Absolute rate constants for hydrocarbon autoxidation. V. The hydroperoxy radical in chain propagation and termination

Abstract

The hydroperoxy radical (HOO·) is the main chain propagating and terminating radical in the autoxidation of dilute solutions of 1,4-cyclohexadiene and 1,4-dihydronaphthalene in chlorobenzene at 30 °C. The absolute rate constant for the self-reaction of hydroperoxy radicals (chain termination) in nonpolar solvents is very much higher than previously reported values in aqueous media.