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

Nicholas A. Barnes, Alan K. Brisdon, F. R. William Brown, Wendy I. Cross, Ian R. Crossley, Cheryl Fish, Christopher J. Herbert, Robin G. Pritchard, John E. Warren

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A series of gold(i) phosphine complexes of the type [AuCl{PR 2(Rf)}] (R = Et, i-Pr, Cy; Rf = CFCF 2; R = Ph, Rf = CFCFH, CClCF2, CCCF 3, CF3, i-C3F7, s-C 4F9) 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{PEt 2(CFCF2)}] 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 = CFCF2. © 2011 The Royal Society of Chemistry.
    Original languageEnglish
    Pages (from-to)1743-1750
    Number of pages7
    JournalDalton Transactions
    Volume40
    Issue number8
    DOIs
    Publication statusPublished - 28 Feb 2011

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