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Absolute state-to-state total cross sections for the reactions N/sup +//sub 2/(X,v' = 0--2) +Ar(/sup 1/S/sub 0/). -->. N/sub 2/(X,v)+Ar/sup +/(/sup 2/P/sub 3/2,1/2/)

Journal Article · · J. Chem. Phys.; (United States)
OSTI ID:6772272
; ; ;
Absolute state-selected total cross sections sigma/sub v//sub '/, v' = 0 and 1, for the reaction N/sup +//sub 2/(X,v' = 0,1) +Ar(/sup 1/S/sub 0/)..-->..N/sub 2/(X,v)+Ar/sup +/(/sup 2/P/sub 3/2,1/2/) (reaction (1)) over the center-of-mass collisional energy (E/sub c.m./) range of 1.2--140 eV have been measured using the photoionization mass spectrometric and radio frequency ion guide methods. These measurements, together with the relative values for sigma/sub v//sub '/, v' = 0--2, and spin-orbit-state distributions of product Ar/sup +/ ions determined using the crossed ion-neutral beam photoionization apparatus, allow the determination of the absolute values for sigma/sub 2/ and partial state-to-state cross sections sigma/sub v//sub '//sub ..-->..//sub J/, v' = 0--2, for reaction (1). Absolute values for sigma/sub v//sub '/, v' = 0--2, at E/sub c.m./ = 8 and 20 eV are in good agreement with those determined previously by the threshold photoelectron secondary ion coincidence method. Absolute values for sigma/sub v//sub '//sub ..-->..//sub J/, v' = 0--2, at E/sub c.m./ = 8 and 20 eV are also found to be in satisfactory accord with the predictions of the semiclassical multistate calculation which uses the ab initio potential energy surfaces of the (N/sub 2/+Ar)/sup +/ system.
Research Organization:
Ames Laboratory, U. S. Department of Energy and Department of Chemistry, Iowa State University, Ames, Iowa 50011
DOE Contract Number:
W-7405-ENG-82
OSTI ID:
6772272
Journal Information:
J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 86:1; ISSN JCPSA
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
ATOMIC BEAMS
BEAMS
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
COLLISIONS
CROSS SECTIONS
ELECTRON TRANSFER
ELEMENTS
FLUIDS
GASES
ION BEAMS
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
KINETICS
MASS SPECTROSCOPY
MOLECULAR IONS
NITROGEN IONS
NONMETALS
PHOTOIONIZATION
RARE GASES
REACTION KINETICS
SPECTROSCOPY
TOTAL CROSS SECTIONS