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. 2014 Nov 26;118(51):14827–14832. doi: 10.1021/jp511702w

Table 2. Two Sets of Ion Radiia.

  VDW radius RDF radius
Na+ 1.4 Å 2.3 Å
K+ 1.8 Å 2.6 Å
Cl 2.3 Å 4.0 Å
a

The van der Waals (VDW) radii are taken from the CHARMM36 ion VDW radii. The radial distribution function (RDF) radii are the first-peak positions of the ion–lipid carbonyl oxygen RDFs from the MD simulations.