Syntheses of compounds with ultralong C-C bond and investigation of their diradical character
| Project/Area Number |
24750032
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Organic chemistry
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| Research Institution | Tohoku University |
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Principal Investigator |
TAKEDA Takashi 東北大学, 多元物質科学研究所, 助教 (80625038)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 長い結合 / X線結晶構造解析 / サーモクロミズム / ジラジカル / ＤＦＴ計算 / ヘキサフェニルエタン / アセナフチレン / X線構造解析 |
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| Research Abstract |
Examination of physical properties of compounds with an ultralong C-C bond and investigation of molecules with a further elongated C-C bond were conducted. Thermochromism phenomenon was observed in bis(acridan) with pyracene scaffold both in the crystalline and powder states. DFT calculation suggested longer C-C bond might be found when more rigid scaffold is used. Molecular design for elongation of C-C bond was applied to C=C double bond to prepare compounds with a long C=C bond.
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Report
(3 results)
Research Products
(28 results)
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[Journal Article] Expandability of ultralong C-C bond : Largely different C_1-C_2 bond length determined by low-temperature X-ray structural analyses on pseudopolymorphs of 1,1-Bis(4-fluorophenyl)-2,2-bis(4-methoxyp henyl)pyracene2014
Author(s)
Takanori Suzuki, Yasuto Uchimura, Takashi Takeda, Hidetoshi Kawai, Ryo Katoono, Kenshu Fujiwara, Kei Murakoshi, Takanori Fukushima, Aiichiro Nagaki, Junichi Yoshida
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Journal Title
Chemistry Letters
Volume: 43
Issue: 1
Pages: 86-88
DOI
NAID
Related Report
Peer Reviewed / Open Access
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