studies on the higher binary fluorides of chromium: CrF4, CrF5, and CrF6, both in the solid state and isolated in inert gas matrices Eric G. Hope, Peter J. Jones, William Levason, J. Steven Ogden, Mahmoud Tajik and Jeremy W. Turff, pp 1443 DOI:10.1039/DT9850001443

Some water-soluble Schiff-base complexes of nickel(II): the role of water Dennis F. Evans and Paul H. Missen, pp 1451 DOI:10.1039/DT9850001451

Magnetic exchange interactions in perovskite solid solutions. Part 5. The unusual defect structure of SrFeO3 -y Terence C. Gibb, pp 1455 DOI:10.1039/DT9850001455

Compartmental ligands. Part 11. Copper(II) complexes of half-unit Schiff bases: crystal and molecular structure of one monomeric and of one dimeric complex Neil A. Bailey, David E. Fenton, John R. Tate and Peter M. Thomas, pp 1471 DOI:10.1039/DT9850001471

Bimetallic cyano-bridged cations: preparation and hydride reduction of [(5-C5H5)L2Ru(µ-CN)ML2(5-C5H5)]PF6[L2,L2=(PPh3)2,Ph2PCH2CH2PPh2; M = Ru or Fe]. Formation of [Ru(5-C5H5)(PPh3)H3] and X-ray crystal structure of [(5-C5H5)(Ph2PCH2CH2PPh2)Ru(µ-CN)Ru(PPh3)2(5-C5H5)]PF6 Gordon J. Baird, Stephen G. Davies, Steven D. Moon, Stephen J. Simpson and Richard H. Jones, pp 1479 DOI:10.1039/DT9850001479

Benzamidinatorhodium complexes. X-Ray structures of [Rh{CPh(NPh)2}(cod)] and [Rh2{µ-CPh(NPh)2}2(tfbb)2] Fernando J. Lahoz, Antonio Tiripicchio, Marisa Tiripicchio Camellini, Luis A. Oro and M. Teresa Pinillos, pp 1487 DOI:10.1039/DT9850001487

Steric changes at labelled NH2 sites during the base-catalysed ammoniation of the trans-azido(dimethyl sulphoxide)bis(ethylenediamine)cobalt(III) ion Sijbe Bait and Hendrikus J. Gamelkoorn, pp 1495 DOI:10.1039/DT9850001495

Synthetic and nuclear magnetic resonance studies on dialkyl- and diaryl-platinum complexes containing chelating, monodentate, or bridging Ph2PCH2PPh2 ligands Fatma S. M. Hassan, David M. McEwan, Paul G. Pringle and Bernard L. Shaw, pp 1501 DOI:10.1039/DT9850001501

Reactivity of the unsaturated anion decacarbonyltetra-µ-hydrido-tri-rhenate(1-) toward phenols. Crystal and molecular structures of the tetraethylammonium salts of the triangular cluster anion [Re3(µ-H)3(µ-OC6F5)(CO)10]- and of the binuclear anion [Re2(µ-OC6H5)3(CO)6]- Tiziana Beringhelli, Gianfranco Ciani, Giuseppe D'alfonso, Angelo Sironi and Maria Freni, pp 1507 DOI:10.1039/DT9850001507

Dismutation of superoxide ion in an aprotic solvent by 5,10,15,20-tetra-p-tolylporphyrinatocobalt(II) Toshihiko Ozawa and Akira Hanaki, pp 1513 DOI:10.1039/DT9850001513

Mono- and di-nuclear rhodium and palladium complexes of macrocyclic ligands containing the 2,6-di(thiomethyl)pyridine sub-unit David Parker, Jean-Marie Lehn and John Rimmer, pp 1517 DOI:10.1039/DT9850001517

Preparation and properties of cis-[W(N2)2(Ph2PCH2PPh2)2] and trans-[M(N2)2(Ph2PCHCHPPh2)2](M = Mo or W), and the crystal structure of cis-[W(N2)2(PMe2Ph)4] Hengameh Dadkhah, Jonathan R. Dilworth, Kevin Fairman, Chi Tat Kan, Raymond L. Richards and David L. Hughes, pp 1523 DOI:10.1039/DT9850001523

Notes. Synthesis and structural studies of some 1,1-dichloroferrocene derivatives of platinum(II). Crystal and molecular structure of 2,2-µ-[(1-2,5-6--cis,cis-cyclo-octa-1,5-diene)platinio]-bis(1,1-dichloroferrocene) Ronald E. Hollands, Anthony G. Osborne, Richard H. Whiteley and Christine J. Cardin, pp 1527 DOI:10.1039/DT9850001527

Additions and corrections Nevenka Brnievi, iva Rui-Toro and Biserka Koji-Prodi, pp 1531 DOI:10.1039/DT9850001531

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500BX023

Issue 8

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FX025

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FP025

Rhenium nitrosyl complexes with simple and with sterically demanding aromatic thiolate ligands: X-ray crystal structures of [PPh4][Re2(SC6H4Me-4)7(NO)2]·CH2Cl2 and [Re(SC6H3Pri2-2,6)4(NO)] Philip J. Blower, Jonathan R. Dilworth, John P. Hutchinson and Jon A. Zubieta, pp 1533 DOI:10.1039/DT9850001533

Reactions of metal ions with triketones in solution. Part 1. Formation constants for the systems of heptane-2,4,6-trione, 1-phenylhexane-1,3,5-trione, 1,5-diphenylpentane-1,3,5-trione, and 2,2-dihydroxybenzophenone with proton, nickel(II), and cobalt(II) Michael J. Hynes and James Walsh, pp 1543 DOI:10.1039/DT9850001543

Mass spectrometric studies on cyclo- and poly-phosphazenes. Part 2. Oligomerization of hexa(aryloxy)cyclotriphosphazatrienes Mario Gleria, Guido Audisio, Sergio Daolio, Pietro Traldi and Enrico Vecchi, pp 1547 DOI:10.1039/DT9850001547

The syntheses and characterisation of, and the determination of 1J(103Rh-103Rh) in [(5-C5Me5)2Rh2(µ-CH2)2{µ-CH2CR(CH2CRCH2)CH2}](R = H or Me) and [(5-C5Me5)2Rh2(µ-CH2)2{µ-Ph2P(CH2)nPPh2}]2+(n= 1 or 2) Brian E. Mann, Neil J. Meanwell, Catriona M. Spencer, Brian F. Taylor and Peter M. Maitlis, pp 1555 DOI:10.1039/DT9850001555

Pyramidal inversions and 1,2-metal shifts in pentacarbonyl-chromium, -molybdenum, and -tungsten derivatives of dialkyl disulphides and dialkyl diselenides. A nuclear magnetic resonance investigation Edward W. Abel, Suresh K. Bhargava, Pramod K. Mittal, Keith G. Orrell and Vladimir ik, pp 1561 DOI:10.1039/DT9850001561

Dynamic nuclear magnetic resonance study of Group 6 metal pentacarbonyl complexes. Pyramidal inversion and 1,2-metal shifts in the complexes [M(CO)5(Me2CCH2EECH2)](M = Cr, Mo, or W; E = S or Se) Edward W. Abel, Pramod K. Mittal, Keith G. Orrell and Vladimir ik, pp 1569 DOI:10.1039/DT9850001569

Synthesis of bis[µ-bis(diphenylphosphino)methane]-tri-µ-carbonyl-tricarbonyl-triangulo-trirhodium(1+) perchlorate, [Rh3(CO)3(µ-CO)3(µ-dppm)2]ClO4. An unusual 46-electron cluster possessing the A-frame structure with a bridging Rh(CO)3 fragment Samitha P. Deraniyagala and Kevin R. Grundy, pp 1577 DOI:10.1039/DT9850001577

Studies on cyclic bis(5 : -2-cyclopentadienylidene-ethyl)- and bis(5 : -4-cyclopentadienylidenebutyl)-molybdenum compounds Malcolm L. H. Green and Dermot O'Hare, pp 1585 DOI:10.1039/DT9850001585

Oxygenation studies. Part 7. Catalytic dioxygenation of cyclo-octa-1,5-diene at a rhodium centre Gordon Read and Miguel Urgelles, pp 1591 DOI:10.1039/DT9850001591

Structure and solvation of mercury(II) iodide, bromide, and chloride in pyridine solution; refinement of the crystal structure of di-iodobis(pyridine)mercury(II), [HgI2(py)2] Ingmar Persson, Magnus Sandström, Peter L. Goggin and Alain Mosset, pp 1597 DOI:10.1039/DT9850001597

