New Skeletal 3D Polymeric Inorganic Cluster [W_4S_(16)Cu_(16)Cl_(16)]_n with Cu in Mixed-Valence States:Solid-State Synthesis,Crystal Structure,and Third-Order Nonlinear Optical Properties

摘要

A new 3D polymeric inorganic cluster with Cu in mixed-valence states was synthesized by the solid-state reaction of(NH_4)_2WS_4,S_8,CuCl,and Et_4NCl;S_8 may be regarded as the oxidizing agent converting Cu(I)to Cu(II)and causing the polymerization of [WS_4]~(2-).The third-order nonlinear optical(NLO)properties are determined,and the results show that the cluster exhibits both large NLO absorptive and strong refractive behaviors.