Fig. shows the calculated charging free energies ∆G of Na + and Cl -. The corresponding numerical values are listed in Suppl. Mat. Table . FIG. : Solvation free energies evaluated for Na + and Cl -with different scaling factors and correction potentials: "FG" is the FG system in the large box (L = 8 nm) with cutoff R c = 1.2 or 1.4 nm, "FG/S" is the same FG system in the small box (L = 3 nm), "CG" is the AdSoS system with s max = 2.0 and cutoffs R c = 2.0, 2.4, or 2.8 nm without correction potentials, "CG+B" is the same CG system with the correction potentials. (Top): Raw solvation free energies from the Coulomb reaction-field scheme in Eq. ( ). (Bottom): Corrected free energies according to Eq. (25).