Synthesis of highly strained cycloparaphenylenes and elucidation of their properties
| Project/Area Number |
26410043
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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 |
Organic chemistry
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | シクロパラフェニレン / フラーレン / カーボンナノチューブ / 曲面状π共役分子 / スズ / 還元的芳香族化 / 電気化学測定 / 電子物性 / 環状π共役分子 / 歪み / 大量合成 / 芳香族化 / 臭素化 / 官能基化 / バンドギャップ / 電子状態 / 電気化学的測定 |
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| Outline of Final Research Achievements |
Curved π-conjugated molecules have been the focus of intensive research because of their aesthetic structure and associated distinct properties, as well as potential application in materials science. Cycloparaphenylenes (CPPs), in particular, have emerged a prominent position in this field because of their availability by bottom-up organic synthesis. Despite of their synthetic development, however, synthesis of highly strained [5]CPP, a structural unit of the periphery of C60 and a shortest possible structural constitute of the sidewall of (5,5) carbon nanotube, has not been reported at the beginning of this research. In this research, [5]CPP was synthesized for the first time. The UV-vis and electrochemical studies revealed that the HOMO-LUMO gap of [5]CPP is narrow and is comparable to that of C60 as predicted by the theoretical calculation. The results suggest that [5]CPP should be an excellent lead compound for molecular electronics.
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Report
(4 results)
Research Products
(53 results)
