  Propylene oxide is one of the simplest organic chiral molecules and has
attracted considerable interest from the scientific community a few years ago,
when it was discovered in the interstellar medium. Here, we report a
preliminary study on the interaction between propylene oxide and rare-gas
atoms, specifically He, Ne, and Ar. The interaction potentials as a function of
the distance between the center-of-mass of propylene oxide and the
rare-gas-atom are calculated for fourteen leading configurations at
CCSD(T)/aug-cc-pVDZ level of theory. Symmetry Adapted Perturbation Theory has
been employed for the analysis of the intermolecular potential, revealing that
most of the contribution is given by dispersion and exchange forces.
