2018 Fiscal Year Final Research Report
Functional Pi-Assembly Figuration by Macroscopic Control of Structural Order
| Project Area | pi-System Figuration: Control of Electron and Structural Dynamism for Innovative Functions |
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| Project/Area Number |
26102008
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
庄子 良晃 東京工業大学, 科学技術創成研究院, 准教授 (40525573)
石割 文崇 東京工業大学, 科学技術創成研究院, 助教 (00635807)
梶谷 孝 東京工業大学, 科学技術創成研究院, 特任講師 (20469927)
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| Research Collaborator |
Kajitani Takashi
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| Project Period (FY) |
2014-07-10 – 2019-03-31
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| Keywords | π電子系化学 / 自己集合化 / ソフトマテリアル / 有機薄膜 / 有機エレクトロニクス |
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| Outline of Final Research Achievements |
Through this research, we found three types of self-assembly systems that exhibit ultra-long-range structural order at several millimeters to centimeters length scales. Based on detailed studies on these systems, we have demonstrated (1) the fabrication and applications of completely oriented organic thin films with completely controlled molecular orientation, (2) the discovery of a material that shows fluidity while having single crystal-like three-dimensional structural order and macroscopic collective molecular motion controlled by chirality, (3) the discovery of a material featuring a new structural form, which undergoes phase-transition without losing the dimensionality of structural order, and (4) the discovery of a new phenomenon that magnetic field can change the phase diagram of a diamagnetic molecular assembly. Along with these works, we successfully developed a new organic reaction capable of constructing a large π-electronic system.
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| Free Research Field |
π電子系化学
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| Academic Significance and Societal Importance of the Research Achievements |
これまでに実現が困難であった超長距離構造秩序を示す分子集合体の発見は、有機物系の応用において要求されている「ナノとマクロを繋ぐ物質設計戦略」に一つの解決策を与えるものと考えられる。本研究成果は、学術的に価値が高いと考えられるが、トリプチセン系においては有機トランジスタの高性能化技術や固体表面の修飾技術としても研究が発展しており、将来的には社会実装される可能性も見えてきた。単結晶様の構造規則性と流動性を併せ持つ新物質や、強磁場による相図の書き換え現象は、化学や物質科学ばかりでなく物理学の観点からみても新しい事象の発見といえ、広く基礎科学的知見の発展をもたらす成果として位置付けられる。
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