OESymmetryCartesianToFractional
OESymmetryCartesianToFractional(mol: Union[OEGraphMol,OEMol,OEQMol]) -> bool
Converts the Cartesian coordinates of the molecule to
unit cell fractional coordinates. Returns false if the molecule does not
have crystal symmetry.
mol must have 3D Cartesian coordinates assigned and crystal symmetry
set (see OESetCrystalSymmetry).