Creation of polycyclic aromatic compound type fused-azulenes aimed for the organic electronics

2021 Fiscal Year Final Research Report

• Project/Area Number: 17K05780
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Organic chemistry
• Research Institution: Shinshu University
• Principal Investigator: Shoji Taku 信州大学, 学術研究院理学系, 准教授 (60581014)
• Project Period (FY): 2017-04-01 – 2022-03-31
• Keywords: アズレン / 縮環アズレン

Outline of Final Research Achievements

We developed a method for the preparation of ring-fused azulene derivatives and evaluated their optical and electrochemical properties for application to organic electronics. As a result, the fused-azulene derivatives prepared in this project are found to exhibit unique fluorescent properties that are dependent on the pH of the solution. Furthermore, the the fused-azulene derivatives are also revealed to exhibit the electrochromism, which is a reversible and remarkable color change under the electrochemical redox conditions.

Free Research Field

有機化学

Academic Significance and Societal Importance of the Research Achievements

本課題で新たに合成した縮環アズレン類は電気的刺激によって顕著に色調が変化することからディスプレイ素子等の有機電子材料への応用が期待できる。また、一連の縮環アズレン類はpHに依存して発光を示すことが明らかとなったため、生体細胞の発光性染色色素等への応用にも期待がもたれる結果が得られた。