bool OEPerceiveChiral(OEMolBase &mol)
This function determines the stereocenters of a molecule. This
function uses symmetry classes of a molecule, to determine which atoms
and bonds are chiral. This function updates the ``chiral'' Boolean
property of atoms and bonds. As a side-effect it also sets the
``symclass'' property of all the atoms the molecule to be their
``explicit hydrogen suppressed'' symmetry class, by calling the OEChem
function OEPerceiveSymmetry(mol,false)
.