Note: unless otherwise stated, the broadening coefficients for the principal (most abundant) isotopologue can be used for other isotopologues of the same molecule.

• 1H2-12C-16O__H2.broad [696 bytes]
  H2CO - H2 pressure broadening parameters (main isotopologue)
• 1H2-12C-16O__He.broad [696 bytes]
  H2CO - He pressure broadening parameters (main isotopologue)
• 1H2-12C-16O__air.broad
  H2CO - air pressure broadening parameters (main isotopologue).

References

1. Nerf Jr, R. B. J., "Pressure broadening and shift in the millimeter-wave spectrum of formaldehyde", Journal of Molecular Spectroscopy 58, 451-473 (1975). [link to article][75Nerf.H2CO]
2. Guest, E.R., Tennyson, J., Yurchenko, S.N., "Modelling the Rotational Dependence of Line Broadening using Machine Learning", Journal of Molecular Spectroscopy (2024).