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Development of organic spintronics devices through precise synthesis of helical polymers

Research Project

Project/Area Number 21KK0084
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 26:Materials engineering and related fields
Research InstitutionKanazawa University

Principal Investigator

西村 達也  金沢大学, 物質化学系, 准教授 (00436528)

Co-Investigator(Kenkyū-buntansha) DAS SANDIP  金沢大学, ナノ生命科学研究所, 特任助教 (00873407)
谷口 剛史  金沢大学, 薬学系, 助教 (60444204)
前田 勝浩  金沢大学, ナノ生命科学研究所, 教授 (90303669)
Project Period (FY) 2021-10-07 – 2025-03-31
Project Status Granted (Fiscal Year 2023)
Budget Amount *help
¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2024: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Keywordsスピントロニクス / らせん高分子 / リビング重合 / ポリフェニルアセチレン / ポリジフェニルアセチレン
Outline of Research at the Start

技術の進歩によりスピントロニクスの研究が盛んに行われるようになった。イスラエルWeizmann研究所のNaamanらによるCISS効果の報告を突破点として、いくつかの生体高分子を用いる有機スピントロニクス研究が開始された。しかし、精密に分子設計された有機化合物を用いる研究はほとんど無く、CISS効果の全容解明には有機分子の多様化が必要である。我々は最近、末端官能基化らせん高分子の精密合成法の開発に成功した。本共同研究では、CISS効果の提唱者でこの分野を牽引するNaaman教授と共同してキラルな有機分子によるスピン偏極効果の本質を理解し、新しい高スピン偏極有機デバイスの創製を目指す。

Outline of Annual Research Achievements

技術の進歩によりスピントロニクスの研究が盛んに行われるようになった。スピン電子はスピン角運動量の自由度をもち、上向きと下向きの2種類存在する。それらは鏡像関係にあるため、キラルな化合物中を通り抜ける際に、どちらか一方のスピンが偏って移動する。これはキラル分子によるスピン偏極現象(CISS)効果として Naaman教授らによって報告された(Science, 2011)。この報告を突破点として、いくつかの生体高分子を用いる有機スピントロニクス研究が開始されている。一方向巻きのらせん状生体分子に対して電場を印加すると、一方のスピンが優先的に移動する。しかし、精密に分子設計された有機化合物を用いる研究はほとんど無く、CISS効果の全容解明には有機分子の多様化が必要である。有機物はスピン軌道相互作用が小さいため、スピン偏極素子の材料としては注目されてこなかったが、これは分子設計に大きな制限があったためであり、本研究ではこの問題を解決し有機スピン偏極素子の実用化を目指す。我々は最近、末端官能基化らせん高分子の精密合成法の開発に成功した。本共同研究では、我々が独自に開発したらせん高分子の精密合成法を用いて、スピン偏極を増幅する効果的な主鎖構造や機能部位の配列制御を見出し、CISS効果の全容解明のための基礎科学をCISS効果の提唱者でこの分野を牽引するNaaman教授と共同してキラルな有機分子によるスピン偏極効果の本質を理解し、新しい高スピン偏極有機デバイスの創製を目指す。2023年度は、ポリジフェニルアセチレンの末端にSH基を導入することに成功したため、その単分子膜についてCISS効果の測定を試みた。

Current Status of Research Progress
Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

2023年度、8月に国際的に注目されているCISSのシンポジウム(ゴードンリサーチ会議)に参加・発表を行った。その際、ナーマン教授とディスカッションを行い、10月にイスラエルワイズマン研究所へ出向くことを約束していたが、紛争が起こったため入国する事が出来ず、かつイスラエルの研究所のアクティビティが落ちたため、準備したサンプルを郵送することもできず、測定に至っていない。一方、2024年3月にナーマン教授を日本へ招聘し、金沢大学で講演会、つづくディスカッションをおこなった。2024年度は情勢をみつつ、渡航し、測定を行う予定である。

Strategy for Future Research Activity

ポリジフェニルアセチレンの末端修飾の手法が確立されたため、SAM膜の形成を行い、CISS効果を測定する。また、新たなCISSに関する予備実験:生体高分子を用いる実験をイスラエルで進めており、我々のらせん高分子を利用することで、CISSに関する新しい知見を得る予定である。

Report

(3 results)
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (29 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (3 results) Journal Article (25 results) (of which Int'l Joint Research: 12 results,  Peer Reviewed: 25 results,  Open Access: 14 results) Presentation (1 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Int'l Joint Research] Los Alamos(米国)

