Pressure Dependence of the Rate Constant for the Reaction of CH3O + NO

Article abstract of DOI:10.1246/bcsj.66.51

The reaction of CH3O with NO was examined at room temperature (T=296+/-6 K), where, CH3O was produced in 266 and 355 nm photolysis of CH3ONO, and detected by laser-induced fluorescence technique.From the time resolved analysis of CH3O with excess amount of NO, the rate constant for reaction CH3O+NO(+M) -> products (+M) (1) was measured over the total pressure range of 7-100 Torr, 10-70 Torr, 15-50 Torr, and 10-50 Torr (1 Torr=133.322 Pa).The high-pressure limiting rate constant for reaction (1) has been evaluated to be k_1infinite=(4.5+/-1.5)*10^-11 cm³ molecule^-1 s^-1 with Hinshellwood-Lindemann theory.The present result is found to be consistent with that obtained recently by Frost and Smith.