Potentiometric study of the complex-formation equilibria of manganese(II), cobalt(II), nickel(II), copper(II), and zinc(II) with ethylenediamine-N-acetic acid Enrico Leporati, pp 1605 DOI:10.1039/DT9850001605

Addition of proton and boron trifluoride at terminal and bridging cyano-ligands in dinuclear manganese compounds Antony J. Deeming and Susan Donovan-Mtunzi, pp 1609 DOI:10.1039/DT9850001609

The chemistry of vitamin B12. Part 25. Mechanism of the -elimination of olefins from alkylcorrinoids; evidence for an initial homolytic fission of the Co-C bond David A. Baldwin, Eric A. Betterton, Susan M. Chemaly and John M. Pratt, pp 1613 DOI:10.1039/DT9850001613

The chemistry of vitamin B12. Part 26. Co-ordination of the malonitrile anion by CoIII corrinoids: first experimental determination of equilibrium constants for the co-ordination of a tetrahedral carbanion by a transition-metal ion Eric A. Betterton, Susan M. Chemaly and John M. Pratt, pp 1619 DOI:10.1039/DT9850001619

The preparation and crystal structure of ()6SbF3·5SbF5 W. A. Shantha Nandana, Jack Passmore and Peter S. White, pp 1623 DOI:10.1039/DT9850001623

Synthesis and crystal structure of the layer compound Sb3TeO6Cl José Antonio Alonso, Enrique Gutiérrez-Puebla, Antonio Jerez, Angeles Monge and Caridad Ruiz-Valero, pp 1633 DOI:10.1039/DT9850001633

A theoretical study of three-centre M-H-C interactions Noel J. Fitzpatrick and Michael A. McGinn, pp 1637 DOI:10.1039/DT9850001637

Studies of 2,5;6,10;8,10-tri-µ-hydro-nonahydro-nido-nonaborate(1-), [B9H12]-: preparation, crystal and molecular structure, nuclear magnetic resonance spectra, electrochemistry, and reactions Grant B. Jacobsen, Dominic G. Meina, John H. Morris, Colin Thomson, Steven J. Andrews, David Reed, Alan J. Welch and Donald F. Gaines, pp 1645 DOI:10.1039/DT9850001645

The concentration and selective extraction of copper(II) rhodium(III), and iridium(III) using a copolymer functionalised with dithiocarbamate groups. Spectroscopic evidence for the nature of the binding sites Arthur F. Ellis, Michael J. Hudson and Anthony A. G. Tomlinson, pp 1655 DOI:10.1039/DT9850001655

Geometry-dependent carbon-13 chemical shifts in (6-[2.2]cyclophane)(5-cyclopentadienyl)iron(II) hexafluorophosphates Nobuo Mori and Michiko Takamori, pp 1661 DOI:10.1039/DT9850001661

Kinetics and mechanism of the reductions of tris(oxalato)cobaitate(III) ion by ruthenium(II) species in aqueous solution Josephine O. Ehighaokhuo, J. Folorunso Ojo and Olusegun Olubuyide, pp 1665 DOI:10.1039/DT9850001665

Oxidation of thiourea by iodate: a new type of oligo-oscillatory reaction Gyula Rábai and Mihály T. Beck, pp 1669 DOI:10.1039/DT9850001669

Preparation and vibrational spectra of [OsX6]3-(X = Cl, Br, or I) and of other platinum-group hexahalogeno-complexes Nicholas J. Campbell, Vivienne A. Davis, William P. Griffith and Timothy J. Townend, pp 1673 DOI:10.1039/DT9850001673

Bimetallic systems. Part 11. Heterobimetallic and unsymmetrical diplatinum complexes from cis-[PtR2(dppm-P)2](dppm Å Ph2PCH2PPh2; R = Me, 1 -naphthyl, or C6H4Me-o): crystal structure of [(C6H4Me-o)2Pt(µ-dppm)2PtMe2] Alan T. Hutton, Paul G. Pringle and Bernard L. Shaw, pp 1677 DOI:10.1039/DT9850001677

Kinetics and mechanism of the oxidation of substituted malonic acids by the hexachloroiridate(IV) ion Giuseppe Calvaruso, Antonio I. Carbone and F. Paolo Cavasino, pp 1683 DOI:10.1039/DT9850001683

Contributions to the chemistry of boron. Part 160. A convenient synthesis of catecholatoborane and diborane Detlef Männig and Heinrich Nöth, pp 1689 DOI:10.1039/DT9850001689

Synthesis and structural characterisation of some triangulo-platinum clusters containing lsocyanide ligands Clive E. Briant, David I. Gilmour, D. Michael P. Mingos and Robert W. M. Wardle, pp 1693 DOI:10.1039/DT9850001693

Transition-metal co-ordination compounds of a novel aniline-based pyrazole derivative. X-Ray crystal structures of [NN-bis(3,5-dimethylpyrazol-1-ylmethyl) aminobenzene]-dichlorocobalt(II) and -dibromocopper(II) Henk L. Blonk, Willem L. Driessen and Jan Reedijk, pp 1699 DOI:10.1039/DT9850001699

Intermediates in the photochemical reaction of tetraphosphorus trisulphide with organic disulphides; phosphorus-31 nuclear magnetic resonance parameters for 2,6-bis(alkylthio)- and 2,6-di-iodo-3,5,7-trithia-1,2,4,6- tetraphosphabicyclo[2.2.1]heptanes and for 3,6-bis(alkylthio)-2,5,7-trithia- 1,3,4,6-tetraphosphabicyclo[2.2.1] heptanes Bruce W. Tattershall, pp 1707 DOI:10.1039/DT9850001707

Formation of oxidized molybdenum-bearing ferrites, Fe2.95 -xMoxO4(x = 0.03-0.30) in aqueous suspensions by air oxidation, and valence state of molybdenum Haruhiko Furukawa, Tadao Kanzaki and Takashi Katsura, pp 1713 DOI:10.1039/DT9850001713

Notes. Electron spin resonance parameters for some copper(II)-bis(amino-acid) complexes Bernard A. Goodman and Donald B. McPhail, pp 1717 DOI:10.1039/DT9850001717

Cyclopalladated derivatives of 2,4-bipyridine Edwin C. Constable, pp 1719 DOI:10.1039/DT9850001719

Studies on the regioselective preparation of tricarbonyl(cyclohexadienyl)iron(1+) salts Hilary Curtis, Brian F. G. Johnson and G. Richard Stephenson, pp 1723 DOI:10.1039/DT9850001723

Iodine-127 Mössbauer spectroscopy of copper(I) iodide-phosphine adducts Raymond J. Batchelor and Thomas Birchall, pp 1727 DOI:10.1039/DT9850001727

Copper(II) salts of metal dithiolates Geoffrey E. Holdcroft and Allan E. Underhill, pp 1731 DOI:10.1039/DT9850001731

A new reaction of nitrosyl complexes; one-electron reduction of trans-[MX(NO)L4]2+[M = Ru or Fe, X = Cl or Br, L = pyridine or o-phenylenebis(dimethylarsine)] with hydroxylamine Kimitake Aoyagi, Masao Mukaida, Hidetake Kakihana and Kunio Shimizu, pp 1733 DOI:10.1039/DT9850001733

Synthesis and properties of alkali-metal tetraoxo-osmate(VII) compounds William Levason, Mahmoud Tajik and Michael Webster, pp 1735 DOI:10.1039/DT9850001735

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500BX027

Issue 9

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FX029

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FP029

Crystalline zirconium(IV) hydrogenarsenate hydrogenphosphate monohydrate: synthesis, ion-exchange properties, and thermal behaviour Maria L. Berardelli, Paola Galli, Aldo. La Ginestra, Maria A. Massucci and Krishna G. Varshney, pp 1737 DOI:10.1039/DT9850001737

Sila-pharmaca. Part 32. Crystal and molecular structures of the (R)-enantiomer and the racemate of the antimuscarinic agent (cyclohexyl)phenyl[2-(pyrrolidin-1-yl)ethyl]silanol (sila-procyclidine) William S. Sheldrick, Haryanto Linoh, Reinhold Tacke, Günter Lambrecht, Ulrich Moser and Ernst Mutschler, pp 1743 DOI:10.1039/DT9850001743