    • Related Report
      2023 Research-status Report
  • [Int'l Joint Research] Futan University(中国)

    • Related Report
      2023 Research-status Report
  • [Int'l Joint Research] Weizmann Institute(イスラエル)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Recovery of rhodium from glacial acetic acid manufacturing effluent using cellulose-based sorbent2024

    • Author(s)
      Biswas Foni B.、Endo Masaru、Rahman Shafiqur、Rahman Ismail M.M.、Nakakubo Keisuke、Mashio Asami S.、Taniguchi Tsuyoshi、Nishimura Tatsuya、Maeda Katsuhiro、Hasegawa Hiroshi
    • Journal Title

      Separation and Purification Technology

      Volume: 328 Pages: 124995-124995

    • DOI

      10.1016/j.seppur.2023.124995

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of Methods for Controlled Polymerization of Monosubstituted Acetylenes Enabling Versatile Design of Polymer End Structures2023

    • Author(s)
      Taniguchi Tsuyoshi、Nishimura Tatsuya、Maeda Katsuhiro
    • Journal Title

      Journal of Synthetic Organic Chemistry, Japan

      Volume: 81 Issue: 6 Pages: 594-606

    • DOI

      10.5059/yukigoseikyokaishi.81.594

    • ISSN
      0037-9980, 1883-6526
    • Year and Date
      2023-06-01
    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Synthesis of optically active star polymers consisting of helical poly(phenylacetylene) chains by the living polymerization of phenylacetylenes and their chiroptical properties2023

    • Author(s)
      Inaba Ayato、Nishimura Tatsuya、Yamamoto Masato、Das Sandip、Yurtsever Ayhan、Miyata Kazuki、Fukuma Takeshi、Kawaguchi Seigo、Kikuchi Moriya、Taniguchi Tsuyoshi、Maeda Katsuhiro
    • Journal Title

      RSC Advances

      Volume: 13 Issue: 44 Pages: 30978-30984

    • DOI

      10.1039/d3ra05971e

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Revisiting the Synthesis of Cellulose Acrylate and Its Modification via Michael Addition Reactions2023

    • Author(s)
      Okamoto Hiroya、Taniguchi Tsuyoshi、Takekuma Motohiro、Mashio Asami S.、Wong Kuo H.、Hasegawa Hiroshi、Nishimura Tatsuya、Maeda Katsuhiro
    • Journal Title

      Biomacromolecules

      Volume: 24 Issue: 8 Pages: 3767-3774

    • DOI

      10.1021/acs.biomac.3c00436

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Low-Valent Niobium Catalysis for the Polymerization of Electron-Rich Diphenylacetylenes2023

    • Author(s)
      Nakaguchi Daisuke、Taniguchi Tsuyoshi、Nishimura Tatsuya、Maeda Katsuhiro
    • Journal Title

      Macromolecules

      Volume: 56 Issue: 15 Pages: 5873-5880

    • DOI

      10.1021/acs.macromol.3c00740

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Facile Synthesis of Linear and Cyclic Poly(diphenylacetylene)s by Molybdenum and Tungsten Catalysis2023

    • Author(s)
      Miyairi Mami、Taniguchi Tsuyoshi、Nishimura Tatsuya、Maeda Katsuhiro
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 62 Issue: 37 Pages: 2331-2344

    • DOI

      10.1002/anie.202302332

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ultra‐fast One‐Handed Helix Induction and Its Static Helicity Memory in a Poly(biphenylylacetylene) with a Catalytic Amount of Chiral Ammonium Salts2023

    • Author(s)
      Fukuda Mayu、Morikawa Mai、Hirose Daisuke、Taniguchi Tsuyoshi、Nishimura Tatsuya、Yashima Eiji、Maeda Katsuhiro
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 62 Issue: 15

    • DOI

      10.1002/anie.202217020

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Synthesis of an Immobilized Three-state Switchable Chiral Stationary Phase for HPLC Using a Metal Cation-responsive Optically Active Poly(phenylacetylene) Derivative and Its Chiral Recognition Ability2023

    • Author(s)
      Fukuda Mayu、Nishimura Tatsuya、Hirose Daisuke、Maeda Katsuhiro
    • Journal Title

      Chemistry Letters

      Volume: 52 Issue: 3 Pages: 136-139

    • DOI

      10.1246/cl.220518

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Raspberry-like Aggregate Formation of π-Stacked Block Copolymer of Dibenzofulvene and Methyl Methacrylate Synthesized by Atom-transfer Radical Polymerization2022

