title: Multipoint recognition of ditopic aromatic guest molecules via Ag-π interactions within a dimetal macrocycle.
abstract: A macrocyclic host molecule possessing a nanocavity with two Ag(I) centers for guest binding and four anthracene walls has been developed. This dimetal-macrocycle forms stable inclusion complexes with ditopic aromatic guest molecules, [2.2]paracyclophane, and ferrocene, in solution and/or in the solid state through Ag-π interactions within the nanocavity. The binding constants for the inclusion complexes were found to range roughly from 10(4) to 10(9) M(-1). Electrochemical measurement revealed that the oxidized form of the included cationic ferrocene was less stabilized due to the direct binding to the cationic two Ag(I) centers.
authors.affiliation: Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
authors.forename: Kenichiro
authors.initials: K
authors.lastname: Omoto
authors.forename: Shohei
authors.initials: S
authors.lastname: Tashiro
authors.forename: Masumi
authors.initials: M
authors.lastname: Kuritani
authors.forename: Mitsuhiko
authors.initials: M
authors.lastname: Shionoya