Axially asymmetric metal alkyls. Part 3. Chemical, electrochemical, and structural studies of Group 5A d0,1,2 metallepines [M{(2-CH2C6H4)2}(-C5H5)2]z(M = Nb or Ta; z=1-, 0, or 1+); synthesis of [Nb{2-CH2(C6H4)2Me-2}X(-C5H5)2](X = Cl or CO) and [{(-C5H5)2ClV}2{(2-CH2C6H4)2}], and electrochemistry of [M(CH2Ph)2 -nCln(-C5H5)2](n= 0, M = Nb, or Ta; n= 1, M = V) Stuart I. Bailey, Lutz M. Engelhardt, Wing-Por Leung, Colin L. Raston, Ian M. Ritchie and Allan H. White, pp 1747 DOI:10.1039/DT9850001747

Beryllocene: a microwave dielectric loss study Stephen J. Pratten, Mervyn K. Cooper, Manuel J. Aroney and Stephen W. Filipczuk, pp 1761 DOI:10.1039/DT9850001761

Photoelectron spectra of the aminodifluoroboranes NH2BF2, NHMeBF2, and NMe2BF2 Harold W. Kroto and Donald McNaughton, pp 1767 DOI:10.1039/DT9850001767

The structure of a dinuclear copper(I) complex of a Schiff-base ligand containing a copper-copper bond Michael G. B. Drew, Aidan Lavery, Vickie McKee and S. Martin Nelson, pp 1771 DOI:10.1039/DT9850001771

Dirhodium(II,II) tetra-acetate complexes with axially co-ordinated triphenylstibine, triphenylarsine, and dibenzyl sulphide ligands. The syntheses, properties, and X-ray crystal structures of [Rh2(O2CMe)4(SbPh3)2], [Rh2(O2CMe)4(AsPh3)2], and [Rh2(O2CMe)4{S(CH2Ph)2}2] Robin J. H. Clark, Andrew J. Hempleman, Helen M. Dawes, Michael B. Hursthouse and Colin D. Flint, pp 1775 DOI:10.1039/DT9850001775

Magnetic circular dichroism spectra of tris-chelate complexes of 2,2-bipyridyl and 1,10-phenanthroline with iron(II), ruthenium(II), and osmium(II) at 4.2 K Andrew J. Thomson, Vladimir Skarda, Michael J. Cook and David J. Robbins, pp 1781 DOI:10.1039/DT9850001781

The kinetics and stoicheiometry of silver(III) reduction by the octacyano-complexes of molybdenum(IV) and tungsten(IV) Edward T. Borish, Louis J. Kirschenbaum and Edoardo Mentasti, pp 1789 DOI:10.1039/DT9850001789

Reactions of some decaosmium clusters with electrophilic and nucleophilic reagents: X-ray structure analyses of [N(PPh3)2][Os10C(CO)24(µ-I)], [Os10C(CO)24(µ-I)2], [N(PPh3)2]2[Os10C(CO)22(NO)I], [Os10C(CO)23{P(OMe)3}(µ-I)2] and of two isomers of [Os10C(CO)21{P(OMe)3}4] Robert J. Goudsmit, Peter F. Jackson, Brian F. G. Johnson, Jack Lewis, William J. H. Nelson, José Puga, Maria D. Vargas, Dario Braga, Kim Henrick, Mary McPartlin and Angelo Sironi, pp 1795 DOI:10.1039/DT9850001795

Studies of gold cluster compounds using high-resolution 31P solid-state nuclear magnetic resonance spectroscopy Nigel J. Clayden, Christopher M. Dobson, Kevin P. Hall, D. Michael P. Mingos and Deborah J. Smith, pp 1811 DOI:10.1039/DT9850001811

Reactions of hydride reagents with alkylmolybdenum carbonyl complexes. Reaction of LiBHEt3 with [MoMe(CO)3(-C5H5)], formation of an anionic acetaldehyde complex, and a stoicheiometric cycle for the synthesis of acetaldehyde J. Trevor Gauntlett, Brian F. Taylor and Mark J. Winter, pp 1815 DOI:10.1039/DT9850001815

High-co-ordination-number compounds of niobium and tantalum: reactions of niobium and tantalum halides and sulphide-halides with sodium diethyldithiocarbamate. The crystal structures of [Nb(S2CNEt2)4]Br, Nb(S2CNEt2)3S, and Ta(S2CNEt2)3(S2) Michael G. B. Drew, David A. Rice and David M. Williams, pp 1821 DOI:10.1039/DT9850001821

Studies in the flexibility of macrocycle ligands. Calculation of macrocycle cavity size by force-field methods. Crystal and molecular structures of [CoLCl][ClO4]2 and [CuL][PF6]2{L = 2,13-dimethyl-3,6,9,12,18-penta-azabicyclo[12.3.1]octadeca-1(18),14,16-triene} Michael G. B. Drew, (the late) Stephen Hollis and Paul C. Yates, pp 1829 DOI:10.1039/DT9850001829

Reaction between [Ru3(CO)12] and the tridentate phosphine ligand HC(PPh2)3; X-ray crystal structures of complexes [Ru3(CO)9{Ph2PCHP(Ph)C6H4PPh}], [Ru2H(CO)4(Ph2PCHPPh2){PhPC6H4C(O)}], and [Ru2(CO)4Cl(PPh2)(dppm)] Jennifer A. Clucas, Majorie M. Harding, Barry S. Nicholls and Anthony K. Smith, pp 1835 DOI:10.1039/DT9850001835

The crystal and molecular structure of [1,1,1,1-(CO)H(PPh3)2-arachno-1-IrB3H7] and some bonding considerations in arachno-type four-vertex metal -allyl and borallyl clusters Jonathan Bould, Norman N. Greenwood, John D. Kennedy and Walter S. McDonald, pp 1843 DOI:10.1039/DT9850001843

Equilibria between mono- and bi-nuclear complexes in Cu(O2CMe)2-pyridine derivative-diluent systems. The influence of the amine ligand basicity Maria Szpakowska, Irmina Uruska and Jan Zielkiewicz, pp 1849 DOI:10.1039/DT9850001849

Thermodynamics of the actinoid elements. Part 6. The preparation and heats of formation of some sodium uranates(VI) Tze Chung Tso, David Brown, Austin I. Judge, John H. Holloway and Jean Fuger, pp 1853 DOI:10.1039/DT9850001853

The chemistry and catalytic properties of ruthenium and osmium complexes. Part 1. Homogeneous catalysis of organic reactions by bromo(carbonyl)hydridotris(triphenylphosphine)osmium(II) Roberto A. Sánchez-Delgado, Antida Andriollo, Edgar González, Norma Valencia, Vladimir León and Jouseff Espidel, pp 1859 DOI:10.1039/DT9850001859

Thermodynamic treatment of exchange of H+ and K+ in -titanium phosphate Carmen G. Guarido, Marta Suárez, José R. García and Julio Rodríguez, pp 1865 DOI:10.1039/DT9850001865

Fundamental vibrations of six- and seven-membered selenium sulphide ring molecules Risto Laitinen, Ralf Steudel and Eva-Maria Strauss, pp 1869 DOI:10.1039/DT9850001869

The stability of nickel(II) complexes of tetra-aza macrocycles Vivienne J. Thöm and Robert D. Hancock, pp 1877 DOI:10.1039/DT9850001877

Studies of phosphazenes. Part 25. Synthesis, nuclear magnetic resonance spectroscopy, and mode of formation of (aziridino)(triphenylphosphazenyl)cyclotriphosphazenes. X-Ray crystal structure and enzyme-inhibiting activity of N3P3(NPPh3)(NC2H4)5 K. C. Kumara Swamy, M. Damodara Poojary, Setharampattu S. Krishnamurthy and Hattikudur Manohar, pp 1881 DOI:10.1039/DT9850001881

1H-Pyrrolo[2,3-b]pyridine (HL) ligands in rhodium(I) and iridium(I) chemistry. Crystal and molecular structures of [Rh2(µ-L)2(nbd)2] and [Rh4(µ-Cl)2(µ-L)2(µ-CO)2(CO)2(nbd)2] Luis A. Oro, Miguel A. Ciriano, B. Eva Villarroya, Antonio Tiripicchio and Fernando J. Lahoz, pp 1891 DOI:10.1039/DT9850001891

