Thermal electron attachment to NO. I. The mechanism and the three-body rate constants

Journal Article · Thu Sep 01 04:00:00 EDT 1988 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.454999· OSTI ID:6925976

Shimamori, H; Hotta, H

Mechanism of thermal electron attachment in pure NO and NO--M mixtures (M: He, Ne, Ar, H/sub 2/ , CO/sub 2/ , and n-C/sub 4/H/sub 10/ ) at room temperature has been studied by using a pulse radiolysis--microwave cavity technique. The pressure dependence of the attachment rates indicates that a collisional electron detachment from NO/sup -/ competes with electron attachment at relatively low pressures but three-body attachment dominates at higher pressures. The three-body rate constants in pure NO is (6.5 +- 0.2) x 10/sup -31/ cm/sup 6/ molecule/sup -2/ s/sup -1/ and those values for the other gases as third bodies range from 1 x 10/sup -32/ (for He) to 3.6 x 10/sup -30/ cm/sup 6/ molecule/sup -2/ s/sup -1/ (for n-C/sub 4/H/sub 10/), and no systematic correspondence can be seen between the values obtained here and those estimated previously from the data of reverse (electron detachment) processes.

• Research Organization: Fukui Institute of Technology, 3-6-1 Gakuen, Fukui 910, Japan
• OSTI ID: 6925976
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 89:5; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ALKANES
ARGON
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
COLLISIONS
DECOMPOSITION
DISPERSIONS
ELECTRON ATTACHMENT
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
FLUIDS
GASES
HELIUM
HYDROCARBONS
HYDROGEN
KINETICS
MIXTURES
MOLECULE COLLISIONS
NEON
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PRESSURE DEPENDENCE
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOLYSIS
RARE GASES
REACTION KINETICS