Mopac 2012 ========== A text-based interface to the Mopac program is provided in order to allow efficient semi-empirical calculations. Mopac is used, if the following information is provided in the `meta-config.json` file under the ``"molecular dynamics"`` keyword:: "interface": { "type": "mopac", "configure": { "keywords": "AM1" } The type of calculation is specified with the ``"keywords"`` argument. Only the method has to be given, since `metafalcon` automatically appends the `1SCF` and `GRAD` keywords for energy and gradients calculation.