Radical mechanism of a place-exchange reaction of an nanoparticles

被引：46

作者：

Ionita, P ^{[1
]}

Gilbert, BC ^{[1
]}

Chechik, V ^{[1
]}

机构：

[1] Univ York, Dept Chem, York YO10 5DD, N Yorkshire, England

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2005年 / 44卷 / 24期

关键词：

D O I：

10.1002/anie.200500518

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) Spin-trapping experiments show the formation of sulfur-centered radicals during a ligand-exchange reaction between Ph 3P-protected Au nanoparticles and alkane-thiols in air (see picture). Oxidation of the alkanethiols by molecular O2 adsorbed on the nanoparticles is proposed as the key step. The feasibility of such a process is demonstrated by the Au-nanoparticle-catalyzed oxidation of BH4 - and tBuOOH with air. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：3720 / 3722

页数：3

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