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Creation of conductive supramolecular frameworks tailored by anisotropic intermolecular interactions and development of multi-functional materials

Research Project

Project/Area Number 11640575
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 機能・物性・材料
Research InstitutionTHE INSTITUTE OF PHYSICAL AND CHEMICAL RESEARCH (RIKEN) (2000-2001)
The University of Tokyo (1999)

Principal Investigator

IMAKUBO Tatsuro  RIKEN, Research Scientist, 分子物性化学研究室, 研究員 (60291332)

Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2001: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2000: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1999: ¥1,500,000 (Direct Cost: ¥1,500,000)
KeywordsIodine / Supramolecule / Superconductrvity / Organic conductor / Intermolecular / TTF / TSeF / Uniaxial strain / テトラチアフルバレン / 分子性導体 / 結晶構造制御 / ピラジン / 結晶設計
Research Abstract

It is well known that the variety of crystal and electronic structures in organic conductors depends not only on the structure of an individual molecule but also on the molecular arrangement in the crystal. We have proposed the introduction of strong and directional I・・・N type intermolecular interactions ("iodine bond") to organic conductors for the sake of crystal engineering.
i) The known method for the syntheses of TTF-vinylogues based on the Wittig-type reaction includes multi-step syntheses of the starting materials. We have developed a new and simple method for the synthesis of iodine-bonded TTF-vinylogues. This direct coupling reaction of thione and aldehyde proceeds smoothly regardless of the substituent. We have obtained a series of novel iodine-bonded TTF-vinylogues.
ii) Thermal behavior of a unique hexagonal system based on the iodine-bonded diselenedithiafulvalene "DIPS" has been studied. The channel structure is similar to those of the inorganic "zeolite" systems and it would be promising to introduce a variety of guest molecules to obtain multi-functional materials.
iii) We have prepared a novel supramoleeular organic conductor θ-(DIETS)2[Au(CN)_4] and measured the temperature dependence of the electrical resistivity under the uniaxial strain. Superconducting transition was observed around 10 kbar and the onset temperature of the superconductivity has reached 8 K. It is the highest record among the known superconductors based on unsymmetrical organic π-donors. Furthermore, the effect of the uniaxial strain showed large anisotropy as expected.
iv) We have prepared iodine-bonded tetraselenafulvalene (TSeF) derivatives without the use of highly toxic reagents H_2Se and CSe_2. A new organic conductor (DIETSe)>2AuCl_2 is metallic down to 4.2 K and its room temperature conductivity is up to 700 Scm<-1>. X-ray structure analysis has revealed that the unique supramolecular structure has been developed by the I・・・CI and l・・・Au strong iodine bond.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] N.Hanasaki, H.Tajima, R.Kato, T.Imakubo, H.Sawa: "Hybrid-dimensional system in M(dmit)_2 salt"Synthetic Metals. 103. 2086 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 今久保達郎: "含ヨウ素TTF誘導体を用いた分子性導体の結晶設計"ファインケミカル. 29・20. 27-33 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tatsuro Imakubo, Tomonori Iijima, Keiji Kobayashi, Reizo Kato: "A new synthetic route to TTF-vinylogues"Synthetic Metals. 120. 899-900 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tatsuro Imakubo, Atsushi Miyake, Hiroshi Sawa, Reizo Kato: "Synthesis and physical properties of(DIETS)_2[Au(CN)_4] : A new θ-salt with a unique donor... anion network"Synthetic Metals. 120. 927-928 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tatsuro Imakubo, Naoya Tajima, Masafumi Tamura, Reizo Kato, Yutaka Nishio, Koji Kajta: "A Supramolecular Superconductor θ-(DIETS)_2[Au(CN)_4]"Journal of Materials Chemistry. 12・2. 