Role of spin-orbit coupling in the kinetics of geminal recombination of triplet radical pairs in micelles. Effect of an internal heavy atom

Journal Article · Wed Jul 01 04:00:00 EDT 1987 · Dokl. Phys. Chem. (Engl. Transl.); (United States)

OSTI ID:5310727

Levin, P P; Kuz'min, V A

The authors use radicals from the laser photolysis of benzophenone, bromobenzophenone, 4-phenylphenol, and 4-phenylaniline to study the effect of a heavy atom introduced as a substituent on the recombination kinetics of triplet radical pairs in micelles as a function of the external magnetic field strength. They found that intercombination conversion, which takes place due to the spin-orbit coupling between radicals, makes a significant contribution to the process of singlet-triplet transitions in radical pairs together with the hyperfine interaction. The role of spin-orbit coupling increases significantly when heavy atoms are present in the radicals.

• Research Organization: Institute of Chemical Physics, Moscow (USSR)
• OSTI ID: 5310727
• Journal Information: Dokl. Phys. Chem. (Engl. Transl.); (United States), Journal Name: Dokl. Phys. Chem. (Engl. Transl.); (United States) Vol. 292:1/3; ISSN DKPCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500 -- Photochemistry
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ACTIVATION ENERGY
AMINES
ANILINE
AROMATICS
BENZOPHENONE
BROMINE
CHEMICAL REACTIONS
COUPLING
DECOMPOSITION
ELEMENTS
ENERGY
ENERGY-LEVEL TRANSITIONS
HALOGENS
HYDROXY COMPOUNDS
HYPERFINE STRUCTURE
INTERMEDIATE COUPLING
KETONES
KINETICS
L-S COUPLING
MAGNETIC FIELDS
MICELLAR SYSTEMS
NONMETALS
ORGANIC COMPOUNDS
PHENOLS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADICALS
RECOMBINATION
ZEEMAN EFFECT