Electron transfer reactions intramolecular long-distance

J. R. Miller, L. T. Calcaterra, and G. L. Closs, Intramolecular long-distance electron transfer in radical ions. The effects of free energy and solvent on the reaction rates, J. Am. Chem. Soc. 106 3047-3049 (1984). 

Miller, J. R., Calcaterra, L. T., Closs, G. L., Intramolecular Long distance Electron Transfer in Radical Anions. The Effect of Free Energy and Solvent on the Reaction Rates, J. Am. Chem. Soc., 1984, 106, 3047 3049. 

Electron-Transfer Reactions. It is well known that thermal and photochemical electron-transfer reactions exhibit characteristic pressure dependences and associated volumes of activation (see Sections II, III, and VI). It is therefore realistic to expect that photoinduced thermal electron-transfer reactions will also exhibit a characteristic pressure dependence that should reveal mechanistic information on the nature of the reaction. Recent interest in the mechanistic understanding of long-distance electron-transfer reactions prompted an investigation of the effect of pressure on intramolecular electron transfer in ruthenium-modified cytochrome c [151] (a typical example of a closely related intermolecular electron-transfer reaction was... 

Another interesting topic concerning radiation-induced reactions in proteins in aqueous solution concerns intramolecular long-distance electron transfer in proteins [85,98,101]. Respective studies were performed using pulse radiolysis... 

This mechanism requires at least two rapid electron transfer steps and, consequently, Ragsdale and co-workers initially proposed fast intramolecular electron transfer between CODH and ACS [137]. However, this is not compatible with the long distance that separates the ACS A-cluster and the CODH redox centers [90,91]. Under in vivo conditions another redox partner could be involved. In this scheme, it is tacitly assumed that CO is required for the first one-electron reaction as no paramagnetic species is detected upon reductive activation of the enzyme in the absence of CO [138]. 

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