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Issue 64, 2017
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A highly luminescent octanuclear gold(i) carbide cluster

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The ligand [{Me3SiC[triple bond, length as m-dash]CC(NDipp)2}Li(thf)3] (Dipp = 2,6-diisopropylphenyl) was used for salt metathesis reactions with [AuCl(tht)] (tht = tetrahydrothiophene) to obtain the dinuclear alkyne functionalized bisamidinate [{Me3SiC[triple bond, length as m-dash]CC(NDipp)2}2Au2]. This compound serves as a building block for the polynuclear carbide bridged gold(I) amidinate complex [Au83-(η12-C[triple bond, length as m-dash]C)}2(Me3SiC[triple bond, length as m-dash]CC(NDipp)2)4(tht)2], which is the first gold(I) complex with a μ312 carbide coordination. Both gold(I) compounds show distinct aurophilic interactions and are remarkably stable at ambient conditions. Photophysical investigations revealed intense luminescence with notable high quantum yields both in the solid state and in solution.

Graphical abstract: A highly luminescent octanuclear gold(i) carbide cluster

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Article information

30 May 2017
19 Jul 2017
First published
27 Jul 2017

Chem. Commun., 2017,53, 9012-9015
Article type

A highly luminescent octanuclear gold(I) carbide cluster

T. J. Feuerstein, M. Poß, T. P. Seifert, S. Bestgen, C. Feldmann and P. W. Roesky, Chem. Commun., 2017, 53, 9012
DOI: 10.1039/C7CC04171C

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