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Color-Switching Properties and Lithium Selective Transport. Abilities of Heterocyclic Macrocycles

Research Project

Project/Area Number 13650916
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Synthetic chemistry
Research InstitutionOchanomizu University

Principal Investigator

OGAWA Shojiro  Ochanomizu University, Graduate School of Humanities and Sciences, Professor, 大学院・人間文化研究所, 教授 (20013196)

Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2002: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2001: ¥2,200,000 (Direct Cost: ¥2,200,000)
Keywordsmacrocycle / color-switching / liquid membrane transport / lithium / 1,10-phenanthroline / カラースウィッチング / 分子軌道 / 互変異性 / 海水
Research Abstract

The solvent control of conformation of macrocycle discovered in this study would be able to lead to a significant boost in the development of switching molecules. New finding about solvent effect of metal free macrocycle may open a route to novel switching system, which is the key system used in molecular electronics.
New bipyridine macrocycle prepared by us has a pronounced feature, which is the unsymmetrical and distorted structure of macrocycle skeleton. Another noteworthy characteristic in the properties of this macrocycle is that a strong intramolecular hydrogen bond exists in the ring of metal free macrocycle. As a result, a new finding that the solvent has a big effect on the ^1H-NMR spectrum of this macrocycle was discovered. This phenomenon observed for metal free macrocycle is due to the variation of the conformation of macrocycle, which is affected by the intramolecular hydrogen bond.
A carbonyl armed phenanthroline featuring high selectivity for lithium ion complexation was newly synthesized by using 2,9-diamino-1, 10-phenanthroline, which was developed by us. As this new molecule has both oxygen and nitrogen atoms as the coordination sites, this complexation is new type of coordination for lithium ions, terming NN00 coordination. This coordination structure can be achieved with resultant enhancement of selective lithium ion binding. When this molecule was used as a carrier in liquid membrane system, lithium ion was transported efficiently through dichloromethane membranes. In particular, it is noticeable that LiCl is transported by this membrane system, thereby meeting the practical uses. Thus, this approach has been successful in the development of LiCl selective carriers.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] A.Furuhama, K.Takano, S.Ogawa, S.Tsuchiya: "Theoretical Study of a Conformational Change Occurring with Lithium complexation to a Tetra-aza Macrocycle Containing 2,2-Bipyridine"Bull. Chem. Soc. Jap.. 74. 1241-1249 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Tsuchiya, Y.Nakatani, R.Ibrahim, S.Ogawa: "Highly Efficient Separation of Lithium Chloride from Seawater"J. Am. Chem. Soc. 124. 4936-4937 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] A.Furuhama, K.Takano, S.Ogawa, S.Tsuchiya: "A Theoretical Study of Tautomerism in Hexa-aza Macrocycles Containing 2,2-Bipyridine and 1,10-Phenanthroline and Ability to Form Lithium Complexes"J. Molecular Structure(Theochem). 620. 49-63 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] A. Furuhama, K. Takano, S. Ogawa, S. Tsuchiya: "Theoretical Study of a Conformational Change Occurring with Lithium Complexation to a Tetra-aza Macrocycle Containing 2,2'- Bipyridines"Bull. Chem. Soc. Jap.. 74. 1241-1249 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S. Tsuchiya, Y. Nakatani, R. Ibrahim, S. Ogawa: "Highly Efficient Separation of Lithium Chloride from Seawater"J. Am. Chem. Soc.. 124 (No.18). 4936-4937 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] A. Furuhama, K. Takano, S. Ogawa, S. Tsuchiya: "A theoretical study of tautomerism in hexa-aza macrocycles containing 2, 2'-bipyridine and 1,10-phenanthroline and ability to form lithium complexes"J. Molecular Structure (Theochem). 620. 49-63 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S.Tsuchiya, Y.Nakatani, R.Ibrahim, S.Ogawa: "Highly Efficient Separation of Lithium Chloride from Seawater"Journal of the American Chemical Society. 124、No.18. 4936-4937 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] A.Furuhama, K.Takano, S.Ogawa, S.Tsuchiya: "A theoretical study of tautomerism in hexa-aza macrocycles containing 2,2'-Bipyridine and 1,10-phenanthroline and their abirity to form lithium complex"Journal of Molecular Structure(Theochem). 620. 49-63 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] A.Furuhama, K.Takano, S.Ogawa, S.Tsuchiya: "Theoretical Study of a Conformational Change Occurring with Lithium Complexation to a Tetra-aza Macrocycle Containing 2,2'-Bipyridines"Bulletin of the Chemical Society of Japan. 74, No.7. 1241-1249 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] R.Ibrahim, S.Tsuchiya, S.Ogawa: "A Color-Switching Molecule : specific Properties of New Tetrauza Macrocycle Zinc Complex with a Facilely chogen Atom"J. Am. Chem. Soc.. 122(49). 12174-12185 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Tsuchiya, Y.Nakatani, R.Ibrahim, S.Ogawa: "Highly Efficient Separation of Lithium chloride from seawater"J. Am. Chem. Soc.. (予定). (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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