LEVEL 8.0
The Level file 28Si-16O__EBJT__LEVEL8.0.inp, was used to create the line list for 28Si-18O. This file is for the parent isotopologue 28Si-16O but it was altered for this isotopologue.
The potential energy curves (PEC) for the isotpologues are dertermined, to high accuracy, by fitting to extensive data obtained from the analusis of both laboratory and sunspot spectra. A high-quality ab initio dipole moment curve (DMC) is calculated at the large basis set, multireference configuration interaction level.
The original SiO ExoMol line lists of Barton et al. computed using LEVEL have been truncated by removing transitions with Δv ≥ 6. This is due to a numerical problem identified by Medvedev and co-workers with the intensities of high overtone transitions computed with LEVEL.