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. 2004 Jun;86(6):3772–3782. doi: 10.1529/biophysj.103.035816

TABLE 2.

Ion parameters and properties

Ion σ (Å) ε (kcal/mol) nhs* 1st peak 1st min 2nd peak
Na+ 2.74 −0.1 6.7 2.3 3.1 4.4
Cl 4.29 −0.15 9.9 3.2 3.8 4.6
I 4.82 −0.15 11.4 3.5 4.1 4.6
X 5.89 −0.15 30.2 4.1 5.8 7.1
*

Number of waters in the primary ionic hydration shell (hs) defined by the first minimum of the g(r) functions.