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Issue 10, 2015
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A hexanuclear gold carbonyl cluster

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Abstract

The hexanuclear gold carbonyl cluster [PPh4]2[Au6(CF3)6Br2(CO)2] (4) has been obtained by spontaneous self-assembly of the following independent units: CF3AuCO (1) and [PPh4][Br(AuCF3)2] (3). The cyclo-Au6 aggregate 4, in which the components are held together by unassisted, fairly strong aurophilic interactions (Au⋯Au ∼310 pm), exhibits a cyclohexane-like arrangement with chair conformation. These aurophilic interactions also result in significant ν(CO) lowering: from 2194 cm−1 in the separate component 1 to 2171 cm−1 in the mixed aggregate 4. Procedures to prepare the single-bridged dinuclear component 3 as well as the mononuclear derivative [PPh4][CF3AuBr] (2) are also reported.

Graphical abstract: A hexanuclear gold carbonyl cluster

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Publication details

The article was received on 30 Apr 2015, accepted on 12 Jun 2015 and first published on 15 Jun 2015


Article type: Edge Article
DOI: 10.1039/C5SC01578B
Citation: Chem. Sci., 2015,6, 5506-5510
  • Open access: Creative Commons BY-NC license
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    A hexanuclear gold carbonyl cluster

    S. Martínez-Salvador, L. R. Falvello, A. Martín and B. Menjón, Chem. Sci., 2015, 6, 5506
    DOI: 10.1039/C5SC01578B

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