Carbon-13 nuclear magnetic resonance evidence of a relaxation process dominated by scalar coupling with a quadrupolar nucleus in [Re3(µ-H)4(CO)10]- Tiziana Beringhelli, Henriette Molinari and Annalisa Pastore, pp 1899 DOI:10.1039/DT9850001899

Bis(triphenylphosphine)copper(I) derivatives of substituted arachno nine-vertex borane anions, Cu(PPh3)2(B9H13X)(X = H, NCS, NCSe, NCBPh3, NCBH3, or NCBH2NCBH3) Dominic G. Meina and John H. Morris, pp 1903 DOI:10.1039/DT9850001903

Magnetic behaviour of tetrakis[(2-diethylaminoethanolato)isocyanatocopper(II)], a complex with an antiferromagnetic ground state; the crystal and molecular structure of the triclinic modification Ludwig Schwabe and Wolfgang Haase, pp 1909 DOI:10.1039/DT9850001909

Structure and relative energies of some nitrogen-containing radical cations by MNDO calculation Minh Tho Nguyen, Anthony F. Hegarty and Paul Brint, pp 1915 DOI:10.1039/DT9850001915

Synthesis, characterization and acid hydrolysis of [N,N-bis(2-aminoethyl)-1,2-ethanediamine]bis(solvent)cobalt(III) complexes Neville J. Curtis and Geoffrey A. Lawrance, pp 1923 DOI:10.1039/DT9850001923

Complexes of organoaluminium compounds. Part 13. Preparation and nuclear magnetic resonance spectra of the arylamido-compounds AlMe2(NHR)(R= Ph, C6H4Me-o, C6H4Me-p, C6H3Me2-2,6) and the imido-compounds AlMe(NR). Crystal and molecular structures of [{AlMe2(NHC6H4Me-o)}2] and [{AlMe(NPh)}6] Abdul-Aziz I. Al-Wassil, Peter B. Hitchcock, Serap Sarisaban, J. David Smith and Christina L. Wilson, pp 1929 DOI:10.1039/DT9850001929

Organic chemistry of dinuclear metal centres. Part 8. Organo-iron-ruthenium chemistry. X-Ray structure of trans-[FeRu(CO)2(µ-CO)2(-C5H5)2] Benjamin P. Gracey, Selby A. R. Knox, Kirsty A. Macpherson, A. Guy Orpen and Stephen R. Stobart, pp 1935 DOI:10.1039/DT9850001935

Crystal structures and magnetic properties of binuclear five-co-ordinate copper(II) complexes with a phenolate bridge and their catalytic functions in multielectron redox reactions Yuzo Nishida, Hiroyuki Shimo, Hiroaki Maehara and Sigeo Kida, pp 1945 DOI:10.1039/DT9850001945

Oxygen exchange and protonation of polyanions: a multinuclear magnetic resonance study of tetradecavanadophosphate(9-) and decavanadate(6-) Aidan T. Harrison and Oliver W. Howarth, pp 1953 DOI:10.1039/DT9850001953

New photoreduction catalysis by [Cu(N-N)(PPh3)2]+(N-N = 2,9-dimethyl-1,10-phenanthroline or 4,4,6,6-tetramethyl-2,2-bipyridine) and its application to cobalt(III) complexes Shigeyoshi Sakaki, Genji Koga, Fumio Sato and Katsutoshi Ohkubo, pp 1959 DOI:10.1039/DT9850001959

Sulphur-containing metal complexes. Part 14. Reactions of carbene anions with carbon disulphide or carbon diselenide Helgard G. Raubenheimer, Gert J. Kruger and Hendrik W. Viljoen, pp 1963 DOI:10.1039/DT9850001963

The hydrolysis of metal ions. Part 8. Aluminium(III) Paul L. Brown, Ronald N. Sylva, Graeme E. Batley and John Ellis, pp 1967 DOI:10.1039/DT9850001967

Notes. The easy catalytic reduction of HClO4, HNO3, and H5IO6 by CO in the presence of [Pd3(O2CMe)6] Renato Ugo, Anna Chiesa and Anatoli Yatsimirski, pp 1971 DOI:10.1039/DT9850001971

The peroxodisulphate-hexacyanoferrate(II) reaction. Reactivity and ionic association in isodielectric water-co-solvent mixtures Joaquin Baños, Francisco Sánchez-Burgos and M. Carmen Carmona-Guzmán, pp 1975 DOI:10.1039/DT9850001975

Isolation and crystal structure of [Rh(PPh3)3(MeCN)][BF4], acetonitriletris(triphenylphosphine)rhodium(I) tetrafluoroborate Gillian Pimblett, C. David Garner and William Clegg, pp 1977 DOI:10.1039/DT9850001977

Reactivity of [PPh4][Fe2(CO)6{µ-CPhCPhC(CF3)C(CF3)H}] toward electrophiles. X-Ray structure of [Fe2(CO)6{µ-CPhCPhC(CF3)CHC(OEt)2}], a product resulting from fluorine abstraction at a CF3 group and subsequent fluorine substitution by ethoxy-groups Josep Ros, Xavier Solans, Carles Miravitlles and René Mathieu, pp 1981 DOI:10.1039/DT9850001981

Synthesis and characterisation of uranium(IV) nitrate complexes with piperazines Baldev Singh Manhas and Arun Kumar Trikha, pp 1985 DOI:10.1039/DT9850001985

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500BX031

Issue 10

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FX033

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FP033

New carbonyl derivatives of niobium(I) and tantalum(I) Fausto Calderazzo, Manola Castellani, Guido Pampaloni and Pier Francesco Zanazzi, pp 1989 DOI:10.1039/DT9850001989

Routes of formation and crystal structure of an alkylperoxycobaloxime: bis[dimethylglyoximato(1-)](4-ethoxycarbonylbut-3-en-2-ylperoxo)(pyridine)cobalt(III) Nathaniel W. Alcock, Bernard T. Golding and Samson Mwesigye-Kibende, pp 1997 DOI:10.1039/DT9850001997

Chemistry of di-and tri-metal complexes with bridging carbene or carbyne ligands. Part 36. Reactions of the dimetal compounds [ReM(CC6H4Me-4)(CO)9](M = Cr, Mo, or W) with octacarbonyldicobalt; crystal structures of [Co2WRe(µ3-CC6H4Me-4)(CO)15] and [Co2Re(µ3-CC6H4Me-4)(CO)10] John C. Jeffery, Diane B. Lewis, Gregg E. Lewis and F. Gordon A. Stone, pp 2001 DOI:10.1039/DT9850002001

Chemistry of di-and tri-metal complexes with bridging carbene or carbyne ligands. Part 37. Methylene group transfer to carbon-metal multiple bonds; crystal structures of [TiW{µ-C(C6H4Me-4)Ch2}(µ-CO)(CO)(-C5H5)3] and [PtW{µ-C(C6H4Me-4)CH2}(CO)2(PMe3)2(-C5H5)] M. Rasol Awang, Robert D. Barr, Michael Green, Judith A. K. Howard, Todd B. Marder and F. Gordon A. Stone, pp 2009 DOI:10.1039/DT9850002009

Chemistry of di-and tri-metal complexes with bridging carbene or carbyne ligands. Part 38. Ruthenium-tungsten compounds: crystal structures of [RuW-(µ-Cl)(µ-CMe)(Cl)(CO)2(PPh3)2(-C5H5)] and [RuW2(µ3-C2Me2)(CO)7(-C5H5)2] Judith A. K. Howard, Jill C. V. Laurie, Owen Johnson and F. Gordon A. Stone, pp 2017 DOI:10.1039/DT9850002017

Trimethylphosphine as a reactive solvent: synthesis, crystal structures, and reactions of [Ta(PMe3)3(2-CH2PMe2)(2-CHPMe2)] and [W(PMe3)4(2-CH2PMe2)H] and related studies Vernon C. Gibson, Christof E. Graimann, Philip M. Hare, Malcolm L. H. Green, Judith A. Bandy, Peter D. Grebenik and Keith Prout, pp 2025 DOI:10.1039/DT9850002025

Synthesis, structure, and bonding of fulvene complexes of titanium, molybdenum, and tungsten Judith A. Bandy, Victor S. B. Mtetwa, Keith Prout, Jennifer C. Green, Cathryn E. Davies, Malcolm L. H. Green, Nicholas J. Hazel, Alejandro Izquierdo and Jesus J. Martin-Polo, pp 2037 DOI:10.1039/DT9850002037

