CH3O(X̄ 2E) production from 266 nm photolysis of methyl nitrite and reaction with NO

Abstract

The CH3O(X̄ 2E) radical produced by the 266 nm photolysis of CH3ONO is characterized by laser induced fluorescence. Using a flowing gas cell the reaction rate of CH3O(X̄ 2E) with NO is measured to be (2.08 ± 0.12) × 10−11 cm3 s−1 based upon disappearance of CH3O and appearance of HNO detected by laser induced fluorescence. Upper limits for CH3O reactions with CH4, CO, N2O, NH3, CH3OH, (CH3)3CH and CH2CHCH2CH3 are reported. These reactions are all too slow to measure under our experimental conditions.