• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of the Organic Method for the Synthesis of Endohedral Fullerenes

Research Project

Project/Area Number 16350021
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Organic chemistry
Research InstitutionKyoto University

Principal Investigator

KOMATSU Koichi  Kyoto University, Institute for Chemical Research, Professor, 化学研究所, 教授 (70026243)

Co-Investigator(Kenkyū-buntansha) MURATA Yasujiro  Kyoto University, Institute for Chemical Research, Assistant Professor, 化学研究所, 助手 (40314273)
Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥14,500,000 (Direct Cost: ¥14,500,000)
Fiscal Year 2005: ¥6,600,000 (Direct Cost: ¥6,600,000)
Fiscal Year 2004: ¥7,900,000 (Direct Cost: ¥7,900,000)
KeywordsMolecular surgery / Fullerene / Synchrotron radiation X-ray crystallography / Hydrogen-Encapsulating Fullerene / Electrochemical Measurement / C70 / Helium / Cycloaddition / 水素吸蔵 / 超伝導 / 温度可変NMR / ドーピング / 水素分子 / 開口フラーレン / 熱反応 / 硫黄原子 / 光化学反応 / 質量分析 / 核磁気共鳴
Research Abstract

(1)The first endohedral fullerene encapsulating molecular hydrogen, H2@C60, was synthesized by so-called "molecular surgical approach". Thus, an 8-membered-ring orifice was formed on the surface of fullerene C60, via cycloaddition of a 1,2,4-triazine derivative to C60, followed by its enlargement into a 12-membered ring by oxidation with singlet oxygen. The opening was further enlarged into a 13-membered ring by insertion of sulfur into the rim of the orifice, and then high-pressure hydrogen was applied to afford an open-cage fullerene encapsulating H2 in 100%. The molecular hydrogen inside the cage was directly observed by means of MEM X-ray analysis using synchrotron radiation. Then the orifice was closed, while retaining the encapsulated hydrogen, by a four-step synthesis to afford H2@C60 in about 9% overall yield from the starting C60.
(2)The similar treatment of C70 afforded H2@C70 and also a small amount, of (H2)2@C70. The motion of the two hydrogen molecules in the open-cage [70]fullerene was observed by variable temperature 1H NMR measurement.
(3)The electronic interaction between the encapsulated hydrogen and the outer pi-system of fullerene cage was shown to be rather small by electronic measurement and also by 13C NMR spectroscopy.
(4)Hydrogen isotopes, i.e., H2, HD, and D2, were also encapsulated into the derivatives of open-cage fullerene. D2@C60 was synthesized and the difference between H2@C60 was clarified.
5) Helium was found to be encapsulated into the open-cage fullerene much more readily than hydrogen. [4] The closed-cage fullerene He@C60 was synthesized in the same way as that for H2@C60.

Report

(3 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • Research Products

    (28 results)

All 2006 2005 2004

All Journal Article (23 results) Book (5 results)

  • [Journal Article] Synthesis and Properties of Endohedral C_<60> Encapsulation Molecular Hydrogen2006

    • Author(s)
      M.Murata, K.Komatsu, et al.
    • Journal Title

      Journal of the American Chemical Society 128

      Pages: 8024-8033

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Synthesis and Properties of Endohedral C_<60> Encapsulating Molecular Hydrogen2006

    • Author(s)
      M.Murata, Y.Murata, K.Komatsu
    • Journal Title

      J.Am.Chem.Soc. 128

      Pages: 8024-8033

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Cryogenic NMR Spectroscopy of Endohedral Hydrogen-Fullerene Complexes.2006

    • Author(s)
      M.Carravetta
    • Journal Title

      Chem.Phys. (印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Encapsulation of Molecular Hydrogen in Fullerene C_<60> by Organic Synthesis2005

    • Author(s)
      K.Komatsu, M.Murata, et al.
    • Journal Title

      Science 307

      Pages: 238-240

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Floating Single Hydrogen Molecule in an Open-Cagge Fullerene2005

    • Author(s)
      H.Sawa, K.Komatsu, et al.
    • Journal Title

      Angewandte Chemie International Edition 44

      Pages: 1981-1983

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Organic and Organometallic Derivatives of Dihydrogen-Encapsulated2005

    • Author(s)
      Y.Matsuo, K.Komatsu, et al.
    • Journal Title

      Journal of the American Chemical Society 127

      Pages: 17148-17149

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Encapsulation of Molecular Hydrogen in Fullerene C_<60> by Organic Synthesis2005

    • Author(s)
      K.Komatsu, M.Murata, Y.Murata
    • Journal Title

      Science 307

      Pages: 238-240

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Floating Single Hydrogen Molecule in an Open-Cage Fullerene2005

    • Author(s)
      H.Sawa, Y.Wakabayashi, Y.Murata, M.Murata, K.Komatsu
    • Journal Title

      Angew.Chem.Int.Ed. 44

      Pages: 1981-1983

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Organic and Organometallic Derivatives of Dihydrogen-Encapsulated [60]Fullerene.2005

    • Author(s)
      Y.Matsuo, H.Isobe, T.Tanaka, Y.Murata, M.Murata, K.Komatsu, E.Nakamura
    • Journal Title

