The Journal of Physical Chemistry

Substituent effects on rates of one-electron oxidation of phenols by the radicals chlorine dioxide, nitrogen dioxide, and trioxosulfate (1-)

ZB Alfassi, RE Huie, P Neta

Index: Alfassi, Zeev B.; Huie, Robert E.; Neta, P. Journal of Physical Chemistry, 1986 , vol. 90, # 17 p. 4156 - 4158

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Citation Number: 73

Abstract

Rate constants for the reactions of CIOz, NOz, and SO3-radicals with several substituted phenoxide ions have been measured by pulse radiolysis. They vary from the immeasurably slow (< lo4) to almost diffusion-controlled rates (> lo9 M-'sl) and depend on the redox potentials of the phenoxide ions and the inorganic radicals. With the weak oxidant SO; reverse reactions were observed in certain cases; ie, the phenoxyl radical oxidizes sulfite ...