Reactions of perfluoroethyl radicals with ethane, n-butane and isobutane

Abstract

The reactions of C₂F₅ radicals with ethane, n-butane and isobutane have been studied, using perfluoroethyl iodide as the free radical source. All rate constants are based on an assumed value of 10¹⁴cm³mol^–1s^–1 for the rate constant of C₂F₅ radical dimerization. The Arrhenius parameters measured are: [graphic omitted] Analysis of the alkyl iodides in the products allows calculation of the Arrhenius parameters for C₂F₅ attack at specific sites in the n-butane molecule, providing the values : [graphic omitted]