DISCRIMINATORY DISPERSION INTERACTIONS BETWEEN CHIRAL MOLECULES

Dispersion interactions between a pair of chiral molecules depend on t he relative handedness of the molecules. The energy shifts valid for a ll separations beyond electron overlap have been calculated by two met hods: one based on fourth-order perturbation theory and the other on a response theory. Both methods use molecular quantum electrodynamics. The discriminatory energy shifts are shown to depend on the mixed elec tric-magnetic polarizability tensor. Non-discriminatory energy shifts of the same order dependent on electric quadrupole polarizability or m agnetic susceptibility are also presented.