| 研究実績の概要 |
Liquid crystal (LC) is thought to be an organized solvent(media). Recently, our group reported a system in which chiral disc-shaped molecule supramolecularly polymerize in and co-assemble with an achiral LC-forming rod-shaped molecule resulting as a hybrid columnar LC. During this supramolecular polymerization, chirality is transferred to liquid crystalline media from supramolecular polymer. Another merit of this work is, mixability (or in other word, solubility) of disc in rod from dilution to concentrate could be easily ensured. Inspired by this previous work, the present research introduced a chiral LC-forming media 5*CB, to act as chiral auxiliary/promoter in which disc-shaped molecule OCBTPP could supramolecularly polymerize into one-handed helical structure. In highly dilute liquid state, these supramolecular polymers are dispersed showing low CD signal, while in concentrated LC state, the CD signal dramatically increased.
And my research has two progress as below:
(1) Symmetry Breaking induced by Chiral Liquid Crystalline Media: The construction of a one-handed hybrid columnar LC with porphyrin-core disc-shaped molecule and chiral LC-forming rod-shaped molecule.
(2) Col LC Enhanced Chirality of Supramolecular Polymer detected by Anisotropic Dissymmetry Factor: The lattice facilitates chiral transfer in columnar liquid crystalline phase c
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