Kinetics of the reaction of Cl atoms with FC(O)O and FC(O) OCl

Abstract The kinetics of the Cl + FC(O) O + M → FC(O)OCl + M recombination reaction has been studied by using an ArF excimer laser flash photolysis technique over the 3–650 mbar pressure range of the bath gases He and SF 6 at 295 K. The reaction was found to be close to the second-order regime at total pressures greater than about 100 mbar. The derived limiting high-pressure rate coefficient is (3.1 ± 0.3) × 10 −11 cm 3 molecule −1 s −1 . For the Cl + FC(O)OCl → FC(O)O + Cl 2 reaction a rate coefficient of (1.5 ± 0.2) × 10 −11 cm 3 molecule −1 s −1 was determined. An analysis of the results in terms of the simplified versions of the statistical adiabatic channel model has carried out.