Relaxation of molecules with chemically significant amounts of energy: Vibrational, rotational, and translation energy recoil of an N sub 2 O bath due to collisions with NO sub 2 (E = 63. 5 kcal/mol)
- Columbia Univ., New York, NY (United States)
Single-collision quenching of highly vibrationally excited NO{sub 2} by N{sub 2}O molecules has been studied. The ground state, N{sub 2}O(00{sup 0}0), first ({nu}{sub 3}) asymmetric stretch, N{sub 2}O(00{sup 0}1), and first ({nu}{sub 1}) symmetric stretch, N{sub 2}O(10{sup 0}0), vibrational levels of N{sub 2}O were probed by using infrared diode laser techniques following pulsed dye laser excitation of NO{sub 2} to an energy E = 63.5 kcal/mol (22,200 cm{sup {minus}1}). Excitation of both the N{sub 2}O {nu}{sub 1} (10{sup 0}0) and {nu}{sub 3} (00{sup 0}1) states by collisions with high-energy NO{sub 2} is accompanied by only a small rotational and translational energy increase. In marked contrast, rotational excitation of N{sub 2}O (00{sup 0}0) ground-state molecules due to collisions with high-energy NO{sub 2} is accompanied by a large increase in translational energy.
- DOE Contract Number:
- FG02-88ER13937
- OSTI ID:
- 5204034
- Journal Information:
- Journal of Physical Chemistry; (United States), Vol. 95:18; ISSN 0022-3654
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
NITROGEN DIOXIDE
MOLECULE-MOLECULE COLLISIONS
NITROUS OXIDE
ENERGY LEVELS
EXPERIMENTAL DATA
HOT ATOM CHEMISTRY
INFRARED RADIATION
KINETIC ENERGY
LASER RADIATION
POTENTIAL ENERGY
ROTATIONAL STATES
VIBRATIONAL STATES
VISIBLE RADIATION
CHALCOGENIDES
CHEMISTRY
COLLISIONS
DATA
ELECTROMAGNETIC RADIATION
ENERGY
EXCITED STATES
INFORMATION
MOLECULE COLLISIONS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
RADIOCHEMISTRY
664300* - Atomic & Molecular Physics- Collision Phenomena- (1992-)