化学学报 ›› 1990, Vol. 48 ›› Issue (8): 742-747. 上一篇    下一篇

研究论文

第二过渡金属双核物的从头算研究 Ⅱ:四羟基桥联双核物的化学键

林梦海;张乾二   

  1. 厦门大学化学系
  • 发布日期:1990-08-15

The studies on dinuclear compounds of the second transition series II. teh chemical bond of dinuclear compounds with tetracarboxylic bridges

LIN MENGHAI;ZHANG QIANER   

  • Published:1990-08-15

本文用从头计算方法讨论第二过渡金属M2(O2CR)4L2体系的电子结构(采用有效核芯势价基), 计算结果表明, 金属原子M-M间除了定域的σ,π键以外, 还有一个离域的大π键, 大π键由金属与配体四羟基组成, 这种电子结构较好地解释了多年来波谱实验提出的疑问。

关键词: 羟基, 钼络合物, 化学键, 电子结构, 从头计算法, 过渡金属络合物, 双核络合物, 桥环化合物, 钌络合物

Calculation by the ab initio effective core potentials method on the M2(O2CR)4L2 species (M = Mo, Tc, Ru, Rh) was performed and the electronic structure of these mols. is discussed. There are not only localized s, p bonds, but also delocalized bonds between metals in these mols. The delocalized bonds consist of two metal atoms and four carboxyl ligands.a

Key words: HYDROXY GROUP, MOLYBDENUM COMPLEX, CHEMICAL BONDS, ELECTRONIC STRUCTURE, AB INITIO CALCULATION, TRANSITION METAL COMPLEX, DINUCLEAR COMPLEX, BRIDGE COMPOUNDS, RUTHENIUM COMPLEX

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