Ion–molecule reactions in vinyl fluoride

Abstract

The ion–molecule reactions in vinyl fluoride have been studied as a function of pressure and electron energy. The C2H2+ and C2HF+ fragment ions react predominantly by charge transfer while C2H3+ produces C2H4F+ and C4H5+. The C2H2F+ fragment forms C2H4F+, CHF2+, C2H3F2+, C4H4F+, and probably C2H3+. The rate constants for the individual reactions have been measured. The C2H3F+ ion reacts to form C3H5+, C3H4F+, C3H3F2+, and C4H5F+ (in minor yield), both by a second order and by a third order reaction. The rate constants and product distributions from the individual reactions have been evaluated. A number of consecutive reactions have been identified and shown to be third order processes.