Ion--molecule reactions during the gas-phase. gamma. -radiolysis of methyl fluoride
Journal Article
·
· J. Phys. Chem.; (United States)
The yields of the products formed in ion--molecule reactions during the gas-phase ..gamma..-radiolysis of methyl fluoride were determined as functions of total pressure with and without ammonia, and in the presence of oxygen, added as a thermal radical scavenger. CH/sub 4/ and C/sub 2/H/sub 5/F were formed in (CH/sub 3/F + O/sub 2/) systems, and CH/sub 4/, C/sub 2/H/sub 5/F, CH/sub 3/NH/sub 2/ and C/sub 2/H/sub 5/NH/sub 2/ in (CH/sub 3/F + O/sub 2/ + NH/sub 3/) systems. At the highest investigated pressure (660 torr) only methane, and methane and methylamine were formed in the two systems, and CH/sub 3/NH/sub 2/ (G = 7.40) was the most abundant product. The presence of a good methylating agent and the observed dependence of G values on total pressure supported the formation of the dimethylfluoronium ion as excited and thermal intermediate. 6 figures, 4 tables.
- Research Organization:
- Laboratorio di Chimica Nucleare, Roma, Italy
- OSTI ID:
- 5895847
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 83:15; 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
ALKANES
AMINES
AMMONIA
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
COLLISIONS
CRYOGENIC FLUIDS
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUIDS
FLUORINATED ALIPHATIC HYDROCARBONS
G VALUE
GAMMA RADIATION
HALOGENATED ALIPHATIC HYDROCARBONS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONIZING RADIATIONS
LOW PRESSURE
METHANE
MOLECULE COLLISIONS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADIOLYSIS
400600* -- Radiation Chemistry
ALKANES
AMINES
AMMONIA
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
COLLISIONS
CRYOGENIC FLUIDS
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUIDS
FLUORINATED ALIPHATIC HYDROCARBONS
G VALUE
GAMMA RADIATION
HALOGENATED ALIPHATIC HYDROCARBONS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONIZING RADIATIONS
LOW PRESSURE
METHANE
MOLECULE COLLISIONS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADIOLYSIS