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From alcohols to sugars-how does the reactivity of alpha-hydroxyalkyl radicals change with structure? A quantitative examination by pulse radiolysis.

Abstract:

Rate constants are reported for the 1-electron reduction of the azo dye Orange II in water (pH 7.0) by 10 different alpha-hydroxy radicals. The radicals were created by pulse radiolysis of aqueous solutions of the corresponding alcohol/sugar. The rate constants varied from 1 x 10(8) to 2.7 x 10(9) mol(-1) dm(3) s(-1) and radicals with beta-hydroxy groups had the lowest rate constant. The reaction was found to be controlled by the reduction potentials of the radicals, with steric influences ha...

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Publication status:
Published

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Publisher copy:
10.1021/jp050216t

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Institution:
University of Oxford
Department:
Oxford, MSD, Oncology
Role:
Author
Journal:
The journal of physical chemistry. A
Volume:
109
Issue:
10
Pages:
2039-2042
Publication date:
2005-03-05
DOI:
EISSN:
1520-5215
ISSN:
1089-5639
URN:
uuid:f293aef0-5afd-48fd-b510-d5f55bcea39d
Source identifiers:
311012
Local pid:
pubs:311012
Language:
English

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