159-161 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tatsuro Imakubo, Naoya Tajima, Masafumi Tamura, Reizo Kato, Yutaka Nishio, Koji Kajta: "Supramolecular organic conductor θ-(DIETS)_2[Au(CN)_4] : unique structure and superconductivity under uniaxial strain (DIETS=diiodo(ethyleneditiho) diselenadithiafulvalene)"Synthetic Metals. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Reizo Kato, Tatsuro Imakubo, Hiroshi M.Yamamoto, Ryoko Maeda, Masahiro Fujiwara, Jun-ichi Yamaura, Hiroshi Sawa: "An application of supramolecular chemistry to molecular conductors"Molecular Crystals and. Liquid Crystals. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Hanasaki, H. Tajima, R. Kato, T. Imakubo, and H. SawaAHybrid-dimensional system in M(dmit)2 salt: "Hybrid-dimensional system in M(dmit)2 salt"Synthetic Metals. 103. 2086 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tatsuro Imakubo: "Crystal design of molecular conductors based on iodine-bonded TTFs"Fine chemical. 29(20). 27-33 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tatsuro Imakubo, Tomonori lijima, Keiji Kobayashi and Reizo Kato: "A new synthetic route to TTF-vinylogues"Synthetic Metals. 120. 899-900 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tatsuro Atsushi Miyake, Hiroshi Sawa and Reizo Kato: "Synthesis and physical properties of (DIETS)2[Au(CN)4] : A new θ-salt with a unique donor…anion network"Synthetic Metals. 120. 927-928 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tatsuro Imakubo, Naoya Tajima, Masafumi Tamura, Reizo Kato, Yutaka Nishio, Koji Kajta: "A Supramolecular Superconductor θ-(DIETS)2[Au(CN)4]"Journal of Materials Chemistry. 12(2). 159-161 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tatsuro Imakubo, Naoya Tajima, Masafumi Tamura, Reizo Kato, Yutaka Nishio, Koji Kajta: "Supramolecular organic conductor θ-(DIETS)2[Au(CN)4] : unique structure and superconductivity under uniaxial strain (DIETS = diiodo(ethyleneditiho)diselenadithiafulvalene)"Synthetic Metals. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Reizo Kato, Tatsuro Imakubo, Hiroshi M.Yamamoto, Ryoko Maeda, Masahiro Fujiwara, Jun-ichi Yamaura, Hiroshi Sawa: "An application of supramolecular chemistry to molecular conductors"Molecular Crystals and Liquid Crystals. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tatsuro Imakubo, Tomonori Iijima, keiji Kobayashi, Reizo Kato: "A new synthetic route to TTF-vinylogues"Synthetic Metals. 120. 899-900 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tatsuro Imakubo, Atsushi Miyake, Hiroshi Sawa, Reizo Kato: "Synthesis and physical properties of(DIETS)_2[Au(CN)_4] : A new θ-salt with a unique donor…anion network"Synthetic Metals. 120. 927-928 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tatsuro Imakubo, Naoya Tajima, Masafumi Tamura, Reizo Kato, Yutaka Nishio, Koji Kaita: "A Supramolecular Superconductor θ-(DIETS)_2[Au(CN)_4]"Journal of Materials Chemistry. 12・2. 159-161 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tatsuro Imakubo, Naoya Tajima, Masafumi Tamura, Reizo Kato, Yutaka Nishio, Koji Kaita: "Supramolecular organic conductor θ-(DIETPS)_2[Au(CN)_4] : unique structure and superconductivity under uniaxial strain(DIETS=diiodo(ethyleneditibo)diselenadithiafulvalene)"Synthetic Metals. (印刷中).

    • Related Report
      2001 Annual Research Report
  • [Publications] Reizo Kato, Tatsuro Imakubo, Hiroshi M., Yamamoto, Ryoko Maeda, Masahiro Fujiwara, Jun-ichi Yamaura, Hiroshi Sawa: "An application of supramolecular chemistry to molecular conductors"Molecular Crystals and Liquid Crystals. (印刷中).

    • Related Report
      2001 Annual Research Report
  • [Publications] 今久保達郎: "含ヨウ素TTF誘導体を用いた分子性導体の結晶設計"ファインケミカル. 29・20. 27-33 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Noriaki Hanasaki et al.: "Hybrid-dimensional system in M(dmit)_2 salt"Synthetic Metals. 103. 2086 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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