The current definition of improper torsion of improper torsions appears to not be fully explicit in specifying exactly which torsions the improper functional form is applied to. A diagram would also help substantially, since the ordering of atoms is not obvious (e.g. atom index 2 is the central atom).
The current definition of improper torsion of improper torsions appears to not be fully explicit in specifying exactly which torsions the improper functional form is applied to. A diagram would also help substantially, since the ordering of atoms is not obvious (e.g. atom index 2 is the central atom).