化学学报 ›› 2000, Vol. 58 ›› Issue (7): 912-916. 上一篇    下一篇

研究论文

双核草酸钼的合成与结构

刘广;章士伟   

  1. 北京大学化学与分子工程学院;北京大学分子动态与稳态国家重点实验室
  • 发布日期:2000-07-15

Synthesis and structure of binuclear molybdenum oxalate

Liu An;Zhang Shiwei   

  • Published:2000-07-15

合成了新化合物(N~2H~6)~0~.~5[(CH~3)~4N]{[MoO(H~2O)C~2O~4]~2(μ^2-O)~2}·H~2O,并运用元素分析、红外和单晶X衍射对其结构进行了表征。测定结果证实该化合物有两个共边连接的钼氧八面体,钼原子都是正五价,且有Mo-Mo键存在,每个钼上有一个螯合配位的草酸根。该化合物属单斜晶系P2~1/c,a=0.6059(1)nm,b=1.6658(3)nm,c=1.8249(4)nm,β=94.02(3)°,V=1.8374(6)nm^3,R~1=0.0337,wR~2=0.0908。

关键词: 钼络合物, 草酸P, 双核络合物, 晶体结构

A new compound (N~2H~6)~0~.~5[(CH~3)~4N]{[MoO(H~2O)C~2O~4]~2(μ^2-O) ~2}·H~2O was prepared and its structure was determined by X-ray diffraction analysis. The compound has two edge-shared molybdenum- oxygen octahedra and all the Mo atoms are of charge +5. Mo centers are chelated by oxalates. The crystal is monoclinic, space group P2~1/c, a=0.6059(1) nm, b=1.6658(3) nm, c=1.8249(4) nm, β=94.02(3)°, V=1. 8374(6) nm^3, R~1=0.0337, wR~2=0.0908.

Key words: MOLYBDENUM COMPLEX, OXALIC ACID P, DINUCLEAR COMPLEX, CRYSTAL STRUCTURE

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