Kinetics of the Reactions of CH2(X3B1) Radicals with NO and NO2

Article abstract of DOI:10.1021/j100340a011

The kinetics of CH2 radicals in their triplet electronic ground state (X³B₁) with NO and NO2 3B₁) + NO -> products (1); CH2(X³B₁) + NO2 -> products (2)> have been studied at room temperature in isothermal discharge flow systems.CH2 radicals were generated either by exciplex laser photolysis of CH2CO or via the reaction O + CH2CO -> CH2 + CO2.The CH2 concentration was monitored directly with a far-infrared laser magnetic resonance spectrometer.From the decay of under pseudo-first-order conditions the rate conatants of reactions 1 and 2 were obtained to be k₁(296K) = (2.2 +/- 0.2) x 1E13 cm³/(mol s) and k₂(296K) = (5.9 +/- 1.4) x 1E13 cm³/(mol s).