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. 2014 Dec 9;141(22):225103. doi: 10.1063/1.4902407

Table I.

Ion size models. The diameter of water molecules is set to 2.75 Å78 for all SPMs.

  Diameter (Å)
Model Na+ Mg+2 Cl− Al+3
Hydrated77 7.16 8.56 6.64 9.60
Symmetric 2.75 2.75 2.75 2.75
Shannon68 2.04 1.44 3.62 1.08