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Non-Exponential Smoluchowski Dynamics in Fast Acid-Base Reaction

Summary: Non-Exponential Smoluchowski Dynamics in Fast
Acid-Base Reaction
Boiko Cohen and Dan Huppert
School of Chemistry, Sackler Faculty of Exact Sciences
Tel-AViV UniVersity, Tel-AViV 69978, Israel
Noam Agmon*
Department of Physical Chemistry
The Hebrew UniVersity, Jerusalem 91904, Israel
ReceiVed May 8, 2000
ReVised Manuscript ReceiVed July 11, 2000
Acid-base reactions are among the most fundamental processes
in chemistry. Numerous liquid-phase reactions are known to be
acid- or base-catalyzed. In biology, the proton appears as a
substrate, product, or intermediate in nearly all enzymatic
reactions. Acid-base reactions can be extremely fast,1 and thus
diffusion may lead to strong deviations from simple exponential
kinetics. Yet fast direct proton transfer (PT) between acid (AH)
and base (B),
have hardly been studied in the time domain. Such studies require
a fast trigger to initiate the reaction.


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


Collections: Chemistry