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Creation of circularly polarized luminescence materials based on dinuclear triple-stranded helicates

Research Project

Project/Area Number 20K21212
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 34:Inorganic/coordination chemistry, analytical chemistry, and related fields
Research InstitutionKyushu University

Principal Investigator

Ono Toshikazu  九州大学, 工学研究院, 准教授 (20643513)

Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2020: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Keywords円偏光発光 / アルミニウム / ガリウム / インジウム / らせん錯体 / 光学分割 / セキュリティインク / キラリティ / 多核錯体 / アルミニウム錯体 / 典型元素錯体 / シッフ塩基 / 多色発光 / 蛍光 / ねじれ角 / 計算化学 / 13属元素 / 円偏光発光材料 / 溶媒効果
Outline of Research at the Start

本研究では、多種多様の配位子と金属イオンの組み合わせによる発光性二核三重らせん錯体の網羅的合成を進め、らせん構造のサイズ・ピッチ・歪みに伴うキラルな光学特性の評価を目的とする。続いてらせん錯体をモチーフとした、イオン・分子・バイオ分子(DNA、タンパク質、糖鎖)に対する高感度・選択的なセンサーの開発や、多孔性配位高分子への展開など、新物質群の創製に挑戦する。

Outline of Final Research Achievements

Materials exhibiting circularly polarized luminescence (CPL) are are expected to be used in wide variety of applications such as 3D displays, security inks, and biological imaging. However, conventional CPL-active materials have many problems such as (1) use of expensive chiral sources and rare metals as raw materials, (2) complicated and environmentally hazardous organic synthesis, and (3) low stability against thermal and medium changes (racemization). In this study, we have achieved the synthesis of aluminum dinuclear triple helix complexes and developed CPL-active materials with excellent photophysical properties with photoluminescence quantum yields exceeding 50%, which could solve the above problems. These compounds are also attractive because they can be synthesized using inexpensive raw materials such as formylpyrrole, hydrazine, and aluminum chloride.

Academic Significance and Societal Importance of the Research Achievements

円偏光発光材料は、生体イメージング材料や次世代のセキュリティ技術など生命科学分野・工学分野への応用が期待される新しい材料であり、優れた材料が開発されると化学以外の分野への波及効果も非常に高く、円偏光発光材料を中心に新しい研究領域が創成されることが期待される。資源の少ない日本において、レアメタル等の代替物質を探る元素戦略が注目を集める中、特に地殻中に豊富に存在する金属元素であるアルミニウムを用いた機能性材料(円偏光発光材料)の創製は、社会情勢を見据えたものであり、優れた先見性・創造性に富む研究であると確信している。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (9 results)

All 2022 2021 2020 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (1 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Design of Dimeric Dinuclear Boron Complexes with Flexible Linkers: Aggregation-induced White-light Emission via Molecular Engineering2022

    • Author(s)
      Megumi Ihara, Luxia Cui, Yuto Konishi, Yoshio Hisaeda, Toshikazu Ono
    • Journal Title

      Chemistry Letters

      Volume: 51 Issue: 3 Pages: 300-302

    • DOI

      10.1246/cl.210794

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Insights into Proton Dynamics in a Photofunctional Salt‐Cocrystal Continuum: Single‐Crystal X‐ray, Neutron Diffraction, and Hirshfeld Atom Refinement2022

    • Author(s)
      Yoshio Yano, Toshikazu Ono, Takashi Ohhara, Yoshio Hisaeda
    • Journal Title

      Chemistry A European Journal

      Volume: 27 Issue: 71 Pages: 17802-17807

    • DOI

      10.1002/chem.202103044

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydrogen Bond Engineering Visualized by Picometer-Level Distortion of Planar Porphyrin Isomers2022

    • Author(s)
      Daiki Koga, Toshikazu Ono, Hyuga Shinjo, Yoshio Hisaeda
    • Journal Title

      The Journal of Physical Chemistry Letters

      Volume: 12 Issue: 42 Pages: 10429-10436

    • DOI

      10.1021/acs.jpclett.1c03020

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dinuclear Triple-Stranded Helicates Comprising Al(III), Ga(III), or In(III) and a Hydrazine-Linked Bisiminopyrrolyl Ligand: Synthesis, Structure, Optical Resolution, and Chiroptical Properties2021

    • Author(s)
      Ishihama Kohei、Ono Toshikazu、Okawara Toru、Harada Takunori、Furusho Kiyonao、Hasegawa Masashi、Nojima Yuki、Koide Taro、Abe Masaaki、Hisaeda Yoshio
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 94 Issue: 2 Pages: 573-578

    • DOI

      10.1246/bcsj.20200327

    • NAID

      130007995379

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dinuclear Triple‐Stranded Helicates Composed of Tetradentate Ligands with Aluminum(III) Chromophores: Optical Resolution and Multi‐color Circularly Polarized Luminescence Properties2020

    • Author(s)
      Ono Toshikazu、Ishihama Kohei、Taema Ai、Harada Takunori、Furusho Kiyonao、Hasegawa Masashi、Nojima Yuki、Abe Masaaki、Hisaeda Yoshio
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 60 Issue: 5 Pages: 2614-2618

    • DOI

      10.1002/anie.202011450

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 多核ホウ素錯体からなる旗蝶番型色素の合成とメカノフォアへの 応用2022

    • Author(s)
      前田 桃花・小野 利和・久枝 良雄
    • Organizer
      日本化学会 第102春季年会 (2022)
    • Related Report
      2021 Annual Research Report
  • [Remarks] 九州大学大学院工学研究院応用化学部門分子教室 久枝研究室ホームページ

    • URL

      http://www.chem.kyushu-u.ac.jp/~yhisaeda/?page_id=67

    • Related Report
      2021 Annual Research Report
  • [Remarks] 世界初!アルミニウムを含む三重らせん型色素からの円偏光発光を実現

    • URL

      https://www.kyushu-u.ac.jp/ja/researches/view/516

    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] 発光性ホウ素化合物及びメカノクロミックポリマー2022

    • Inventor(s)
      小野利和・久枝良雄
    • Industrial Property Rights Holder
      小野利和・久枝良雄
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Related Report
      2021 Annual Research Report

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Published: 2020-08-03   Modified: 2023-01-30  

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