Development of novel synthetic methodology for circularly polarized electroluminescent molecules by hierarchical supramolecular formation
| Project/Area Number |
18K05262
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 35030:Organic functional materials-related
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| Research Institution | Kyoto Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2019: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2018: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | フッ素 / 液晶 / 発光 / 液晶性発光 / 凝集構造 / キラル / 非共有結合性相互作用 / 非共有結合 / 円偏光発光 / 電荷輸送 |
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| Outline of Final Research Achievements |
The purpose of this research project is to develop and establish a method for synthesizing electric field circularly polarized light emitting molecules with the key to controlling the aggregated structure by changing the liquid crystal phase by designing molecules based on the disk-shaped supramolecules of chiral rod-shaped liquid crystal molecules. Through this study, this researcher was able to develop a chiral liquid crystal luminescent molecule that causes a phase transition by heating and cooling and forms a spiral aggregate structure in the liquid crystal state. this researcher also developed a liquid crystal luminescent molecule with high luminous efficiency by forming a hydrogen-bonding dimer by introducing a carboxy group. Furthermore, we investigated the development of a fluorine-containing tolane-carboxylic acid having a chiral side chain, but did not develop chiral liquid crystallinity even though it had relatively excellent optical properties.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究課題では，らせん状凝集構造とπ共役構造の積層構造を同時かつ精密に構築するために， 液晶分子に注目した。本研究は，棒状分子形状を有するキラル液晶性の低分子化合物に非共有結合性相互作用を利用した階層的な超分子形成により自発的なカラム状凝集構造を誘起し，効率的な電界円偏光発光分子の合成法となる。本研究課題では，二種の有機分子を混ぜるだけで水素結合による超分子形成を実現でき，合成化学的に簡便かつ効率的な合成法となる。本研究で開拓・確立した合成アプローチは3Dディスプレイ材料の開発を加速させ，円偏光デバイスやわが国の科学技術の発展に大きく貢献できる。
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Report
(4 results)
Research Products
(43 results)
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[Journal Article] Effect of Fluoroalkyl-Substituent in Bistolane-Based Photoluminescent Liquid Crystals on Their Physical Behavior2021
Author(s)
Yamada Shigeyuki, Wang Yizhou, Morita Masato, Zhang Qingzhi, O'Hagan David, Nagata Masakazu, Agou Tomohiro, Fukumoto Hiroki, Kubota Toshio, Hara Mitsuo, Konno Tsutomu
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Journal Title
Crystals
Volume: 11
Issue: 4
Pages: 450-450
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] 1,2-Disubstituted 3,3,4,4,5,5-hexafluorocyclopentens as bent light-emitting π-conjugated luminophores2020
Author(s)
Shigeyuki Yamada, Akito Nishizawa, Tomohiro Agou, Toshio Kubota, Tsutomu Konno
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Journal Title
Europen Journal of Organic Chemistry
Volume: 2020
Issue: 7
Pages: 870-877
DOI
Related Report
Peer Reviewed
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