The shape of z 0 (ε HOMO ) and z 0 (ε LUMO ) becomes more complicated (Figure ), with the dependencies splitting into two curves that are reasonably well approximated by linear and exponential functions. In case of z 0 (ε HOMO ), the linear dependence is formed by PF 6 As the analysis (Figure .13) shows, the distance from the ions to the electrode surface for a number of systems correlates with the adsorption energy. For the anions, there is no E ads (z 0 ) correlation, while for the cations a linear dependence is observed (Figure .13 A, B).