title: Ring currents in the porphyrins: a four-orbital model.
authors.affiliation: School of Chemistry, University of Exeter, Stocker Road, Exeter EX4 4QD, UK. E.Steiner@ex.ac.uk
authors.forename: Erich
authors.initials: E
authors.lastname: Steiner
authors.forename: Patrick W
authors.initials: PW
authors.lastname: Fowler
mesh_terms: D004563:Electrochemistry; D004583:Electrons; D015394:Molecular Structure; D011166:Porphyrins / Q000737:chemistry*
chemical_list: D011166:Porphyrins