Open Access

Table A.1

C2 rotational level energies

v = 0, J EJ J EJ
0 0 18 618.574842
2 10.866355 20 759.423253
4 36.219214 22 914.618665
6 76.053856 24 1084.132143
8 130.362858 26 1267.932072
10 199.136103 28 1465.984169
12 282.360777 30 1678.251483
14 380.021373 32 1904.694400
16 492.099690 34 2145.270648
v= 1, J EJ
0 1827.487599
2 1838.238745
4 1863.337620
6 1902.771206
8 1956.533032
10 2024.615469
12 2107.001692
14 2203.678462

Notes. Rotational energies (in cm−1) of C2 first two vibrational levels, up to E = 2204 cm−1, from https://www.ExoMol.com/

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