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Gold(I) Complexes derived from Secondary Phosphines: , (-), , and (+). Crystal structure of

DOI: 10.1039/DT9890000907

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 907 - 914 (1989)

Update date:2022-08-04

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Authors:

Dyson, David B.Dyson, David B.

Parish, R. V.Parish, R. V.

McAuliffe, Charles A.McAuliffe, Charles A.

Pritchard, Robin G.Pritchard, Robin G.

Fields, RoyFields, Roy

Beagley, BrianBeagley, Brian

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Article abstract of DOI:10.1039/DT9890000907

The interaction of secondary phosphines with a variety of gold(I) compounds has been studied.In the presence of bases or polar solvents, polymeric gold(I) phosphides <(Au(μ-PR2))n> are formed.When these are obtained in the absence of additional ligands they are soluble, presumably with ring structures.More usually, insoluble forms are found, presumably with chain structures.The probable formation of these materials from complexes of the type is discussed, and the isolation of the latter complexes (X=Cl or Br, R=Ph or p-tolyl) and of the novel monomeric phosphido-bridged anion <(AuBr)2(μ-PPh2)>(-) is described.In non-polar solvents a series of secondary phosphine complexes is formed, (+) (n=2-4), but that with n=3 appears to be unstable to disproportionation.The compounds are characterised by (31)P n.m.r. and (197)Au Moessbauer spectroscopy, and X-ray crystallography in the case of .

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