Image Details
Caption: Figure 1.
Ab initio ﹩{U}_{\mathrm{DBOC}}^{\mathrm{ab}}﹩ pointwise functions (dots) obtained during the CCSDT/cc-pVDZ calculations for both X2Σ+ and A2Π states of the main 12C14N isotopologue, along with their semiempirical counterparts ﹩{U}_{{\rm{DBOC}}}^{{\rm{sm}}}﹩ (solid lines), which were adjusted to all three X, A, and B electronic states of the 13C14N isotopologue.
© 2026. The Author(s). Published by the American Astronomical Society.