title: Direct Raman evidence for resonance interactions between the porphyrin ring system and ring-conjugated substituents in porphyrins, porphyrin dications, and metalloporphyrins.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D008665:Metalloporphyrins; D011166:Porphyrins; D013059:Spectrum Analysis, Raman
chemical_list: D008665:Metalloporphyrins; D011166:Porphyrins