Review Article

Potential Energy Surfaces Using Algebraic Methods Based on Unitary Groups

Table 6

Energies (in cm−1) provided by the fit using the Hamiltonian (178). The rms deviation obtained is 1.59 cm−1. Experimental energies were taken from [124, 125].

Polyad StateContribution StateContribution Exp.Energies Δ 𝐸
(normal) (normal) (local) (local) theor.

Symmetry 𝐴 1
1 1 1 1.00 100 1.00 2115.16 2115.17 0.0
2 3 2 0.52 200 0.98 4166.77 4165.65 1.1
2 1 2 0.52 110 0.98 4237.7 4238.95 −1.2
3 1 1 3 2 0.66 300 0.99 6136.34 6136.01 0.3
3 1 3 0.71 210 0.97 6275.83 6277.62 −1.8
3 3 3 0.55 111 0.98 6365.95 6367.23 −1.3
4 1 2 3 2 0.47 400 0.99 8028.98 8027.29 1.7
4 1 4 0.41 310 0.97 8249.51 8249.94 −0.4
4 3 4 0.44 220 0.96 8332.92
4 1 2 3 2 0.35 211 0.98 8397.37
5 1 1 3 4 0.35 500 0.99 9841.4 9841.06 0.3
5 1 3 3 2 0.38 410 0.99 10143.2
5 1 2 3 3 0.57 320 0.98 10289.1
5 1 5 0.31 311 0.95 10370.7
5 3 5 0.27 221 0.95 10443.9
6 1 2 3 4 0.37 600 0.99 11577.5 11577.5 −1.2
6 1 4 3 2 0.38 510 0.99 11957.0
6 3 6 0.32 420 0.95 12183.1
6 1 2 3 4 0.50 411 0.90 12265.1
6 3 6 0.37 330 0.86 12270.1
6 1 6 0.47 321 0.94 12401.5
6 3 6 0.38 222 0.96 12500.3

Symmetry 𝐴 2
3 3 3 1.00 210 1.00 6301.12
4 1 1 3 3 1.00 310 1.00 8261.71
5 1 2 3 3 0.71 410 0.99 10149.9
5 3 5 0.71 320 0.99 10311.7
6 1 1 3 5 0.52 510 0.99 11962.9
6 1 3 3 3 0.55 420 0.99 12193.7
6 3 6 0.76 321 0.99 12439.1

Symmetry 𝐸
1 3 1 1.00 100 1.00 2126.42 2126.72 −0.3
2 1 1 3 1 0.73 200 0.99 4167.94 4168.74 −0.8
2 3 2 0.73 011 0.99 4247.52 4248.59 −1.1
3 1 2 3 1 0.38 300 0.99 6136.33 6136.32 0.0
3 1 2 3 1 0.55 012 0.99 6282.35 6283.46 −1.1
3 3 3 0.67 120 0.99 6294.71 6295.02 −0.3
4 1 1 3 3 0.43 400 0.99 8028.97 8027.32 1.6
4 1 3 3 1 0.58 310 0.98 8257.27 8253.0 4.3
4 1 2 3 2 0.50 130 0.98 8258.37 8258.65 −0.3
4 3 4 0.31 022 0.97 8335.51
4 3 4 0.47 211 0.99 8417.15
5 1 2 3 3 0.37 500 0.99 9841.4 9841.06 0.3
5 1 4 3 1 0.35 410 0.99 10143.7
5 1 1 3 4 0.32 140 0.99 10149.8
5 1 3 3 2 0.37 023 0.98 10290.4
5 3 5 0.65 230 0.99 10310.4
5 1 2 3 3 0.31 311 0.98 10378.1
5 3 5 0.43 122 0.98 10460.9
6 1 3 3 3 0.26 600 0.99 11576.3 11577.5 −1.2
6 1 5 3 1 0.19 510 0.99 11957.1
6 1 2 3 4 0.25 150 0.99 11962.8
6 1 5 3 1 0.27 024 0.95 12184.1
6 1 1 3 5 0.28 240 0.99 12192.7
6 1 1 3 5 0.18 411 0.94 12266.3
6 3 6 0.24 033 0.91 12270.1
6 1 2 3 4 0.24 123 0.99 12412.6
6 1 1 3 5 0.36 231 0.99 12427.1