Figure 3From: UV/Visible spectra of a series of natural and synthesised anthraquinones: experimental and quantum chemical approaches Correlation curves obtained based on electronic descriptors with PBE0, B3LYP and B3P86 hybrid functionals: (a) In gas phase, (b) in polarizable continuum model, (c) with the combination of two functionals, and (d) the combination of the three functionals. Back to article page