title: Synthesis of Well-Defined Oligo(2,5-dialkoxy-1,4-phenylene vinylene)s with Chiral End Groups: Unique Helical Aggregations Induced by the Chiral Chain Ends.
abstract: Oligo(2,5-dialkoxy-1,4-phenylenevinylene)s containing three different chiral alkoxy substituents on the phenyl end groups with structurally regular (all trans) controlled repeat units have been prepared; these compounds showed highly enhanced aggregation-induced circular dichroism (AICD; formation of supramolecular polymers), and an inversion of the CD signal was observed even with the same end groups under certain conditions.
authors.affiliation: Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397 (Japan).|The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330 (Thailand).
authors.forename: Sakkawet
authors.initials: S
authors.lastname: Yorsaeng
authors.affiliation: Graduate School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0101 (Japan).
authors.forename: Yuka
authors.initials: Y
authors.lastname: Kato
authors.affiliation: Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397 (Japan).
authors.forename: Ken
authors.initials: K
authors.lastname: Tsutsumi
authors.affiliation: Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397 (Japan).
authors.forename: Akiko
authors.initials: A
authors.lastname: Inagaki
authors.affiliation: The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330 (Thailand). Boonyarach.K@chula.ac.th.
authors.forename: Boonyarach
authors.initials: B
authors.lastname: Kitiyanan
authors.affiliation: Graduate School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0101 (Japan). fujikim@naist.jp.
authors.forename: Michiya
authors.initials: M
authors.lastname: Fujiki
authors.affiliation: Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397 (Japan). ktnomura@tmu.ac.jp.|Advanced Catalytic Transformation for Carbon Utilization (ACT-C), Japan Science and Technology Agency (JST), Saitama 332-0012 (Japan). ktnomura@tmu.ac.jp.
authors.forename: Kotohiro
authors.initials: K
authors.lastname: Nomura
keywords: CC coupling; chirality; conjugated oligomers; helical structures; metathesis