Reactions of radical anions. Part VII. Disproportionation of the radical anion of acenaphthenequinone

Abstract

An e.s.r. study of the disproportionation of the radical-anion of acenaphthenequinone, 2(AQ^–·M⁺) [graphic omitted] (AQ^2–2M⁺)+ AQ gives the results at –10° for Li⁺, Na⁺, K⁺, Rb⁺, and Cs⁺: K₁, 38,200, 1110, 86·5, 35·9, and 10,800; ΔG_1a°, –5·8, –4·0, –2·3, –2·0, and –4·7 kcal. mole^–1; ΔH_1a°, –13·8, –5·8, –7·3, –6·9, and –6·7 kcal. mole^–1; ΔS_1a°, –30·5, –6·9, –19·0, –18·5, and –7·6 cal. deg.^–1 mole^–1 respectively.