Chemical kinetics of geminal recombination
Journal Article
·
· Kinet. Catal. (Engl. Transl.); (United States)
OSTI ID:6083372
The kinetics of geminal recombination of triplet radical pairs formed in photoreduction of benzophenone by p-cresol in glycerin solution was studied by pulsed laser photolysis. The experiments were conducted at several temperatures and in a constant magnetic field of H = 0.34 T. The parameters in six kinetic equations describing geminal recombination were determined with a computer. The values of the sums of the squares of the residual deviations of the approximation were obtained. It was found that the kinetics are best described by the functions proposed by Noyes and Shushin. It was shown that it is necessary to use the mutual diffusion coefficient of the radicals, which is significantly smaller than the sum of the estimations of the experimental values of the radical diffusion coefficients, for describing the kinetics due to the correlations of the molecular motions of the radicals in the cage.
- Research Organization:
- Institute of Chemical Physics, Moscow (USSR)
- OSTI ID:
- 6083372
- Journal Information:
- Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 29:2; ISSN KICAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
ACTIVATION ENERGY
ALCOHOLS
AROMATICS
BENZOPHENONE
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMPUTERIZED SIMULATION
CRESOLS
DECOMPOSITION
DIFFUSION
ELECTROMAGNETIC RADIATION
ENERGY
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EXCITATION
GAUSSIAN PROCESSES
GLYCEROL
HYDROXY COMPOUNDS
KETONES
KINETIC EQUATIONS
KINETICS
LASER RADIATION
MAGNETIC FIELDS
MATHEMATICAL MODELS
MECHANICS
MULTIPLETS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
PHENOLS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
QUENCHING
RADIATIONS
RADICALS
REACTION KINETICS
RECOMBINATION
REDUCTION
SIMULATION
SOLVENTS
STATISTICAL MECHANICS
TRIPLETS
400500* -- Photochemistry
ACTIVATION ENERGY
ALCOHOLS
AROMATICS
BENZOPHENONE
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMPUTERIZED SIMULATION
CRESOLS
DECOMPOSITION
DIFFUSION
ELECTROMAGNETIC RADIATION
ENERGY
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EXCITATION
GAUSSIAN PROCESSES
GLYCEROL
HYDROXY COMPOUNDS
KETONES
KINETIC EQUATIONS
KINETICS
LASER RADIATION
MAGNETIC FIELDS
MATHEMATICAL MODELS
MECHANICS
MULTIPLETS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
PHENOLS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
QUENCHING
RADIATIONS
RADICALS
REACTION KINETICS
RECOMBINATION
REDUCTION
SIMULATION
SOLVENTS
STATISTICAL MECHANICS
TRIPLETS