mu(3)-Iodo-tri-mu(3)-sulfido-sulfidotris[tris(4-methoxyphenyl)phosphine- kP]tricopper(I)tungsten(VI) N,N-dimethylformide solvate

作者：Tang Guodong; Zhang Jinfang; Zhang Chi^*

来源：Acta Crystallographica Section E-Structure Reports Online, 2008, 64: M72-U718.

DOI：10.1107/S1600536807055997

A new W/S/Cu cluster, [Cu3WIS4(C21H21O3P)(3)]center dot C3H7NO, was formed by the reaction of ammonium tetrathiotungstate(VI), cuprous iodide and tris(4-methoxyphenyl) phosphine in N,N-dimethylformamide. The title compound exhibits a heavily distorted cubane-like skeleton in which the average Cu-I, Cu-S and W-mu(3)-S distances are 2.934, 2.302 and 2.249 angstrom, respectively. The W atom exhibits tetrahedral geometry, formed by three mu(3)-S and one terminal S atom; the W-S(terminal) bond length is 2.1426 (13) angstrom. Each Cu atom is coordinated by one P atom from a tris(4-methoxyphenyl) phosphine (mop), two mu(3)-S and one mu(3)-I atom, forming a distorted tetrahedral coordination geometry. Some of the mop ligand methyl groups have large librations. Together with the three neutral mop ligands, the title compound is neutral; this contrasts with the all-halogen-coordinated Mo/S/Ag clusters with the same structure, which carry negative charge.

• 出版日期2008-1
• 单位南京理工大学; 淮阴师范学院