Bottom-up Synthesis of Light Emitting CNT segment on the Basis of the Development of Highly Efficient Cyclodehydrogenation Reaction

2019 Fiscal Year Final Research Report

• Project/Area Number: 16K05679
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Organic chemistry
• Research Institution: Hirosaki University
• Principal Investigator: ITO Shunji 弘前大学, 理工学研究科, 教授 (10213042)
• Project Period (FY): 2016-04-01 – 2020-03-31
• Keywords: 環状ポリフェニレン化合物 / 湾曲ナノグラフェン / CNTセグメント / ボトムアップ合成 / 発光材料

Outline of Final Research Achievements

We have established the development of novel construction method for the warped nanographene skeleton. From expansion of the novel synthetic procedure, we have developed a novel synthetic procedure for constructing large warped nanocarbon materials with a finite belt width. Furthermore, we have revealed a detailed light emission function in the solid state of the successfully synthesized rigid cyclic π-conjugated systems, such as giant cyclic phenylene acetylene compound and cyclic polyphenylene compound, in which benzene rings are densely integrated. We have clarified their functions as a carbon-based material with highly efficient emission in the solid state.

Free Research Field

構造有機化学

Academic Significance and Societal Importance of the Research Achievements

完全な縮環構造よりなるベルト状にπ共役系が広がったCNTセグメントには、多様な機能が期待されている。本研究課題のように環状にさまざまなタイプでπ共役系化合物を集積する手法の開発は、マクロなCNTと単環のπ共役系との間を埋める新たな研究領域の創出に期待が持たれる研究課題と考えている。このような化合物群において、固体状態における発光機能の解明は、有機ELなどに応用可能な固体発光材料の開発に結びつく新たな分子設計指針を与えるものと期待できる。