Proton-Coupled Electron Transfer in the Reaction of 3,4-Dihydroxyphenylpyruvic Acid with Reactive Species in Various Media

Figure 12

Reaction free energies and activation barriers evaluating, respectively, the possibility of the mechanisms PT-ET, ET-PT, and CPCET, in the reaction of 3,4-DHPPA with in different media. For CPCET, the reaction involved is . For PT-ET, the partial reactions involved are , . For ET-PT, the partial reactions involved are , . ROH stands for 3,4-DHPPA.