• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of novel highly reactive cPCET reactive intermediate based on supramolecular porphyrinoid conjugate

Research Project

Project/Area Number 22K19045
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 InstitutionNagoya University

Principal Investigator

Yamada Yasuyuki  名古屋大学, 物質科学国際研究センター, 准教授 (10385552)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2023: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsメタン / 酸化触媒 / 超分子 / ポルフィリン / フタロシアニン / ポルフィセン / 鉄 / 二核錯体 / cPCET / 鉄オキソ種 / 超分子触媒 / ロタキサン / オキソ種 / cPCET活性種 / ポルフィリノイド
Outline of Research at the Start

応募者らは最近、4重ロタキサン結合により連結されたポルフィリンとフタロシアニンのface-to-face会合体内に構築した窒素架橋鉄二核錯体とテトラアニオン性ポルフィリンとのイオン性会合体 T が過剰量のH2O2を含む100°C以下の酸性水溶液中、メタンを触媒的にメタノール、ホルムアルデヒド、ギ酸へと変換可能であり、数あるメタン酸化分子触媒の中でも最高クラスの触媒活性を示すことを見出した。
本研究ではTの超分子骨格を利用しつつ、Tの中心金属および架橋配位子を変化させた新奇な構造を持つ超分子型cPCET活性種を構築して、高活性なメタン資源化反応活性種を探索する。

Outline of Final Research Achievements

In this research, we aimed to synthesize novel heteroatom-bridged iron porphyrinoid dimers possessing high catalytic methane oxidation activity. For this purpose, we synthesized a nitrido-bridged heterodimer of an iron porphyrin and an iron phthalocyanine and compared its catalytic methane oxidation activity with those of a nitrido-bridged porphyrin homodimer and a nitrido-bridged phthalocyanine homodimer. As a result, it was found that the catalytic activity was decreased as the number of porphyrin ring was increased. Moreover, we synthesized two different nitrido-bridged iron porphyrinoid dimers including one or two porphycene rings to find that the catalysts themselves were decomposed during the methane oxidation because the reactive intermediate became unstable.

Academic Significance and Societal Importance of the Research Achievements

メタンは天然ガスやメタンハイドレートとして世界中に豊富に存在する。一方でメタンは二酸化炭素の20倍以上の温室効果を示す環境汚染物質である。このため、メタンを低エネルギーで効率良く有用化学物質へと変換する触媒が開発できれば、資源問題・環境問題解決に資する。窒素架橋鉄ポルフィリノイド二量体は、数ある分子触媒の中でも高いメタン酸化触媒活性を持つ物質群であるが、合成された種類が極めて限られており、構造と反応性の相関の解明も十分に進んではいなかった。本研究は、窒素架橋鉄ポルフィリノイド型メタン酸化触媒開発の新たな指針を提供したという学術的な意義がある。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (11 results)

All 2024 2023 2022

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 7 results)

  • [Journal Article] Effect of porphyrin ligands on the catalytic CH<sub>4</sub> oxidation activity of monocationic μ-nitrido-bridged iron porphyrinoid dimers by using H<sub>2</sub>O<sub>2</sub> as an oxidant2024

    • Author(s)
      Yamada Yasuyuki、Miwa Yusuke、Toyoda Yuka、Uno Yoshiki、Phung Quan Manh、Tanaka Kentaro
    • Journal Title

      Dalton Transactions

      Volume: 53 Issue: 15 Pages: 6556-6567

    • DOI

      10.1039/d3dt04313d

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of CH4 oxidation activity of high-valent iron-oxo species of a μ-nitrido-bridged heterodimer of iron porphycene and iron phthalocyanine2023

    • Author(s)
      Yasuyuki Yamada*, Yusuke Miwa, Yuka Toyoda, Quan Manh Phung, Kin-ichi Oyama, Kentaro Tanaka*
    • Journal Title

      Catalysis Science & Technology

      Volume: 13 Issue: 6 Pages: 1725-1734

    • DOI

      10.1039/d2cy01980a

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Stacking of a Cofacially Stacked Iron Phthalocyanine Dimer on Graphite Achieved High Catalytic CH<sub>4</sub> Oxidation Activity Comparable to That of pMMO2023

    • Author(s)
      Yamada Yasuyuki、Morita Kentaro、Sugiura Takuya、Toyoda Yuka、Mihara Nozomi、Nagasaka Masanari、Takaya Hikaru、Tanaka Kiyohisa、Koitaya Takanori、Nakatani Naoki、Ariga-Miwa Hiroko、Takakusagi Satoru、Hitomi Yutaka、Kudo Toshiji、Tsuji Yuta、Yoshizawa Kazunari、Tanaka Kentaro
    • Journal Title

      JACS Au

      Volume: 3 Issue: 3 Pages: 823-833

    • DOI

      10.1021/jacsau.2c00618

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Synthesis of Isomeric Tb3+-Phthalocyanine Double-Decker Complexes Depending on the Difference in the Direction of Coordination Plane and Their Magnetic Properties2023

    • Author(s)
      Yasuyuki Yamada, Hiroaki Nakajima, Chisa Kobayashi, Yoshiaki Shuku, Kunio Awaga, Shigehisa Akine, Kentaro Tanaka
    • Journal Title

      Chemistry, A European Journal

      Volume: 29 Issue: 1

    • DOI

      10.1002/chem.202203272

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] 高活性メタン酸化触媒創製に超分子化学の発想で挑む2023

    • Author(s)
      山田 泰之
    • Organizer
      第56回酸化反応討論会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] How to Utilize Supramolecular Methodology for Achieving Highly Potent Artificial Oxygenase2023

    • Author(s)
      Yasuyuki Yamada
    • Organizer
      錯体化学会第73回討論会シンポジウム”Designer Metalloenzyme and Beyond”
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Direct Observation of Elecrtrochemically Generated High-Valent Iron-Oxo Species That can be Utilized for CH4 Oxidation Reaction2023

    • Author(s)
      Yamada, Y. and Nagasaka. M.
    • Organizer
      UVSOR&#8211;III+MAX IV International Workshop “Frontier of Soft X-ray Spectroscopy for Chemical Processes in Solutions”
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 担持型鉄錯体触媒によるメタン酸化ー超分子化学の発想に基づいて人工メタン酸化分子触媒の活性を天然酵素のレベルまで高めるー2023

    • Author(s)
      山田 泰之
    • Organizer
      2022年度高難度選択酸化反応研究会シンポジウム
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Development of Highly Potent Methane Oxidation Catalysts Based on Double-Decker-Type Iron Porphyrinoids2022

    • Author(s)
      Yasuyuki Yamada
    • Organizer
      10th Asian Biological Inorganic Chemistry (AsBIC10)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Potent Methane Oxidation Catalyst Achieved by Close Stacking of Double-Decker-Type Iron Phthalocyanine Complex on Graphite Surface2022

    • Author(s)
      Yasuyuki Yamada
    • Organizer
      8th Asian Conference on Coordination Chemistry
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Highly Potent Methane Oxidation Catalyst Achieved by Close Stacking of Double-Decker-Type Iron Phthalocyanine Complex on Graphite Surface2022

    • Author(s)
      Yasuyuki Yamada, Yuka Toyoda, Takuya Sugiura, Kentaro Morita, Kentaro Tanaka
    • Organizer
      ICPAC Kotakinabaru 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited

URL: 

Published: 2022-07-05   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi