ESR and electronic spectra of alkane radical cations formed in el-irradiated 3-methylpentane and 3-methylhexane glasses containing alkane solutes
Journal Article
·
· J. Phys. Chem.; (United States)
Electron spin resonance (ESR) and optical difference spectra of photobleaching are measured, and the radical cations from some higher alkanes (C9-C11) and some methyl-branched butanes are found to be trapped in 3-methylpentane or 3-methylhexane matrices at 77 K. The ESR spectra show close agreement with those of radical cations produced in CCl2FCClF2 matrices. The cations of methyl-branched butanes give the absorption bands with lambda/sub max/ ranging from 300 to 260 nm and the bands are attributed to sigma-localized cations, while the higher alkane cation bands appearing in the near-IR region are ascribed to sigma-delocalized cations. The cations of higher alkanes are found to be mobilized by light with lambda > 900 nm to recombine with the negative ions formed by electron scavenging.
- Research Organization:
- Hiroshima Univ., Japan
- OSTI ID:
- 6163559
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 91:12; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ABSORPTION SPECTROSCOPY
ALKANES
ALKYL RADICALS
BUTANE
CATIONS
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECANE
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ELECTRONIC STRUCTURE
EXPERIMENTAL DATA
GAMMA RADIATION
GLASS
HEXANE
HYDROCARBONS
INFORMATION
INFRARED RADIATION
IONIZING RADIATIONS
IONS
LOW TEMPERATURE
MAGNETIC RESONANCE
MATRIX ISOLATION
NUMERICAL DATA
ORGANIC COMPOUNDS
PENTANE
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOLYSIS
RESONANCE
SOLVENT PROPERTIES
SPECTROSCOPY
ULTRAVIOLET RADIATION
400600* -- Radiation Chemistry
ABSORPTION SPECTROSCOPY
ALKANES
ALKYL RADICALS
BUTANE
CATIONS
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECANE
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ELECTRONIC STRUCTURE
EXPERIMENTAL DATA
GAMMA RADIATION
GLASS
HEXANE
HYDROCARBONS
INFORMATION
INFRARED RADIATION
IONIZING RADIATIONS
IONS
LOW TEMPERATURE
MAGNETIC RESONANCE
MATRIX ISOLATION
NUMERICAL DATA
ORGANIC COMPOUNDS
PENTANE
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOLYSIS
RESONANCE
SOLVENT PROPERTIES
SPECTROSCOPY
ULTRAVIOLET RADIATION