Experimental and theoretical total state-selected and state-to-state absolute cross sections. I. The H sup + sub 2 ( X , v prime )+Ar reaction
- Ames Laboratory, U. S. Department of Energy, Ames, IA (USA) Department of Chemistry, Iowa State University, Ames, IA (USA)
Total state-selected and state-to-state absolute cross sections for the reactions, H{sup +}{sub 2}({ital {tilde X}},{ital v}{prime}=0--4)+Ar{r arrow}H{sub 2}({ital X},{ital v}) +Ar{sup +}({sup 2}{ital P}{sub 3/2,1/2}) (reaction (I)), ArH{sup +}+H (reaction (II)), and H{sup +}+H+Ar (reaction (III)), have been measured in the center-of-mass collision energy ({ital E}{sub c.m.}) range of 0.48--100 eV. Experimental state-selected cross sections for reactions (I) and (II) measured at {ital E}{sub c.m.}=0.48--0.95 eV are in agreement with those reported previously by Tanaka, Kato, and Koyano (J. Chem. Phys. {bold 75}, 4941 (1981)). The experiment shows that prominent features of the cross sections for reactions (I) and (II) are governed by the close resonance of the H{sup +}{sub 2}({ital {tilde X}},{ital v}{prime}=2)+Ar and H{sub 2}({ital X},{ital v}=0)+Ar{sup +}({sup 2}{ital P}{sub 1/2}) vibronic states. At {ital E}{sub c.m.}{le}3 eV, the vibrational state-selected cross section for the charge transfer reaction (I) is peaked at {ital v}{prime}=2.
- OSTI ID:
- 6234070
- Journal Information:
- Journal of Chemical Physics; (USA), Journal Name: Journal of Chemical Physics; (USA) Vol. 93:7; ISSN JCPSA; ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
CATIONS
CHARGE EXCHANGE
CHARGED PARTICLES
CHEMICAL REACTIONS
COLLISIONS
CROSS SECTIONS
DISSOCIATION
ELEMENTS
FLUIDS
GASES
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
MOLECULAR IONS
NONMETALS
RARE GASES
TOTAL CROSS SECTIONS