Photoelimination of H from radicals in CH/sub 4/ and Xe matrices. Photodecomposition of CH/sub 3/O/sub 2/
Journal Article
·
· J. Phys. Chem.; (United States)
The photolytic decomposition of free radicals trapped in solid matrices has received little study. This paper reports on such decomposition of nine simple radicals in CH/sub 4/, CD/sub 4/, and/or Xe matrices at 5 K. The reactions observed include CH/sub 3/ + hv (185 nm) ..-->.. CH/sub 2/ + H; CD/sub 3/ + hv (185 nm) ..-->.. CD/sub 2/ + D; C/sub 2/H/sub 5/ + hv (185 nm) ..-->.. C/sub 2/H/sub 4/ + H; C/sub 2/H/sub 3/ + hv (185 nm) ..-->.. C/sub 2/H/sub 2/ + H; HCO + hv (approx. 500 nm) ..-->.. H + CO; DCO + hv (approx. 500 nm) ..-->.. D + CO; HO/sub 2/ + hv (254 nm) ..-->.. H + O/sub 2/; DO/sub 2/ + hv (254 nm) ..-->.. D + O/sub 2/; CH/sub 3/O/sub 2/ + hv (254 nm) ..-->.. CH/sub 3/ + O/sub 2/; CH/sub 3/O/sub 2/ + hv (254 nm) ..-->.. HCO + (evidence for OH + H). The production of C/sub 2/H/sub 3/ by both the radiolysis and the near-UV photolysis of C/sub 2/H/sub 4/ in Xe at 5 K is also reported and the use of the photolysis of (CH/sub 3/)/sub 2/N/sub 2/ as a source of CH/sub 3/ radicals in solid CH/sub 4/ is demonstrated.
- Research Organization:
- Univ. of Wisconsin, Madison
- DOE Contract Number:
- AC02-76ER01715
- OSTI ID:
- 5658446
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 86:6; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400500 -- Photochemistry
400600* -- Radiation Chemistry
ALKANES
ALKENES
ALKYL RADICALS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
DEUTERIUM COMPOUNDS
ELEMENTS
ETHANE
ETHYL RADICALS
ETHYLENE
EXPERIMENTAL DATA
FLUIDS
GASES
HYDROCARBONS
HYDROGEN COMPOUNDS
IMIDINES
INFORMATION
MATERIALS
MATRIX MATERIALS
METHANE
METHYL RADICALS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PEROXIDES
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADICALS
RADIOLYSIS
RARE GASES
ULTRALOW TEMPERATURE
XENON
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400500 -- Photochemistry
400600* -- Radiation Chemistry
ALKANES
ALKENES
ALKYL RADICALS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
DEUTERIUM COMPOUNDS
ELEMENTS
ETHANE
ETHYL RADICALS
ETHYLENE
EXPERIMENTAL DATA
FLUIDS
GASES
HYDROCARBONS
HYDROGEN COMPOUNDS
IMIDINES
INFORMATION
MATERIALS
MATRIX MATERIALS
METHANE
METHYL RADICALS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PEROXIDES
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADICALS
RADIOLYSIS
RARE GASES
ULTRALOW TEMPERATURE
XENON