Vibrational-state distribution of N/sub 2/(B/sup 3/II/sub g/) produced from the Ar(/sup 3/P/sub 2,0/) + N/sub 2/O reaction
The N/sub 2/(B/sup 3/II/sub g/) product-state distribution for v' = 0-12 has been analyzed from the fluorescence observed in an Ar(/sup 3/P/sub 2,0/) + N/sub 2/O afterglow. This vibronic distribution shows a non-Boltzmann property, inverted at v' = 4. N/sub 2/(B) was found to be formed via predissociation of the Rydberg state converging into the ground state of N/sub 2/O/sup +/. The golden-rule model and the half-collision model in the collinear configuration are applied to this reaction system to explain the dynamical features. The results show that both Franck-Condon-like effects and final-state interactions are important in the predissociative excitation of N/sub 2/O. Potential curves are proposed for the effective harmonic oscillator and the repulsive states to reproduce the experimental vibronic-state distribution of N/sub 2/(B) and to interpret the predissociation mechanism.
- Research Organization:
- State Univ. of New York, Old Westbury (USA)
- OSTI ID:
- 6977829
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 92:9; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
42 ENGINEERING
420300 -- Engineering-- Lasers-- (-1989)
500100 -- Environment
Atmospheric-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
ARGON
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
ELEMENTS
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
FLUIDS
GASES
INFORMATION
NITROGEN
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS OXIDE
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
POTENTIALS
RARE GASES
RYDBERG STATES
VIBRATIONAL STATES