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2008 Fiscal Year Final Research Report

Structure and property relationship of ionic liquids ionics

Research Project

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Project/Area Number 19350033
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Inorganic chemistry
Research InstitutionKyushu University

Principal Investigator

YASUHIRO Umebayashi  Kyushu University, 大学院・理学研究院, 准教授 (90311836)

Project Period (FY) 2007 – 2008
Keywordsイオン液体 / X線散乱実験 / 分子動力学シミュレーション / Raman分光 / DFT計算 / 液体構造 / ダイナミクス / 構造活性相関
Research Abstract

本研究は、イオン液体に分子論的にアプローチし、液体構造とダイナミクス・イオニクスの構造活性相関を明らかにすることを目的し、以下に挙げる研究を進めた。
(1) 非プロトン性イオン液体の液体構造とダイナミクス
(2) 非プロトン性イオン液体のリチウムイオン溶媒和とリチウムイオンイオニクス
(3) プロトン性イオン液体の液体構造とプロトニクス
(1)では、X線散乱実験を分子動力学シミュレーションにより解析する手法を開発し、種々のイオン液体の液体構造解析を行った。また、Lopes(ポルトガル)とPauda(フランス)らと共同でピロリジニウム系イオン液体の研究を行い、新たな陰イオンの力場を開発した。(2)では、Raman分光およびDFT計算から、リチウムイオンを含む一連のアルカリ金属イオンの溶媒和構造を解明した。また、関(電中研)と早水(早水)らと共同で低粘性イオン液体中のリチウムイオンのイオン伝導度や粘度、自己拡散係数を決定し、リチウムイオンの溶媒和構造とダイナミクスの相関を明らかにした。 (3)では、種々のプロトン性イオン液体の力場を新たに開発し、実験および理論の両面から液体構造を原子レベルで解明することに成功した。
本研究の特筆すべき成果は、イオン液体に特異的で最も最も注目されているナノ相分離液体構造を分子レベルで明らかにしたものである。従来知られている非プロトン性イオン液体に比べ、ナノ相分離構造形成がより促進されていることを見出した。シミュレーション解析を行ったところ、イオン液体の持つ自己疎溶媒的な性質に基づくことを明らかにした。

  • Research Products

    (37 results)

All 2009 2008 2007 Other

All Journal Article (24 results) Presentation (13 results)

  • [Journal Article]2009

    • Author(s)
      K. Fujii, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      Chem. Lett. 38

      Pages: 340-341

  • [Journal Article]2009

    • Author(s)
      Y. Umebayashi, K. Fujii, H.-C. Chang et.al.
    • Journal Title

      J. Chem. Phys. 130

      Pages: 124503-1 - 124503-6

  • [Journal Article]2009

    • Author(s)
      Y. Umebayashi, K. Fujii, S. Seki, J. N. C. et.al. Lopes, A. A. H. Padua
    • Journal Title

      J. Phys. Chem. B, 113

      Pages: 4338-4346

  • [Journal Article]2009

    • Author(s)
      S. Seki, K. Hayamizu, Y. Umebayashi, S. Tsuzuki et.al.
    • Journal Title

      Phys. Chem. Chem. Phys. 11

      Pages: 3509-351

  • [Journal Article]2009

    • Author(s)
      R. Kanzaki, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      J. Mol. Liq. 147

      Pages: 77-82

  • [Journal Article]2008

    • Author(s)
      J. N. C. Lopes, A. A. H. Padua, Y. Umebayashi et.al.
    • Journal Title

      J. Phys. Chem. B, 112

      Pages: 1465-1472

  • [Journal Article]2008

    • Author(s)
      K. Fujii, R. Kanzaki, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      J. Phys. Chem B, 112

      Pages: 4329-4336

  • [Journal Article]2008

    • Author(s)
      J. N. C. Lopes, A. A. H. Padua, Y. Umebayashi, K. Fujii et.al.
    • Journal Title

      J. Phys. Chem B, 112

      Pages: 9449-9455

  • [Journal Article]2008

    • Author(s)
      S. Fukuda, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      J. Mol. Liq. 143

      Pages: 2-7

  • [Journal Article]2008

    • Author(s)
      K. Fujii, S. Shiro, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      J. Mol. Liq. 143

      Pages: 64-69

  • [Journal Article]2008

    • Author(s)
      S. Seki, Y. Umebayashi, K. Hayamizu, S. Tsuzuki et.al.
    • Journal Title

      Chem. Commun.

