Influence of the nuclearity of copper(II) chloride complexes on their activity in catalytic C-Cl bond metathesis

被引：0
|
作者：
E. N. Golubeva
V. I. Pergushov
A. I. Kokorin
D. I. Kochubey
V. V. Kriventsov
N. A. Zubareva
机构：
[1] Moscow State University,Faculty of Chemistry
[2] Russian Academy of Sciences,Semenov Institute of Chemical Physics
[3] Russian Academy of Sciences,Boreskov Institute of Catalysis, Siberian Branch
来源：
Kinetics and Catalysis | 2008年 / 49卷
关键词：
CuCl; Silica Surface; Copper Complex; Metathesis; Aerosil;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Catalytic systems containing mainly mononuclear (CuCl42−) or dinuclear (Cu2Cl62−) tributylbenzylammonium chlorocuprates are prepared by adsorption on silica surfaces of different structures (Aerosil and Silokhrom). Using ESR, XANES, and electronic spectroscopy, the CuCl42− ions are shown to be reduced rapidly under conditions of C-Cl bond metathesis, whereas the dinuclear chlorocuprates are relatively stable. A correlation between the number of copper ions in the chlorocuprate anion and its catalytic activity is established: the mononuclear complexes are several times more active than their dinuclear counterparts.
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页码：737 / 742
页数：5
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