Abstract
The rate constant for H-abstraction (kH) from CH2ClCH2Cl and D-abstraction (kD) from CD2ClCD2Cl by chlorine atoms is described by the expressions: kH=(1.99±0.12)×10−11exp(−777±23/T)cm3molecule−1s−1 and kD=(1.73±0.12)×10−11exp(−1148±16/T)cm3molecule−1s−1. The experiment revealed significant differences in the values of the rate constants for the abstraction of H-atom from the –CH2Cl group in chloroethane and 1,2-dichloroethane. The explanation of these differences was the subject of theoretical studies. The calculated potential energy barriers for the abstraction reaction confirmed the experimental results.
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