Vibronic effects on the low-lying electronic excitations in N_2O induced by electron impact

摘要

We report a theoretical study on the valence-shell electronic excitations of N_2O induced by electron impact. Momentum transfer–dependent generalized oscillator strengths (GOSs) or GOS profiles have been calculated for the low-lying electronic excitations using theoretical wave functions at the equation-of-motion coupled-cluster singles and doubles level. In the calculation, Herzberg–Teller vibronic effects are taken into account. The computed results are in overall agreement with experimental GOS profiles reported in the literature and reveal prominent roles of the bending vibration of N_2O in the B~1Δ and C~1Π transitions.