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Kinetics of the gas‐phase reactions of Cl atoms with chloroethenes at 298 ± 2 K and atmospheric pressure
Author(s) -
Atkinson Roger,
Aschmann Sara M.
Publication year - 1987
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/kin.550191206
Subject(s) - chemistry , reaction rate constant , isomerization , butane , vinyl chloride , torr , atmospheric pressure , analytical chemistry (journal) , gas phase , kinetics , organic chemistry , thermodynamics , catalysis , physics , polymer , oceanography , quantum mechanics , copolymer , geology
Using a relative rate technique, rate constants have been determined for the gas‐phase reactions of Cl atoms with the cholorethenes and ethane at 298 ± 2 K and 735 torr total pressure of air. Using a rate constant of 1.97 × 10 −10 cm 3 molecule −1 s −1 for the reaction of Cl atoms with n ‐butane, the following rate constants (in units of 10 −11 cm 3 molecule −1 s −1 ) were obtained: vinyl chloride, 12.7 ± 0.2; 1,1‐dichloroethene, 14.0 ± 0.2; cis ‐1,2‐dichloroethene, 9.65 ± 0.10; trans ‐1,2‐dichloroethene, 9.58 ± 0.18; trichloroethene, 8.08 ± 0.10; tetrachloroethene, 4.13 ± 0.23; and ethane, 6.17 ± 0.08 (where the indicated error limits do not include the uncertainties in the rate constant for n ‐butane). A small amount of cis ‐ trans isomerization was observed for the reactions involving the cis ‐ and trans ‐1,2‐dichloroethenes. These data are compared and discussed with the available literature data.