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Kleine Anionen spielen eine große Rolle bei der Synthese stark lumineszierender Gold(I)‐Silber(I)‐Cluster. Q.‐M. Wang et al. zeigen in der Zuschrift auf S. 7223, dass ein Goldcluster durch stufenweise Anlagerung von Silberionen zunehmend starrer wird. Der Kern ist vollständig von organischen Liganden und anorganischen Anionen geschützt und verfügt über eine hoch effiziente Lichtemission.
An intensely luminescent gold(I)–silver(I) cluster [(C)(AuPPhpy2)6Ag6(CF3CO2)3](BF4)5 (PPhpy2=bis(2‐pyridyl)phenylphosphine) (3) is synthesized by the reaction of [(C)(AuPPhpy2)6Ag4](BF4)6 with AgCF3CO2. All eight faces of the octahedral C@Au6 core in 3 are capped, that is, six faces are capped by silver ions and two by tetrafluoroborates. Cluster 3 is intensely luminescent in solution with a quantum...
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