Radical trapping by gold chlorides forming organogold intermediates

被引：33

作者：

Aprile, Carmela

Boronat, Mercedes

Ferrer, Belen

Corma, Avelino

Garcia, Hermenegildo

机构：

[1] Univ Politecn Valencia, CSIC, Inst Tecnol Quim, Valencia 46022, Spain

[2] Univ Politecn Valencia, CSIC, Dept Quim, Valencia 46022, Spain

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 26期

关键词：

D O I：

10.1021/ja062000q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Organogold compounds arising from the trapping of carbon-centered radicals by gold chlorides (AuCl, AuCl3, and HAuCl4) and colloidal gold have been characterized by different spectroscopic techniques. Laser flash photolysis has provided kinetic evidence of the occurrence of radical trapping in the microsecond time scale, while theoretical calculations give the energetics of the elementary steps. The trapping of carbon radicals by gold species observed here may explain why the presence of radical initiators enhance dramatically the activity of gold catalysts for some reactions occurring through radical intermediates. Copyright © 2006 American Chemical Society.

引用

页码：8388 / 8389

页数：2

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