- #1

samst

- 5

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May anyone please advise me to the following questions in case of diatomic molecules:

1. How do we choose which Hund's case ((a), (b), or (c)...) that best describes a particular diatomic molecule?

2. How can we deduce from Hund's cases molecular electronic states

^{(2s+1)}Λ

_{Ω}(e,g. Σ

^{+/-}, Π, Δ, Φ, Γ...)?

3. When Λ-type doubling for non-sigma states should be taken into consideration?

4. How do we obtain the spin-orbit interaction terms A and B (where Y=A/B)?

Any help would be greatly appreciated...

Best wishes