TROVE
See on GitHub and also the TROVE manual.
There were four step inputs into TROVE, used to determine the line list, potential energy surface (PES) and dipole moment surface (DMS) for 12C-1H4.
The file 28Si-1H4__OY2T.model is an example of the input file used for intenisites.
Zero point energy (ZPE) = 6847.85 cm-1
The potential energy function can be reconstructed using the following files
28Si-1H4__OY2T__PES.f90 - Fortran f90 code for PES of SiH4.
28Si-1H4__OY2T__PES.inp - an input file for PES of SiH4.with the actual refined parameters of SiH4.