In:
The Journal of Chemical Physics, AIP Publishing, Vol. 62, No. 2 ( 1975-01-15), p. 440-447
Kurzfassung:
We have studied versus temperature the fast vibvrational energy transfers which occur between two nitrous oxide molecules, or two carbon dioxide molecules, initially excited by a laser pulse into the (00°1) level. These transfers occur upon near−resonant collisions of the type M(m, nl, 1) + M(m′, n′l′, 0) ? M(m, nl, 0) + M(m′, n′l′, 1) with M = 14N2O) or 12CO2. The rates of these V−V transfers have been measured from room temperature up to 900 K by the laser−induced fluorescence method. These exchanges can play an important role in the kinetics of the fast V−V transfers which occur in gaseous mixtures involving these molecules. This is particularly the case for the transfers occurring between different isotopic species of CO2 and N2O, such as 12CO2−13CO2, and mixtures of 14N2O with 14N15NO, 15N14NO, and 15N2O, also studied in this work. The transfer rates for the isotopic mixtures of nitrous oxide have been measured versus temperature. The experimental results are compared with the values calculated on the basis of the long−range multipolar interactions, according to a first−order perturbation theory.
Materialart:
Online-Ressource
ISSN:
0021-9606
,
1089-7690
Sprache:
Englisch
Verlag:
AIP Publishing
Publikationsdatum:
1975
ZDB Id:
3113-6
ZDB Id:
1473050-9
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