This has the problematic consequence that electrostatic interactions in a nonpolar liquid modeled with a nonpolarizable force field will be overestimated about 2-fold. Including electronic polarizability via the AM1-BCC-dPol model makes these liquids polarizable and thus corrects the dielectric constants to ∼ 2. These results suggest that AM1-BCC-dPol will more faithfully model electrostatic interactions in nonpolar media and the lipid membranes of cells.