J. R. Hyde

Molybdenum(IV) complexes with terminal imido- and nitrido-ligands the crystal and molecular structures of [MoN(N3)(Ph2P(CH2)2PPh2)2] and [MoBr(NH)(Ph2P(CH2)2PPh2)2] Br·MeOH

Abstract The structures of [MoN(N3)(Ph2P(CH2)2PPh2)2] (I) and [MoBr(NH)(Ph2P(CH2)2PPh2] Br·MeOH (II) have been determined. Crystal data (I): Space Group Pl. a = 11540(2), b = 13.102(2), c = 9.612(2) A, α = 99.58(1), β = 108.88(1), γ = 110.46(1)°, V = 1211.50 A3, Z = 1;2731 reflections to give R = 0.061. Crystal data (II): Space Group P21/n; a = 18.111(2) A, b = 16.548(3), A, c = 18.064(2) A, α = 90.0°, β = 105.30(1)°, γ = 90.0°; V = 5395.15 A3; Z = 4; 1837 reflections to give R = 0.054. In I the geometry is pseudooctahedral and the Mo-nitride distance is unusually long at 1.79(2) A. The trans azido-group is nearly linear (

Structural comparison of CuI and CuII complexes displaying analogous N2S2 co-ordination; X-ray analysis of tetraco-ordinate [Cu(pma)]BPh4 and pentaco-ordinate [Cu(pma)SO4][pma2-pyridylmethylbis-(2-ethylthioethyl)amine]

The synthesis and X-ray structural characterization of the CuI and CuII complexes [Cu(pma)]BPh4 and [Cu(pma)SO4][pma2-pyridylmethylbis-(2-ethylthioethyl)amine] are reported; both display N2S2 co-ordination with the CuI complex exhibiting trigonal pyramidal geometry while the CuII derivative shows a distorted trigonal bipyramidal geometry which includes a co-ordinated sulphate group.

Preparation and characterization of tetrakis(thioxanthato)molybdenum(IV) complexes

Abstract Several thixanthato complexes of Mo(IV) have been prepared and characterized as diamagnetic, 8-coordinate species. The IR, NMR and electronic spectra of these complexes are discussed and compared with the previously reported dithiocarbamate and dithiocarboxylate analogues. The complexes are electrochemically active, and controlled potential electrolysis of the isopropyl compound, Mo(S 2 CSiC 3 H 7 ) 4 , at +0.4 V yields [Mo(S 2 CSiC 3 H 7 ) 4 ] + . The ESR and electronic spectra of this Mo(V) complex are discussed.

Chemical characterization and X-ray crystal structure of a trigonal prismatic MoIV complex with mercapto- and sulphide-sulphur donors [Mo(SCH2CH2SCH2CH2S)2]

Reaction of MoCl5 with 2-mercaptoethyl sulphide, (HSCH2CH2)2S, (mes), yields a MoIV complex [Mo(mes)2], which possesses trigonal prismatic geometry through co-ordination to both mercapto- and sulphide-sulphur donors; the complex displays well-behaved redox processes, which may be characteristic of certain Mo–thiolate systems.