Kinetics of the reactions of C/sub 2/H/sub 5/S with NO/sub 2/, NO, and O/sub 2/ at 296 K
Journal Article
·
· J. Phys. Chem.; (United States)
The laser-induced fluorescence technique has been used to study the reactions of the ethylthio radical (C/sub 2/H/sub 5/S) with NO, NO/sub 2/,and O/sub 2/ at 296 K. The reaction of C/sub 2/H/sub 5/S with NO involves a third body and has been shown to be in the transition region between the low- and high-pressure limits. Using an expression developed by Troe to fit the results, they have obtained values of the broadening factor F = 0.49 /sub /minus/0.06//sup /plus/0.04/, k/sub infinity/ = (5.2 /plus minus/ 0.5) /times/ 10/sup /minus/11/ cm/sup 3/ molecule/sup /minus/1/ s/sup /minus/1/, k/sub 0/(He,Ar) = (7.5/sub /minus/1.5//sup /plus/3.5/) /times/ 10/sup /minus/28/ cm/sup 6/ molecule/sup /minus/2/ s/sup /minus/1/, and k/sub 0/(SF/sub 6/) = (2.2/sub /minus/0.5//sup /plus/1.2/) /times/ 10/sup /minus/27/ cm/sup 6/ molecule/sup /minus/2/ s/sup /minus/1/. The reaction with NO/sub 2/ has a rate coefficient of (9.2 /plus minus/ 0.9) /times/ 10/sup /minus/11/ cm/sup 3/ molecule/sup /minus/1/ s/sup /minus/1/. No reaction could be found with O/sub 2/, for which an upper limit on the rate coefficient of 2 /times/ 10/sup /minus/17/ cm/sup 3/ molecule/sup /minus/1/ s/sup /minus/1/ was estimated.
- Research Organization:
- SRI International, Menlo Park, CA (USA)
- OSTI ID:
- 6188320
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 92:21; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKYL RADICALS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
ELEMENTS
EMISSION SPECTROSCOPY
ETHYL RADICALS
EXPERIMENTAL DATA
FLUORESCENCE SPECTROSCOPY
INFORMATION
KINETICS
LASERS
MEDIUM TEMPERATURE
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN
OXYGEN COMPOUNDS
RADICALS
REACTION KINETICS
SPECTROSCOPY
THIYL RADICALS
400201* -- Chemical & Physicochemical Properties
ALKYL RADICALS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
ELEMENTS
EMISSION SPECTROSCOPY
ETHYL RADICALS
EXPERIMENTAL DATA
FLUORESCENCE SPECTROSCOPY
INFORMATION
KINETICS
LASERS
MEDIUM TEMPERATURE
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN
OXYGEN COMPOUNDS
RADICALS
REACTION KINETICS
SPECTROSCOPY
THIYL RADICALS