Nonlocal thermodynamic equilibrium effects of vibrationally excited NO
Moralejo, C. ; Cody, R. J. ; Allen, J. E.
College Park, Md. : American Institute of Physics (AIP)
Published 1993
College Park, Md. : American Institute of Physics (AIP)
Published 1993
| ISSN: |
1089-7690
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|---|---|
| Source: |
AIP Digital Archive
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| Topics: |
Physics
Chemistry and Pharmacology
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| Notes: |
The vibrational distribution of NO(X 2π) from the reaction O(3P)+NO2(X 2A1)→NO(X 2π,v‘)+O2 was studied at room temperature in a fast-flow system. Oxygen atoms were produced via the microwave-discharge dissociation of molecular oxygen with argon as the carrier gas. The reaction time between the NO2 molecules and the oxygen atoms was kept at ∼3 ms to minimize vibrational energy quenching. NO(X) radicals were detected via laser-induced fluorescence of the A 2Σ+←X 2π electronic transition. The relative vibrational population ratio of NO in the ground electronic state was determined to be 87.4±2.6% and 12.6±2.7% in the v‘=0 and v‘=1 levels, respectively. No higher vibrational states were observed. The NO vibrational population ratio measured in this study correlates well with the earlier observation of high vibrational excitation in O2.
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| Type of Medium: |
Electronic Resource
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| URL: |