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The reaction of ClOO with NO
Author(s) -
WongdontriStuper Wanee,
Simonaitis R.,
Heicklen Julian
Publication year - 1978
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl005i012p01005
Subject(s) - stratosphere , photodissociation , analytical chemistry (journal) , chemistry , physics , photochemistry , atmospheric sciences , environmental chemistry
Reactions of ClOO with NO were studied by the photolysis of Cl 2 in the presence of NO and O 2 with or without added N 2 using steady state photolysis. ClOO is formed by the reversible reaction The results indicate that ClOO reacts with NO via two channels: The atmospherically important values k 2a K 1,−1 = (1.5 ± 0.6) × 10 −32 cm 6 s −1 and k 2b K 1,−1 = (1.6 ± 1.0) × 10 −31 cm 6 s −1 were evaluated at 298°K based on the value of (1.1 ± 0.3) × 10 −31 cm 6 s −1 for the reaction The ratio k 2b /k 2a was found to be 11.0 ± 2.2. The values of k 2a K 1,−1 and k 2b K 1,−1 obtained in the present work when combined with a reasonable value of K 1,−1 at stratospheric temperatures indicates that reactions 2a and 2b are probably not important in the stratosphere.