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Title: Quantum-state-resolved studies of rovibrational excitation of N[sub 2]O and OCS following collisions with low-energy electrons

Abstract

Electron-molecule scattering information is important in studying chemical reactions in the upper atmosphere, in optimizing gas laser performance, and in maximizing the efficiency of magneto hydrodynamic power generation. The vibrational excitation of N[sub 2]O and OCS following excimer laser photolysis of I[sub 2] in a low-pressure mixture of I[sub 2] and N[sub 2]O of I[sub 2] and OCS has been studied using an excimer laser photolysis/diode laser probe technique. Vibrational excitation probabilities and nascent rotational distributions have been obtained for a number of low-lying vibrational levels. In addition, measurements of the transient N[sub 2]O and OCS line widths have been performed for the majority of the rovibrational states probed. Although a relatively large amount of vibrational excitation has been observed in N[sub 2]O and OCS, negligible energy transfer to the translational and rotational degrees of freedom of the products is observed. The results are consistent with the production of vibrationally excited N[sub 2]O and OCS molecules via collisions with low-energy electrons arising from multiphoton ionization of I[sub 2]. 37 refs., 9 figs., 2 tabs.

Authors:
;  [1]
  1. (Columbia Univ., New York, NY (United States))
Publication Date:
OSTI Identifier:
6520272
Alternate Identifier(s):
OSTI ID: 6520272
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Physical Chemistry; (United States); Journal Volume: 97:4
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CARBON OXYSULFIDE; ROTATIONAL STATES; VIBRATIONAL STATES; NITROGEN OXIDES; DEGREES OF FREEDOM; ELECTRON-MOLECULE COLLISIONS; ELECTRONS; ENERGY TRANSFER; EXCITATION; IONIZATION; LINE WIDTHS; CARBON COMPOUNDS; CHALCOGENIDES; COLLISIONS; ELECTRON COLLISIONS; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EXCITED STATES; FERMIONS; LEPTONS; MOLECULE COLLISIONS; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; SULFUR COMPOUNDS 664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-); 665510 -- Magnetohydrodynamics-- (1992-)

Citation Formats

Zhu, L., and Flynn, G.W.. Quantum-state-resolved studies of rovibrational excitation of N[sub 2]O and OCS following collisions with low-energy electrons. United States: N. p., 1993. Web. doi:10.1021/j100106a013.
Zhu, L., & Flynn, G.W.. Quantum-state-resolved studies of rovibrational excitation of N[sub 2]O and OCS following collisions with low-energy electrons. United States. doi:10.1021/j100106a013.
Zhu, L., and Flynn, G.W.. Thu . "Quantum-state-resolved studies of rovibrational excitation of N[sub 2]O and OCS following collisions with low-energy electrons". United States. doi:10.1021/j100106a013.
@article{osti_6520272,
title = {Quantum-state-resolved studies of rovibrational excitation of N[sub 2]O and OCS following collisions with low-energy electrons},
author = {Zhu, L. and Flynn, G.W.},
abstractNote = {Electron-molecule scattering information is important in studying chemical reactions in the upper atmosphere, in optimizing gas laser performance, and in maximizing the efficiency of magneto hydrodynamic power generation. The vibrational excitation of N[sub 2]O and OCS following excimer laser photolysis of I[sub 2] in a low-pressure mixture of I[sub 2] and N[sub 2]O of I[sub 2] and OCS has been studied using an excimer laser photolysis/diode laser probe technique. Vibrational excitation probabilities and nascent rotational distributions have been obtained for a number of low-lying vibrational levels. In addition, measurements of the transient N[sub 2]O and OCS line widths have been performed for the majority of the rovibrational states probed. Although a relatively large amount of vibrational excitation has been observed in N[sub 2]O and OCS, negligible energy transfer to the translational and rotational degrees of freedom of the products is observed. The results are consistent with the production of vibrationally excited N[sub 2]O and OCS molecules via collisions with low-energy electrons arising from multiphoton ionization of I[sub 2]. 37 refs., 9 figs., 2 tabs.},
doi = {10.1021/j100106a013},
journal = {Journal of Physical Chemistry; (United States)},
number = ,
volume = 97:4,
place = {United States},
year = {Thu Jan 28 00:00:00 EST 1993},
month = {Thu Jan 28 00:00:00 EST 1993}
}