Potential energy curves and ∂/∂R couplings for electron capture in low-energy collisions of silicon ions with helium and atomic hydrogen

Abstract

The spin-coupled valence bond approach has been used to investigate the adiabatic potential curves, avoided crossings and nonadiabatic radial couplings that were required for fully quantal scattering treatments of the Si²⁺/H, Si³⁺/He and Si⁴⁺/He charge transfer systems. The molecular data are provided as electronic supplementary information.