Metal complexes of vitamin B6 related compounds. Crystal and molecular structures of aqua(5-phosphopyridoxylideneglycinato)copper(II) trihydrate and bis(pyridoxylideneglycinato)nickel(II) hexahydrate S. P. Sudhakara Rao, Hattikudur Manohar and Robert Bau, pp 2051 DOI:10.1039/DT9850002051

The mechanisms of the reactions between hydrido-complexes and diazonium salts. Part 1. The reactions of trans-[PtH(Cl)(PEt3)2] Victoria L. Frost and Richard A. Henderson, pp 2059 DOI:10.1039/DT9850002059

The mechanisms of the reactions between hydrido-complexes and diazonium salts. Part 2. The reactions of cis,mer-[RhHCl2(PEtPh2)3] Richard A. Henderson, pp 2067 DOI:10.1039/DT9850002067

Preparation and properties of mer-[ReCl(N2)(CNR){P(OMe)3}3](R = Me, Et, But, C6H4Me-4, or C6H4Cl-4) and [ReCl(N2)(CNMe)(PPh3){P(OEt)3}2]. X-Ray crystal structure of mer-[ReCl(N2)(CNMe){P(OMe)3}3] and reductive cleavage of the lsocyanide ligands to primary amines upon protonation M. Fernanda N. N. Carvalho, Armando J. L. Pombeiro, Ulrich Schubert, Olli Orama, Christopher J. Pickett and Raymond L. Richards, pp 2079 DOI:10.1039/DT9850002079

Synthesis and characterization of some chromium(III) complexes with glutathione Mohammed Abdullah, Jack Barrett and Paul O'Brien, pp 2085 DOI:10.1039/DT9850002085

The preparation of trichloro(phenyl 2-pyridylmethyl sulphoxide)gold(III) and the kinetics and equilibria of its formation and subsequent reactions Lucio Cattalini, Gavino Chessa, Giampaolo Marangoni, Bruno Pitteri and Martin L. Tobe, pp 2091 DOI:10.1039/DT9850002091

X-Ray crystal structures and magnetic properties of azide-bridged binuclear copper(II) complexes containing the Schiff-base ligand derived from 2-pyridinecarbaldehyde and histamine. Structure-magnetism relationship Keiji Matsumoto, Shun'ichiro Ooi, Kunio Nakatsuka, Wasuke Mori, Shinnichiro Suzuki, Akitsugu Nakahara and Yasuo Nakao, pp 2095 DOI:10.1039/DT9850002095

Complexes of the platinum metals. Part 29. Pyridine-2-thiolate derivatives of ruthenium and osmium: X-ray crystal structures of [Ru(C5H4NS)2(CO)2(PPh3)] and [Ru(C5H4NS)2(CO)(PPh3)] Pasquale Mura, Bruce G. Olby and Stephen D. Robinson, pp 2101 DOI:10.1039/DT9850002101

Complexes of the platinum metals. Part 30. Fragmentation reactions of rhodium and iridium trichloro-and tribromo-acetates Esther B. Boyar and Stephen D. Robinson, pp 2113 DOI:10.1039/DT9850002113

Bimetallic systems. Part 12. Mixed rhodium(I)-platinum(II) acetylide complexes containing bridging Ph2PCH2PPh2. Crystal structures of [(MeCC)Pt(µ-dppm)2(,-CCMe)Rh(CO)]PF6 and of [ClPt(µ-dppm)2(,-CCMe)Rh(CO)]PF6 Alan T. Hutton, C. Richard Langrick, David M. McEwan, Paul G. Pringle and Bernard L. Shaw, pp 2121 DOI:10.1039/DT9850002121

Bimetallic systems. Part 13. Platinum-manganese carbonyl complexes containing bridging Ph2PCH2PPh2(dppm) ligands: crystal structure of [(OC)3Mn(µ-dppm)2PtH(Br)]BF4 Stuart W. Carr, Bernard L. Shaw and Mark Thornton-Pett, pp 2131 DOI:10.1039/DT9850002131

Reactions of tris[(2S)-2-(aminomethyl)pyrrolidine]nickel(II) ion with alk-3-en-2-ones or 4-hydroxyalkan-2-ones: formation of an optically active tetra-aza macrocycle Tadashi Makino, Kazuo Miyamura, Masahiko Saburi and Sadao Yoshikawa, pp 2139 DOI:10.1039/DT9850002139

Reactions of co-ordinated ligands. Part 34. Synthesis, structure, and reactivity of cationic dieneruthenium complexes; crystal structures of [Ru(4-C6H8)(CO)(-C5H5)][BF4] and [Ru(3-C6H9)(CO)(-C5H5)] Mark Crocker, Michael Green, Carolyn E. Morton, Katharine R. Nagle and A. Guy Orpen, pp 2145 DOI:10.1039/DT9850002145

X-Ray diffraction determination of the cation distribution and oxygen positional parameter in polycrystalline spinels Juan M. Rubio González and Carlos Otero Areán, pp 2155 DOI:10.1039/DT9850002155

Crystal structure and spectroscopic and redox properties of the iron-sulphur cluster compound [NEt4]2[Fe4S4(SC6H4NH2-4)4] Timothy J. Ollerenshaw, C. David Garner, Barbara Odell and William Clegg, pp 2161 DOI:10.1039/DT9850002161

Oxoalkyls of rhenium-(V) and-(VI). X-Ray crystal structures of (Me4ReO)2Mg(thf)4,[(Me3SiCH2)4ReO]2Mg(thf)2, Re2O3Me6 and Re2O3(CH2SiMe3)6 Pericles Stavropoulos, Peter G. Edwards, Geoffrey Wilkinson, Majid Motevalli, K. M. Abdul Malik and Michael B. Hursthouse, pp 2167 DOI:10.1039/DT9850002167

Unidentate versus symmetrically and unsymmetrically bidentate nitrate co-ordination in pyrazole-containing chelates. The crystal and molecular structures of (nitrato-O)[tris(3,5-dimethylpyrazol-1-ylmethyl)amine]copper(II) nitrate, (nitrato-O,O)[tris(3,5-dimethylpyrazol-1-ylmethyl)amine]nickel(II) nitrate, and (nitrato-O)(nitrato-O,O)[tris(3,5-dimethylpyrazol-1-ylmethyl)amine]cadmium(II) Gerard J. Kleywegt, Willem G. R. Wiesmeijer, Gertjan J. Van Driel, Willem L. Driessen, Jan Reedijk and Jan H. Noordik, pp 2177 DOI:10.1039/DT9850002177

Synthesis, properties, and 77Se nuclear magnetic resonance studies of platinum metal complexes of two isomeric tris(selenoethers), MeC(CH2SeMe)3 and Se(CH2CH2CH2SeMe)2 Eric G. Hope, William Levason, Stephen G. Murray and Gregory L. Marshall, pp 2185 DOI:10.1039/DT9850002185

Syntheses of organofunctional siloxanes containing metal-ligating sidechains Brian J. Brisdon and Andrew M. Watts, pp 2191 DOI:10.1039/DT9850002191

Pyramidal inversion in configurational isomers of tetracarbonyl[1,1,2,2-tetrakis(methylthio)ethane]chromium(0): a two-dimensional nuclear magnetic resonance exchange study Edward W. Abel, Kevin M. Higgins, Keith G. Orrell, Vladimir ik, Eirian H. Curzon and Oliver W. Howarth, pp 2195 DOI:10.1039/DT9850002195

Notes. On the synthesis of dimethylphenylphosphine complexes of manganese(II) halides Denys A. Wickens and Gillian Abrams, pp 2203 DOI:10.1039/DT9850002203

Preparation and crystal structure of [AsPh4]2[(WCl5)2{µ-NC(CF3)2N}] Nayla K. Homsy, Herbert W. Roesky, Mathias Noltemeyer and George M. Sheldrick, pp 2205 DOI:10.1039/DT9850002205

Synthesis and X-ray crystal structure of the asymmetric trinuclear complex [Ni3(µ3-S)2(H2O)(PPh3)5][PF6]2 Carlo A. Ghilardi, Paolo Innocenti, Stefano Midollini and Annabella Orlandini, pp 2209 DOI:10.1039/DT9850002209

One-electron reduction of nickel(IV) oxime complexes Subhash Baral and A. Graham Lappin, pp 2213 DOI:10.1039/DT9850002213

