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A flash photolysis resonance fluorescence investigation of the reaction OH + CH 3 CCl 3 → H 2 O + CH 2 CCl 3
Author(s) -
Kurylo Michael J.,
Anderson Philip C.,
Klais Odo
Publication year - 1979
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/gl006i010p00760
Subject(s) - arrhenius equation , resonance fluorescence , photodissociation , flash photolysis , reaction rate constant , analytical chemistry (journal) , fluorescence , troposphere , chemistry , atmospheric chemistry , photochemistry , ozone , materials science , physics , kinetics , optics , activation energy , meteorology , environmental chemistry , organic chemistry , quantum mechanics
The absolute rate constant for the reaction OH + CH 3 CCl 3 → H 2 O + CH 2 CCl 3 has been determined by the flash photolysis resonance fluorescence technique from 253 to 363K. The results are used to recommend the Arrhenius expression in units of cm³ molec −1 s −1 . Use of this equation with atmospheric observational data on methyl chloroform nearly doubles the predicted tropospheric OH reaction sink strength for the removal of important atmospheric gases whose lifetimes are controlled by OH. Comparison of the results reported here with previously reported literature values indicates a strong interference of olefinic impurities on the past investigations.