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Chirality Induction by Formation of Assembled Structures Based on Anion‐Responsive π‐Conjugated Molecules
Author(s) -
Maeda Hiromitsu,
Hane Wataru,
Bando Yuya,
Terashima Yoshitaka,
Haketa Yohei,
Shibaguchi Hiroshi,
Kawai Tsuyoshi,
Naito Masanobu,
Takaishi Kazuto,
Uchiyama Masanobu,
Muranaka Atsuya
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201301737
Subject(s) - chirality (physics) , conjugated system , circular dichroism , ion , molecule , chemistry , crystallography , alkyl , stereochemistry , organic chemistry , chiral symmetry , polymer , physics , quantum mechanics , nambu–jona lasinio model , quark
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.