Silver ethynide clusters constructed with fluorinated β-diketonate ligands

A fluorinated β-diketonate hexafluoroacetylacetone ligand has been employed to construct eight new silver ethynide clusters. Single crystal X-ray analysis revealed that complexes 1–8 are functionalized by hexafluoroacetylacetones as terminal ligands. In compounds 3–8, different kinds of silver ethynide cluster shells enclose various templates, respectively. In 7 and 8, the tert-butylphosphonate ligand functions as a tripodal strut to support the vertex-sharing or fusion of two small silver(I) clusters to form an enlarged composite cluster.

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