Synthesis and crystal structure of [tBu_3SiPAg_2]_8: A novel Ag_(16)-cluster featuring a remarkable symmetrical structure

摘要

The synthesis of [tBu_3SiPAg_2]_8 which features an Ag_(16)-cluster in the solid state was achieved by metathesis reaction of AgOCN with tBu_3SiPNa_2.In a number of recent studies,bulk silyl chalcogenolatc ligands of the type R_3SiE~-(E = O,S.Se,Te)have been used to stabilize transition metal centres.Such ligands have attracted interest for a number of reasons.The chalcogen donor atoms are often found to bridge metal centres,suggesting possible applications in the stabilization of transition metal clusters.Such metal clusters with subnanometre core dimensions may be useful as building blocks for nanoscale devices because they are small enough to possess discrete electronic states.