ESR study of radiolysis of solid N/sub 2/-CH/sub 4/ mixtures at 4. 2 K. Activation transfer and paired radical formation

Journal Article · Thu Mar 13 04:00:00 EST 1986 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100278a048· OSTI ID:5895427

Takeuchi, A; Miyazaki, T; Fueki, K; Gotoh, K

The radiolysis of solid N/sub 2/-CH/sub 4/ mixtures has been studied at 4.2 K by electron spin resonance (ESR) spectroscopy. When solid nitrogen is ..gamma..-irradiated at 4.2 K, N atoms are produced and observed by ESR spectroscopy. When a small amount of methane is added to nitrogen, formation of the N atoms is suppressed drastically, and the amounts of both CH/sub 3/ radicals and H atoms are produced equally. The results are interpreted in terms of the excitation transfer from a highly excited nitrogen molecule to a methane molecule or the charge transfer from a nitrogen cation to a methane molecule. In solid methane ..gamma..-irradiated at 4.2 K, CH/sub 3/ - H paired radicals with 6.76-A separation, CH/sub 3/ radicals, and H atoms are produced. When a small amount of nitrogen or rare gases is added to methane, the formation of CH/sub 3/ - H paired radicals is reduced, though the yields of the CH/sub 3/ radicals and the H atoms are not affected. 17 references, 3 figures.

• Research Organization: Nagoya Univ., Japan
• OSTI ID: 5895427
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:6; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ALKANES
ALKYL RADICALS
ARGON
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
COBALT 60
COBALT ISOTOPES
DATA
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ELECTRON TRANSFER
ELEMENTS
ENERGY TRANSFER
EXPERIMENTAL DATA
FLUIDS
GAMMA RADIATION
GASES
HELIUM
HYDROCARBONS
HYDROGEN
INFORMATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KRYPTON
MAGNETIC RESONANCE
MATRIX ISOLATION
METHANE
METHYL RADICALS
MINUTES LIVING RADIOISOTOPES
NITROGEN
NONMETALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOCHEMISTRY
RADIOISOTOPES
RADIOLYSIS
RARE GASES
RESONANCE
ULTRALOW TEMPERATURE
YEARS LIVING RADIOISOTOPES
YIELDS