title: Heteroleptic [Bis(oxazoline)](dipyrrinato)zinc(II) Complexes: Bright and Circularly Polarized Luminescence from an Originally Achiral Dipyrrinato Ligand.
abstract: Heteroleptic zinc(II) complexes synthesized using achiral dipyrrinato and chiral bis(oxazoline) ligands show bright fluorescence with quantum efficiencies of up to 0.70. The fluorescence originates from the (1)π-π* photoexcited state localized exclusively on the dipyrrinato ligand. Furthermore, the luminescence is circularly polarized despite the achirality of the dipyrrinato ligand. Single-crystal X-ray structure analysis discloses that the chiral bis(oxazoline) ligand undergoes intramolecular π-π stacking with the dipyrrinato ligand, inducing axial chirality in the dipyrrinato moiety.
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: Julius F
authors.initials: JF
authors.lastname: Kögel
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: Shinpei
authors.initials: S
authors.lastname: Kusaka
authors.affiliation: Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan. sakamoto@chem.s.u-tokyo.ac.jp.|JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan. sakamoto@chem.s.u-tokyo.ac.jp.
authors.forename: Ryota
authors.initials: R
authors.lastname: Sakamoto
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: Toshiki
authors.initials: T
authors.lastname: Iwashima
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: Mizuho
authors.initials: M
authors.lastname: Tsuchiya
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: Ryojun
authors.initials: R
authors.lastname: Toyoda
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: Ryota
authors.initials: R
authors.lastname: Matsuoka
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: Takamasa
authors.initials: T
authors.lastname: Tsukamoto
authors.affiliation: JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan. yuasaj@ms.naist.jp.|Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5, Takayama, Ikoma, Nara, 630-0192, Japan. yuasaj@ms.naist.jp.
authors.forename: Junpei
authors.initials: J
authors.lastname: Yuasa
authors.affiliation: Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka, 560-8531, Japan.
authors.forename: Yasutaka
authors.initials: Y
authors.lastname: Kitagawa
authors.affiliation: Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5, Takayama, Ikoma, Nara, 630-0192, Japan. tkawai@ms.naist.jp.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Kawai
authors.affiliation: Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan. nisihara@chem.s.u-tokyo.ac.jp.|JST CREST, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan. nisihara@chem.s.u-tokyo.ac.jp.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Nishihara
keywords: N ligands; absorption; chirality; fluorescence; zinc