In terms of spectral assignments, the pre-edge feature in all of these spectra takes the form of a "frustrated" Rydberg-like excitation (Fig. ), which is a solution-phase analog of 1s→3s transitions where the symmetry of the final state is perturbed by the presence of the solvent molecules. This distorted symmetry results in weak pre-edge features that would otherwise be symmetry forbidden. Of course, in our limited two-hydration-shell models, we do not completely capture the degree of orbital distortion that might be otherwise caused by an infinite system, so we refer to this state as "Rydberg-like" as opposed to a true frustrated Rydberg excitation. The main-edge features are much more delocalized, and the post-edge transitions are all unbound (exceeding the ionization potential of the solute) excitations into high-energy orbitals that might be characterized as continuum states.