Тип публикации: статья из журнала
Год издания: 2020
Идентификатор DOI: 10.1063/1.5131583
Аннотация: Magnetic Field Effects (MFEs) on the recombination of radicals, which diffuse on an infinite plane, are studied theoretically. The case of spin-selective diffusion-controlled recombination of Radical Pairs (RPs) starting from a random spin state is considered assuming uniform initial distribution of the radicals. In this situation,Показать полностьюreaction kinetics is described by a time-dependent rate coefficient K(t), which tends to zero at long times. Strong MFEs on K(t) are predicted that originate from the Delta g and hyperfine driven singlet-triplet mixing in the RP. The effects of spin relaxation on the magnetic field are studied, as well as the influence of the dipole-dipole interaction between the electron spins of the RP. In the two-dimensional case, this interaction is not averaged out by diffusion and it strongly affects the MFE. The results of this work are of importance for interpreting MFEs on lipid peroxidation, a magnetosensitive process occurring on two-dimensional surfaces of cell membranes.
Журнал: JOURNAL OF CHEMICAL PHYSICS
Выпуск журнала: Vol. 152, Is. 3
Номера страниц: 34103
ISSN журнала: 00219606
Место издания: MELVILLE
Издатель: AMER INST PHYSICS