2019 Fiscal Year Final Research Report
Development of second-generation argentivorous molecules
| Project/Area Number |
17K05844
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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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| Research Field |
Functional solid state chemistry
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| Research Institution | Toho University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
池田 茉莉 千葉工業大学, 工学部, 准教授 (40711403)
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Keywords | サイクレン / 銀イオン / 銀食い分子 / デンドリマー / キラル / ニトリル / 包接錯体 |
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| Outline of Final Research Achievements |
We synthesized argentivorous molecules and examined their functions.
As a result, (1) the first-generation dendrimer-type argentivorous molecule has been synthesized. In the Ag+ complex with the ligand, the site where the complex was preferentially formed was identified. (2) Octa-armed 24-membered octaamine (cosmosen named after cosmos with 8 petals) has been synthesized from 24-membered tetraoxooctaamine obtained as a by-product during the synthesis of monobenzyldioxocyclene. (3) It was found that an Ag+ complex with a tetra-armed cyclen with a styrylmethyl group as side-arms incorporate a coordination organic molecule of nitriles in the pseudo cavity. In particular, we have found that the Ag+ complex can be applied to determine the absolute configuration of chiral nitriles, which has extremely low specific rotation and is difficult to determine the absolute configuration.
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| Free Research Field |
超分子化学
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| Academic Significance and Societal Importance of the Research Achievements |
単純な構造（重金属イオンや典型金属イオンを捕捉するサイクレンと銀イオンと親和性が高い芳香環）を持つテトラアームドサイクレンが銀イオンと錯体を形成すると側鎖があたかもハエトリソウが捕虫葉に捕捉されるような振る舞いをする．このダイナミックな側鎖のコンホメーション変化を利用して，従来にはなかったような新しい機能を付与する第2世代型銀食い分子を開発することができた．本研究の推進によって超分子化学に新しい可能性を示したものと考えている．
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