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Diffusion-influenced excited-state reversible transfer reactions, +D, with two different lifetimes: Theories and simulations

Summary: Diffusion-influenced excited-state reversible transfer reactions,
+D, with two different lifetimes: Theories and simulations
Soohyung Park and Kook Joe Shina
School of Chemistry, Seoul National University, Seoul 151-747, Korea
Alexander V. Popovb
School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400
Noam Agmonc
Department of Physical Chemistry and the Fritz Haber Research Center, The Hebrew University, Jerusalem
91904, Israel
Received 25 March 2005; accepted 13 May 2005; published online 27 July 2005
We report accurate Brownian simulation results for the kinetics of the pseudo-first-order
diffusion-influenced excited-state reversible transfer reaction A*
+B C*
+D with two different
lifetimes using two different propagation algorithms. The results are used to test approximate
solutions for this many-particle problem. Available theories fail when one of the two reactions or
decay rate constants is large. To remedy this situation, we develop two uniform approximations,
which are based on introducing a generalized Smoluchowski term into the relaxation-time


Source: Agmon, Noam - Institute of Chemistry, Hebrew University of Jerusalem


Collections: Chemistry