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.

引用

页码：737 / 742

页数：5

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