ID | 62840 |
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Author |
Takaishi, Kazuto
Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
Murakami, Sho
Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
Iwachido, Kazuhiro
Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
Ema, Tadashi
Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
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Abstract | A series of axially chiral binaphthyls and quaternaphthyls possessing two kinds of aromatic fluorophores, such as pyrenyl, perylenyl, and 4-(dimethylamino)phenyl groups, arranged alternately were synthesized by a divergent method. In the excited state, the fluorophores selectively formed a unidirectionally twisted exciplex (excited heterodimer) by a cumulative steric effect and exhibited circularly polarized luminescence (CPL). They are the first examples of a monomolecular exciplex CPL dye. This versatile method for producing exciplex CPL dyes also improved fluorescence intensity, and the CPL properties were not very sensitive to the solvent or to the temperature owing to the conformationally rigid exciplex. This systematic study allowed us to confirm that the excimer chirality rule can be applied to the exciplex dyes: left- and right-handed exciplexes with a twist angle of less than 90 degrees exhibit (-)- and (+)-CPL, respectively.
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Published Date | 2021-10-18
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Publication Title |
Chemical Science
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Publisher | Royal Society of Chemistry
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ISSN | 2041-6520
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Content Type |
Journal Article
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language |
English
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OAI-PMH Set |
岡山大学
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Copyright Holders | © 2021 The Author(s).
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File Version | publisher
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DOI | |
Web of Science KeyUT | |
Related Url | isVersionOf https://doi.org/10.1039/d1sc04403f
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License | https://creativecommons.org/licenses/by-nc/3.0/
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