      Pages: 5541-5543

  • [Journal Article]2008

    • Author(s)
      K. Fujii, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      Anal. Sci. 24

      Pages: 1377-1380

  • [Journal Article]2008

    • Author(s)
      Y. Umebayashi, K. Fujii, S. Ishiguro et.al.
    • Journal Title

      Anal. Sci. 24

      Pages: 1297-1304

  • [Journal Article]2008

    • Author(s)
      A. Shirai, K. Fujii, Y. Umebayashi, Y. Ikeda et.al.
    • Journal Title

      Anal. Sci. 24

      Pages: 1291-1296

  • [Journal Article]2008

    • Author(s)
      R. Kanzaki, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      Anal. Sci. 24

      Pages: 1347-1350

  • [Journal Article]2008

    • Author(s)
      Y Umebayashi, R. Kanzaki, S. Ishiguro et.al.
    • Journal Title

      J. Comp. Chem., Jpn 7

      Pages: 125-134

  • [Journal Article]2007

    • Author(s)
      R. Kanzaki, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      Chem. Lett. 36

      Pages: 684-685

  • [Journal Article]2007

    • Author(s)
      T. Sukizaki, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      Electrochem. 75

      Pages: 628-634

  • [Journal Article]2007

    • Author(s)
      K. Fujii, S. Seki, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      J. Phys. Chem. B. 111

      Pages: 12829-1283

  • [Journal Article]2007

    • Author(s)
      Y. Umebayashi, K. Fujii, R. Kanzaki, S. Ishiguro et.al.
    • Journal Title

      J. Phys. Chem. B. 111

      Pages: 13028-13032

  • [Journal Article]2007

    • Author(s)
      M. Asada, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      J. Raman Spectrosc. 38

      Pages: 417-426

  • [Journal Article]2007

    • Author(s)
      M. Asada, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      Anal. Sci. 23

      Pages: 835-840

  • [Journal Article]2007

    • Author(s)
      M. Asada, Y. Umebayashi, S. Ishiguro et.al.
    • Journal Title

      J. Mol. Liq. 136

      Pages: 138-146

  • [Journal Article]2007

    • Author(s)
      Y. Kameda, Y. Umebayashi, M. Takeuchi et.al.
    • Journal Title

      J. Phys. Chem. B, 111

      Pages: 6104-6109

  • [Presentation] Structural difference between imidazolium and pyrrolidinium ionic liquids revealed by X-ray diffraction and MD simulations2008

    • Author(s)
      Y. Umebayashi et.al.
    • Organizer
      Annual Meeting of European/Japanese Molecular Liquid Group 2008(EMLG/JMLG2008)
    • Place of Presentation
      Lisboa, Portugal
    • Year and Date
      20080831-0904
  • [Presentation] Liquid Structure of Low-viscosity Ionic Liquid, 1-Ethyl-3-methylimidazolium Bis(fluorosulfonyl) Amide2008

    • Author(s)
      K. Fujii, Y. Umebayashi et.al.
    • Organizer
      Annual Meeting of European/Japanese Molecular Liquid Group 2008(EMLG/JMLG2008)
    • Place of Presentation
      Lisboa, Portugal
    • Year and Date
      20080831-0904
  • [Presentation] The potential energy landscape of bis(fluorosulfonyl)amide2008

    • Author(s)
      K. Shimizu, Y. Umebayashi et.al.
    • Organizer
      Annual Meeting of European/Japanese Molecular Liquid Group 2008(EMLG/JMLG2008)
    • Place of Presentation
      Lisboa, Portugal
    • Year and Date
      20080831-0904
  • [Presentation] Relationships Between Molecular Structures and Electrochemical & Physicochemical Properties of Room-Temperature Ionic Liquids for High-Performance Lithium-Ion Secondary Batteries2008

