Fig. 6

a Main frontier orbitals energies and isodensity plots for the component acids of linseed oil. Positive spin polarization of the frontier orbitals is represented as blue and negative spin polarization is represented as red. b Binding modes and optimized geometry for oleic acid on the (101) surface of anatase TiO₂; monodentate (right) and bidentate (left). c Density of states of the oleic acid-TiO₂ complex, and the partial density of states separated contributions showing the orbital origin of the intra-band state are reported. The intra-band state is denoted by an arrow