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DOI: 10.1039/A703860G (Paper) Reference Section for: J. Chem. Soc., Dalton Trans., 1997, 3725-3732

Thiolateisocyanide complexes of molybdenum(II) and tungsten(II): crystal structures of cis-[Mo(SC6H2Pri3-2,4,6)2(CNMe)4], cis-[Mo(SC6H2Pri3-2,4,6)2(CNBut)4] and cis-[W(SC6H2Pri3-2,4,6)2(CNMe)4], and anodically induced isomerisation studies

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M. Fatima C. Guedes da Silva, Peter B. Hitchcock, David L. Hughes, Katayoun Marjani, Armando J. L. Pombeiro and Raymond L. Richards

Abstract

Reaction of [MH(SC6H2Pri3-2,4,6)3(PMe2Ph)2] (M = Mo or W) or [MoH(SC6H2Pri3-2,4,6)3(PMePh2)] with RNC (R = Me or But) gave the complexes cis-[M(SC6H2Pri3-2,4,6)2(CNR)4] 1 (M = Mo, R = Me or But; M = W, R = Me), which have been shown to have distorted octahedral geometry by X-ray crystallography. Spectroscopic data for 1 are also described. At –50 °C in CH2Cl2 solution the complexes cis-[Mo(SC6H2Pri3-2,4,6)2(CNR)4] (R = Me or But) undergo an anodically induced isomerisation according to an electrochemical–chemical square-type mechanism for which rate and equilibrium constants have been estimated by digital simulation of cyclic voltammetric data.

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