2021 Fiscal Year Final Research Report
Development of novel open-chain hosts with the intention of separating a difficult-to-separate mixture by inclusion in their molecular crystals
Project/Area Number |
19K05415
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 33010:Structural organic chemistry and physical organic chemistry-related
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Research Institution | Tohoku University |
Principal Investigator |
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Project Period (FY) |
2019-04-01 – 2022-03-31
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Keywords | 人工ホスト分子 / 多孔性分子結晶 / 包接 / 異性体の分離 / 光学分割 |
Outline of Final Research Achievements |
From the viewpoint of reducing environmental load and economic efficiency, the development of a simple and precise method for separating a mixture that cannot be separated by crystallization and/or distillation is eagerly desired. We previously found that crystals of p-tert-butylcalix[4]arene with a bowl-shaped structure, upon being immersed in a difficult-to-separate mixture, selectively absorb a particular compound, thereby achieving separation. In this study, we have designed and synthesized novel open-chain molecules for this separation method and shown that they can be used for the separation of amines, alcohols, and carboxylic acids.
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Free Research Field |
有機合成化学,ホストーゲスト化学
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Academic Significance and Societal Importance of the Research Achievements |
これまでのお椀型分子は,お椀の窪みに分離対象の分子を取り込むため,お椀の大きさで分離できる分子が限定されていた。鎖状の分子とすることで,お椀型分子の性質を維持したまま,分離できる分子の種類を増やすことができた。この分離法は,他の方法では分離の難しい混合物に適用できるため,汎用性を高めることが強く望まれる。新しい分離法として確立できれば,バイオマスから有用物質を選択的に捕集する(未利用資源の有効利用),封止された電子デバイス中で分解物を捕捉する(デバイスの劣化防止・長寿命化),医薬品の合成過程でごく微量の不純物を除去する(品質向上)など,様々な応用が期待できる。
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