title: Synthesis and Properties of [7]Helicene-like Compounds Fused with a Fluorene Unit.
abstract: [7]Helicene-like compounds with a fluorene unit were successfully synthesized using a platinum-catalyzed double cyclization reaction. Crystal structures and photophysical properties of these compounds were also studied. In particular, they were found to exhibit a high fluorescence quantum yield and a relatively large g value (dissymmetric factor) of circularly polarized luminescence (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.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: Midori
authors.initials: M
authors.lastname: Akiyama
authors.affiliation: Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology , 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Nakano
authors.affiliation: Research Center for Structural Materials, National Institute for Materials Science , 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan.
authors.forename: Masanobu
authors.initials: M
authors.lastname: Naito
authors.affiliation: Graduate School of Engineering, Osaka University , 8-1 Mihogaoka, Ibaraki Osaka 567-0047, Japan.
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Nobusawa
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: Kyoko
authors.initials: K
authors.lastname: Nozaki