EPR study of a place-exchange reaction on Au nanoparticles: Two branches of a disulfide molecule do not adsorb adjacent to each other

被引：83

作者：

Ionita, P

Caragheorgheopol, A

Gilbert, BC

Chechik, V

机构：

[1] Romanian Acad, Inst Chem Phys IG Murgulescu, Bucharest 77208, Romania

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

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2002年 / 124卷 / 31期

关键词：

D O I：

10.1021/ja0265456

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An EPR study of a place-exchange reaction of a diradical disulfide with butanethiol-protected Au nanoparticles showed that the two branches of the disulfide molecule do not adsorb adjacent to each other on the Au surface. The most likely mechanism includes adsorption of only one branch of the disulfide molecule in the exchange process. The exchange reaction was found to be zeroth-order with respect to the diradical, indicative of a dissociative "SN1"-type mechanism. Copyright © 2002 American Chemical Society.

引用

页码：9048 / 9049

页数：2

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