Cation radicals of aliphatic ketones in freon matrices

Journal Article · Sun Sep 01 04:00:00 EDT 1985 · Dokl. Phys. Chem. (Engl. Transl.); (United States)

OSTI ID:6810107

Belevskii, V N; Belopushkin, S I; Fel'dman, V I

This paper investigates the ESR spectra of solutions of acetone and methyl ethyl ketone (MEK) in CFCl/sub 3/ (Freon II) that were gamma-irradiated at -196 C. The ketones used in this work were chemically pure. An analysis of the spectra indicated that a reduction of the acetone concentration brings about a decrease in the relative yield of acetonyl radicals and an increase (symbatic) in the yield of cation radicals Me/sub 2/CO/sup +/, the total concentration of radicals being constant over a broad range of acetone concentrations. A reduction of the MEK concentration from 0.5 to 0.08 M lowers the yield of the CH/sub 3/COCHCH/sub 3/ radicals, with an equivalent increase in the yield of cation radicals.

• Research Organization: M.V. Lomonosov Moscow State Univ.
• OSTI ID: 6810107
• Journal Information: Dokl. Phys. Chem. (Engl. Transl.); (United States), Journal Name: Dokl. Phys. Chem. (Engl. Transl.); (United States) Vol. 281:1-3; ISSN DKPCA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ABSORPTION SPECTRA
ACETONE
CATIONS
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
FREONS
GAMMA RADIATION
HALOGENATED ALIPHATIC HYDROCARBONS
IONIZING RADIATIONS
IONS
IRRADIATION
KETONES
LOW TEMPERATURE
MAGNETIC RESONANCE
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
QUANTITY RATIO
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOLYSIS
RESONANCE
SPECTRA
YIELDS