    • Author(s)
      Wu Pengfei、Nishimura Tatsuya、Maeda Katsuhiro、Fujii Kensaku、Hayano Shigetaka、Nageh Hassan、Naga Naofumi、Nakano Tamaki
    • Journal Title

      Chemistry Letters

      Volume: 51 Issue: 11 Pages: 1058-1061

    • DOI

      10.1246/cl.220310

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of Oxidation on the Chiroptical Properties of Sulfur-Bridged Binaphthyl Dimers2022

    • Author(s)
      Yuan Jennifer、Jiang Lanting、Nishimura Tatsuya、Sauv? Ethan R.、Hean Duane、Maeda Katsuhiro、Wolf Michael O.
    • Journal Title

      The Journal of Organic Chemistry

      Volume: 87 Issue: 18 Pages: 12315-12322

    • DOI

      10.1021/acs.joc.2c01516

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Non‐uniform Self‐folding of Helical Poly(fluorenevinylene) Derivatives in the Solid State Leading to Amplified Circular Dichroism and Circularly Polarized Light Emission2022

    • Author(s)
      Wu Pengfei、Pietropaolo Adriana、Fortino Mariagrazia、Shimoda Shuhei、Maeda Katsuhiro、Nishimura Tatsuya、Bando Masayoshi、Naga Naofumi、Nakano Tamaki
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 61 Issue: 43

    • DOI

      10.1002/anie.202210556

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Functionalized polyvinyl alcohol aerogel for efficient and selective removal of arsenite from aqueous matrices2022

    • Author(s)
      Biswas Foni B.、Das Sandip、Nishimura Tatsuya、Endo Masaru、Fukuda Mayu、Morita Futo、Mashio Asami S.、Taniguchi Tsuyoshi、Maeda Katsuhiro、Hasegawa Hiroshi
    • Journal Title

      Chemical Engineering Journal

      Volume: 450 Pages: 138232-138232

    • DOI

      10.1016/j.cej.2022.138232

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cross-linked dithiocarbamate-modified cellulose with enhanced thermal stability and dispersibility as a sorbent for arsenite removal2022

    • Author(s)
      Nakakubo Keisuke、Endo Masaru、Sakai Yuto、Biswas Foni B.、Wong Kuo H.、Mashio Asami S.、Taniguchi Tsuyoshi、Nishimura Tatsuya、Maeda Katsuhiro、Hasegawa Hiroshi
    • Journal Title

      Chemosphere

      Volume: 307 Pages: 135671-135671

    • DOI

      10.1016/j.chemosphere.2022.135671

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Well‐Controlled Living Polymerization of Phenylacetylenes in Water: Synthesis of Water‐Soluble Stereoregular Telechelic Poly(phenylacetylene)s2022

    • Author(s)
      Echizen Kensuke、Taniguchi Tsuyoshi、Nishimura Tatsuya、Maeda Katsuhiro
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 61 Issue: 26 Pages: 2676-2686

    • DOI

      10.1002/anie.202202676

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Well‐Controlled Living Polymerization of N‐Propargylamides and Their Derivatives by Rhodium Catalysis2022

    • Author(s)
      Ito Kosuke、Taniguchi Tsuyoshi、Nishimura Tatsuya、Maeda Katsuhiro
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 61 Issue: 17

    • DOI

      10.1002/anie.202117234

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Synthesis of Pentaarylcyclobutenylrhodium(I) Complexes and Their Reactivity and Initiation Mechanism in Polymerization of Monosubstituted Acetylenes2022

    • Author(s)
      Sakamoto Shiori、Taniguchi Tsuyoshi、Sakata Yoko、Akine Shigehisa、Nishimura Tatsuya、Maeda Katsuhiro
    • Journal Title

      Organometallics

      Volume: 41 Issue: 4 Pages: 472-479

    • DOI

      10.1021/acs.organomet.1c00712

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Speciation analysis of inorganic selenium in wastewater using a highly selective cellulose-based adsorbent via liquid electrode plasma optical emission spectrometry,2022

    • Author(s)
      K.Nakakubo, T. Nishimura, F.B. Biswas, M. Endo, K. H. Wong, A. S. Mashio, T. Taniguchi, T. Nishimura, K. Maeda, H. Hasegawa
    • Journal Title

      J. Hazard. Mater.

      Volume: 424 Pages: 127250-127250

    • DOI

      10.1016/j.jhazmat.2021.127250

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Visualisation of helical structures of poly(diphenylacetylene)s bearing chiral amide pendants by atomic force microscopy2021

