Atomic hydrogen in. gamma. -irradiated hydroxides of alkaline-earth elements
Atomic hydrogen is an important intermediate product formed in the radiolysis of compounds containing X-H bonds. H atoms have been detected in irradiated matrices of H/sub 2/ and inert gases at 4/sup 0/K, in irradiated ice and frozen solutions of acids in irradiated salts and in other systems. Here results are presented from a study of the ESR spectra of H atoms generated in polycrystalline hydroxides of alkaline-earth elements that have been ..gamma..-irradiated at 77/sup 0/K, after preliminary treatment at various temperatures. For the first time stabilization of atomic hydrogen in ..gamma..-irradiated polycrystalline alkaline-earth element hydroxides has been detected. Depending on the degree of dehydroxylation, several types of hydrogen atoms may be stabilized in the hydroxides, these hydrogen atoms having different radiospectroscopic parameters. In the magnesium-calcium-strontium-barium hydroxide series, a regular decrease has been found in the hfi constants for H atoms with the cations in the immediate surroundings. A direct proportionality has been found between the parameters ..delta..A/A/sub 0/ and the polarizability of the cation.
- Research Organization:
- Academy of Sciences of the USSR, Moscow
- OSTI ID:
- 5357645
- Journal Information:
- Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 31:4; ISSN BACCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400600* -- Radiation Chemistry
ALKALINE EARTH METAL COMPOUNDS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION YIELD
CHEMISTRY
CRYSTALS
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ELEMENTS
GAMMA RADIATION
HYDROGEN
HYDROGEN COMPOUNDS
HYDROXIDES
IONIZING RADIATIONS
LOW TEMPERATURE
MAGNETIC RESONANCE
NONMETALS
OXYGEN COMPOUNDS
POLYCRYSTALS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RESONANCE
YIELDS