Atmospheric chemistry of FO2 radicals. Reaction with Ch4, O3, No, No2, and Co at 295 K
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Atmospheric chemistry of FO2 radicals. Reaction with Ch4, O3, No, No2, and Co at 295 K. / Sehested, J.; Sehested, K.; Nielsen, O. J.; Wallington, T. J.
I: Journal of Physical Chemistry, Bind 98, Nr. 27, 01.01.1994, s. 6731-6739.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Atmospheric chemistry of FO2 radicals. Reaction with Ch4, O3, No, No2, and Co at 295 K
AU - Sehested, J.
AU - Sehested, K.
AU - Nielsen, O. J.
AU - Wallington, T. J.
PY - 1994/1/1
Y1 - 1994/1/1
N2 - Using pulse radiolysis combined with UV absorption spectroscopy, upper limits for the rate constants of the reaction of the FO2 radical with O3, CH4, and CO were determined to be <3.4 × 10-16, <4.1 × 10-15, and <5.1 × 10-16 cm3 molecule-1 s-1, respectively. The rate constants for the reactions of FO2 radicals with NO and NO2 were measured: FO2 + NO → FNO + O2 (10a); FO2 + NO2 → products (11). The rate constants for reactions 10 and 11 were determined to be (1.47 ± 0.08) × 10-12 and (1.05 ± 0.15) × 10-13 cm3 molecule-1 s-1, respectively. Reaction 10a was found to give FNO in a yield of 100 ± 14%. As a part of this work, an upper limit of the reaction of FO radicals with O3 was determined to be <1.2 × 10-12 cm3 molecule-1 s-1. Results are discussed in the context of the atmospheric chemistry of the FO2 radical and hydrofluorocarbons.
AB - Using pulse radiolysis combined with UV absorption spectroscopy, upper limits for the rate constants of the reaction of the FO2 radical with O3, CH4, and CO were determined to be <3.4 × 10-16, <4.1 × 10-15, and <5.1 × 10-16 cm3 molecule-1 s-1, respectively. The rate constants for the reactions of FO2 radicals with NO and NO2 were measured: FO2 + NO → FNO + O2 (10a); FO2 + NO2 → products (11). The rate constants for reactions 10 and 11 were determined to be (1.47 ± 0.08) × 10-12 and (1.05 ± 0.15) × 10-13 cm3 molecule-1 s-1, respectively. Reaction 10a was found to give FNO in a yield of 100 ± 14%. As a part of this work, an upper limit of the reaction of FO radicals with O3 was determined to be <1.2 × 10-12 cm3 molecule-1 s-1. Results are discussed in the context of the atmospheric chemistry of the FO2 radical and hydrofluorocarbons.
UR - http://www.scopus.com/inward/record.url?scp=0028767568&partnerID=8YFLogxK
U2 - 10.1021/j100078a014
DO - 10.1021/j100078a014
M3 - Journal article
AN - SCOPUS:0028767568
VL - 98
SP - 6731
EP - 6739
JO - Journal of Physical Chemistry
JF - Journal of Physical Chemistry
SN - 0022-3654
IS - 27
ER -
ID: 228193375