Reduction potential of the tert-butylperoxyl radical in aqueous solutions

Tomi Nath Das, Dhanasekaran Thirunavukkarasu, Z. B. Alfassi, P. Neta

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

Rate constants for the oxidation of tert-butyl hydroperoxide anion by several oxidants were determined by pulse radiolysis. Since the reduction potentials of the oxidants are much higher than the t-BuO2, the observed rate constants suggest that the self-exchange rate for t-BuO2/r-BuO2 is very slow and that it would be difficult to establish rapid equilibrium by pulse radiolysis with a suitable redox pair. Therefore, to determine the reduction potential for this peroxy radical, the forward and reverse rate constants for reaction, t-BuO2 ·+Fe(CN)6 4- ⇔ t-BuO2 -+Fe(CN)6 3-, were measured independently. The forward rate constant was measured by kinetic spectrophotometric pulse radiolysis in N2O-saturated solutions.

Original languageEnglish
Pages (from-to)280-284
Number of pages5
JournalJournal of Physical Chemistry A
Volume102
Issue number1
DOIs
Publication statusPublished - 1 Jan 1998
Externally publishedYes

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Pulse Radiolysis
Radiolysis
Rate constants
aqueous solutions
Oxidants
radiolysis
tert-Butylhydroperoxide
pulses
Oxidation-Reduction
Anions
Oxidation
Kinetics
anions
oxidation
kinetics

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Reduction potential of the tert-butylperoxyl radical in aqueous solutions. / Das, Tomi Nath; Thirunavukkarasu, Dhanasekaran; Alfassi, Z. B.; Neta, P.

In: Journal of Physical Chemistry A, Vol. 102, No. 1, 01.01.1998, p. 280-284.

Research output: Contribution to journalArticle

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