Kinetics of the reaction of hydrogen atoms with 1,1-difluoroethylene

Abstract

Hydrogen atoms generated in a Wood-Bonhoeffer discharge were reacted with 1,1-difluoroethylene. The products of the reaction were: HF, C₂H₄, C₂H₆, C₂H₂, CH₄, C₃H₆, n-C₄H₁₀, C₃H₈ and C₂H₃F. With the exception of HF, n-C₄H₁₀ and C₃H₈, all were quantitatively studied over the temperature range 303–603 K. The kinetics and mechanism of the H atom + CF₂CH₂ reaction have been studied in detail. The rate constants have been calculated for each step of the mechanism for three temperatures allowing determination of activation energies. The calculation of the rate constants and testing of the mechanism were accomplished by numerical integration of the simultaneous differential equations for each species involved in the reaction.