/usr/include/rdkit/ForceField/ is in librdkit-dev 201503-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/rdkit/ForceField/Contrib.h
/usr/include/rdkit/ForceField/ForceField.h
/usr/include/rdkit/ForceField/MMFF/
/usr/include/rdkit/ForceField/MMFF/AngleBend.h
/usr/include/rdkit/ForceField/MMFF/AngleConstraint.h
/usr/include/rdkit/ForceField/MMFF/BondStretch.h
/usr/include/rdkit/ForceField/MMFF/Contribs.h
/usr/include/rdkit/ForceField/MMFF/DistanceConstraint.h
/usr/include/rdkit/ForceField/MMFF/Nonbonded.h
/usr/include/rdkit/ForceField/MMFF/OopBend.h
/usr/include/rdkit/ForceField/MMFF/Params.h
/usr/include/rdkit/ForceField/MMFF/PositionConstraint.h
/usr/include/rdkit/ForceField/MMFF/StretchBend.h
/usr/include/rdkit/ForceField/MMFF/TorsionAngle.h
/usr/include/rdkit/ForceField/MMFF/TorsionConstraint.h
/usr/include/rdkit/ForceField/UFF/
/usr/include/rdkit/ForceField/UFF/AngleBend.h
/usr/include/rdkit/ForceField/UFF/AngleConstraint.h
/usr/include/rdkit/ForceField/UFF/BondStretch.h
/usr/include/rdkit/ForceField/UFF/Contribs.h
/usr/include/rdkit/ForceField/UFF/DistanceConstraint.h
/usr/include/rdkit/ForceField/UFF/Inversion.h
/usr/include/rdkit/ForceField/UFF/Nonbonded.h
/usr/include/rdkit/ForceField/UFF/Params.h
/usr/include/rdkit/ForceField/UFF/PositionConstraint.h
/usr/include/rdkit/ForceField/UFF/TorsionAngle.h
/usr/include/rdkit/ForceField/UFF/TorsionConstraint.h