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Evidence for diffusion-controlled electron transfer in exciplex formation reactions. Medium reorganisation stimulated by strong electronic coupling.
MedLine Citation:
PMID:  14560816     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Diffusion-controlled rates of formation were found from the temperature dependence of apparent quenching rate constants for exciplexes, when the driving force of excited-state electron transfer -0.1 < deltaG(ET)* < +0.1 eV. This is inconsistent with the conventional mechanism of electron-transfer reactions, involving preliminary reorganisation of the medium and reactants, and provides strong support for the mechanism of medium reorganisation stimulated by strong electronic coupling of locally excited and charge-transfer states.
Authors:
Michael G Kuzmin; Irina V Soboleva; Elena V Dolotova; Denis N Dogadkin
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology     Volume:  2     ISSN:  1474-905X     ISO Abbreviation:  Photochem. Photobiol. Sci.     Publication Date:  2003 Sep 
Date Detail:
Created Date:  2003-10-16     Completed Date:  2004-01-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101124451     Medline TA:  Photochem Photobiol Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  967-74     Citation Subset:  -    
Affiliation:
Department of Chemistry, Moscow M. V. Lomonosov University, 119992 Moscow, Russia. kuzmin@photo.chem.msu.ru
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