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Electron transfer in a microscopically inhomogeneous medium
Author(s) -
Rips Ilya,
Jortner Joshua
Publication year - 1987
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560320733
Subject(s) - dielectric , relaxation (psychology) , polar , condensed matter physics , population , electron , dielectric function , distribution function , function (biology) , electron transfer , chemical physics , chemistry , molecular physics , materials science , physics , statistical physics , thermodynamics , quantum mechanics , psychology , social psychology , demography , evolutionary biology , sociology , biology
We explore the implications of static disorder on electron transfer ( ET ) in a microscopically inhomogeneous polar medium, where the environment of each solute is characterized by a single dielectric relaxation time, τ, with the distribution function of τ being related to the complex dielectric susceptibility. For the interesting situation of solvent‐controlled ET , the decay of the population probability is nonexponential, which can be expressed in terms of a cumulant expansion. The microscopic decay function can be related to the macroscopic step‐response function of the dielectric medium.