High-nuclearity silver ethynide cluster encapsulating a template hexafluorosilicate ion

摘要

A novel high-nuclearity silver(I) ethynide cluster complex, namely {SiF_6@Ag_(24)(C∈C~tBu)_(20)} ·SiF_6, has been isolated from the reaction between AgBF _4 and ~tBuC∈CAg in a glass beaker. Single-crystal X-ray analysis showed that an in situ generated hexafluorosilicate template anion occupies the central cavity of the cationic polyhedral Ag_(24) cluster, which is consolidated by peripheral tert-butyl ethynide groups and intercluster hexafluorosilicate ions.