Spectroscopic ab initio investigation of the electronic properties of (SrK)+

Ab initio calculation including Configuration Interaction (CI) approach has been used to carry out the Potential Energy Curves (PECs) and their spectroscopic constants (D-e well depth, R-e the equilibrium distances, T-e transition energies,omega(e) vibrational constant, omega(e)chi(e) anharmonic constant and B-e rotational constant) of 51 electronic states for different symmetries Sigma(+), II and A of SrK+. The vibrational energies levels and their spacing, the permanent and transition dipole moments (PDM and TDM) have been also investigated. The molecular ion is considered as effective two-electron system. These valence electrons are modeled by a Core Polarization Potential (CPP) and Effective Core Potential (ECP) with I-dependent cut-off functions. (C) 2017 Elsevier B.V. All rights reserved.