Electron spin echo studies of the solvation structure of O/sub 2//sup -/ in methanol and ethanol
Electron spin echo modulation studies of O/sub 2//sup -/ in specifically deuterated methanol and ethanol glasses have been carried out at 4.2/sup 0/K to determine the solvation structure around O/sub 2//sup -/. The results of the analysis indicate that in both the cases each O/sub 2//sup -/ is solvated by four alcohol molecules. In the case of methanol, the solvent molecules have their H-O bonds oriented toward the II* orbitals of O/sub 2//sup -/ to maximize hydrogen-bonding interactions. This is similar to the O/sub 2//sup -/ solvation structure in water. However, in ethanol the H-O bonds are tilted away from the II* orbitals so that partial molecular dipole orientation of ethanol occurs. As the polar solvent molecule becomes bulkier it appears that molecular dipole orientation becoms more important. This tend is compared with results for solvated electrons in the same solvents. 9 figures, 1 table.
- Research Organization:
- Univ. of Houston, TX
- OSTI ID:
- 6537458
- Journal Information:
- J. Phys. Chem.; (United States), Vol. 86:14
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
SUPEROXIDE RADICALS
ACOUSTIC ESR
SOLVATION
COMPUTERIZED SIMULATION
DATA PROCESSING
ETHANOL
EXPERIMENTAL DATA
GLASS
LOW TEMPERATURE
MATRIX ISOLATION
METHANOL
MIXING
MODULATION
NITROGEN
POTASSIUM OXIDES
SOLVENT PROPERTIES
STRUCTURAL CHEMICAL ANALYSIS
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
ULTRALOW TEMPERATURE
ALCOHOLS
ALKALI METAL COMPOUNDS
CHALCOGENIDES
DATA
ELECTRON SPIN RESONANCE
ELEMENTS
HYDROXY COMPOUNDS
INFORMATION
MAGNETIC RESONANCE
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
PROCESSING
RADICALS
RESONANCE
SIMULATION
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
400201 - Chemical & Physicochemical Properties