Kinetics of the recombination reaction between F atoms and FCO radicals

Abstract The laser flash photolysis-absorption technique has been used to study the F + FCO + M → CF 2 O + M recombination reaction between 20 and 700 Torr of M = CF 4 at 296 K. The values k rec,0 = (5.6 ± 1.2) × 10 −29 [CF 4 ] cm 3 molecule −1 s −1 and k rec,∞ = (7.9 ± 1.1) × 10 −11 cm 3 molecule −1 s −1 were determined by extrapolation of the fall-off curve. An analysis of k rec,0 with respect to energy-transfer properties has been carried out. The measured k rec,∞ value is in reasonable agreement with the predictions of the simplified statistical adiabatic channel model. For the FCO + FCO → CF 2 O + CO reaction a rate coefficient of (2.0 ± 0.2) × 10 −11 cm 3 molecule −1 s −1 was determined.