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Construction of supramolecular system toward the investigation of biological events

Research Project

Project/Area Number 10304053
Research Category

Grant-in-Aid for Scientific Research (A).

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

Principal Investigator

FUKAZAWA Yoshimasa  Hiroshima Univ., Graduate School of Science, Professor, 大学院・理学研究科, 教授 (50004502)

Co-Investigator(Kenkyū-buntansha) IWAMOTO Hajime  Hiroshima Univ., Graduate School of Science, Asistant, 大学院・理学研究科, 助手 (80304393)
HAINO Takeharu  Hiroshima Univ., Graduate School of Science, Asist.Professor, 大学院・理学研究科, 助教授 (80253053)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥37,400,000 (Direct Cost: ¥37,400,000)
Fiscal Year 2000: ¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 1999: ¥9,400,000 (Direct Cost: ¥9,400,000)
Fiscal Year 1998: ¥23,700,000 (Direct Cost: ¥23,700,000)
Keywordsmolecular recognition / host-guest chemistry / fullerene supramolecules / calixarenes / self-assembling host / molecular tweezers / chemical shift simulation / molecular dynamics / 酸化触媒モデル / ポルフィリン / カリックスアレン / C-Hπ相互作用 / 自己会合型ホスト / フラーレン / 超分子錯体 / 構造水 / カリックス[5]アレン / 電荷移動相互作用 / 分子サイズ識別 / 脱溶媒和 / 自己会合 / アロステリック特性
Research Abstract

