Popis: |
The reactions OH + CHF 3 → products and O ( 3 P ) + CHF 3 → OH + CF 3 were studied in the temperature range 500–750 K and the pressure range 20–160 Torr using laser-induced-fluorescence detection of OH. For the reaction, OH + CHF 3 , the experimental rate coefficient is k = (1.1 ± 0.3) × 10 −12 exp(−(2300 ± 200)/ T ). For the reaction O ( 3 P + CHF 3 → OH , the rate coefficient is k = (2.49 ± 0.06) × 10 −13 exp(3000 ± 1000)/ T ) in the temperature range studied. For the reaction CF 3 CFHCF 3 + O ( 3 P ) → OH + CF 3 CFCF 3 , an upper limit for the rate coefficient is determined to be k −13 exp(−(2700 ± 400)/ T ). |