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Issue 8, 2011
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Synthesis of gold(i) fluoroalkyl and fluoroalkenyl-substituted phosphine complexes and factors affecting their crystal packing

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Abstract

A series of gold(I) phosphine complexes of the type [AuCl{PR2(Rf)}] (R = Et, i-Pr, Cy; Rf = CF[double bond, length as m-dash]CF2; R = Ph, Rf = CF[double bond, length as m-dash]CFH, CCl[double bond, length as m-dash]CF2, C[triple bond, length as m-dash]CCF3, CF3, i-C3F7, s-C4F9) have been prepared and most have been structurally characterised. All of the complexes are monomeric in the solid state, and a number of secondary interactions are observed – including short intramolecular Au⋯F distances, metal-bound Au–Cl⋯H non-classical hydrogen bonds, fluorous domains and phenyl embraces. Only in the case of [AuCl{PEt2(CF[double bond, length as m-dash]CF2)}] is an aurophilic interaction with an Au⋯Au contact less than the sum of the van der Waals radii observed. Even then, the distance, 3.3458(10) Å, is longer than that previously observed for the related complex with R = Ph; Rf = CF[double bond, length as m-dash]CF2.

Graphical abstract: Synthesis of gold(i) fluoroalkyl and fluoroalkenyl-substituted phosphine complexes and factors affecting their crystal packing

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Supplementary files

Article information


Submitted
14 Aug 2010
Accepted
12 Nov 2010
First published
06 Dec 2010

Dalton Trans., 2011,40, 1743-1750
Article type
Paper

Synthesis of gold(I) fluoroalkyl and fluoroalkenyl-substituted phosphine complexes and factors affecting their crystal packing

N. A. Barnes, A. K. Brisdon, F. R. William Brown, W. I. Cross, I. R. Crossley, C. Fish, C. J. Herbert, R. G. Pritchard and J. E. Warren, Dalton Trans., 2011, 40, 1743
DOI: 10.1039/C0DT01014F

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