INFRARED LASER ENHANCED REACTIONS: TEMPERATURE RESOLUTION OF THE CHEMICAL DYNAMICS OF THE O3(*) + NO REACTION SYSTEM

The rate constant for the decay of vibrationally excited ozone, O3(*) + NO reaction system has been measured from 153 to 373 K. Vibrationally excited O3 was produced in the asymmetric stretch normal mode by absorption of square wave modulated emission from a CO2 laser tuned to the P(30) 9.6 micrometer transition. Under appropriate experimental conditions a rapid V-V coupling process involving all three modes of O3 is believed to set up a Boltzmann population distribution among them. From the effects of temperature and buffer gas pressures an assessment can be made as to the predominant loss mechanism for the various modes. A comparison of the Arrhenius parameters for the reaction channels of O3(+) with parameters for the corresponding processes involving thermal O3 yields specific information about the effect of vibrational energy on the reaction dynamics.

• Supplemental Notes:
  • Sponsored in part by Department of Transportation, Washington, D.C. Climatic Impact Assessment Program. Pub. in Jnl. of Chemical Physics, v62 n6 p2065-2071, 15 Mar 75.
• Corporate Authors:

  National Bureau of Standards

  Connecticut Avenue at Van Ness Street, NW
  Washington, DC  United States  20008

  Department of Transportation

  Climatic Impact Assessment Program, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Kurylo, M J
  • BRAUN, W
  • Xuan, C N
  • Kaldor, A
• Publication Date: 1975-3-15

Media Info

• Pagination: 7 p.

Subject/Index Terms

• TRT Terms: Chemiluminescence; Energy transfer; Excitation; Kinetics; Molecular structure; Motor reactions; Nitric oxide; Nitrogen oxides; Ozone; Temperature; Vibration
• Old TRIS Terms: Molecular relaxation; Molecular vibration; Reaction kinetics
• Subject Areas: Energy; Safety and Human Factors;

Filing Info

• Accession Number: 00091463
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt.
• Files: NTIS, USDOT
• Created Date: Jul 24 1975 12:00AM