Development of highly emissive fluorescence sensors based on conformational changes and photoreactions of polycyclic aromatic compounds

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K05474
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 33010:Structural organic chemistry and physical organic chemistry-related
• Research Institution: Kanazawa University
• Principal Investigator: Maeda Hajime 金沢大学, 物質化学系, 教授 (40295720)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: ピレン / ペリレン / フェナントレン / クラウンエーテル / オリゴエチレングリコール / 金属イオン / 光反応 / 蛍光

Outline of Final Research Achievements

Highly emissive fluorescence sensors based on the conformational changes and photoreactions of polycyclic aromatic compounds have been developed. Pyrene, perylene and phenanthrene derivatives with crown ethers or oligoethylene glycol chains worked as fluorescence sensors that recognize cations selectively. Fluorescence sensors capable of simultaneously recognizing the presence or absence of metal ions and light irradiation were designed by photoreactions of pyrene-alkene linked compounds. Pyrene derivatives having both electron-donating and electron-withdrawing groups worked as fluorescence sensors that respond to the polarity of the solvents.

Free Research Field

有機化学

Academic Significance and Societal Importance of the Research Achievements

高性能な発光材料の開発は、有機EL、照明、発光ダイオード、インクなどの分野にとって重要である。本研究は添加物、光照射、溶媒によって可逆的に強い蛍光の色が変わる、色が消える、色がつくという材料の開発を扱ったものであり、工業的にはこれまでにない優れた高機能性発光材料の提供へと結びつくことが期待される。また、光励起状態にある分子の性質の解明、蛍光強度の増大と蛍光波長の長波長化・短波長化に関する基礎データを提供するものとして、学術的にも意義がある。