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7 April 2000 Z .Chemical Physics Letters 320 2000 262268
 

Summary: 7 April 2000
Z .Chemical Physics Letters 320 2000 262­268
www.elsevier.nlrlocatercplett
Dual asymptotic behavior in geminate
diffusion-influenced reaction
Kyril M. Solntsev 1
, Noam Agmon )
The Fritz Haber Research Center, Department of Physical Chemistry, The Hebrew UniÕersity, Jerusalem 91904, Israel
Received 6 December 1999; in final form 4 February 2000
Abstract
The kinetics of excited-state proton transfer to solvent from the strong photoacid 5-cyano-2-naphthol exhibits two
different power-law asymptotic tails for acid and base, arising from competition between reversible and irreversible geminate
reprotonation. We show that the data are in quantitative agreement with a recently developed theory for this diffusion-in-
fluenced reaction. q 2000 Elsevier Science B.V. All rights reserved.
1. Introduction
The study of diffusion-influenced reactions in so-
lution was initiated by Smoluchowski longer than 80
w xyears ago 1 . The simplest case is geminate recom-
Z .bination GR of isolated pairs. In spite of intensive
work in the field of GR, there is scarcity of convinc-

  

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

 

Collections: Chemistry