Copper(II) complexes of N,N-bis(2-carbamoylethyl)ethylenediamine in methanol-water Si-Han Liu and Chung-Sun Chung, pp 2217 DOI:10.1039/DT9850002217

Letters Swarn S. Parmar, pp 2221 DOI:10.1039/DT9850002221

Additions and corrections Sijbe Balt and Hendrikus J. Gamelkoorn, pp 2223 DOI:10.1039/DT9850002223

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500BX035

Issue 11

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FX037

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FP037

Synthesis and characterisation of new mixed oxides of antimony and tellurium José Antonio Alonso, Alicia Castro, Antonio Jerez, Carlos Pico and María Luisa Veiga, pp 2225 DOI:10.1039/DT9850002225

Co-ordinatively unsaturated diene complexes of tungsten(II) and their reactions with nucleophilesto give six- and seven-co-ordinate derivatives Jack L. Davidson and Guiseppe Vasapollo, pp 2231 DOI:10.1039/DT9850002231

Synthesis and nuclear magnetic resonance studies of co-ordinatively unsaturated alkyne complexes of tungsten(II) Jack L. Davidson and Giuseppe Vasapollo, pp 2239 DOI:10.1039/DT9850002239

Preparation and characterisation of 2,2-bipyridine-4,4-disulphonic and -5-sulphonic acids and their ruthenium(II) complexes. Excited-state properties and excited-state electron-transfer reactions of ruthenium(II) complexes containing 2,2-bipyridine-4,4-disulphonic acid or 2,2-bipyridine-4,4 dicarboxylic acid Susan Anderson, Edwin C. Constable, Kenneth R. Seddon, Janet E. Turp, James E. Baggott and Michael J. Pilling, pp 2247 DOI:10.1039/DT9850002247

Reactivity of [NBu4]2[Mo2Br6] with several uni- and poly-dentate phosphines. X-Ray structure of [NBu4][MoBr4(Ph2PCH2CH2PPh2)] Pilar Salagre, Jesús-Eduardo Sueiras, Xavier Solans and Gabriel Germain, pp 2263 DOI:10.1039/DT9850002263

A mechanistic study of the reaction of iron (III) porphyries with imidazoles. Hydrogen bonding by the propionic acid side chains in hemin chloride Meng Qing-jin, Gerard A. Tondreau, John O. Edwards and Dwight A. Sweigart, pp 2269 DOI:10.1039/DT9850002269

The palladium-catalysed reaction between [Re2(CO)10] and phosphines and the crystal and molecular structure of diaxial [Re2(CO)8(PMe2Ph)2] Gillian W. Harris, Jan C. A. Boeyens and Neil J. Coville, pp 2277 DOI:10.1039/DT9850002277

Stereochemical consequences of the two-electron oxidation of a dirhodium fulvalene complex: the X-ray crystal structures of trans-[Rh2(CO)2(PPh3)2(5:5-C10H8)] and cis-[Rh2(CO)2(PPh3)2(5:5-C10H8)][PF6]2 Mark J. Freeman, A. Guy Orpen, Neil G. Connelly, Ian Manners and Stephen J. Raven, pp 2283 DOI:10.1039/DT9850002283

Influence of decreasing solvent polarity (dioxane-water mixtures) on the stability and structure of binary and ternary complexes of adenosine 5-triphosphate and uridine 5-triphosphate Roger Tribolet, Raman Malini-Balakrishnan and Helmut Sigel, pp 2291 DOI:10.1039/DT9850002291

Rhenium nitrido-, arylimido-, nitrite, and carbonyl complexes with sterically hindered thiolate ligands Philip J. Blower and Jonathan R. Dilworth, pp 2305 DOI:10.1039/DT9850002305

Synthesis and cryptate complexes of azathia macropolycyclic ligands based on 12-membered N2S2 and 15-membered N2S3 macrocyclic subunits Albert H. Alberts, Jean-Marie Lehn and David Parker, pp 2311 DOI:10.1039/DT9850002311

Electrical and magnetic properties of K3Cu8S6 (the late) David B. Brown, Edmund Kwiatkowski and Zbigniew Pepliski, pp 2319 DOI:10.1039/DT9850002319

The synthesis, magnetic, electrochemical, and spectroscopic properties of diruthenium(II,II) tetra-µ-carboxylates and their adducts. X-Ray structures of Ru2(O2CR)4L2(R = Me, L = H2O or tetrahydrofuran; R = Et, L = Me2CO) Alan J. Lindsay, Geoffrey Wilkinson, Majid Motevalli and Michael B. Hursthouse, pp 2321 DOI:10.1039/DT9850002321

Copper complexes with quadridentate bis(pyrazolyl)thioether amine and tris(pyrazolyl)amine ligands. Structural characterization of the complexes [Cu(NCS)(tpea)][Cu(NCS)2] and [CuCl(bdma)]Cl·2H2O Massimo Di Vaira and Fabrizio Mani, pp 2327 DOI:10.1039/DT9850002327

Reactivity of [NiR(R)L2] compounds and the crystal structure of [Ni(C2Cl3)(C6H2Me3-2,4,6)(PMe2Ph)2] Juan María Coronas, Guillermo Muller, Mercè Rocamora, Carles Miravitlles and Xavier Solans, pp 2333 DOI:10.1039/DT9850002333

Metallaborane chemistry. Part 14. Icosahedral 6-arena carbametallaboranes of iron and ruthenium; molecular structures of closo-[1-(6-C6H5Me)-2,4-Me2-1,2,4-FeC2B9H9] and closo-[3-(6-C6H6)-3,1,2-RuC2B9H11] Maria P. Garcia, Michael Green, F. Gordon A. Stone, Richard G. Somerville, Alan J. Welch, Clive E. Briant, David N. Cox and D. Michael P. Mingos, pp 2343 DOI:10.1039/DT9850002343

Ion exchange of K4Nb6O17·3H 2O Nobukazu Kinomura, Nobuhiro Kumada and Fumio Muto, pp 2349 DOI:10.1039/DT9850002349

On the possibility of determining the thermodynamic parameters for the formation of weak complexes using a simple model for the dependence on ionic strength of activity coefficients: Na+, K+, and Ca2+ complexes of low molecular weight ligands in aqueous solution Pier G. Daniele, Alessandro De Robertis, Concetta De Stefano, Silvio Sammartano and Carmelo Rigano, pp 2353 DOI:10.1039/DT9850002353

The effect of a dansyl group on the co-ordinative ability of N-protected amino acids. Part 1. Behaviour of the copper(II) ion-N-dansylglycinate system in aqueous and methanolic solution Giovanna Battistuzzi Gavioli, Giulia Grandi, Ledi Menabue, Gian Carlo Pellacani and Marco Sola, pp 2363 DOI:10.1039/DT9850002363

Preparation, characterization, and physical properties of the series MPd3S4(M = rare earth) Douglas A. Keszler, James A. Ibers and Melvin H. Mueller, pp 2369 DOI:10.1039/DT9850002369

Crystal structures and magnetism of binuclear iron(III) complexes with a linear oxo-bridge, [Fe2O(bbimae)2X2][NO3]2{bbimae =2-[bis(benzimidazol-2-ylmethyl)amino]ethanol, X = Cl or NCS} Kazuhiro Takahashi, Yuzo Nishida, Yonezo Maeda and Sigeo Kida, pp 2375 DOI:10.1039/DT9850002375

Carbon-13 nuclear magnetic resonance study of the complexes formed between zinc(II) and triethylenetetramine Stephen P. Dagnall, David N. Hague, Michael E. McAdam and Anthony D. Moreton, pp 2381 DOI:10.1039/DT9850002381

Investigation into aroylhydrazones as chelating agents. Part 7. Synthesis and spectroscopic characterization of complexes of MnII, CoII, NiII, CuII, and ZnII with 2,6-diacetylpyridine bis(2-aminobenzoylhydrazone) and X-ray structure of chloro[2,6-diacetylpyridine bis(2-aminobenzoylhydrazone)](methanol)manganese(II) chloride monohydrate Corrado Pelizzi, Giancarlo Pelizzi, Giovanni Predieri and Francesca Vitali, pp 2387 DOI:10.1039/DT9850002387

Trigonal bipyramidal penta-aquazinc(II): crystal structure of penta-aquazinc(II) bis(3,3,3-phosphinetriyltripropionato)dizincate(II,II) heptahydrate Jana Podlahová, Bohumil Kratochvil, Jaroslav Podlaha and Jindich Haek, pp 2393 DOI:10.1039/DT9850002393

