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Issue 7, 1982
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Radical-cations as reference chromogens in kinetic studies of ono-electron transfer reactions: pulse radiolysis studies of 2,2′-azinobis-(3-ethylbenzthiazoline-6-sulphonate)

Abstract

Electrophilic free radicals such as OH˙, RS˙, CCl3O2˙, Br2˙, and (SCN)2· react rapidly with 2,2′-azinobis-(3-ethylbenzthiazoline-6-sulphonate)(ABTS) to form the radical-cation ABTS˙+, λmax. 415 nm (ε 3.6 × 104 l mol–1 cm–1). Absolute rate constants for these electron-transfer reactions have been determined by pulse radiolysis. Results suggest that ABTS˙+ is likely to prove a useful reference free radical, not only for the study of reactions in which a free radical is the electron acceptor, but also in studies of reactions of organic radicals with sulphydryl compounds.

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Article information


J. Chem. Soc., Perkin Trans. 2, 1982, 805-812
Article type
Paper

Radical-cations as reference chromogens in kinetic studies of ono-electron transfer reactions: pulse radiolysis studies of 2,2′-azinobis-(3-ethylbenzthiazoline-6-sulphonate)

B. S. Wolfenden and Robin. L. Willson, J. Chem. Soc., Perkin Trans. 2, 1982, 805
DOI: 10.1039/P29820000805

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