Collision dynamical information from pressure broadening measurements: Application to carbon monoxide

Joseph J. BelBruno, Jack Gelfand, Herschel Rabitz

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Self- and helium-broadened carbon monoxide linewidths have been inverted to obtain state-to-state rate constants using the energy corrected sudden scaling formalism. Selected rotation-rotation and rotation-translation rate constants are discussed as a function of vibrational and rotational levels for the CO-CO and He-CO systems. We find that there is no dependence of the collision dynamics upon the vibrational state of the collision partners up to υ=3. In addition, relaxation in both these systems is found to be dominated by rotation-translation collisions. However they are qualitatively different in their dynamical characteristics and result in signficantly varied state-to-state rate constants. An analysis of the effect of collision partners in the CO-X (X=CO, He, Ne, Ar, Xe, H2) system is presented. Comparisons are made with the available data in the literature.

Original languageEnglish (US)
Pages (from-to)3990-3998
Number of pages9
JournalThe Journal of chemical physics
Volume78
Issue number6
DOIs
StatePublished - 1983

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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