Molecular recognition based on the formation of host-guest complex is a fundamental chemical process. Enzymes, antibodies, receptors, and carriers all use the molecular recognition events. For the purpose of understanding and mimicking molecular recognition processes, host-guest chemistry playing a very important roll and simplified artificial receptors are useful to understand the nature of the binding on a molecular level. We have succeeded in synthesizing several artificial receptors for binding apolar organic guests such as fullerenes and several heterocycles. Calixarenes were employed as the cavity carrying unit. It was found that the calix[5]arene is a useful receptor for fullerene and connecting the two units of the receptor by covalent or non-covalent bonds resulted in the strong binding of the fullerenes. Both the uptake and release of the fullerene can be easily controlled with or without the protic acid in organic media using a self-assembling calixarene host having urea functionality. Several calixarene hosts having polar functionalities were also synthesized to examine the cooperative role of the hydrogen bonding and other non-directional forces (van del Waals and CH-π interactions and so on) for the effective binding of the polar guest such as cyclic ureas and diketopiperazines. The freedom of movement of the bound guests was analyzed by both the molecular dynamic simulation and nmr chemical shift simulation procedure. Molecular tweezers type hosts were also synthesized in order to study the effective binding the planar guests with charge transfer type interaction in organic media. Both donor-acceptor-donor and donor-acceptor-acceptor sandwich type layered arrangements were observed in the supramolecular complexes.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] Y.Fukazawa: "Layered donor-acceptor-acceptor arrangement in complex of molecular tweezers based on dioxa [2.2] orthocyclophane,"Tetrahedron Letters. 41・4. 477-480 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Fukazawa: "Thermodynamic study on supramolecular complex formation of fullerene with calix [5] arenes in organic solvents"Tetrahedron Letters. 41・4. 493-497 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Fukazawa: "Flexible Molecular Tweezers Based on a Dioxa [2.2] orthocyclophane Linked with Weak Electron Acceptor"Tetrahedron Letters. 41・21. 4139-4142 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Fukazawa: "Conformational analysis by chemical shift simulation : structure of 1,4,11,14-tetraoxa [4.4] metacyclophane"Tetrahedron Letters. 42・1. 49-51 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Fukazawa: "Intramolecular Complex Formation Between Flexible Molecular Tweezers and Weak Electron Acceptor"Heterocycles. 51・1. 849-864 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Fukazawa: "Estimation of Magnetic Anisotropy in Polycyclic Aromatics"Tetrahedron Letters. 42・8. 1551-1553 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Fukazawa: "Layered donor-acceptor-acceptor arrangement in complex of molecular tweezers based on dioxa[2.2]orthocyclophane"Tetrahedron Letters. 41/4. 477-480 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Fukazawa: "Thermodynamic study on supramolecular complex formation of fullerene with calix[5]arenes in organic solvents"Tetrahedron Letters. 41/4. 493-497 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Fukazawa: "Flexible Molecular Tweezers Based on a Dioxa[2.2]orthocyclophane Linked with Weak Electron Acceptor"Tetrahedron Letters. 41/21. 4139-4142 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Fukazawa: "Conformational analysis by chemical shift simulation : structure of 1, 4, 11, 14-tetraoxa[4.4]metacyclophane"Tetrahedron Letters. 42/1. 49-51 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Fukazawa: "Intramolecular Complex Formation Between Flexible Molecular Tweezers and Weak Electron Acceptor"Heterocycles. 51/1. 849-864 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Fukazawa: "Estimation of Magnetic Anisotropy in Polycyclic Aromatics"Tetrahedron Letters. 42/8. 1551-1553 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Fukazawa: "Layered donor-acceptor-acceptor arrangement in complex of molecular tweezers based on dioxa [2.2] orthocyclophane,"Tetrahedron Letters. 41.4. 477-480 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y.Fukazawa: "Thermodynamic study on supramolecular complex formation of fullerene with calix [5] arenes in organic solvents"Tetrahedron Letters. 41・4. 493-497 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y.Fukazawa: "Flexible Molecular Tweezers Based on a Dioxa [2.2] orthocyclophane Linked with Weak Electron Acceptor"Tetrahedron Letters. 41・21. 4139-4142 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y.Fukazawa: "Conformational analysis by chemical shift simulation : structure of 1,4,11,14-tetraoxa [4.4] metacyclophane"Tetrahedron Letters. 42・1. 49-51 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y.Fukazawa: "Intramolecular Complex Formation Between Flexible Molecular Tweezers and Weak Electron Acceptor"Heterocycles. 51・1. 849-864 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y.Fukazawa: "Estimation of Magnetic Anisotropy in Polycyclic Aromatics"Tetrahedron Letters. 42・8. 1551-1553 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Yoshimasa Fukazawa: "A Self-Assembling Molecular Containner for Fullerenes"Tetrahedron Letters. vol.40. 2781-2784 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Yoshimasa Fukazawa: "Is the Magnetic Shielding Effect of a Lactone Group the Simple Sum of Those of a Ketone and Ether?"Tetrahedron Letters. vol.40. 3591-3594 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Yoshimasa Fukazawa: "Molecular Tweezers Based on Dioxa[2.2]orthocyclophane Skeleton"Tetrahedron Letters. vol.40. 5545-5548 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Yoshimasa Fukazawa: "Synthesis of a Calix[5]arene Receptor Having Tow Benzoic Acid Moieties"Tetrahedron Letters. vol.40. 6301-6304 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Yoshimasa Fukazawa: "Layered donor-acceptor-acceptor arrangement in complex of molecular tweezer based dioxa[2.2]orthocyclophane"Tetrahedron Letters. vol.41. 477-480 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Yoshimasa Fukazawa: "Thermodynamic study on supramolecular complex formation of fullerene with calix[5]arenes in organic solvents"Tetrahedron Letters. vol.41. 493-497 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Yoshimasa Fukazawa: "Conformation Analysis of Dioxa[2.2]orthocyclophanes" TETRAHEDRON. Vol.54. 13495-13504 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yoshimasa Fukazawa: "Synthesis and Binding Behavior of an Artificial Receptor Based on Upper Rim"Functionalized Calix[5]arene" TETRAHEDRON. Vol.54. 12185-12196 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yoshimasa Fukazawa: "Allosteric Receptor Based on Monodexycalix[4]arene Crown Ether" TETRAHEDRON LETTERS. Vol.39. 8133-8136 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yoshimasa Fukazawa: "Fullerenes Enclosed in Bridged Calix[5]arene" ANGEWANDTE CHEMIE INTERNATIONAl EDITION. Vol.37 No.7. 1044-1046 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yoshimasa Fukazawa: "An Artificial Receptor Based on Monodeoxy Calix[4]arene" SYNLETT. September(9月号). 1016-1018 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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