Association and charge transfer reactions of Xe+ and O2+ with acetonitrile

The dependences of the effective binary rate coefficient, keff, for the reactions of Xe+ and O2+ with CH3CN were studied by the SIFDT method over in wide ranges of translational energy and buffer gas pressure. The energy dependences indicate a change of the prevailing pathway of the reactions. It is shown that charge transfer changes the three-body association channel while translational energy is increased. The elaborated procedure of the experimental data processing is described. The energy dependences of the parameters characterizing the association process, which have been determined using this procedure, are presented and discussed.