The PECs of the 15 Λ–S states have been calculated for the first time.
The PECs of the 32 Ω states arising from 15 Λ-S states have been calculated.
The energy degeneracy among B2Σ + (II), C2Δ(I) and 2Σ−(I) states has been analyzed.
The double wells of C2Δ(I) ,2Σ−(I), 2Π(II) and 2Π(III) states have been studied.