Abstract

AbstractThe charge transfer reactions of H, CH, CH and N+ ions with CH4, CH3D, CH2D2 and CD4 were studied. The measurements were carried out using a tandem type mass spectrometer. The influence of the kinetic and internal energy of the incident ions was observed on the secondary mass spectra and also on the isotope effects expressed through πi(D/H), Ti(H) and Ti(D) factors. The dependence of the isotope effects on kinetic energy could indicate a conversion of kinetic energy into internal energy. Reactions in which momentum transfer resulted in charge transfer were also observed, probably indicating a ‘short‐range interaction’ reaction mechanism.

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