Low-lying electronic states and spectroscopic properties of InCl and InCl+

Electronic structure and spectroscopic properties of the low-lying electronic states of InCl and InCl+ have been studied from the ab initio based relativistic configuration interaction calculations. Spectroscopic constants (re, Te, ωe) and potential energy curves of the electronic states of these species within 8 eV have been reported. Effects of the spin-orbit coupling on the electronic spectrum of both the species are explored in detail. The radiative lifetimes for A3Π0+-X1Σ0++, B3Π1-X1Σ0++ and C1Π1-X1Σ0++ transitions of InCl, and B2Σ+-X2Σ+ and C2Π-X2Σ+ of InCl+ are computed and compared with the available data. Transition probabilities of the parallel and perpendicular components of both B-X and C1-X transitions are calculated. The electric dipole moments (μe) of InCl and InCl+ in their low-lying states are calculated. The computed vertical and adiabatic ionization energies of InCl are also reported.