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Water structure and average dipole moment around a K+ ion. The radial distribution function (RDF) of O…K+ and water dipole moment were computed from molecular dynamic simulations of K+ in water using a polarizable potential (Grossfield et al., 2003; Ren & Ponder, 2003). Note that the average dipole moment of the water in the first solvation shell is roughly similar to that of bulk water.