Polyhedral ruthenaborane chemistry: characterization of several new ruthenaboranes by nuclear magnetic resonance spectroscopy, and the crystal and molecular structure of [5,6,6-(PPh3)3-6-H-nido-6-RuB9H12] Norman N. Greenwood, John D. Kennedy, Mark Thornton-Pett and J. Derek Woollins, pp 2397 DOI:10.1039/DT9850002397

Two unusual closo-type ruthenaboranes: preparation, molecular structure, and nuclear magnetic resonance properties of [1,1,1 -(PPh3)HCl-1-RuB9H7-3,5-(PPh3)2] and [1,1 -(PPh3)2-1 -RuB10H8-2,5-(OEt)2] Janet E. Crook, Margaret Elrington, Norman N. Greenwood, John D. Kennedy, Mark Thornton-Pett and J. Derek Woollins, pp 2407 DOI:10.1039/DT9850002407

Synthesis of trinuclear gold(I) and gold(III) complexes containing the tridentate bis(diphenylphosphino)methanide ligand. Crystal structure of [Cl(C6F5)2Au{Ph2PCH(AuNC5H5)PPh2}AuCl] Rafael Usón, Antonio Laguna, Mariano Laguna, Blanca R. Manzano, Peter G. Jones and George M. Sheldrick, pp 2417 DOI:10.1039/DT9850002417

Some alkyldiplatinum(I) complexes and studies of the photochemical and thermal decomposition of the [Pt2Et(µ-Ph2PCH2PPh2)2(Ph2PCH2PPh2-P)]+ cation Michael P. Brown, Ahmad Yavari, Ross H. Hill and Richard J. Puddephatt, pp 2421 DOI:10.1039/DT9850002421

Electrophilic nitrosyls: preparation, structure, and reactivity of cis-chloronitrosylbis(pyridine-2-carboxylato)ruthenium and related complexes Frank Bottomley, Ekkehardt Hahn, Joachim Pickardt, Herbert Schumann, Masco Mukaida and Hidetake Kakihana, pp 2427 DOI:10.1039/DT9850002427

Crystal structures of the difluorophosphate complexes, Co(O2PF2)2·2MeCN and Cu(O2PF2)2 Michael J. Begley, Michael F. A. Dove, Richard C. Hibbert, Norman Logan, Michael Nunn and D. Bryan Sowerby, pp 2433 DOI:10.1039/DT9850002433

Synthesis of tetra-and penta-nuclear platinum-osmium carbido-cluster complexes from non-carbido-precursors: X-ray structural studies on [Os3Pt (µ-H)2(µ4-C)(CO)10{P(cyclo-C6H11)3}],[Os3Pt2(µ-H)2(µ5-C)(µ-CO)(CO)9{P(cyclo-C6H11)3}2], and [Os3Pt2(µ-H)(µ5-C)(µ-OMe)(µ-CO)(CO)9{P(cyclo-C6H11)3}2] Louis J. Farrugia, Anthony D. Miles and F. Gordon A. Stone, pp 2437 DOI:10.1039/DT9850002437

Notes. Thiazyl chloride complexes of ruthenium(II) Minu Gupta, Rajan F. N. Ashok, Anjali Mishra, Virendra B. S. Chauhan and Umesh C. Agarwala, pp 2449 DOI:10.1039/DT9850002449

Reaction of the anion [WCl4(CBut)]- with tetrasulphur tetranitride. Formation and crystal structure of [AsPh4][WCl3O(OS2N2)] Jens Anhaus, Zafar A. Siddiqui, Herbert W. Roesky and Jan W. Bats, pp 2453 DOI:10.1039/DT9850002453

Crystal structure of tris(methylmercurio)sulphonium perchlorate Boris Kamenar, Branko Kaitner and Stefan Pocev, pp 2457 DOI:10.1039/DT9850002457

Additions and corrections Kattesh V. Katti and Setharampattu S. Krishnamurthy, pp 2459 DOI:10.1039/DT9850002459

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500BX039

Issue 12

Front cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FX041

Contents pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500FP041

A kinetic study of the complexation of cysteine and related compounds with aqueous vanadium(II) and vanadium(III) at approximately neutral pH; the mediating role of sulphur compounds in electron transfer John Konstantatos, George Kalatzis, Ersi Vrachnou-Astra and Dimitris Katakis, pp 2461 DOI:10.1039/DT9850002461

Linkage isomerism in penta-ammineruthenium(II),(III) complexes of benzotriazole Henrique E. Toma, Ernesto Giesbrecht and Ramón L. Espinoza Rojas, pp 2469 DOI:10.1039/DT9850002469

Nitrogen-15 nuclear magnetic resonance relaxation mechanisms in dinitrogen complexes of molybdenum, tungsten, rhenium, and osmium Susan Donovan-Mtunzi, Colin J. MacDonald, Raymond L. Richards, Geoffrey E. Hawkes and Joan Mason, pp 2473 DOI:10.1039/DT9850002473

Acid-induced displacement of acetaldehyde from a µ-vinyloxy-triosmium cluster Alejandro J. Arce, Antony J. Deeming, Susan Donovan-Mtunzi and Shariff E. Kabir, pp 2479 DOI:10.1039/DT9850002479

Reactions of co-ordinated ligands. Part 35. Evidence for carbon-carbon double-bond cleavage of cyclopropenes in their reaction with dinuclear cobalt, rhodium, and iridium complexes; crystal structure and protolysis of [Rh2(µ-CO)(µ-COCHCMe2CH)(µ-C5Me5)2] Michael Green, A. Guy Orpen, Colin J. Schaverien and Ian D. Williams, pp 2483 DOI:10.1039/DT9850002483

Kinetics and mechanism of the equilibration reaction between (2,2,2-nitrilotriethoxy)nitrosylvanadate(1-) and cyanide. Crystal structures of sodium (2,2,2-nitrilotriethoxy)nitrosylvanadate(I)-sodium perchlorate tetrahydrate and of barium cyano(2,2,2-nitrilotriethoxy)nitrosylvanadate(I) pentahydrate Karl Wieghardt, Michael Kleine-Boymann, Wolfgang Swiridoff, Bernhard Nuber and Johannes Weiss, pp 2493 DOI:10.1039/DT9850002493

Selective conversion of CO into methanol at ordinary temperature. Part 4. Activation by iron(II), iron(III), and chromium(III) complexes Kotaro Ogura and Shinji Yamasaki, pp 2499 DOI:10.1039/DT9850002499

The chemistry of heteroarylphosphorus compounds. Part 16. Unusual substituent effects on selenium-77 nuclear magnetic resonance chemical shifts of heteroaryl- and aryl-phosphine selenides. X-Ray crystal structure of tri(2-furyl)phosphine selenide David W. Allen, I. W. Nowell and Brian F. Taylor, pp 2505 DOI:10.1039/DT9850002505

Magnetic and spectroscopic properties of some heterotrinuclear basic acetates of chromium(III), iron(III), and divalent metal ions Antony B. Blake, Ahmad Yavari, William E. Hatfield and C. N. Sethulekshmi, pp 2509 DOI:10.1039/DT9850002509

The [Fe3(µ3-CR)(CO)10]- cluster anions as building blocks for the synthesis of mixed-metal clusters. Part 1. Synthesis of mixed clusters [MFe3(µ3-CMe)-(CO)10(PPh3)](M = Cu or Au) and crystal structure of [CuFe3(µ3-CMe)-(CO)10(PPh3)] Serge Attali, Françoise Dahan and René Mathieu, pp 2521 DOI:10.1039/DT9850002521

Studies on singlet oxygen in aqueous solution. Part 4. The spontaneous and catalysed decomposition of hydrogen peroxide Dennis F. Evans and Mark W. Upton, pp 2525 DOI:10.1039/DT9850002525

Lewis-base adducts of Group 1B metal(I) compounds. Part 18. Stereo-chemistries and structures of the 1 : 1 neutral complexes of CuIX with 1,10-phenanthroline (X = I) or 2,9-dimethyl-1,10-phenanthroline (X = I, Br, or Cl) Peter C. Healy, Chaveng Pakawatchai and Allan H. White, pp 2531 DOI:10.1039/DT9850002531

