title: Synthesis of highly twisted and fully π-conjugated porphyrinic oligomers.
abstract: Highly twisted π-conjugated molecules have been attractive but challenging targets. We report here an efficient synthesis of highly twisted diporphyrins with 126° and 136° twist angles that involves an oxidative fusion reaction of planar aminoporphyrin precursors at room temperature. Repeated amination-oxidative fusion sequences provide a unidirectionally twisted tetramer. The twisting angle of the tetramer is 298°.
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Nagoya University , Nagoya 464-8603, Japan.
authors.forename: Satoru
authors.initials: S
authors.lastname: Ito
authors.forename: Satoru
authors.initials: S
authors.lastname: Hiroto
authors.forename: Sangsu
authors.initials: S
authors.lastname: Lee
authors.forename: Minjung
authors.initials: M
authors.lastname: Son
authors.forename: Ichiro
authors.initials: I
authors.lastname: Hisaki
authors.forename: Takuya
authors.initials: T
authors.lastname: Yoshida
authors.forename: Dongho
authors.initials: D
authors.lastname: Kim
authors.forename: Nagao
authors.initials: N
authors.lastname: Kobayashi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Shinokubo