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No Access Submitted: 20 February 1992 Accepted: 23 March 1992 Published Online: 04 June 1998

  • CN radical reactions with hydrogen cyanide and cyanogen: Comparison of theory and experiment

J. Chem. Phys. 97, 222 (1992); https://doi.org/10.1063/1.463945
D. L. Yang, T. Yu, and M. C. Lin
  • Department of Chemistry, Emory University, Atlanta, Georgia 30322
    • C. F. Melius
  • Sandia National Laboratory, Combustion Research Facility, Livermore, California 94551
    • more...View Contributors
    • D. L. Yang
    • T. Yu
    • M. C. Lin
    • C. F. Melius
    ABSTRACT
    Absolute rate constants were obtained for CN radical reactions with HCN and C2N2 employing the method of laser photolysis/laser induced fluorescence. The rate constants were found to be temperature dependent in the range 300–740 K and pressure independent in the range 100–600 Torr. The rates for CN+HCN may be described well, in units of cm3/s, by k(HCN)=2.50×10−17T1.71 exp(−770/T), which includes the shock tube results of Szekely et al. at 3000 K [Int. J. Chem. Kinetics 15, 1237 (1983)]. The measured rates for CN+C2N2 may be described well by k(C2N2)=2.19×10−21T2.70 exp(−325/T). Rice–Ramsperger–Kassel–Marcus (RRKM) theory calculations employing transition state parameters predicted by the BAC‐MP4 method were able to account for the effects of temperature and pressure on both reactions.

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    1. © 1992 American Institute of Physics.

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