Reactions of cyanogen radicals. Part 2.—Reactions with (CN)2 and O2

Abstract

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 E_act≃ 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(X²∑; 0, 0 band) radicals were removed, indicating that vibrational excitation may contribute to the overall kinetics of this system.