Figure 4From: Binding selectivity of dibenzo-18-crown-6 for alkali metal cations in aqueous solution: A density functional theory study using a continuum solvation model The interaction energies contributing to the hydration free energy of M + -DB18C6, (a) the cavitation, (b) repulsion, (c) non-electrostatic interaction, (d) dispersion, and (e) electrostatic interaction energies. Back to article page