2016 Fiscal Year Final Research Report
Development of Directionally Flexible pi-Conjugated Molecules and the Structural Control
Project/Area Number |
15K17849
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Functional solid state chemistry
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Research Institution | National Institute for Materials Science |
Principal Investigator |
Takai Atsuro 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 研究員 (90746728)
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Project Period (FY) |
2015-04-01 – 2017-03-31
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Keywords | 分子スイッチ / π共役分子 / 超分子 / 電子状態 / 相転移 |
Outline of Final Research Achievements |
I designed a new supramolecular building block (NDI-Fc-NDI) containing a molecular rotor unit in which naphthalenediimides (NDIs) is directionally flexible around ferrocene (Fc) rotational unit and the NDI conformation is responsive to external stimuli. The NDI-Fc-NDI fibrous supramolecular polymer exhibits multiple phase transitions and electronic property changes associated with the conformational changes at different temperatures. Such NDI-Fc conjugates are promising building blocks for n-type organic semiconductors with optimal optical absorption. I also developed a fluorene-based overcrowded alkene derivative which has a highly distorted carbon-carbon double bond and exhibits unique electronic and spin states in the ground and excited states.
Those results have provided important mechanistic insights into π-conjugated molecular assemblies and design features of photofunctional and/or stimuli-responsive π-systems.
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Free Research Field |
有機材料化学
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