化学学报 ›› 1988, Vol. 46 ›› Issue (7): 617-622.    下一篇

研究论文

用NMR法研究几种不对称双烃基硫桥六羰基二铁的异构化动力学

张启衍;朱承越;宋礼成;陈荣悌;陆秀菁;李国伟   

  1. 南开大学化学系;南开大学元素有机化学研究所
  • 发布日期:1988-07-15

NMR study on the kinetics and mechanisms of the isomerization reactions of some dialkylthiolatohexacarbonyldiiron complexes

ZHANG QIYAN;ZHU CHENGYUE;SONG LICHENG;CHEN RONGTI;LU XIUJING;LI GUOWEI   

  • Published:1988-07-15

本文用常规核磁共振方法研究了(苄基硫)(烃基硫)六羰基二铁(烃基为甲基、乙基)和动态核磁共振方法研究了(苄基硫)(叔丁基硫)六羰基二铁的异构化反应动力学, 提出了可能的反应机理, 讨论了影响反应速率的因素.

关键词: 反应动力学, 核磁共振谱法, 铁络合物, 羰基络合物, 质子磁共振谱法, 异构化反应, 硫络合物, 桥环化合物

The kinetics and mechanisms of the isomerization reactions of three (dialkylthiolato)hexacarbonyldiiron complexes (m-PhCH2S)(m-RS)Fe2(CO)6, (R = Me, Et, Me3C) have been studied by means of 1H NMR. The related kinetic parameters have been obtained and the probable mechanism of the reactions has been proposed. The isomerization reactions proceed most probably via a transition state involving the bond relaxation of one S-Fe bond and the rotation of another S-Fe bond.

Key words: REACTION KINETICS, NMR SPECTROMETRY, IRON COMPLEX, CARBONYL COMPLEX, PROTON MAGNETIC RESONANCE SPECTROMETRY, ISOMERIZATION REACTION, SULFIDE COMPLEX, BRIDGE COMPOUNDS

中图分类号: