title: Facile synthetic route to highly luminescent sila[7]helicene.
abstract: A facile synthetic route to dimethylsila[7]helicene by using a Lewis acid catalyzed double-cyclization reaction for construction of the twisted two phenanthrene moieties is described. Sila[7]helicene exhibited a high fluorescence quantum yield and a realatively large g value (dissymmetric factor) of circularly polarized luminencence (CPL) for small molecules.
authors.affiliation: Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
authors.forename: Hiromi
authors.initials: H
authors.lastname: Oyama
authors.forename: Koji
authors.initials: K
authors.lastname: Nakano
authors.forename: Takunori
authors.initials: T
authors.lastname: Harada
authors.forename: Reiko
authors.initials: R
authors.lastname: Kuroda
authors.forename: Masanobu
authors.initials: M
authors.lastname: Naito
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Nobusawa
authors.forename: Kyoko
authors.initials: K
authors.lastname: Nozaki