Dispersion, solvent and metal effects in the binding of gold cations to alkynyl ligands: implications for Au(I) catalysis

Luisa Ciano, Natalie Fey, Connor J. V. Halliday, Jason M. Lynam, Lucy M. Milner, Nimesh Mistry, Natalie E. Pridmore, Nell S. Townsend, Adrian C. Whitwood

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The coordination modes of the [Au(PPh3)]+ cation to metal alkynyl complexes have been investigated. On addition to ruthenium, a vinylidene complex, [Ru([small eta]5-C5H5)(PPh3)2([double bond, length as m-dash]C[double bond, length as m-dash]CPh{AuPPh3})]+, is obtained while addition to a gold(iii) compound gives di- and trinuclear gold complexes depending on the conditions employed. In the trinuclear species, a gold(i) cation is sandwiched between two gold(iii) alkynyl complexes, suggesting that coordination of multiple C-C triple bonds to gold is facile.
Original languageEnglish
Pages (from-to)9702-9705
Number of pages4
JournalChemical Communications
Publication statusPublished - 2015

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