(μ-烯丙基硫)(μ-苯基硫)六碳基二铁亲核取代反应动力学的研究

高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (2): 166.

(μ-烯丙基硫)(μ-苯基硫)六碳基二铁亲核取代反应动力学的研究

陈荣悌, 张启衍, 宋礼成, 朱承越

南开大学化学系

收稿日期:1983-09-08 出版日期:1985-02-24 发布日期:1985-02-24

A Study on the Kinetics and Mechanism of Nucleophilic Substitution Reaction of μ-Allylthio-μ-Phenylthio-Bis (Tricarbonyliron)

Chen Rongti, Zhang Qiyan, Song Lichen, Zhu Chengyue

Department of Chemistry, Nankai University, Tianjin

Received:1983-09-08 Online:1985-02-24 Published:1985-02-24

摘要/Abstract

摘要： 一、实验部分1.药品配合物Fe₂(CO)₆(μ-SCH₂CH=CH₂)(μ-SPh)(A)的合成及性质见参考文献[1],配体PPh₂Et系参照文献[2]的方法合成,b.p.(22mmHg)=184℃,d=1.019(26℃),PPh₃、甲苯为分析纯。因为配合物A遇氧分解,所有操作均在严格绝氧条件下进行。

Abstract: The kinetics of nucleophilic substitution reaction of Fe₂(CO)₆(μ-SCH₃CH=CH₂)-(μ-SPh) with PPh₃ and PPh₂Et has been studied.The results showed that.PPh₃ could displace one carbonyl of the complex while with PPh₃Et as substi-tuent a two step substitution could exist in the complex.The reaction followed a two-term rale law.One term implied S_N2 substitution and the other implied isomerization.The rate constants for these reactions and their corresponding activation parameters have been determined, Amechanism for this reaction has been proposed.

TrendMD:

陈荣悌, 张启衍, 宋礼成, 朱承越. (μ-烯丙基硫)(μ-苯基硫)六碳基二铁亲核取代反应动力学的研究. 高等学校化学学报, 1985, 6(2): 166.

Chen Rongti, Zhang Qiyan, Song Lichen, Zhu Chengyue. A Study on the Kinetics and Mechanism of Nucleophilic Substitution Reaction of μ-Allylthio-μ-Phenylthio-Bis (Tricarbonyliron). Chem. J. Chinese Universities, 1985, 6(2): 166.