波谱学杂志 ›› 1990, Vol. 7 ›› Issue (1): 55-60.

• 研究论文 • 上一篇    下一篇

高价钼络合物化学——(Ⅱ) ESR和磁化率研究五价钼半胱氨酸体系的酸解反应

洪茂椿, 黄致盈, 刘汉钦   

  1. 中国科学院福建物质结构研究所, 福州市结构化学开放研究实验室
  • 收稿日期:1989-01-25 修回日期:1989-04-05 出版日期:1990-03-05 发布日期:2018-01-23

THE CHEMISTRY OF HIGH-VALENCE MOLYBDENUM:(Ⅱ)ESR AND MAGNETIC SUSCEPTIBILITY STUDY ON THE DISSOCIATION OF DIMOLYBDENUM (V)-CYSTEINE COMPLEXES

Hong Maochun, Huang Zhiying, Liu Hanqin   

  1. Fuzkou Laboratory of Structural Chemistry, and Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002 Fujian China
  • Received:1989-01-25 Revised:1989-04-05 Online:1990-03-05 Published:2018-01-23

摘要: 本文利用ESR和磁化率为手段研究了二钼半胱氨酯系列化合物,Na2Mo2(μ2-X)(μ2-Y)-O2(cyst)2(X=Y=O,(Ⅰ);X=O,Y=S,(Ⅱ);X=Y=S,(Ⅲ)),在不同浓度的盐酸溶液中离解的机制,并讨论了不同桥原子对该系列化合物化学稳定性的影响。

关键词: 二钼半胱氨酸络合物, ESR, 酸解反应

Abstract: In hydrochloric acid, the dimolybdenum (V)-cysteine complexes, Na2Mo2O2 (μ2-X)(μ2-Y)(cysteine)2,(X=Y=oxygen(Ⅰ);X=oxygen,Y=sulfur(Ⅱ), give an ESR signal at 1.947, the strength of the signal increases with the enhancement of the concentration of hydrochloric acid. The complex (Ⅲ), Na2Mo2O2 (μ2-S)2(cysteine)2, gives an analogous signal only in concentrated acid. By comparing the data of magnetic susceptibility and electron spectrum, the dissociation mechanism of the complexes in hydrochloric acid is assumed and the chemical stability of the complexes affected by bridged atoms is also discussed.

Key words: Dimolybdenum (V)-cysteine complexes, ESR, Dissociation