Figure 6. Comparison of calculated V (qi )
(lighter red ×) and V (qi ,qj ) (darker blue +) C(1s) binding energy values
with the calculated relative ΔKS BE for forty ion pairs. The dashed line
is the linear regression (R 2 = 0.83) for theV (qi , qj ) data.
Rhombs show values calculated for EMImBF4.