INFRARED LASER ENHANCED REACTIONS: O3 + SO

Vibrationally excited ozone, O3 produced by CO2 laser radiation was found to react with SO significantly faster than thermal ozone via the chemiluminescent reaction process O3 + SO to SO2 (singlet B(1)) + O2 (triplet Sigma (g)). The vibrational rate enhancement of this reaction was 2.5 plus or minus 0.6 at 300 K. This represents the use of 27% of the available vibrational energy to promote the reaction, based on a model assuming involvement of a single vibrational mode. The laser enhanced chemiluminescence measured from 260 to 450 nm was found to exhibit a 630 plus or minus 200/cm blue shift. This is interpreted as a partitioning of the available vibrational energy of O3 in the vibrational manifold of the SO2 (singlet B(1)) product.

• Supplemental Notes:
  • Sponsored inpart by Department of Transportation, Washington, D.C., Climatic Impact Assessment Program. Originally published in Journal of Chemical Physics, V61, N7, pp 2426-2499, 1 October 1974.
• Corporate Authors:

  National Bureau of Standards

  14th Between E Street and Constitution Avenue, NW
  Washington, DC  United States  20234

  Department of Transportation

  Climatic Impact Assessment Program, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Kaldor, A
  • BRAUN, W
  • Kurylo, M J
• Publication Date: 1974-10-1

Media Info

• Pagination: 4 p.

Subject/Index Terms

• TRT Terms: Chemiluminescence; Excitation; Kinetics; Molecular structure; Motor reactions; Ozone; Vibration
• Old TRIS Terms: Molecular vibration; Reaction kinetics; Sulfur monoxide
• Subject Areas: Safety and Human Factors;

Filing Info

• Accession Number: 00090021
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt.
• Files: NTIS, USDOT
• Created Date: Nov 18 1975 12:00AM