A Precise Description of the Electronic Structures and Spin-Allowed Transition Properties of PF and Its Cation: All-Electron Configuration-Interaction Investigations Including Relativistic Effect

The electronic structures of PF and PF⁺ are calculated with the high-level configuration interaction method. To improve the precision of calculations, the spin-orbit coupling effect, the scalar relativistic effect, and the Davidson correction(+Q) are also considered. The spectroscopic parameters of bound states are derived by the electronic structures of PF and PF⁺, which are in good accordance with the measurements. The transition dipole moments of spin-allowed transitions are evaluated, and the radiative lifetimes of several Λ–S states of PF and PF⁺ are obtained.