The corresponding values for all solvents with dipole moments D < 5 Debye are shown in Table . The related plots are shown in the supporting information. In comparison to the results shown in Table , one can observe a slight improvement in terms of lower error values. Even the simple approach shows a higher accuracy. However, the overall high error values indicate that mainly a distinction between protic and aprotic properties is necessary for accurate fitting procedures and robust HSP expressions. Accordingly, the prediction accuracy is not significantly increased when distinguishing between low and high dipolar solvents. This finding applies to all approaches. Therefore, the corresponding results show that more advanced conceptual DFT expressions provide higher accuracy for computing the HSPs. However, it must be noted that our simple approach provides satisfying results.