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Development of mechanical crystals using dithionite complexes

Research Project

Project/Area Number 21K05103
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 34010:Inorganic/coordination chemistry-related
Research InstitutionKindai University

Principal Investigator

NAKAI Hidetaka  近畿大学, 理工学部, 教授 (70377399)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords合成化学 / 光物性 / メカニカル結晶 / 有機金属錯体 / ジチオナイト錯体
Outline of Research at the Start

メカニカル結晶は、光・熱などのエネルギーを直接材料の動きに変換できる「エネルギー変換素子や人工生体材料」等への応用が期待されている新しい材料である。本研究は、構造および機能の多様性に富んだ有機金属錯体の新規合成を基盤として、偶然の発見に支えられているメカニカル結晶を合目的的に開発するものである。

Outline of Final Research Achievements

With the aim of purposefully developing mechanical crystals, we have focused on the “two mechanical functions (bending and jumping of the crystals upon light irradiation)” exhibited by dithionite complex crystals, and have conducted research mainly on the design and synthesis of new dithionite complexes. As a result, we have succeeded in synthesizing new dithionite complexes with various substituents and a new analogous complex of dithionite complex, and have obtained knowledge on the “correlation between various properties of mechanical functions and molecular/crystal structures” that will lead to the creation of mechanical materials.

Academic Significance and Societal Importance of the Research Achievements

メカニカル結晶は、光・熱などのエネルギーを直接材料の動きに変換できる「エネルギー変換素子や人工生体材料」等への応用が期待されている新しい材料である。分子結晶が示すメカニカル機能に関する研究は、様々な系の発見と知見の蓄積が必要な萌芽期にある。本研究は、構造および機能の多様性に富んだ有機金属錯体の合成を基盤としたものであり、本研究で得られた分子設計に繋がる成果は、偶然の発見に支えられているメカニカル結晶の開発に一石を投じるものである。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (11 results)

All 2024 2023 2022 2021

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (6 results)

  • [Journal Article] Unusual motion of the <i>n</i>-methoxypropyl moiety observed in the photochromic crystals of an organorhodium dithionite complex with <i>n</i>-methoxypropyltetramethylcyclopentadienyl ligands2022

    • Author(s)
      Kajiwara Yuu、Miyata Seiya、Nakai Hidetaka
    • Journal Title

      Dalton Transactions

      Volume: 51 Issue: 1 Pages: 48-52

    • DOI

      10.1039/d1dt03347f

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Crystalline-State Photochromism of a Newly Synthesized Rhodium Dithionite Complex with Inflexible <i>Cyclo</i>-Pentyl Groups2022

    • Author(s)
      Kajiwara Yuu、Nakai Hidetaka
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 95 Issue: 1 Pages: 169-174

    • DOI

      10.1246/bcsj.20210396

    • NAID

      130008159285

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Crystal polymorphism and crystalline-state photochromism of a rhodium dithionite complex with <i>n</i>-methoxypropyl moieties2022

    • Author(s)
      Kajiwara Yuu、Nakai Hidetaka
    • Journal Title

      CrystEngComm

      Volume: 24 Issue: 7 Pages: 1437-1441

    • DOI

      10.1039/d1ce01613j

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Photoinduced Bending Crystals of a Rhodium Dithionite Complex with <i>n</i>-Methoxybutyl Moieties2022

    • Author(s)
      Kajiwara Yuu、Yoshimizu Hikaru、Matsumoto Kodai、Nakai Hidetaka
    • Journal Title

      Chemistry Letters

      Volume: 51 Issue: 4 Pages: 372-374

    • DOI

      10.1246/cl.210798

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Molecular motion in organometallic crystals: photoinduced 2π/5 rotation of <i>n</i>-hexyltetramethylcyclopentadienyl ligand2021

    • Author(s)
      Nakai Hidetaka、Kajiwara Yuu、Miyata Seiya
    • Journal Title

      CrystEngComm

      Volume: 23 Issue: 21 Pages: 3790-3793

    • DOI

      10.1039/d1ce00093d

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Synthesis and properties of iridium dinuclear complexes with oxysulfur ligands2024

    • Author(s)
      鈴木新時、中井英隆
    • Organizer
      日本化学会第104春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 硫黄酸化物配位子を有するロジウムおよびイリジウム二核錯体の合成と構造および反応性2023

    • Author(s)
      鈴木新時、中井英隆
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Research-status Report
  • [Presentation] エチルテトラメチルシクロペンタジエニル配位子を有するイリジウムジチオナイト錯体の結晶相反応2023

    • Author(s)
      Li Yucheng、中井英隆
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Research-status Report
  • [Presentation] 硫黄酸化物配位子を有するロジウムおよびイリジウム二核錯体の合成と反応性2022

    • Author(s)
      鈴木新時、中井英隆
    • Organizer
      錯体化学会第72回討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] Photochromism in polymorphic crystals of a rhodium dithionite complex2022

    • Author(s)
      梶原悠、宮田誠也、中井英隆
    • Organizer
      日本化学会第102春季年会
    • Related Report
      2021 Research-status Report
  • [Presentation] n-メトキシプロピル基を有するロジウムジチオナイト錯体の合成と結晶相フォトクロミズム2021

    • Author(s)
      梶原悠、中井英隆
    • Organizer
      錯体化学会第69回討論会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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