Figure 2.

(A) Experimental effective absorption spectrum of 1 m aqueous solution of glycine (black) and the reconstructed absorption spectra of ${\alpha }_{{\mathrm{Gly}}^{+}}^{\mathrm{eff}}+{\alpha }_{{\mathrm{Cl}}^{-}}^{\mathrm{eff}}$ (red) and ${\alpha }_{{\mathrm{Gly}}^{-}}^{\mathrm{eff}}+{\alpha }_{{\mathrm{Na}}^{+}}^{\mathrm{eff}}$ (blue); see text. (B) Computed effective absorption spectrum of zwitterionic glycine Gly^± (black circles), Gly⁺ + Cl⁻ (red triangles pointing up), and Gly⁻+ Na⁺ (blue triangles pointing down); see Simulation Details for methodology and setup.