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Kinetics and mechanism of the reaction of CF 3 radicals with NO 2
Author(s) -
Sehested Jens,
Nielsen Ole John,
Rinaldi Carlos A.,
Lane Silvia I.,
Ferrero Juan Carlos
Publication year - 1996
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/(sici)1097-4601(1996)28:8<579::aid-kin3>3.0.co;2-s
Subject(s) - chemistry , torr , radical , reaction rate constant , reaction mechanism , kinetics , photochemistry , chemical kinetics , spectroscopy , computational chemistry , analytical chemistry (journal) , organic chemistry , thermodynamics , catalysis , physics , quantum mechanics
The reaction of CF 3 with NO 2 was studied at 296 ± 2K using two different absolute techniques. Absolute rate constants of (1.6 ± 0.3) × 10 −11 and (2.1 −0.3 +07 ) × 10 −11 cm 3 molecule −1 s −1 were derived by IR fluorescence and UV absorption spectroscopy, respectively. The reaction proceeds via two reaction channels: CF 3 + NO 2 → CF 2 O + FNO, (70 ± 12)% and CF 3 + NO 2 → CF 3 O + NO, (30 ± 12)%. An upper limit of 11% for formation of other reaction products was determined. The overall rate constant was within the uncertainty independent of total pressure between 0.4 to 760 torr. © 1996 John Wiley & Sons, Inc.