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(NH_4)_2WS_4,CuCl 和 NH_2OH·HCl 在吡啶溶液中反应可得到红色晶体 WCu_4S_4Cl_2(NC_5H_5)_6.晶体属于单斜晶系,空间群为为 C_(2h)~6-C2/c.晶胞参数为:a=14.883(9),b=12.580(6),c=20.318(9)(?);β=100.50(4)°;Z=4.结构用重原子法解出,经最小二乘法修正,偏离因子R=0.069.分子具有 C_2点群对称性,中心 W 原子以平面四方形形式和四个 Cu 原子结合.W—Cu间平均距离为2.673(?).该化合物为钨铜的混合金属原子簇化合物.
(NH_4) _2WS_4, CuCl and NH_2OH · HCl in pyridine solution, the red crystal WCu_4S_4Cl_2 (NC_5H_5) _6 was obtained.The crystal belongs to the monoclinic system with the space group C 2h ~ 6-C2 / c. As follows: a = 14.883 (9), b = 12.580 (6), c = 20.318 (9) (?); Β = 100.50 (4) °; Z = 4. The structure is solved by heavy atom method, Corrected, the deviation factor R = 0.069. The molecule has a cluster point C2 symmetry, and the center W atom is connected with four Cu atoms in a planar tetragonal form. The average distance between W and Cu is 2.673 (?). The compound is a mixture of tungsten and copper Metal cluster compounds.