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The Mechanism Of The Hydrogen Abstraction Process By Photo-Excited Ketones

Sengupta, D and Sumathi, R and Chandra, AK (1991) The Mechanism Of The Hydrogen Abstraction Process By Photo-Excited Ketones. In: New Journal of Chemistry, 15 (12). 901 -907.

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Official URL: http://pubs.rsc.org/en/Journals/JournalIssues/NJ

Abstract

Qualitative potential energy surfaces for hydrogen abstraction from alkanes containing primary, secondary and tertiary C-H bonds by a photo-excited ketone have been reported, The results suggest that the activation barriers for these processes decrease in the order primary > secondary > tertiary in agreement with the observed trend in the rate constants. The analysis of the electronic structure of the transition-state reveal that electron-transfer from hydrocarbon to ketone and formation of a new bond are almost synchronous in the hydrogen transfer process. The tunneling of hydrogen is not important in the normal temperature region even though the barriers are small.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Royal Society of Chemistry.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 07 Dec 2010 06:44
Last Modified: 07 Dec 2010 06:44
URI: http://eprints.iisc.ernet.in/id/eprint/34246

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