Browsing by Author "Cooper, R."

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    Reactions of Cyanogen Radicals: Part 2.—Reactions with (CN)2 and O2
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1972, 68 (12), 1972) Bullock, G. E.; Cooper, R.
    The gas phase reactions of CN radicals with (CN)2 and O2 have been studied as a function of temperature and vibrational excitation of the CN. The first reaction has fact - 13.1 kJ mol*1 and only inefficient vibration->translational transfer occurred with the excited CN levels. The reaction with O2 has no activation energy, but the rate constants increase with CN vibrational level. NCO radicals were produced more rapidly than CN(X2S; 0, 0 band) radicals were removed, indicating that vibrational excitation may contribute to the overall kinetics of this system.
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    Reactions of Cyanogen Radicals: Part 3.—Arrhenius Parameters for Reactions with Alkanes
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1972, 68 (12), 1972) Bullock, G. E.; Cooper, R.
    Using the technique of gas phase pulse radiolysis, the Arrhenius parameters for the reactions of CN radicals with methane and ethane have been determined. With methane there is an activation energy of 8.3 6± 0.5 kJ mol-1 whereas for the reaction with ethane the value is 0(<800) J mol-1. Also reported are the rate constants at 300 K for reaction with CD4 and propane. The effects of vibrational excitation of the CN radicals on the apparent rate constants is discussed.