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Cavity ring‐down spectroscopic study of the kinetics of the reactions of FCO radicals with O 2 and NO at 295 K
Author(s) -
Ninomiya Yuki,
Goto Masashi,
Hashimoto Satoshi,
Kawasaki Masahiro,
Wallington Timothy J.
Publication year - 2001
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 - 10.1002/1097-4601(200102)33:2<130::aid-kin1005>3.0.co;2-q
Subject(s) - chemistry , radical , diluent , torr , kinetics , molecule , reaction rate constant , cavity ring down spectroscopy , ring (chemistry) , spectroscopy , analytical chemistry (journal) , photochemistry , organic chemistry , thermodynamics , physics , quantum mechanics
Cavity ring‐down UV absorption spectroscopy was used to study the kinetics of the recombination reaction of FCO radicals and the reactions with O 2 and NO in 4.0–15.5 Torr total pressure of N 2 diluent at 295 K. k (FCO + FCO) is (1.8 ± 0.3) × 10 −11 cm 3 molecule −1 s −1 . The pressure dependence of the reactions with O 2 and NO in air at 295 K is described using a broadening factor of Fc = 0.6 and the following low ( k 0 ) and high ( k ∞ ) pressure limit rate constants: k 0 (FCO + O 2 ) = (8.6 ± 0.4) × 10 −31 cm 6 molecule −1 s −1 , k ∞ (FCO + O 2 ) = (1.2 ± 0.2) × 10 −12 cm 3 molecule −1 s −1 , k 0 (FCO + NO) = (2.4 ± 0.2) × 10 −30 cm 6 molecule −1 s −1 , and k ∞ (FCO + NO) = (1.0 ± 0.2) × 10 −12 cm 3 molecule −1 s −1 . The uncertainties are two standard deviations. © 2001 John Wiley & Sons, Inc. Int J Chem Kinet 33: 130–135, 2001