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Table 1

Rotational structure of the vibrational levels included in the model.

Vibrational level Lowest J J levels and parity

0000(1) 0 even J, e
0110(1) 1 even J, f; odd J, e
0220(1) 2 even J,e; odd J, f
1000(1,2) 0 even J, e
0330(1) 3 even J, f; odd J, e
1110(1,2) 1 even J, f; odd J, e
0001(1) 1 odd J, e
0111(1) 1 even J, e; odd J, f

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