title: A cyclic oligophenylene containing two 1,8-naphthalene units bridged by two face-to-face biphenyl linkages exhibiting unusual strain and pi-pi interaction
abstract: 1,8-[1,8-Naphthalenediylbis(4',4-biphenyldiyl)]naphthalene, a very stable strained cyclophane, has been synthesized in moderate yield using the copper-catalyzed coupling of 1, 8-bis(4-(tributylstannyl)phenyl)naphthalene. The X-ray analysis of the titled compound discloses bent p,p'-biphenylylene chains with splayed naphthalene rings, and the p,p'-biphenylylene chains located face-to-face indicate a fairly strong pi-pi interaction.
authors.affiliation: Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan.
authors.initials: M
authors.lastname: Iyoda
authors.initials: T
authors.lastname: Kondo
authors.initials: K
authors.lastname: Nakao
authors.initials: K
authors.lastname: Hara
authors.initials: Y
authors.lastname: Kuwatani
authors.initials: M
authors.lastname: Yoshida
authors.initials: H
authors.lastname: Matsuyama