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

Photodissociation CH3CN 

References

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    M. L. Lesiecki and W. A. Guillory, J. Chem. Phys. 66, 4239 (1977).ADSCrossRefGoogle Scholar
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    D. S. Bethune, J. R. Lankard, M. M. T. Loy, J. Ors and P. P. Sorokin, Chem. Phys. Lett. 57, 479 (1978).ADSCrossRefGoogle Scholar
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    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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