State selected ion--molecule reactions by a TESICO technique. IV. Relative importance of the two spin-orbit states of Ar/sup +/ in the charge transfer reactions with N/sub 2/ and CO

Journal Article · Thu Jul 01 00:00:00 EDT 1982 · J. Chem. Phys.; (United States)

OSTI ID:5232824

Kato, T; Tanaka, K; Koyano, I

Charge transfer reactions Ar/sup +/ (/sup 2/P/sub J/)+N/sub 2/..-->..N/sup +//sub 2/+Ar (1) and Ar/sup +/(/sup 2/P/sub J/)+CO..-->..CO/sup +/+Ar (2) have been studied for the two spin-orbit states (J = 3/2 and 1/2) separately using the threshold electron-secondary ion coincidence (TESICO) technique. Relative cross sections for the two states sigma(3/2) and sigma(1/2) have been determined at three collision energies 0.2, 1.4, and 5.8 eV. It has been found that in Reaction (1), sigma(3/2) is larger than sigma (1/2) with ratio sigma(1/2)/sigma(3/2) ranging from 0.5 to 0.8 depending on the collision energy, whereas in Reaction (2), sigma(1/2) is larger than sigma(3/2) with the ratio ranging from 1.2 to 1.6. The implications of these results are discussed with regard to the roles of energy resonance and Franck--Condon factors in charge transfer processes.

• Research Organization: Institute for Molecular Science, Myodaiji, Okazaki 444, Japan
• OSTI ID: 5232824
• Journal Information: J. Chem. Phys.; (United States), Vol. 77:1
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ARGON IONS
ION-MOLECULE COLLISIONS
CARBON MONOXIDE
NITROGEN
CHARGE EXCHANGE
CHEMICAL REACTIONS
L-S COUPLING
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHARGED PARTICLES
COLLISIONS
COUPLING
ELEMENTS
INTERMEDIATE COUPLING
ION COLLISIONS
IONS
MOLECULE COLLISIONS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena