Theoretical description of spin-selective reactions of radical pairs diffusing in spherical 2D and 3D microreactors

The Journal of Chemical Physics
Konstantin L IvanovN N Lukzen

Abstract

In this work, we treat spin-selective recombination of a geminate radical pair (RP) in a spherical "microreactor," i.e., of a RP confined in a micelle, vesicle, or liposome. We consider the microreactor model proposed earlier, in which one of the radicals is located at the center of the micelle and the other one undergoes three-dimensional diffusion inside the micelle. In addition, we suggest a two-dimensional model, in which one of the radicals is located at the "pole" of the sphere, while the other one diffuses on the spherical surface. For this model, we have obtained a general analytical expression for the RP recombination yield in terms of the free Green function of two-dimensional diffusion motion. In turn, this Green function is expressed via the Legendre functions and thus takes account of diffusion over a restricted spherical surface and its curvature. The obtained expression allows one to calculate the RP recombination efficiency at an arbitrary magnetic field strength. We performed a comparison of the two models taking the same geometric parameters (i.e., the microreactor radius and the closest approach distance of the radicals), chemical reactivity, magnetic interactions in the RP and diffusion coefficient. Signific...Continue Reading

References

Mar 1, 1988·Mutation Research·C E VacaM Harms-Ringdahl
May 1, 1993·The American Journal of Clinical Nutrition·B Halliwell, S Chirico
Mar 22, 2000·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·V F Tarasov, M D Forbes
Aug 14, 2010·The Journal of Physical Chemistry. a·Konstantin L IvanovKiminori Maeda
Jan 15, 2011·Physical Review Letters·O BénichouR Voituriez
Mar 8, 2011·Physical Chemistry Chemical Physics : PCCP·Olga B MorozovaAlexandra V Yurkovskaya
Feb 7, 2012·Proceedings of the National Academy of Sciences of the United States of America·P J Hore
Feb 11, 2012·The Journal of Chemical Physics·Alexander M Berezhkovskii, Alexander V Barzykin
Mar 10, 2012·The Journal of Physical Chemistry. a·M TierschH J Briegel
Mar 17, 2012·Proceedings of the National Academy of Sciences of the United States of America·Kiminori MaedaP J Hore
Apr 3, 2012·Current Opinion in Neurobiology·Henrik Mouritsen, P J Hore
Aug 23, 2012·Topics in Current Chemistry·Martin Goez
Dec 12, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·J-F RupprechtR Voituriez
Mar 1, 1992·Journal of Fluorescence·B Medhage, M Almgren
Jan 16, 2014·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Valery F TarasovMalcolm D E Forbes

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Citations

Sep 3, 2016·The Journal of Chemical Physics·Emrys W EvansChristiane R Timmel
Jan 24, 2020·The Journal of Chemical Physics·Nikita N LukzenRenad Z Sagdeev

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