Issue 17, 1996

Synthesis of heteropolynuclear complexes with 1,1,1-tris(diphenylphosphinomethyl)ethane. Crystal structure of [(OC)4Mo{(Ph2PCH2)2CMe(CH2PPh2)}AuCl]

Abstract

Treatment of [M(CO)4{(Ph2PCH2)2CMe(CH2PPh2)}](M = Mo or W) with neutral or cationic gold-(I) or -(III) derivatives afforded bi- or tri-nuclear complexes containing the triphosphine (Ph2PCH2)3CMe (tdppme) acting as a µ-P,P′,P″ ligand, a co-ordination mode poorly represented thus far. The binuclear derivative [(OC)4Mo(tdppme)AuCl] further reacts with 1 equivalent of Tl(acac)(acac = acetylacetonate) to afford [(OC)4Mo(tdppme)Au(acac)]. This complex acts as a deprotonating agent in reactions with various starting materials containing phosphines such as (Ph2P)2CH2 or (Ph2P)3CH, leading to the formation of trinuclear methanide complexes. The crystal structure of [(OC)4Mo(tdppme)AuCl] has been established by X-ray crystallography.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1996, 3603-3608

Synthesis of heteropolynuclear complexes with 1,1,1-tris(diphenylphosphinomethyl)ethane. Crystal structure of [(OC)4Mo{(Ph2PCH2)2CMe(CH2PPh2)}AuCl]

E. J. Fernández, M. C. Gimeno, P. G. Jones, A. Laguna, M. Laguna and E. Olmos, J. Chem. Soc., Dalton Trans., 1996, 3603 DOI: 10.1039/DT9960003603

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