Dissociative recombination of HCN+ and HNC+, a simplified approach

We present the study of the Dissociative Recombination (DR) of the HCN$^+$ and HNC$^+$ molecular ions. Our calculations are based on a simplified theoretical model that captures the essence of indirectly driven DR process. We use normal modes to represent the vibrational states and the non-adiabatic couplings between them are obtained simply by computing the scattering matrix elements in this vibrational space. Electronic structure calculations, as well as scattering calculations, were carried out entirely from ab initio principles and we compare our results to available data on the literature.