. 2008 Jun 6;105(45):17250–17255. doi: 10.1073/pnas.0710437105

Table 1.

Studied ionic species: valence z, hydrated radius r_h, Stokes radius r_s, and bulk diffusivity D_∞

Ion	z	r_h, nm	r_s, nm	D_∞, 10⁻⁵ cm²/s
Fe(CN)₆³⁻	−3	0.475	0.273	0.896
SO₄²⁻	−2	0.379	0.230	1.065
Cl⁻	−1	0.332	0.121	2.032
K⁺	1	0.331	0.125	1.957
Ca²⁺	2	0.412	0.310	0.791
Ru(bipy)₃²⁺	2	0.590	0.475	0.516

The reported hydrated radii are from ref. 50, except for Fe(CN)₆³⁻ [crystallographic radius (51)] and Ru(bipy)₃²⁺ (19). The ionic diffusivities are from ref. 37, except for Ru(bipy)₃²⁺ (19).