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Crystal Design for Multiple Chromism by Molecular Conformation Control

Research Project

Project/Area Number 17K05745
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Physical chemistry
Research InstitutionTokyo Institute of Technology

Principal Investigator

Uekusa Hidehiro  東京工業大学, 理学院, 准教授 (60242260)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsフォトクロミズム / サーモクロミズム / サリチリデンアニリン / 結晶構造解析 / 錯体形成 / 結晶構造 / 錯体構造 / 多重クロミズム / 分子設計
Outline of Final Research Achievements

In order to create new crystalline materials that show different chromism in response to multiple external stimuli and are expected to be used as multiple sensors, we have explored and designed new crystalline materials that show different chromism depending on the conformation of the molecules in the crystal. Salicylidene anilines exhibit a variety of molecular conformations, which are linked to chromic properties, depending on the crystalline environment. First, a number of co-crystals of salicylidene aniline derivatives were prepared, and a correlation between photochromism and structure was derived from the diverse conformations in the crystals. Next, metal complexes of salicylidene aniline derivatives were prepared and revealed to be multi-chromic crystals with different color changes in response to light, heat and pressure.

Academic Significance and Societal Importance of the Research Achievements

クロミズムは外部刺激により物質の色が可逆的に変化する現象であり、光記録情報媒体や外部刺激に対するセンサー物質として応用的にも重要である。現在、クロミズム物質の高度化が期待されている。その中で単一の刺激に反応するだけでなく、1つの化合物が複数の刺激に反応する新しい化合物の創製を行った。これを実用することができれば、製品に対する刺激の履歴を見るなど新しいクロミズムセンサーとなりうる。一方、クロミズムの原理について結晶構造を用いて詳細に明らかにすることは、今後の新しいクロミズムセンサー物質開発に寄与するところが大きい。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (14 results)

All 2019 2018 2017 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results) Book (1 results) Remarks (2 results)

  • [Journal Article] In-Situ Photochromism Switching with Crystal Jumping through the Deammoniation of N-Salicylideneaniline Ammonium Salt.2019

    • Author(s)
      H. Sugiyama, K. Johmoto, A. Sekine, H. Uekusa
    • Journal Title

      Cryst. Growth Des.

      Volume: 19 Issue: 8 Pages: 4324-4331

    • DOI

      10.1021/acs.cgd.9b00039

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reversible on/off switching of photochromic properties in N-salicylideneaniline co-crystals by heating and humidification2019

    • Author(s)
      H. Sugiyama, K. Johmoto, A. Sekine, H. Uekusa
    • Journal Title

      CrystEngComm

      Volume: 21 Issue: 20 Pages: 3170-3175

    • DOI

      10.1039/c9ce00442d

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of Visible-Light Driven Cu(I) Complex Photosensitizers for Photocatalytic CO2 Reduction2019

    • Author(s)
      Takeda Hiroyuki, Monma Yu, Sugiyama Haruki, Uekusa Hidehiro, Ishitani Osamu
    • Journal Title

      Front. Chem.

      Volume: 7 Pages: 418-418

    • DOI

      10.3389/fchem.2019.00418

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] In situ control of photochromic behavior through dual photo-isomerization using cobaloxime complexes with a spiropyran derivative and 2-cyanoethyl ligands2018

    • Author(s)
      Sekine Akiko、Tanaka Masato、Uekusa Hidehiro、Yasuda Nobuhiro
    • Journal Title

      CrystEngComm

      Volume: 20 Issue: 39 Pages: 6061-6069

    • DOI

      10.1039/c8ce00982a

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Relationship between crystal structures and photochromic properties of N-salicylideneaminopyridine derivatives2018

    • Author(s)
      Haruki Sugiyama and Hidehiro Uekusa
    • Journal Title

      CrystEngComm

      Volume: 20 Issue: 15 Pages: 2144-2151

    • DOI

      10.1039/c8ce00003d

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] In-Situ Photochromic Property Switching of N-Salicylideneaniline Crystals by Deammoniation or Dehydration Phase Transitions2019

    • Author(s)
      H. Sugiyama, A. Sekine, H. Uekusa
    • Organizer
      AsCA 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Selective inclusion of fragrant molecule by sandwich- or channel-type inclusion crystals of two bisphenol hosts2019

    • Author(s)
      T. Ueno, A. Sekine, H. Uekusa
    • Organizer
      AsCA 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Crystal Engineering of scented inclusion crystal and its sustained-release property2018

    • Author(s)
      Hidehiro Uekusa, Fumiaki Sano, Akiko Sekine
    • Organizer
      AsCA 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Crystal Structure Engineering of Pharmaceutical Crystal2018

    • Author(s)
      Hidehiro Uekusa
    • Organizer
      the 44th Congress on Science and Technology of Thailand
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] クロミック金属錯体の創成と固相反応を利用したその場物質変換2017

    • Author(s)
      杉山晴紀、関根あき子、植草秀裕
    • Organizer
      第26回有機結晶シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] Color tuning of an organic photochromic compound by metal complex formation2017

    • Author(s)
      Haruki Sugiyama, Hidehiro Uekusa
    • Organizer
      ISPAC meeting 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Book] Control of photochromism in N-salicylideneaniline by crystal engineering2018

    • Author(s)
      K. Johmoto, H. Uekusa
    • Total Pages
      17
    • Publisher
      De Gruyter
    • Related Report
      2018 Research-status Report
  • [Remarks] 植草研究室ホームページ

    • URL

      http://www.chemistry.titech.ac.jp/~uekusa/

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
  • [Remarks] 植草研究室ホームページ

    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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