    • Author(s)
      S. Seki Y. Umebayashi et.al.
    • Organizer
      Conference on Molten Salts and Ionic Liquids(EUCHEM 2008)
    • Place of Presentation
      Copenhagen, Denmark
    • Year and Date
      20080824-29
  • [Presentation] Anion dependence of 1-butyl-3-methylimidazolium conformational isomerism studied by Raman spectroscopy and MD simulations2008

    • Author(s)
      Y. Umebayashi et.al.
    • Organizer
      Conference on Molten Salts and Ionic Liquids(EUCHEM 2008)
    • Place of Presentation
      Copenhagen, Denmark
    • Year and Date
      20080824-29
  • [Presentation] Alkyl-Chain Dependence On Meso- And Micro-Scale Liquid Structure Of Imidazolium Based Room Temperature Ionic2008

    • Author(s)
      Liquid, K. Fujii, Y. Umebayashi et.al.
    • Organizer
      Conference on Molten Salts and Ionic Liquids(EUCHEM 2008)2008, Copenhagen, Denmark,
    • Place of Presentation
      Copenhagen, Denmark
    • Year and Date
      20080824-29
  • [Presentation] Molecular and liquid structures of 1-ethyl-3-methylimidazolium ionic liquids with various anons

    • Author(s)
      Y. Umebayashi et.al.
    • Organizer
      2nd International Congress on Ionic Liquids(COIL-2)
    • Place of Presentation
      Pacifico Yokohama, Yokohama, Japan
    • Year and Date
      00000805-10
  • [Presentation] Liquid structure and Ion solvation of Room Temperature Ionic Liquids

    • Author(s)
      Y. Umebayashi et.al.
    • Organizer
      international Symposium on Task-Specific Ionic Liquids
    • Place of Presentation
      Keio University, Japan
    • Year and Date
      00000803-04
  • [Presentation] Lithium Ion Solvation in Bis-(trifluoromethanesulfonyl)Imide type Room Temperature Ionic Liquids - DFT Calculations and Raman Spectroscopic Study -

    • Author(s)
      Y. Umebayashi et.al.
    • Organizer
      30th International Conference on Solution Chemistry
    • Place of Presentation
      Perth, Australia
    • Year and Date
      00000716-20
  • [Presentation] Solvation Structure of Li+ in Concentrated LiPF6-Propylene Carbonate Solutions-Time-of-Flight neutron diffraction and MD simulation-

    • Author(s)
      M. Takeuchi, Y. Umebayashi et.al.
    • Organizer
      30th International Conference on Solution Chemistry
    • Place of Presentation
      Perth, Australia
    • Year and Date
      00000716-20
  • [Presentation] Conformational Equilibrium of Bis(fluoroslufonyl)Imide Anion in Room-Temperature Ionic Liquid

    • Author(s)
      K. Fujii, Y. Umebayashi et.al.
    • Organizer
      30th International Conference on Solution Chemistry
    • Place of Presentation
      Perth, Australia
    • Year and Date
      00000716-20
  • [Presentation] Acidity and Basicity of Ionic Liquids of Onium Salt, Ryo Kanzaki

    • Author(s)
      Y. Umebayashi et.al.
    • Organizer
      30th International Conference on Solution Chemistry
    • Place of Presentation
      Perth, Australia
    • Year and Date
      00000716-20
  • [Presentation] On the Conformation of N-alkyl-N-methylpyrrolidinium Bis-(trifluoromethanesulfonyl)Imide Room Temperature Ionic Liquids-DFT Calculations and Raman Spectroscopic Study-

    • Author(s)
      Y. Umebayashi et.al.
    • Organizer
      30th International Conference on Solution Chemistry
    • Place of Presentation
      Perth, Australia
    • Year and Date
      00000716-20

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Published: 2010-06-10   Modified: 2016-04-21  

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