  We have developed a molecular theory for the enantiotopic discrimination in
prochiral solutes dissolved in chiral nematic solvents by means of NMR
spectroscopy. The leading rank tensor contributions to the proposed potential
of mean torque include symmetric as well as antisymmetric terms with respect to
spatial inversion, these lead to a consistent determination of all the
prochiral solute symmetries for which enantiotopes are distinguishable by NMR
and also to excellent quantitative agreement when tested against the available
experimental data for the rigid solute acenaphthene and for the moderately
flexible ethanol.
