Nanosecond photolysis of ethyl benzyl ketone. Unusual effect of viscosity on geminal recombination

Journal Article · Mon Oct 31 23:00:00 EST 1988 · High Energy Chem. (Engl. Transl.); (United States)

OSTI ID:6288632

Romashov, L V; Bagdasar'yan, K S; Kiryukhin, Yu I

Nanosecond laser photolysis was used to study the geminal recombination of PhCH/sub 2/ and O-C-C/sub 2/H/sub 5/ radicals formed in the photodissociation of ethyl benzyl ketone in hexane, isopropanol, and mixtures of hexane with mineral oil. One of the processes occurring in the solvent cage is geminal recombination leading to the formation of a quinoid structure as a result of rotational diffusion of radicals. It was shown that an increase of the viscosity of the medium leads to a decrease of the proportion of geminal recombination of this type.

• OSTI ID: 6288632
• Journal Information: High Energy Chem. (Engl. Transl.); (United States), Journal Name: High Energy Chem. (Engl. Transl.); (United States) Vol. 22:3; ISSN HIECA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
ABSORPTION SPECTRA
ALCOHOLS
ALKANES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
DECOMPOSITION
DIFFUSION
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
HEXANE
HYDROCARBONS
HYDROXY COMPOUNDS
KETONES
LASER RADIATION
MINERAL OILS
MOLECULAR STRUCTURE
MOTION
OILS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
OTHER ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
PROPANOLS
PULSES
RADIATIONS
RADICALS
RECOMBINATION
ROTATION
SOLVENT PROPERTIES
SOLVENTS
SPECTRA
VIBRATIONAL STATES
VISCOSITY
YIELDS