Dissociative electron transfer reactions

Precursors of Solvated Electrons in Radiobiological Physics and Chemistry

“…In this case, the trapped electron can still transfer to a dopant molecule having a positive electron affinity. If the resulting anion state is dissociative, the phenomena is called dissociative electron transfer (DET). − The process is essentially the same as DEA, with the difference that it involves an electron transfer between two localized quantum states. It occurs within doped solids and liquids within a time scale of ≤20 fs, i.e., a time scale similar to that of DEA.…”

A Critical Analysis of Chemical and Electrochemical Oxidation Mechanisms in Li-Ion Batteries

“…Especially in the condensed phase, it can be difficult to determine if electron transfer reactions are stepwise (with charge transfer followed by additional bond cleavage and formation steps) or concerted . Even if intermediates form following charge transfer in a stepwise mechanism, those intermediates may be too short-lived or at overly low concentrations to be experimentally observed.…”

“…The calculated standard oxidation potential for reaction 2 is E°= 5.80 V using the free energies of Especially in the condensed phase, it can be difficult to determine if electron transfer reactions are stepwise (with charge transfer followed by additional bond cleavage and formation steps) or concerted. 36 Even if intermediates form following charge transfer in a stepwise mechanism, those intermediates may be too short-lived or at overly low concentrations to be experimentally observed. Although the calculated standard oxidation potential of the concerted dissociative oxidation given by reaction 2 is in better agreement with experimental characterization compared to that of reaction 1, we cannot at present say with certainty if electrochemical EC oxidation follows a stepwise or concerted pathway.…”