Both XP-PCM and GOSTSHYP can be understood as the extension of the finite wall potential approach (Section 2.2) to an arbitrary solvent cavity. It should be highlighted that, in contrast to the previously discussed quantum mechanochemical pressure models, XP-PCM and GOSTSHYP model the influence of pressure on the molecular wave function, allowing a quantum mechanical description of electronic effects, such as dipole moments and electronic excitations, under pressure.