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Kinetics of the gas-phase reactions of NO3 radicals with a series of alkynes, haloalkenes, and α,β-unsaturated aldehydes

✍ Scribed by Roger Atkinson; Sara M. Aschmann; Mark A. Goodman

Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
462 KB
Volume
19
Category
Article
ISSN
0538-8066

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✦ Synopsis

Rate constants for the gas-phase reactions of NO3 radicals with a series of alkynes, haloalkenes, and a@-unsaturated aldehydes have been determined a t 298 _i 2 K using a relative rate technique. Using rate constants for the reactions of NO, radicals with ethene and propene of (1.1 f 0.5) x cm3 molecule-'s-' and (7.5 t 1.6) x cm3 molecule-' s-l, respectively, the following rate constants (in units of cm3 molecule-'^-^) were obtained: acetylene, 50.23; propyne, 0.94 f 0.44; vinyl chloride, 2.3 f 1.1; 1,l-dichloroethene, 6.6 f 3.1; cis-1,2-dichloroethene, 0.75 f 0.35; trans-l,Z-dichloroethene, 0.57 2 0.27; trichloroethene, 1.5 f 0.7; tetrachloroethene, <0.4; allyl chloride, 2.9 * 1.3; acrolein, 5.9 t 2.8; and crotonaldehyde, 41 t 9. The atmospheric implications of these data are discussed.

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