CH 3O( [formula omitted]2E) production from 266 nm photolysis of methyl nitrite and reaction with NO

Abstract

The CH 3O( X 2E) radical produced by the 266 nm photolysis of CH 3ONO is characterized by laser-induced fluorescence. Using a flowing gas cell the reaction rate of CH 3O( X 2E) with NO is measured to be (2.08 ± 0.12) × 10 −11 cm 3 s −1 molecule −1 based upon disappearance of CH 3O and appearance of HNO detected by laser induced fluorescence. Upper limits for CH 3O reactions with CH 4, CO, N 2O, NH 3, CH 3OH, (CH 3) 3CH and CH 2CHCH 2CH 3 are reported. These reactions are all too slow to measure under our experimental conditions.