Pulse radiolytic investigations of the catalyzed disproportionation of peroxy radicals. Aqueous cupric ions

Joseph Rabani; Dina Klug-Roth; J. Lilie

doi:10.1021/j100628a018

Pulse radiolytic investigations of the catalyzed disproportionation of peroxy radicals. Aqueous cupric ions

Joseph Rabani^*, Dina Klug-Roth, J. Lilie

^*Corresponding author for this work

Institute of Chemistry

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Abstract

The catalytic effect cf Cu²⁺ in enhancing the dismutation of the peroxy radicals HO₂ and O₂^- has been investigated. Cu²⁺ ions react with 0₂^- (k = 8 × 10⁹ M^-1 sec^-1) and with HO₂ radicals (k ≅ 1 × 10⁸ M^-1 sec^-1). The catalytic effect involves alternate reduction and oxidation of the copper. Cu⁺ reacts with O^2- with a rate constant of ∼10¹⁰. HO₂ oxidizes Cu⁺, k > 10⁹ M^-1 sec^-1. The uv absorption spectrum of Cu⁺ has been measured in formate and in methanol solutions.

Original language	English
Pages (from-to)	1169-1175
Number of pages	7
Journal	Journal of Physical Chemistry
Volume	77
Issue number	9
DOIs	https://doi.org/10.1021/j100628a018
State	Published - 1973

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title = "Pulse radiolytic investigations of the catalyzed disproportionation of peroxy radicals. Aqueous cupric ions",

abstract = "The catalytic effect cf Cu2+ in enhancing the dismutation of the peroxy radicals HO2 and O2- has been investigated. Cu2+ ions react with 02- (k = 8 × 109 M-1 sec-1) and with HO2 radicals (k ≅ 1 × 108 M-1 sec-1). The catalytic effect involves alternate reduction and oxidation of the copper. Cu+ reacts with O2- with a rate constant of ∼1010. HO2 oxidizes Cu+, k > 109 M-1 sec-1. The uv absorption spectrum of Cu+ has been measured in formate and in methanol solutions.",

author = "Joseph Rabani and Dina Klug-Roth and J. Lilie",

year = "1973",

doi = "10.1021/j100628a018",

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AU - Rabani, Joseph

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N2 - The catalytic effect cf Cu2+ in enhancing the dismutation of the peroxy radicals HO2 and O2- has been investigated. Cu2+ ions react with 02- (k = 8 × 109 M-1 sec-1) and with HO2 radicals (k ≅ 1 × 108 M-1 sec-1). The catalytic effect involves alternate reduction and oxidation of the copper. Cu+ reacts with O2- with a rate constant of ∼1010. HO2 oxidizes Cu+, k > 109 M-1 sec-1. The uv absorption spectrum of Cu+ has been measured in formate and in methanol solutions.

AB - The catalytic effect cf Cu2+ in enhancing the dismutation of the peroxy radicals HO2 and O2- has been investigated. Cu2+ ions react with 02- (k = 8 × 109 M-1 sec-1) and with HO2 radicals (k ≅ 1 × 108 M-1 sec-1). The catalytic effect involves alternate reduction and oxidation of the copper. Cu+ reacts with O2- with a rate constant of ∼1010. HO2 oxidizes Cu+, k > 109 M-1 sec-1. The uv absorption spectrum of Cu+ has been measured in formate and in methanol solutions.

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Pulse radiolytic investigations of the catalyzed disproportionation of peroxy radicals. Aqueous cupric ions

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