title: Visual chromophore electronic structure.
abstract: The implications that recent work on the electronic structure of polyenes have for the low lying electronic states of retinal reviewed and a very simple model for the diffusenesss of the absorption spectra of visual chromophores is presented.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D008968:Molecular Conformation; D011090:Polyenes; D012172:Retinaldehyde; D012545:Schiff Bases; D013057:Spectrum Analysis; D014801:Vitamin A / Q000031:analogs & derivatives
chemical_list: D011090:Polyenes; D012545:Schiff Bases; D014801:Vitamin A; D012172:Retinaldehyde