Moreover, it can also be argued that the linear response computed in vacuum can be different to the response in solvated environments. For example, due to the Pauli repulsion of surrounding solvents, the response of solute in strong field can be suppressed, leading to nonlinear behaviors. To examine the importance of such effects, we also computed the SAPT2+(3)δMP2 and our force field based total, electrostatic, polarization, and dispersion energy between solvated fragments and a sodium ion in Figure (b), (d), as well as in Figure .