Effects of diphosphine structure on aurophilicity and luminescence in Au(I) complexes

A Pintado-Alba, H de la Riva, M Nieuwhuyzen, D Bautista, P R Raithby, H A Sparkes, S J Teat, J M Lopez-de-Luzuriaga, M C Lagunas

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93 Citations (Scopus)

Abstract

The effects of diphosphine flexibility and bite angle on the structures and luminescence properties of Au(I) complexes have been investigated. A range of diphosphines based on heteroaromatic backbones [ bis(2-diphenylphosphino) phenylether (dpephos), 9,9-dimethyl-4,5-bis(diphenylphosphino) xanthene (xantphos), and 4,6-bis(diphenylphosphino) dibenzofuran (dbfphos)] has been used to prepare mono- and digold derivatives. A clear relationship between the presence of aurophilic contacts and the emission properties of dinuclear complexes has been observed, with one of the complexes studied, [Au2Cl2(mu-xantphos)], exhibiting luminescence thermochromism.
Original languageEnglish
Pages (from-to)3459-3467
Number of pages9
JournalDalton Transactions
Issue number21
DOIs
Publication statusPublished - 2004

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