Photoinduced electron transfer and geminate recombination in liquids on short time scales: Experiments and theory

The Journal of Chemical Physics
A A GounM D Fayer

Abstract

The coupled processes of intermolecular photoinduced forward electron transfer and geminate recombination between the (hole) donor (Rhodamine 3B) and (hole) acceptors (N,N-dimethylaniline) are studied in three molecular liquids: acetonitrile, butyronitrile, and benzonitrile. Two color pump-probe experiments on time scales from approximately 100 fs to hundreds of picoseconds give information about the depletion of the donor excited state due to forward electron transfer and the survival kinetics of the radicals produced by forward electron transfer. The data are analyzed with a model presented previously that includes distance dependent forward and back electron transfer rates, donor and acceptor diffusion, solvent structure, and the hydrodynamic effect in a mean-field theory of through solvent electron transfer. The forward electron transfer is in the normal regime, and the Marcus equation for the distance dependence of the transfer rate is used. The forward electron transfer data for several concentrations in the three solvents are fitted to the theory with a single adjustable parameter, the electronic coupling matrix element Jf at contact. Within experimental error all concentrations in all three solvents are fitted with the ...Continue Reading

References

May 1, 1985·Physical Review. B, Condensed Matter·D L Huber

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Citations

Sep 1, 2006·The Journal of Chemical Physics·Ksenija GlusacM D Fayer
Jan 11, 2007·The Journal of Chemical Physics·V S Gladkikh, A I Burshtein
Apr 12, 2017·The Journal of Physical Chemistry. B·Joseph E ThomazMichael D Fayer
Apr 5, 2013·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Christian F SailerEberhard Riedle
Oct 31, 2014·Physical Chemistry Chemical Physics : PCCP·Arnulf Rosspeintner, Eric Vauthey
Nov 15, 2017·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Ankur A Awasthi, Prabhat K Singh
Aug 6, 2020·The Journal of Chemical Physics·Gonzalo Angulo, Arnulf Rosspeintner
Jul 3, 2020·The Journal of Chemical Physics·Christoph NançozEric Vauthey
Jan 29, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·David E MoilanenM D Fayer
Dec 14, 2016·Chemical Reviews·Tatu KumpulainenEric Vauthey
Oct 17, 2017·The Journal of Physical Chemistry. B·Ankur A Awasthi, Prabhat K Singh
Aug 17, 2012·The Journal of Physical Chemistry. a·Arnulf RosspeintnerEric Vauthey
Sep 15, 2021·The Journal of Physical Chemistry. B·Christopher A Rumble, Eric Vauthey
Dec 8, 2006·The Journal of Physical Chemistry. a·Subhadip GhoshKankan Bhattacharyya
Jun 15, 2007·Journal of the American Chemical Society·D B SpryM D Fayer

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