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Figure 1(a): Adiabatic potential energy curves for 0_{g}^{+} states.

Figure 1(b): Adiabatic potential energy curves for the ^{1,3}Λ_{g}^{(±)} states related to the 0_{g}^{+} states. Full lines: Σ^{+} symmetry; dashed lines Π symmetry; (-·-·-·-·) Σ^{-} state; (· · · ·) singlet states; (▲) triplet states.

Figure 2(a): Adiabatic potential energy curves for 0_{g}^{-} states.

Figure 2(b): Adiabatic potential energy curves for the ^{1,3}Λ_{g}^{(+)} states related to the 0_{g}^{-} states. Full lines: Σ^{+} symmetry; dashed lines Π symmetry; (· · · ·) singlet states; (▲) triplet states.

Figure 3(a): Adiabatic potential energy curves for 1_{g} states.

Figure 3(b): Adiabatic potential energy curves for the ^{1,3}Λ^{(±)} states related to the 1_{g} states. Full lines: Σ^{+} symmetry; dashed lines: Π symmetry; (-·-·-·) Σ^{-} state; (· · · ·) singlet states; (▲) triplet states.

Figure 4(a): Adiabatic potential energy curves for 3_{g} and 2_{g} states. Full lines: 2_{g} states; dotted line: 3_{g} state.

Figure 4(b): Adiabatic potential energy curves for the ^{1,3}Λ_{g}^{(+)} states related to the 3_{g} and 2_{g} states. Dashed lines: Π symmetry; dotted lines: Δ symmetry; (· · · ·) singlet states; (▲) triplet states.

Figure 5(a): Adiabatic potential energy curves for 0_{u}^{+} states.

Figure 5(b): Adiabatic potential energy curves for the ^{1,3}Λ_{u}^{(+)} states related to the 0_{u}^{+} states. Full lines: Σ^{+} symmetry; dashed lines: Π symmetry; (· · · ·) singlet states; (▲) triplet states.

Figure 6(a): Adiabatic potential energy curves for 0_{u}^{-} states.

Figure 6(b): Adiabatic potential energy curves for the ^{1,3}Λ_{u}^{(±)} states related to the 0_{u}^{-} states. Full lines: Σ^{+} symmetry; dashed lines: Π symmetry; (-·-·-·-·) Σ^{-} state; (▲) triplet states; (◇) quintuplet states.

Figure 7(a): Adiabatic potential energy curves for 1_{u} states.

Figure 7(b): Adiabatic potential energy curves for the ^{1,3}Λ_{u}^{(±)} states related to the 1_{u} states. Full lines: Σ^{+} symmetry; dashed lines: Π symmetry; (-·-·-·-·) Σ^{-} state; dotted lines: Δ symmetry; (· · · ·) singlet states; (▲) triplet states; (◇) quintuplet states.

Figure 8(a): Adiabatic potential energy curves for 3_{u} and 2_{u} states. Full lines: 2_{u} states, dotted line: 3_{u} state.

Figure 8(b): Adiabatic potential energy curves for the ^{1,3}Λ_{u}^{(±)} states related to the 3_{u} and 2_{u} states. Full lines: Σ^{+} symmetry; dashed lines: Π symmetry; (-·-·-·-·) Σ^{-} state; dotted lines: Δ symmetry; (▲) triplet states; (◇) quintuplet states.