h⊕t,W ⊕C , respectively. Fig. shows the tail effect on the synergistic effect for DS -, along with the total solute-solvent energy and entropy terms, and the tail components of the solutesolvent energy and entropy. Notably, the tail effect on the synergistic effect is qualitatively similar to the DS 0 synergistic effect, with smaller magnitudes for each term. The attractive tail effect energy component, ∆ t ∆ C E t,W ⊕C , mostly accounts for van der Waals stabilization of the DS -tail within the C 12 E 6 monolayer (compared to its