Figure 5 . Density distributions of cation and anion within the nanoslit with pore size = 0.92 nm. Three ionic diameters: (a) = 0.33 nm, (b) = 0.57 nm and (c) = 0.73 nm are considered, corresponding to the bare ion size, the solvation diameter in confined MeCN, and the solvation diameter in bulk MeCN.