Kinetics of the gas-phase reactions of chlorine atoms with CH 2 F 2 , CH 3 CCl 3 , and CF 3 CFH 2 over the temperature range 253–553 K

Relative rate techniques were used to study the title reactions in 930–1200 mbar of N 2 diluent. The reaction rate coefficients measured in the present work are summarized by the expressions k (Cl + CH 2 F 2 ) = 1.19 × 10 −17 T 2 exp(−1023/T) cm 3 molecule −1 s −1 (253–553 K), k (Cl + CH 3 CCl 3 ) = 2.41 × 10 −12 exp(−1630/T) cm 3 molecule −1 s −1 (253–313 K), and k (Cl + CF 3 CFH 2 ) = 1.27 × 10 −12 exp(−2019/T) cm 3 molecule −1 s −1 (253–313 K). Results are discussed with respect to the literature data. © 2009 Wiley Periodicals, Inc. Int J Chem Kinet 41: 401–406, 2009Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/62132/1/20398_ftp.pd