Kinetics of the reactions of CCl3 with O and O2 and of CCl3O2 with NO at 295 K

摘要: The reactions of CCl3 with O(3P) and O2 those CCl3O2 NO have been studied at 295 K using discharge flow methods helium as the bath gas. rate coefficient for reaction O was found to be (4.2 ± 0.6) × 10−11 cm3/s that (18.6 2.8) 10−12 both coefficients independent [He]. For between increase from 1.51 7times; 10−14 7.88 [He] increased 3.5 1016 cm−3 2.7 1017 cm−3. There no evidence a direct two-body reaction, it is concluded only product this CCl3O2. Examination these results + in terms current simplified falloff treatment suggests high-pressure limit ∼ 2.5 cm3/s, which may compared measurement 5 cm3/s. A value (5.8 10−31 cm6/s has obtained k0, low-pressure region. This corresponding values earlier (CH3, O2) (CF3, systems estimates based on unimolecular theory.