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Time Behavior of CN Radicals in Laser-Initiated Thermal Isomerization of CH3NC

  • D. S. Bethune
  • J. R. Lankard
  • M. M. T. Loy
  • J. Ors
  • P. P. Sorokin
Conference paper
Part of the Springer Series in Chemical Physics book series (CHEMICAL, volume 6)

Abstract

Using techniques of laser induced fluorescence (LIF) applied earlier in a study of i.r. laser induced photodissociation of CH3CN[1], we have studied the time behavior of CN radicals resulting from the application of single pulses of focused CO2 TEA laser radiation in CH3NC vapor, at pressures both above[2] and below[3] the threshold for thermal explosion. For comparison, observations were also made in CH3CN vapor. The results are of interest in that they appear to rule out the importance of a CN-catalyzed isomerization route
$$ {\text{CN + C}}{{\text{H}}_{{\text{30}}}}{\text{NC}} \to {\text{C}}{{\text{H}}_{\text{3}}}{\text{CN + CN}}$$
(1)
proposed earlier [4] as an alternative mechanism for the CH3NC→ CH3CN isomerization. The latter has been generally regarded as a model unimolecular reaction.

Keywords

Time Behavior Laser Induce Fluorescence Thermal Explosion Probe Laser Excited Vibrational State 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. [1]
    M. L. Lesiecki and W. A. Guillory, J. Chem. Phys. 66, 4239 (1977).ADSCrossRefGoogle Scholar
  2. [2]
    D. S. Bethune, J. R. Lankard, M. M. T. Loy, J. Ors and P. P. Sorokin, Chem. Phys. Lett. 57, 479 (1978).ADSCrossRefGoogle Scholar
  3. [3]
    C. Kleinermanns and H. G. Wagner, Berichte der Bunsen- Gesellschaft 81, 1283 (1977).Google Scholar
  4. [4]
    C. K. Yip and H. O. Pritchard, Can. J. Chem. 48, 2942 (1970).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1979

Authors and Affiliations

  • D. S. Bethune
    • 1
  • J. R. Lankard
    • 1
  • M. M. T. Loy
    • 1
  • J. Ors
    • 1
  • P. P. Sorokin
    • 1
  1. 1.IBM Thomas J. Watson Research CenterYorktown HeightsUSA

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