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Issue 23, 1992
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Photoinduced C–C bond formation from alkyl halides catalysed by luminescent dinuclear gold(I) and copper(I) complexes

Abstract

The photoluminescent properties of [Au2(µ-dppm)2]2+[dppm = bis(diphenylphosphino)methane], [Au2(µ-dmpm)3]2+[dmpm = bis(dimethylphosphino)methane] and [Cu2(µ-dppm)2(MeCN)4]2+ have been investigated. Irradiation of a degassed acetonitrile solution of benzyl chloride or 1-bromopentane in the presence of a sacrificial electron donor such as triethylamine and a catalytic amount of [Au2(µ-dppm)2]2+ led to the formation of bibenzyl or n-decane. Similar photoreactions with much lower yields of the C–C bond coupling products have also been observed with [Au2(µ-dmpm)3]2+ and [Cu2(µ-dppm)2(MeCN)4]2+ as catalysts. The mechanism of the photoreaction between alkyl halides and [Au2(µ-dppm)2]2+ has been investigated by steady-state photolysis, Stern–Volmer quenching and flash-photolysis studies.

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Article information


J. Chem. Soc., Dalton Trans., 1992, 3325-3329
Article type
Paper

Photoinduced C–C bond formation from alkyl halides catalysed by luminescent dinuclear gold(I) and copper(I) complexes

D. Li, C. Che, H. Kwong and V. W. Yam, J. Chem. Soc., Dalton Trans., 1992, 3325
DOI: 10.1039/DT9920003325

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