【摘要】 双核络合物Mo₂^（V）S₄[S₂P（OEt）₂]₂（Ⅰ）,W₂^（V）S₄[S₂P（OEt）₂]₂（Ⅱ）晶体为异质同晶,属单斜晶系,空间群P2₁/a,晶胞参数为（Ⅰ）a=14.044（2）,b=10.341（1）,c17.821（4）,β=112.55（1）°;（Ⅱ）a=14.045（3）,b=10.341（1）,c=17.944（4）,β=113.09（2）°.晶胞内含有4个分子,密度计算值分别为1.919;2.400g·em^-3.用Patterson法和差值Fourier解出结构,并经全矩阵最小二乘法精修,最终偏离因子分别为0.063和0.047.结构中每个金属原子由5个硫原予形成四角锥构型,两个四角锥通过共边相互联结,M—M间距分别为2.826（1）和2.824（0）.更多还原

【Abstract】 Two binuclear complexes Mo₂^（V）S₄[S₂P（OEt）₂]₂（Ⅰ）,W_<sup>（V）S₄[S₂P（OEt）₂]₂（Ⅱ）are isomorphous,monoclinic crystals in the space group P2₁/a with a=14.044（2）, b=10.341（l）,c=17.821（4）,β=112.55（1）° in（Ⅰ）and a=14.045（3）,b= 10.341（1）,c=17.944（4）,β=113.09（2）°in（Ⅱ）respectively,Z=4.The structures were solved by the usual patterson method and Fourier techniques.The refinement of these two crystals using full-matrix least-squares methods led to a final deviation value R of 0.063 for（Ⅰ）and 0.047 for（Ⅱ）respectively.Each metal atom is bound to two bridging sulfur atoms（S_b）,two sulfur donor atoms belong to one[S₂P（OEt）₂]^-ligand（S_l）and one terminal sulfur atom（S_t）respectively,so that a square pyramidal coordination sphere is formed.The M—M distances are 2,826（1）and 2,824（0）respectively.更多还原