Exergonic proton transfer following

Strongly Exergonic Proton Transfer Following Electron... 

As noted in the Introduction, if electron transfer is strongly endergonic, the following proton transfer may be strongly exergonic. For example, oxidation of a phenol can increase the acidity of the resulting phenoxyl radical cation by around... 

The Marcus relation and the Hammond postulate. According to Equation (9.18), electron-transfer reactions resemble proton-transfer reactions in respect of the way that the free energy of activation (AG, ) is affected by the observed free energy of reaction (AGp, ). It follows from Equation (9.18) that the more negative is AG jj (i.e., the higher is ATobs), the lower will be AG, , i.e., the higher will be the rate constant obs- The more exergonic... 

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