Note

This website is presently under development. The primary website for MOPAC is still http://openmopac.net until the majority of its contents have been migrated here.

PM6-DH+

Use the PM6-DH+ semiempirical model instead of the default model, PM7 [19]. It combines the PM6 model [18] with the DH+ model [11] for interatomic pairwise corrections for dispersion and hydrogen bonding. See the Model Overview for a comparison of the various models available in MOPAC.

The DISP keyword can be used to print individual pairwise corrections from the DH+ model.