Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Volume206,number 1,2,3,4 CHEMICALPHYSICSLETTERS 30April 1993 Reaction yields in intramolecular dissipative kinetics
 

Summary: Volume206,number 1,2,3,4 CHEMICALPHYSICSLETTERS 30April 1993
Reaction yields in intramolecular dissipative kinetics
Noam Agmon and R.D. Levine
DepartmentofPhysical Chemistryand theFritzHaberResearch Centerfor MolecularDynamics,TheHebrewUniversity,
.ierusalem 919041 Israel
Received30July 1992;in finalform 24 February 1993
Intramolecular dissipation has recently been invoked by S&lag, Grotemcyer and Levineto interpret dynamical processesin
highlyexcited largemolecules.In suchproblems there isdiffusivemotion in the presenceof a potential.In addition, there are two
(or mom) reaction processeswhich proceed at a finite rate. Wepresent the solutionof the Smoluchowskiequation for the yields
(branching fractions) of the reactions and consider its various limiting forms. When reaction is much faster thaa diffusion, the
result of S&lag et al. is recovered. In the opposite limit the reaction yield corresponds to that obtained from a simple kinetic
scheme.The twolimitingformsalsocorrespondto "kineticcontrol" and "thermodynamiccontrol" ofphysicalorganicchemistry.
The derivation is equallyvalid if the sourceof dissipation is intermolecular.
1. Introduetlon
The analytically explicit expression for the yield
(or branching ratio) to be derived below is of par-
ticular interest to us because of its implications to
intramoleculardynamics. The derivation is however
sufficiently generalthat it can alsobe applied to in-
termolecular processes.We further discuss our me

  

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

 

Collections: Chemistry