title: Cyclic dimer of a fused porphyrin zinc complex as a novel host with two pi-electronically coupled binding sites.
abstract: Upon complexation with 4,4[prime or minute]-bipyridine, a cyclic dimer of a fused porphyrin zinc complex, having two pi-electronically coupled binding sites, shows a strong negative cooperativity in the second guest binding, to allow stepwise formation of 1 : 1 and 1 : 2 inclusion complexes.
authors.affiliation: Department of Chemistry and Biotechnology, School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Sato
authors.forename: Kentaro
authors.initials: K
authors.lastname: Tashiro
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Shinmori
authors.forename: Atsuhiro
authors.initials: A
authors.lastname: Osuka
authors.forename: Takuzo
authors.initials: T
authors.lastname: Aida
mesh_terms: D001665:Binding Sites; D003500:Cyclization; D019281:Dimerization; D004583:Electrons; D008665:Metalloporphyrins / Q000138:chemical synthesis / Q000737:chemistry*; D015394:Molecular Structure; D015032:Zinc / Q000737:chemistry*
chemical_list: D008665:Metalloporphyrins; D015032:Zinc