Treatment of charged solutes in three-dimensional integral equation theory.

Periodicity artifacts, which occur within three-dimensional reference interaction site model integral equation theory for net-charged solute systems, are analyzed and corrected by means of a renormalization procedure for long range interactions. The method is formulated for solute-solvent and solute-solute variants of the theory. Both dielectric and electrolyte solvents are considered. Comparison of the results for atomic ions with one-dimensional reference computations shows that structural and thermodynamic artifacts are efficiently removed.