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Electronic potential energy curves of the Sr2 Excited Sigma and Pi states

Figure 1

Figure 1. Potential-energy curves for the 3Sigma± and 5Sigma- states. Full lines: 3Sigmag+; dashed lines: 3Sigmau+; dottted line: 3Sigmau-; ·-·-·- : 5Sigma3-.


Figure 2

Figure 2. Potential-energy curves for the 1Sigma+ states. Full lines: g-sym.; dashed lines: u-sym.


Figure 3

Figure 3. Potential-energy curves for the 1Pi states. Full lines: 1Pig; dashed lines: 1Piu.


Figure 4

Figure 4. Potential-energy curves for the 1,3Delta states. Full line: 1Deltag; dotted line: 1Deltau; dashed line: 3Deltag; ·-·-·- : 3Deltau.


Figure 5

Figure 5. Potential-energy curves for the 3Pi states. Full lines: g-sym.; dashed lines: u-sym.

Figure 6

Figure 6. Comparison between the potential-energy curves of the X 2Sigmau+ state of Sr2+ and of some excited states of Sr2. Full line: X 2Sigmau+; dashed lines: 3Sigmau+; dotted lines: 1,3Deltau; ·-·-·- : (2)1Sigmau+.

Reference
Figure 7

Figure 7. Potential curves for the excited triplet and singlet states of the Sr2 dimer correlating with the 3P + 1S and 1P + 1S asymptotes (1 cm-1 = 4.556336 × 10-6 Eh).


Figure 8
Figure 8. Potential curves for the excited states of the Sr2 dimer correlating with the 3D + 1S and 1D + 1S asymptotes. Potential curves arrising from the 3P + 1S and 1P + 1S asymptotes are marked with dashed lines (1 cm-1 = 4.556336 × 10-6 Eh).


Table 1. Spectroscopic parameters De (cm-1) and Re (a0) for the excited states Sr2.
Singlet state    De    Re        Triplet state    De    Re
(4d) 1Deltag 5 736 6.25 (5p) 3Sigmag 362 11.50
(4d) 1Sigmag 4 550 7.90 (4d) 3Deltag 2 790 8.52
(5p) 1Sigmag 1 107 6.76 (4d) 3Sigmag 1 353 8.51
(4d) 1Piu 5 410 7.51 (5p) 3Piu 1 892 8.02
(5p) 1Piu 4 068 6.75 (4d) 3Piu 4 805 7.50
(4d) 1Sigmau 5 440 7.12 (5p) 3Sigmau 6 895 7.74
(4d) 1Deltau 9 263 7.50 (4d) 3Deltau 6 037 7.24
(5p) 1Sigmau 5 490 7.74 (4d) 3Sigmau 4 698 7.25
(4d) 1Pig 14 590 6.88 (5p) 3Pig 8 936 6.98
(5p) 1Pig 5 483 7.51 (4d) 3Pig 5 016 7.49

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