Atmospheric degradation of 2-chloroethyl vinyl ether, allyl ether and allyl ethyl ether: Kinetics with OH radicals and UV photochemistry

Gas Phase OH Radical Reaction with 2‐Chloroethyl Vinyl Ether in the 256–333 K Temperature Range: A Combined LP‐LIF and Computational Study

“…measured the rate coefficient as (9±1)×10 −11 cm 3 molecule −1 s −1 at atmospheric pressure and at room temperature with pure air as buffer gas. Whereas, Antiñolo et al . measured the rate coefficient as (4.1±0.5)×10 −11 cm 3 molecule −1 s −1 using absolute PLP‐LIF method at room temperature.…”

“…The value of k reported by Peirone et al . at room temperature (298 K) is twice the value reported by Antiñolo et al . However, the value reported by Antiñolo et al .…”

“…The present value at room temperature (298 K) matches very well with the k 2 value reported by Antiñolo et al . which is (4.1±0.5)×10 −11 cm 3 molecule −1 s −1 using same technique i. e. LP‐LIF.…”

“…Due to its extensive use, the source of 2ClEVE in atmosphere is purely anthropogenic. The reaction of 2ClEVE with OH radical is studied by only two groups ,. Using relative rate method, Peirone et al .…”

“…This allows the transfer of negative charge from the O atom to the olefinic linkage by p‐π conjugation, which adds extra stability to a molecule. The reaction of alkyl vinyl ethers with OH radical is well studied experimentally as well as theoretically by various groups. In these molecules, apart from the OH radical addition to C=C bond, H‐abstraction by OH radical is also operative at normal temperature and hence the rate coefficient is comparatively higher than corresponding simple ethers.…”