Non-resonant, electron-impact, vibro-electronic excitation cross sections, involving vibrationally excited N2
molecules, to the mixed valence-Rydberg b,c,o 1Πu and b′,c′,e′ 1åu+ singlet states are presented. These cross sections
are calculated using the so-called similarity approach, accounting for the vibronic coupling among excited states, and
compared with the experiments and different theoretical calculations.
New cross sections for the electron-impact resonant vibrational excitation of CO2 molecule are calculated, for the
symmetric stretching mode, as a function of the incident electron energy and for the transitions (υ
i , 0,0)→(νf , 0,0) with
= 0,1,2 and for some selected value of νf in the interval νi ≤νf ≤10. A resonance potential curve and associated
widths are calculated using the R-matrix method. Rate coefficients, calculated by assuming a Maxwellian electron energy
distribution function, are also presented for the same (νi , 0,0)→(νf , 0,0) transitions.
Electron-impact cross sections and rate coefficients for resonant vibrational excitations involving the diatomic species N2,
NO, CO, O2 and H2, for multi-quantic and mono-quantic transitions, are reviewed along with the cross sections and rates
for the process of the dissociative electron attachment to H2 molecule, involving a Rydberg excited resonant state of the H2- ion.