Table 1 The number of empirical (MARVEL) rovibrational energy levels determined, and the maximum absolute (MAD) and average absolute (AAD) energy level differences, ΔE, in hc cm−1, between the MARVEL studies and those from Ames-202122 and CDSD-29621 for isotopologues of carbon dioxide studied by our group2528.

From: The 626M24 dataset of validated transitions and empirical rovibrational energy levels of 16O12C16O

Isotopologue

No. of levels

\({\boldsymbol{\Delta }}{{\text{E}}}_{{\bf{A}}{\bf{m}}{\bf{e}}{\bf{s}}-{\bf{2021}}}^{{\bf{M}}{\bf{A}}{\bf{D}}}\)

\({\boldsymbol{\Delta }}{{\text{E}}}_{{\bf{A}}{\bf{m}}{\bf{e}}{\bf{s}}-{\bf{2021}}}^{{\bf{A}}{\bf{A}}{\bf{D}}}\)

\({\boldsymbol{\Delta }}{{\text{E}}}_{{\bf{C}}{\bf{D}}{\bf{S}}{\bf{D}}-{\bf{296}}}^{{\bf{M}}{\bf{A}}{\bf{D}}}\)

\({\boldsymbol{\Delta }}{{\text{E}}}_{{\bf{C}}{\bf{D}}{\bf{S}}{\bf{D}}-{\bf{296}}}^{{\bf{A}}{\bf{A}}{\bf{D}}}\)

16O12C16O (626) [This work]

8268

0.147

0.015

0.077

0.001

16O12C18O (628)25

8786

0.231

0.022

0.182

0.002

16O13C16O (636)26

6318

0.152

0.016

0.081

0.002

16O13C18O (638)27

3975

0.151

0.024

0.268

0.002

18O12C18O (828)28

3923

0.571

0.042

0.559

0.002

17O12C18O (728)28

4318

0.109

0.024

0.046

0.001

18O13C18O (838)28

1058

0.168

0.045

0.039

0.001