A molecular theory of the dynamic solvent effects on an outer-sphere adiabatic electron transfer reaction is presented. The theory properly includes the role of the microscopic correlations present in a dense dipolar solvent in the dynamics of an electron-transfer reaction. The theory predicts that the translational modes of the solvent, hitherto neglected in most discussions on electron-transf...

4.3. Variability in cytochrome groups. . . . . . . . . . . . . . 4.4. List of cytochromes . . . . . . . . . . . . . . . . . . . . . . 4.4.1. Cytochrome-a group . . . . . . . . . . . . . . . . . 4.4.2. Cytochrome-b group . . . . . . . . . . . . . . . . . 4.4.3. Cytochrome-c group . . . . . . . . . . . . . . . . . 4.4.4. Cytochrome-d group . . . . . . . . . . . . . . . . . 5. Non-heme iron protei...

By using laser methods to prepare specific quantum states of gas-phase nitric oxide molecules, we examined the role of vibrational motion in electron transfer to a molecule from a metal surface free from the complicating influence of solvation effects. The signature of the electron transfer process is a highly efficient multiquantum vibrational relaxation event, where the nitrogen oxide loses h...

This mini-review focuses on recent experimental results and questions, which came up since the last more comprehensive reviews on the subject. We include a brief discussion of the different techniques used for time-resolved studies of electron transfer in photosystem I (PS I) and relate the kinetic results to new structural data of the PS I reaction centre.

An engineered form of iso-1-cytochrome c with lysine 73 mutated to histidine is shown to increase by nearly 500-fold the rate of a conformational gate that modulates the rate of electron transfer into this protein. This result demonstrates the potential of protein engineering to provide electron transfer gates with tailored properties. The pH dependence of the rate of the conformational electro...

Electron-electron coincidence spectra of Ar-Kr clusters after photoionization have been measured. An electron with the kinetic energy range from 0 to approximately 1 eV is found in coincidence with the Ar 3s cluster photoelectron. The low kinetic energy electron can be attributed to an Ar + Kr+ + Kr+ final state which forms after electron transfer mediated decay. This autoionization mechanism r...

The reaction mechanisms by which antioxidants can exert their activity are: hydrogen atom transfer (HAT), proton coupled electron transfer (PCET), sequential proton loss electron transfer (SPLET), single electron transfer proton transfer (SET-PT), radical adduct formation, and sequential proton loss hydrogen atom transfer. The antioxidative activity of different compounds (flavones, flavonols, ...