Bulletin of the Korean Chemical Society

  • 제14권1호
  • /
  • Pages.47-52
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  • 1993
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  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Theoretical Investigation of the Vibrational Relaxation of NO(${\upsilon}=1-7$) in Collisions with $O_{2}\;and\;N_{2}$

  • Jongbaik Ree (Department of Chemistry, College of Education, Chonnam National University)
  • 발행 : 1993.02.20
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초록

The vibrational relaxation rate constants of NO(v = 1-7) by $O_2\;and\;N_2$ have been calculated in the temperature range of 300-1000 K using the solution of the time-dependent Schrodinger equation. The calculated relaxation rate constants by $O_2$ increase monotonically with the vibrational energy level v, which is compatible with the experimental data, while those by $N_2$ are nearly independent of v in the range of $3.40 {\pm}1.60{\times}10_{-16} cm^3$/molecule-sec at 300 K. Those for NO(v) + $N_2$ are about 2-3 orders of magnitude smaller than those for NO(v) + $O_2$, because the latter is an exothermic processes while the former an endothermic. Relaxation processes can be interpreted by single-quantum V-V transition. The contributions of V-T/R transition and double-quantum V-V transition to the relaxation are negligible over the entire temperature range.

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참고문헌

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피인용 문헌

  1. Collision-Induced Intramolecular Energy Flow in Highly Excited Toluene vol.24, pp.8, 1993, https://doi.org/10.5012/bkcs.2003.24.8.1223
  2. Molecular Tagging Using Vibrationally Excited Nitric Oxide in an Underexpanded Jet Flowfield vol.47, pp.11, 1993, https://doi.org/10.2514/1.39998