ISSN 0009-2614

Chemical Physics Letters
Volume 236, Pages 247-252
14 April 1995

Simple analytical approach to the description of flash-CIDNP formation for ion radicals

Nikolai V. Shokhirev1, Eugeni B. Krissinel'2

1University of Arizona, Chemistry Department, Tucson, AZ 85721, USA; on leave from the Institute of Chemical Kinetics and Combustion, Novosibirsk 630090, Russian Federation
2Institute for Water and Environmental Problems, Barnaul 656099, Russian Federation

Received for publication December 16, 1994

 

Abstract

 

The simple analytical expressions for the stationary bimolecular rate constants of recombination of charged radicals in external magnetic field were obtained for the case of high magnetic field, stepwise exchange integral and contact recombination. A comparison of the analytical and the precise numerical calculations shows good accuracy of the proposed approach. Also discussed is the non-trivial influence of solvent polarity and viscosity on the rate constants via singlet-triplet conversion efficiency.