| Project/Area Number |
25288042
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial 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 | Tokyo Metropolitan University |
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Principal Investigator |
Setaka Wataru 首都大学東京, 都市環境科学研究科, 准教授 (60321775)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAGUCHI Kentaro 徳島文理大学, 香川薬学部, 教授 (50159208)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2013: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
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| Keywords | 分子機械 / 有機結晶 / 分子運動 / 相転移 / Ｘ線結晶構造解析 / 固体ＮＭＲ / 分子コマ / ヘテロ環化合物 / 機能性分子 / 有機典型元素 / 動的分子 / 構造有機化学 / 双極子配向制御 / 複屈折 / 機能性有機分子 / 光学的性質 |
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| Outline of Final Research Achievements |
Three-dimensional arrays of dipolar rotors were constructed as single crystals of molecular gyrotops, which are macrocage molecules with a bridged dipolar rotor. In this study, we synthesized novel molecular gyrotops with a five-membered heteroring, i.e., furan-diyl (1), thiophene-diyl (2), and selenophene-diyl (3), and investigated the temperature-dependent orientation and rotation of the dipolar rotors inside the crystal. Unfortunately, furan derivative 1 did not crystallize; however, crystal structures of the other molecular gyrotops, i.e., 2 and 3, showed three-dimensional arrays of dipolar rotors. Thermal order–disorder transitions of the dipolar rotor orientation inside the crystal were observed in 2 and 3. In accordance with the thermal change of the crystal structure, temperature-dependent optical properties of a single crystal were observed by analysis of birefringence of the crystal.
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