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Radiation-chemical transformations of dicyclohexyl-18-crown-6 in aqueous solutions

Journal Article · · High Energy Chem. (Engl. Transl.); (United States)
OSTI ID:6083270
;
The reaction of dicyclohexyl-18-crown-6 and 18-crown-6 with primary radiolysis products of water was studied by the pulsed radiolysis and EPR spectroscopy methods. Crown ethers are highly reactive with respect to H atoms and OH and O/sup -/ radicals and slightly reactive with respect to hydrated electrons. The H atoms and OH and O/sup -/ radicals dehydrogenate crown ethers without rupturing the cyclic structure to form a short-lived radical (lambda/sub max/ = 260 nm). The secondary reactions of radicals are accompanied by the decomposition of the cyclic structure. The radiation-chemical yield of the decomposition of the crown ether molecules in aqueous solutions is 0.6 for 18-crown-6 and 0.9 for dicyclohexyl-18-crown per 100 eV.
OSTI ID:
6083270
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

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Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ABSORPTION
ABSORPTION SPECTRA
ALCOHOLS
ALDEHYDES
AQUEOUS SOLUTIONS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
CHROMATOGRAPHY
DECOMPOSITION
DEHYDROGENATION
DISPERSIONS
DOSES
EFFICIENCY
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY ABSORPTION
FERMIONS
GAMMA RADIATION
GLYCOLS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
HYPERFINE STRUCTURE
IONIZING RADIATIONS
IRRADIATION
KINETICS
LEPTONS
MAGNETIC RESONANCE
MIXTURES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
POLYETHYLENE GLYCOLS
POLYMERS
PULSED IRRADIATION
RADIATION CHEMISTRY
RADIATION DOSES
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOLYSIS
REACTION KINETICS
RECOMBINATION
RESONANCE
SEPARATION PROCESSES
SOLUTIONS
SPECTRA
WATER
YIELDS