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Hello,

I am interested in the electronic states of the N

[tex]X^{1} \Sigma_{g}^{+}[/tex]

[tex]A^{3} \Sigma_{u}^{+}[/tex]

[tex]B^{3} \Pi_{g}}[/tex]

[tex]W^3 \Delta_u[/tex]

[tex]B'^3 \Sigma_u^{-}[/tex]

[tex]C^3 \Pi_u [/tex]

What do the X, A, B, W, B', and C stand for? I understand the rest of the symbols. Any pointers would be helpful.

I am interested in the electronic states of the N

_{2}molecule. Now it is a homonuclear diatomic molecule and http://en.wikipedia.org/wiki/Molecular_term_symbol" [Broken]) but I do not understand what the Latin letters before the molecular term symbols mean. Here are some of the states[tex]X^{1} \Sigma_{g}^{+}[/tex]

[tex]A^{3} \Sigma_{u}^{+}[/tex]

[tex]B^{3} \Pi_{g}}[/tex]

[tex]W^3 \Delta_u[/tex]

[tex]B'^3 \Sigma_u^{-}[/tex]

[tex]C^3 \Pi_u [/tex]

What do the X, A, B, W, B', and C stand for? I understand the rest of the symbols. Any pointers would be helpful.

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