In figure we plot the difference in log 10 P o * /w 1 and log 10 P o/w 1 , along with the difference in its electrostatic and LJ contributions, for each SAMPL7 molecule. Considering again the use of TIP4P water, we first find that the difference in the LJ contribution is relatively small. The average difference and average absolute difference for the LJ contribution is -0.09 and 0.10, respectively. The difference for SM26, SM31 and SM34 were positive while all others were negative. The difference in log 10 P o * /w 1 and log 10 P o/w 1 is dominated by the electrostatic contribution, for which the average difference and average absolute difference is 0.65 and 0.75, respectively. The increase in the octanol/water partition coefficient corresponds to an increase in the affinity of the solute for the octanol-rich phase. This stems from a general decrease in ∆ G solv is 0.49 and 0.53, respectively, where again the inclusion of water in general increases the value of the octanol/water partition coefficient. The change is likewise dominated by electrostatic interactions for which the average difference and average absolute difference is 0.62 and 0.62, respectively. The LJ contribution is smaller, for which the average difference and average absolute difference is -0.12 and 0.13, respectively.