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Table 2

Comparison of de-perturbed vibrational energy levels (Tv,0; cm−1) for the B3Σu$\[B^{3} \Sigma_{u}^{{}-}\]$ state with the experimental (Green & Western 1996) and theoretical (Gomez et al. 2024) values.

v Exp. Cal. This work
0 31 682.852 31 672.413 31 682.73
1 32 108.69 32 102.782 32 108.66
2 32 530.23 32 525.293 32 529.22
3 32 947.82 32 943.385 32 945.72
4 33 354.96 33 358.98
5 33 768.55 33 769.56
6 34 173.55 34 177.77

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