Ion–molecule Reactions Studied by Time-of-Flight Mass Spectrometry: Ii. Reactions in Co–d₂ and Ch₄–d₂ Mixtures

The pulsed operation capability of the time-of-flight mass spectrometer has been used for the study of ion–molecule reaction kinetics. Reactions take place in a high-pressure (up to 0.08 Torr) region free from external electric fields, and time is used as a direct kinetic variable. The following reactions were studied.[Formula: see text]In CH 4 –D 2 mixtures a reaction in addition to CH 4 + + CH 4 → CH 5 + + CH 3 leads to the formation of an ion of m/e 17. Various possibilities for this reaction are discussed.