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Radical mechanism of a place-exchange reaction of Au nanoparticles

Ionita, P., Gilbert, B.C. and Chechik, V. (2005) Radical mechanism of a place-exchange reaction of Au nanoparticles. Angewandte Chemie International, 44 (24). pp. 3720-3722. ISSN 1433-7851

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Abstract

Spin-trapping experiments show the formation of sulfur-centered radicals during a ligand-exchange reaction between Ph3P-protected Au nanoparticles and alkanethiols 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.

Item Type: Article
Institution: The University of York
Academic Units: The University of York > Chemistry (York)
Depositing User: York RAE Import
Date Deposited: 12 Aug 2009 14:59
Last Modified: 12 Aug 2009 14:59
Published Version: http://dx.doi.org/10.1002/anie.200500518
Status: Published
Publisher: John Wiley & Sons
Identification Number: 10.1002/anie.200500518
URI: http://eprints.whiterose.ac.uk/id/eprint/5548

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