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

P Ionita; A Caragheorgheopol; B C Gilbert; V Chechik

doi:10.1021/ja0265456

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

P Ionita, A Caragheorgheopol, B C Gilbert, V Chechik

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	9048-9049
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	124
Issue number	31
DOIs	https://doi.org/10.1021/ja0265456
Publication status	Published - 7 Aug 2002

Keywords

CLUSTER MOLECULES
GOLD

Access to Document

10.1021/ja0265456

http://dx.doi.org/10.1021/ja0265456

Cite this

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

abstract = "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.",

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AU - Ionita, P

AU - Caragheorgheopol, A

AU - Gilbert, B C

AU - Chechik, V

PY - 2002/8/7

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N2 - 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.

AB - 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.

KW - CLUSTER MOLECULES

KW - GOLD

U2 - 10.1021/ja0265456

DO - 10.1021/ja0265456

M3 - Article

SN - 0002-7863

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SP - 9048

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JO - Journal of the American Chemical Society

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