An experimental and theoretical study of the product distribution of the reaction CH2 (
3B1) + NO
Abstract
Measurements of the product branching ratios of the reaction CH2 (3B1) + NO (1) are presented together with calculations of the thermal rate constant and branching ratios using unimolecular rate theory. The reaction was investigated experimentally at room temperature using
) + NO capture rate constant and the rate constants for the different product channels as a function of temperature. The calculated capture rate constant of k
= 2.3 × 1013 cm3 mol−1 s−1 is in good agreement with experimental values at room temperature. Collisional stabilization of the initial H2CNO recombination complex was predicted to be negligible up to pressures of >1 bar. For ambient pressures and temperatures up to 2000 K, HCNO + H were calculated as the dominating products, with ΓHCNO≈0.94 in agreement with the experiments. The channel to HCN + OH was calculated with 0.015⩽ΓHCN⩽0.05, only slightly below the experimental value.