Variation of the electron attachment to n-C/sub 4/F/sub 10/ with temperature

Journal Article · Sat Feb 14 23:00:00 EST 1987 · J. Chem. Phys.; (United States)

OSTI ID:7043738

Datskos, P G; Christophorou, L G

The total electron attachment rate constant k/sub a/() for n-C/sub 4/F/sub 10/ has been measured using an electron swarm technique in the mean electron energy, , range 0.76 to 4.81 eV and over the temperature, T, range 300 to 750 K. The measured k/sub a/(,T) and the total electron attachment cross section sigma/sub a/(epsilon,T) determined from these by unfolding are reported. The k/sub a/() first decrease slowly with T between 300 and 400 K, then decrease precipitously between 400 and --500 K, and subsequently increase for T>500 K. The overall variation of k/sub a/ with T depends on . From the measured dependence of k/sub a/() on the total gas number density and T we determined the contribution of dissociative and nondissociative attachment to k/sub a/ as a function of ; the contribution of nondissociative attachment decreases with T and the contribution of dissociative attachment increases with T.

• Research Organization: Atomic, Molecular, and High Voltage Physics Group, Health and Safety Research Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7043738
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 86:4; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CHEMICAL REACTION KINETICS
CROSS SECTIONS
DISSOCIATION
ELECTRON ATTACHMENT
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
HIGH TEMPERATURE
KINETICS
MEDIUM TEMPERATURE
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
REACTION KINETICS
TEMPERATURE DEPENDENCE
TOTAL CROSS SECTIONS