    • Author(s)
      A. Yurtsever, S. Das, T. Nishimura, R. Rodriguez, D. Hirose, K. Miyata, A. Sumino, T. Fukuma, K. Maeda
    • Journal Title

      Chemical Communications

      Volume: 57(92) Issue: 92 Pages: 12266-12269

    • DOI

      10.1039/d1cc05341h

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparative evaluation of dithiocarbamate-modified cellulose and commercial resins for the recovery of precious metals from aqueous matrices2021

    • Author(s)
      F.B. Biswas, I.M.M. Rahman, K.Nakakubo, K. Yunoshita, M. Endo, A. S. Mashio, T. Taniguchi, T. Nishimura, K. Maeda, H. Hasegawa
    • Journal Title

      J. Hazard. Mater.

      Volume: 418 Pages: 126308-126308

    • DOI

      10.1016/j.jhazmat.2021.126308

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Understanding the Polymerization of Diphenylacetylenes with Tantalum(V) Chloride and Cocatalysts: Production of Cyclic Poly(diphenylacetylene)s by Low-Valent Tantalum Species Generated in Situ2021

    • Author(s)
      Sueyoshi Shingyo、Taniguchi Tsuyoshi、Tanaka Saki、Asakawa Hitoshi、Nishimura Tatsuya、Maeda Katsuhiro
    • Journal Title

      Journal of the American Chemical Society

      Volume: 143 Issue: 39 Pages: 16136-16146

    • DOI

      10.1021/jacs.1c06811

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rhodium(I) Complexes Bearing an Aryl‐Substituted 1,3,5‐Hexatriene Chain: Catalysts for Living Polymerization of Phenylacetylene and Potential Helical Chirality of 1,3,5‐Hexatrienes2021

    • Author(s)
      Sakamoto Shiori、Taniguchi Tsuyoshi、Sakata Yoko、Akine Shigehisa、Nishimura Tatsuya、Maeda Katsuhiro
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 60 Issue: 41 Pages: 22201-22206

    • DOI

      10.1002/anie.202108032

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Helical springs as a color indicator for determining chirality and enantiomeric excess2021

    • Author(s)
      Maeda Katsuhiro、Hirose Daisuke、Nozaki Mai、Shimizu Yoichi、Mori Taro、Yamanaka Kentaro、Ogino Koji、Nishimura Tatsuya、Taniguchi Tsuyoshi、Moro Munetsugu、Yashima Eiji
    • Journal Title

      Science Advances

      Volume: 7 Issue: 27 Pages: 5381-5389

    • DOI

      10.1126/sciadv.abg5381

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Highly selective and straightforward recovery of gold and platinum from acidic waste effluents using cellulose-based bio-adsorbent2021

    • Author(s)
      F.B. Biswas, I.M.M. Rahman, K.Nakakubo, K. Yunoshita, M. Endo, K. Nagai, A. S. Mashio, T. Taniguchi, T. Nishimura, K. Maeda, H. Hasegawa
    • Journal Title

      J. Hazard. Mater.

      Volume: 410 Pages: 124569-124569

    • DOI

      10.1016/j.jhazmat.2020.124569

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Synthesis of Stereoregular Telechelic Poly(phenylacetylene)s: Facile Terminal Chain-End Functionalization of Poly(phenylacetylene)s by Terminative Coupling with Acrylates and Acrylamides in Rhodium-Catalyzed Living Polymerization of Phenylacetylenes2021

    • Author(s)
      Echizen Kensuke、Taniguchi Tsuyoshi、Nishimura Tatsuya、Maeda Katsuhiro
    • Journal Title

      Journal of the American Chemical Society

      Volume: 143 Issue: 9 Pages: 3604-3612

    • DOI

      10.1021/jacs.1c00150

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Selective recovery of silver and palladium from acidic waste solutions using dithiocarbamate-functionalized cellulose2021

    • Author(s)
      F.B. Biswas, I.M.M. Rahman, K.Nakakubo, K. Yunoshita, M. Endo, K. Nagai, A. S. Mashio, T. Taniguchi, T. Nishimura, K. Maeda, H. Hasegawa
    • Journal Title

      Chem. Eng. J.

      Volume: 407 Pages: 127225-127225

    • DOI

      10.1016/j.cej.2020.127225

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Development of Organic Spintronics Devices Using Precise Synthesis of Helical Poly(phenylacetylene)s2023

    • Author(s)
      Tatsuya Nishimura
    • Organizer
      International Seminar “Frontiers in Chemistry-2023"
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2021-10-22   Modified: 2024-12-25  

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