title: Chirality induction by formation of assembled structures based on anion-responsive π-conjugated molecules.
abstract: Anion-responsive π-conjugated compounds having chiral alkyl chains were synthesized. Circular dichroism (CD) and circularly polarized luminescence (CPL) were observed in the solution-state assemblies of the chiral anion receptors and those of their anion complexes as salts of a planar triazatriangulenium cation. The CD and CPL spectral patterns of the ion-pair-based assemblies were completely opposite to those of the anion-free assemblies, and this suggests that anion binding and subsequent ion pairing change the chirality of the assembly modes.
authors.affiliation: College of Pharmaceutical Sciences, Ritsumeikan University, Kusatsu 525-8577 (Japan), Fax: (+81) 77-561-2659. maedahir@ph.ritsumei.ac.jp.
authors.forename: Hiromitsu
authors.initials: H
authors.lastname: Maeda
authors.forename: Wataru
authors.initials: W
authors.lastname: Hane
authors.forename: Yuya
authors.initials: Y
authors.lastname: Bando
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Terashima
authors.forename: Yohei
authors.initials: Y
authors.lastname: Haketa
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Shibaguchi
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Kawai
authors.forename: Masanobu
authors.initials: M
authors.lastname: Naito
authors.forename: Kazuto
authors.initials: K
authors.lastname: Takaishi
authors.forename: Masanobu
authors.initials: M
authors.lastname: Uchiyama
authors.forename: Atsuya
authors.initials: A
authors.lastname: Muranaka
mesh_terms: D000838:Anions / Q000138:chemical synthesis* / Q000737:chemistry; D002942:Circular Dichroism; D007477:Ions; D049449:Luminescence; D008956:Models, Chemical; D015394:Molecular Structure
chemical_list: D000838:Anions; D007477:Ions
keywords: anion receptors; chirality; ion pairs; stacking interactions; supramolecular chemistry