Lewis-base adducts of Group 1B metal(I) compounds. Part 19. Crystal structures of bis(1,10-phenanthroline)copper(I) perchlorate and dibromocuprate(I) Peter C. Healy, Lutz M. Engelhardt, Vincent A. Patrick and Allan H. White, pp 2541 DOI:10.1039/DT9850002541

Mixed-ligand complexes of trivalent lanthanides. Part 3. Complexes of heptafluorodimethyloctane-3,5-dione and pyrazine: syntheses and spectral studies Khalid Iftikhar, Anis U. Malik and Naseer Ahmad, pp 2547 DOI:10.1039/DT9850002547

Electrochemical studies in HNO3-N2O4 mixtures: corrosion of stainless steel in HNO3-N2O4 mixtures and the effect of inhibitors Paul G. Cheeseman, Michael F. A. Dove, Richard C. Hibbert, Norman Logan and Peter J. Boden, pp 2551 DOI:10.1039/DT9850002551

Molecular structure of gaseous copper(I) acetate as determined by electron diffraction Kinya Lijima, Takayuki Itoh and Shuzo Shibata, pp 2555 DOI:10.1039/DT9850002555

Interactions of [Mo(Co)6] and [Mo(CO)3(C6H5CH3)] with O2N2- and O2N3-donor macrocycles and the X-ray crystal structure of tetracarbonyl(6,7,16,17-tetrahydro-15H-dibenzo[e,n][1,4,8,12]dioxadiazacyclopentadecine)-molybdenum-toluene (2/1) Piero Leoni, Ernesta Grilli, Marco Pasquali and Marco Tomassini, pp 2561 DOI:10.1039/DT9850002561

Reactions of metal ions with triketones. Part 2. Kinetics and mechanisms of the reactions of nickel(II) and cobalt(II) with heptane-2,4,6-trione in methanol-water (70: 30 v/v) Michael J. Hynes and James Walsh, pp 2565 DOI:10.1039/DT9850002565

Kinetics and mechanism of electron-transfer reactions of bismuth(V) in aqueous acidic perchlorate-fluoride media. Part 1. Oxidation of hypophosphorous acid Krishnadass M. Inani, Prem Dutt Sharma and Yugul Kishore Gupta, pp 2571 DOI:10.1039/DT9850002571

Studies on spin-equilibrium iron(III) complexes. Part 1. Syntheses and magnetic properties of a new family of spin cross-over iron(III) complexes with a unidentate ligand over a wide range of the spectrochemical series and a quinquedentate ligand derived from salicylaldehyde and di(3-aminopropyl)amine. X-Ray crystal structure of [4-azaheptamethylene-1,7-bis(salicylideneiminato)](4-methylpyridine)iron(III) tetraphenylboratet Naohide Matsumoto, Shoichi Ohta, Chikako Yoshimura, Akira Ohyoshi, Susumu Kohata, Hisashi Okawa and Yonezo Maeda, pp 2575 DOI:10.1039/DT9850002575

Photochemical studies of the alkylammonium molybdates. Part 7. Octahedral sites for multi-electron reduction of [Mo8O26(MoO4)2]8 - Toshihiro Yamase, pp 2585 DOI:10.1039/DT9850002585

Electronic structures of the closo-thiaboranes 1-SB9H9 and 1-SB11H11. Electrophilic substitution in 1-SB9H2 Jacqueline MacCurtain, Paul Brint and Trevor R. Spalding, pp 2591 DOI:10.1039/DT9850002591

Fragmentation of co-ordinated carbon disulphide and dithiocarbene ligands by nucleophilic attack at carbon: the crystal structure of [(Ph3P)IPt(µ-SMe)(µ-CSMe)PtI(PPh3)]·Me2CO Emei Ma, Gavin Semelhago, Alan Walker, David H. Farrar and Ravi R. Gukathasan, pp 2595 DOI:10.1039/DT9850002595

Cationic complexes of ruthenium-(II) and -(III) with uni- and poly-dentate ligands Mirza M. Taqui Khan, Hari C. Bajaj, Md. Rafiq H. Siddiqui, Badar Taqui Khan, M. Satyanarayan Reddy and K. Veera Reddy, pp 2603 DOI:10.1039/DT9850002603

Crystal and molecular structure and magnetic properties of linear trimeric copper(II) complexes with predominant ferromagnetic exchange interaction Wolfgang Haase and Stefan Gehring, pp 2609 DOI:10.1039/DT9850002609

Kinetics and mechanisms of complex formation of gallium(III) and indium(III). The reactions with 4-(2-pyridyiazo)resorcinol in water and other mixed solvents Edoardo Mentasti, Claudio Baiocchi and Louis J. Kirschenbaum, pp 2615 DOI:10.1039/DT9850002615

Indium derivatives of monothio--diketones and the X-ray structure of tris[benzoyl(thiobenzoyl)methanato-o,s]indium(III) Channareddy Sreelatha, Vishnu D. Gupta, Chaitanya K. Narula and Heinrich Nöth, pp 2623 DOI:10.1039/DT9850002623

Kinetics and mechanism of ortho-palladation of ring-substituted NN-dimethylbenzylamines Alexander D. Ryabov, Inna K. Sakodinskaya and Anatoly K. Yatsimirsky, pp 2629 DOI:10.1039/DT9850002629

Complexes of molybdenum-(II) and -(IV) and tungsten(II) with sterically hindered thiolate ligands. Synthesis, reactivity, and X-ray crystal structures of [PPH4][Mo(SC6H2Pri3,-2,4,6)3(CO)2] and [Mo(NNPh)(SC6H2Pri3-2,4,6)3(NCMe)] Philip J. Blower, Jonathan R. Dilworth, John Hutchinson, Terry Nicholson and Jon A. Zubieta, pp 2639 DOI:10.1039/DT9850002639

Molybdenum, rhenium, and tungsten complexes with bi- and tri-dentate phosphinothiolato-ligands; structures of [Mo{PhP(CH2CH2S)2}2] and [Mo(NNMe2){PhP(CH2CH2S)2}2] Philip J. Blower, Jonathan R. Dilworth, G. Jeffery Leigh, Bryan D. Neaves, Fred B. Normanton, John Hutchinson and Jon A. Zubieta, pp 2647 DOI:10.1039/DT9850002647

Novel ring compounds of bidentate phosphines with gold(I). Two-, three-, and four-co-ordination Salam Al-Baker, William E. Hill and Charles A. McAuliffe, pp 2655 DOI:10.1039/DT9850002655

The co-ordination of small molecules by manganese(II) phosphine complexes. Part 3. The dependence on the nature of the halogen in [MnX2(PR3)](X = Cl, Br, or I; R3= PhMe2, PhEt2, PhPrn2, PhBun2, PhBui3, Prn3, Bun3, or Ph3) on adduct formation with sulphur dioxide in the solid state and in tetrahydrofuran solution David S. Barratt, Christopher G. Benson, George A. Gott, Charles A. McAuliffe and S. Peter Tanner, pp 2661 DOI:10.1039/DT9850002661

Equilibrium and structural studies of silicon(IV) and aluminium(III) in aqueous solution. Part 13. A potentiometric and 27Al nuclear magnetic resonance study of speciation and equilibria in the aluminium(III)-oxalic acid-hydroxide system Staffan Sjöberg and Lars-Olof Öhman, pp 2665 DOI:10.1039/DT9850002665

Methyltin hydrides in fluorosulphuric acid Thomas Birchall and Veeragathy Manivannan, pp 2671 DOI:10.1039/DT9850002671

He I and He II photoelectron spectra of open-chain pentadienyl complexes of manganese and rhenium Jennifer C. Green, Maria de los Angeles Paz-Sandoval and Paul Powell, pp 2677 DOI:10.1039/DT9850002677

Notes. A novel pentameric hydrolysis product of SnMe2Cl2: crystal and molecular structure of [NHEt3][(SnMe2Cl)5O3] Nathaniel W. Alcock, Mark Pennington and Gerald R. Willey, pp 2683 DOI:10.1039/DT9850002683

Ligand reactivity in polypyridine complexes; the deuteriation of the bis(2,2:6,2-terpyridine)ruthenium(II) cation Edwin C. Constable, pp 2687 DOI:10.1039/DT9850002687

Letters Alan D. Cameron, Michael C. Baird, Jeffrey I. Seeman and Stephen G. Davies, pp 2691 DOI:10.1039/DT9850002691

Back cover J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500BX043

Index pages J. Chem. Soc., Dalton Trans. DOI:10.1039/DT98500BA001