      J.Am.Chem.Soc. 127

      Pages: 17148-17149

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Encapsulation of Molecular Hydrogen in Fullerene C_<60> by Organic Synthesis.2005

    • Author(s)
      K.Komatsu
    • Journal Title

      Science 307

      Pages: 238-240

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Helium Entry and Escape through a Chemically Opened Window in a Fullerene.2005

    • Author(s)
      C.M.Stanisky
    • Journal Title

      J.Am.Chem.Soc. 127

      Pages: 299-302

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Floating Single Hydrogen Molecule in an Open-Cage Fullerene.2005

    • Author(s)
      H.Sawa
    • Journal Title

      Angew.Chem.Int.Ed. 44

      Pages: 1981-1983

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Inelastic Light Scattering of Hydrogen Containing Open-Cage Fullerene ATOCF.2005

    • Author(s)
      P.M.Rafailov
    • Journal Title

      Phys.Sts.Sol.(b) Rapid Res.Lett. 242

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Organic and Organometallic Derivatives of Dihydrogen-Encapsulated [60]Fullerene.2005

    • Author(s)
      Y.Matsuo
    • Journal Title

      J.Am.Chem.Soc. 127

      Pages: 17148-17149

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A New Route to an Endohedral Fullerene by way of σ-Framework Transformations.2005

    • Author(s)
      K.Komatsu
    • Journal Title

      Chem.Lett. 34

      Pages: 886-891

    • NAID

      10016468228

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Helium Entry and Escape through a Chemically Opened Window in a Fullerene2005

    • Author(s)
      C.M.Stanisky, K.Komatsu et al.
    • Journal Title

      J.Am.Chem.Soc. 127巻

      Pages: 299-302

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Encapsulation of Molecular Hydrogen in Fullerene C_<60> by Organic Synthesis2005

    • Author(s)
      K.Komatsu, M.Murata et al.
    • Journal Title

      Science 307巻

      Pages: 238-240

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Solid State NMR of Molecular Hydrogen Trapped Inside an Open-Cage Fullerene2004

    • Author(s)
      M.carravetta, K.Komatsu, et al.
    • Journal Title

      Journal of the American Chemical Society 126

      Pages: 4092-4093

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Generation of Fullerenyl Cation (EtO)_2P^+(OH)CH_2-C60^+ from R-C_<60>-H from RC_<60>-C_<60>-R (R=CH_2P(O)(OEt)_2)2004

    • Author(s)
      Y.Murata, K.Komatsu, et al.
    • Journal Title

      Journal of the American Chemical Society 126

      Pages: 8874-8875

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Solid State NMR of Molecular Hydrogen Trapped Inside an Open-Cage Fullerene2004

    • Author(s)
      M.Carravetta, Y.Murata, M.Murata, I.Heinmaa, R.Stern, A.Samoson, Y.Rubin, K.Komatsu, M.H.Levitt
    • Journal Title

      J.Am.Chem.Soc. 126

      Pages: 4092-4093

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Generation of Fullerenyl Cation (EtO)_2P^+(OH)CH_2-C_<60>- from R-C_<60>-H and from RC_<60>-C_<60>-R (R=CH_2P(O)(OEt)_2)2004

    • Author(s)
      Y.Murata, F.Cheng, T.Kitagawa, K.Komatsu
    • Journal Title

      J.Am.Chem.Soc. 126

      Pages: 8874-8875

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Solid State NMR of Molecular Hydrogen Trapped Inside an Open-Cage Fullerene2004

    • Author(s)
      M.Carravetta, K.Komatsu et al.
    • Journal Title

      J.Am.Chem.Soc. 126巻

      Pages: 4092-4093

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Generation of Fullerenyl Cation (EtO)_2P^+(OH)CH_2-C60^+ from R-C_<60>-H and from RC_<60>-C_<60>-R (R=CH_2P(O)(OEt)_2)2004

    • Author(s)
      Y.Murata, K.Komatsu et al.
    • Journal Title

      J.Am.Chem.Soc. 126巻

      Pages: 8874-8875

    • Related Report
      2004 Annual Research Report
  • [Book] Top.Curr.Chem2006

    • Author(s)
      T.Kitagawa
    • Publisher
      Springer
    • Related Report
      2005 Annual Research Report
  • [Book] 化学フロンティア15「ナノカーボン」2006

    • Author(s)
      小松紘一
    • Publisher
      化学同人(印刷中)
    • Related Report
      2005 Annual Research Report
  • [Book] 化学フロンティア15「ナノカーボンの新展開 : 世界に挑む日本の先端技術」2005

    • Author(s)
      小松紘一
    • Total Pages
      10
    • Publisher
      化学同人
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Book] 水素利用技術集成、Vol..22005

    • Author(s)
      小松紘一
    • Publisher
      エヌ・ティー・エス
    • Related Report
      2005 Annual Research Report
  • [Book] Electronic Properties of Novel Nanostructures, Vol.XIX2005

    • Author(s)
      K.Komatsu
    • Publisher
      American Institute of Physics
    • Related Report
      2005 Annual Research Report

URL: 

Published: 2004-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi