Small Gold Clusters with Carborane Ligands: Synthesis and Structural Characterization of the Novel Compound [Au4{(PPh2)2C2B9H10}2(AsPh3)2]


  • This work was supported by the Dirección General de Investigation Cientifica y Ténica (PB94-0079) and the Fonds der Chemischen Industrie.


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Depending on the stoichiometric ratio of the reactants, the reaction of [AuCl(AsPh3)] with (PPh2)2C2B10H10 in ethanol at reflux gives two very different compounds containing partially degraded carborane moieties: the four-coordinate complex [Au{(PPh2)2C2B9H10}{(PPh2)2C2B10H10}] or the novel gold cluster [Au4{(PPh2)2C2B9H10}2(AsPh3)2] (depicted on the right).