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Creation of Telescopic-type Sponge Crystal via Nano-supramolecular Chemistry

Research Project

Project/Area Number 16K13609
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Nanostructural chemistry
Research InstitutionOsaka University

Principal Investigator

KONNO Takumi  大阪大学, 理学研究科, 教授 (50201497)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsイオン結晶 / 結晶工学 / 超分子化学
Outline of Final Research Achievements

In this work, we investigated the development of unique ionic nano-supramolecular structures, in which cationic and anionic species are arranged so as to possess large crystal interstices that can accommodate a number of small molecules, by the effective apply of ‘Nano-supramolecular Chemistry’. As a result, we succeeded in the creation of unprecedented nano-supramolecular structures, which show a reversible expansion-contraction of their lattice volumes with retention of a single-crystallinity, accompanied by the reversible adsorption-removal of small molecules.

Academic Significance and Societal Importance of the Research Achievements

単純な無機固体の中には、脱溶媒により結晶体積が大きく減少する物質も知られている。しかし、単純な無機固体においては、脱溶媒により結晶の対称性が変化し、単結晶性を失うのが一般的である。本研究において開発したイオン結晶は、単結晶を維持しつつ、脱水/再水和により可逆的な大きな体積変化を示す特性を有することが明らかとなった。この結晶中においては、水素結合やπ相互作用などの多数の分子間相互作用が存在しており、このような分子間相互作用を複合的に利用することが、柔軟な構造変化を示す結晶を得る鍵であることを示した。このような小分子の脱着に応じて体積が変化する単結晶は、今後、機能性材料としての応用が期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (4 results)

All 2018 2017

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

  • [Journal Article] Dielectric Jump and Negative Electrostriction in Metallosupramolecular Ionic Crystals2018

    • Author(s)
      Satoshi Yamashita, Yasuhiro Nakazawa, Shusuke Yamanaka, Mitsutaka Okumura, Tatsuhiro Kojima, Nobuto Yoshinari, Takumi Konno
    • Journal Title

      Scientific Report

      Volume: 8 Issue: 1 Pages: 2606-2606

    • DOI

      10.1038/s41598-018-20750-1

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Creation of Metallosupramolecular Ionic Crystals Based on Metalloligand Approach2018

    • Author(s)
      Takumi Konno
    • Organizer
      The 10th International Symposium on Nano and Supramolecular Chemistry
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A Variety of Metallosupramolecular Architectures Derived from Gold(I) Metalloligands with D-Penicillamine2017

    • Author(s)
      Takumi Konno
    • Organizer
      The 11th Pure and Applied Chemistry International Conference
    • Place of Presentation
      Bangkok, Thailand
    • Year and Date
      2017-02-02
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Metalloligand Approach That Leads to the Creation of Non-Coulombic Ionic Solids2017

    • Author(s)
      Takumi Konno
    • Organizer
      The 9th International Symposium on Nano and Supramolecular Chemistry, Naples, Italy
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2016-04-21   Modified: 2020-03-30  

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