Crystal Engineering Using Folding Building blocks and Stimuli-responsive Organic Crystals
| Project/Area Number |
25410084
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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 | Chiba University |
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Principal Investigator |
KOHMOTO SHIGEO 千葉大学, 工学(系)研究科(研究院), 教授 (90195686)
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| Co-Investigator(Renkei-kenkyūsha) |
KISHIKAWA KEIKI 千葉大学, 大学院工学研究科, 教授 (40241939)
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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 |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 有機結晶 / 結晶配列制御 / 共結晶 / 水素結合 / フォルダマー / 蛍光 / 刺激応答性発光 / 刺激応答性 / スルホン酸塩 / 有機結晶構造 / ピリジニウム塩 / イミダゾリウム塩 |
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| Outline of Final Research Achievements |
In order to construct folding structures in organic crystals via supramolecular way, U-shaped and S-shaped aromatic ureas possessing carboxy groups at both ends of the molecules were developed. Various cocrystals with hydrogen-bonding acceptor molecules were prepared and their crystal structures were examined by single crystal X-ray analysis. A Unique hydrogen bonding network of melamine was created in the cocrystal with the S-shaped molecule. Folded molecules were applied to the creation of stimuli-responsive organic crystals. Grinding of the salts or solvates of the folded molecules caused changes of their fluorescence color. Exposure of the ground crystals resulted in the re-generation of the original color of fluorescence. The relation between the crystal structures and the responsiveness toward grinding were investigated by the inspection of their crystal structures.
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Report
(4 results)
Research Products
(37 results)
