The first octanuclear tin(IV)-oxosulfide cluster

摘要

The first octanuclear tin(IV)-oxosulfide complex (NH_4)_2(Et_4N)_4[Sn_8S_(12)O_4(SPh)_6]has been synthesized by mixing stoichiometric amount of Sn(SPh)_4 and (NH_4)_2 WOS_3 and thiophenol in DMF.The compound was crystallized in orthorhombic space group Cmcm,Z = 4,a=18.0463(4)A,b=15.7599(2)A,c=19.1914(5)A,a single crystal X-ray diffraction analysis revealed two coordinate modes of the tin atoms:five-coordinated distorted rectangular pyramid SnOS_4 and six-coordinated octahedron SnO_3S_3.