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

Barnes, Nicholas A, Brisdon, Alan K, Brown, F R William, Cross, Wendy I, Crossley, Ian R, Fish, Cheryl, Herbert, Chrisopher J, Pritchard, Robin G and Warren, John E (2011) Synthesis of Gold(I) fluoroalkyl and fluoroalkenyl-substituted phosphine complexes and factors affecting their crystal packing. Dalton Transactions, 40. pp. 1743-1750.

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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 AuF distances, metal-bound AuClH 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 AuAu contact less than the sum of the van der Waals radii observed. Even then, the distance, 3.3458(10) , is longer than that previously observed for the related complex with R = Ph; Rf = CF[double bond, length as m-dash]CF2.

Item Type: Article
Additional Information: One of 4 contributing experimentalists.
Schools and Departments: School of Life Sciences > Chemistry
Depositing User: Ian Crossley
Date Deposited: 06 Feb 2012 18:44
Last Modified: 22 May 2012 10:01
URI: http://sro.sussex.ac.uk/id/eprint/18087
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