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Self-Organization of Bilayr-Forming Crystals

Research Project

Project/Area Number 04680053
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 結晶学
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

OKUYAMA Kenji  Tokyo University of Agriculture and Technology, Faculty of Technology, Professor, 工学部, 教授 (30038020)

Co-Investigator(Kenkyū-buntansha) NOGUCHI Keiichi  Tokyo University of Agriculture and Technology, Faculty of Technology, Research, 工学部, 助手 (00251588)
下村 政嗣  東京農工大学, 工学部, 助教授 (10136525)
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1993: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1992: ¥1,200,000 (Direct Cost: ¥1,200,000)
KeywordsBimolecular Layr / Self-Organization / Amphiphiles / Two-Dimensional Crystal / Cast Film / Single Crystal / X-ray Structure Analysis
Research Abstract

The purpose of this research project is to understand the fundamental aggregation principle when amphiphile molecules organize spontaneously in solution by themselves. To do this, the relationship between chemical structures and bilayr structures of azobenzene-containing amphiphiles C_nAzoC_mN^+Br^- were thoroughly investigated by the systematic change of alkyl chain lengths, m and n.
Following results were obtained. (1) For the compounds with m-n<greater than or equal>2, azobenzene chromophores are parallely arranged in a side by side fashion and amphiphile molecules from both sides of a bilayr interdigitate each other. This packing mode was called "H-aggregate" structure. Especially, the compounds with m-n=2 were crystallized and their structures were analyzed precisely. Although cast films of compounds with m-n<greater than or equal>2 showed H-aggregation structure, their stability decreased with the increase of the difference (m-n) from 2. (2) In the case of compounds with m=5, azob … More enzene chromophores are arranged in a head to tail fashion and amphiphile molecules tilt by about 30゚ to the bilayr surface. This packing mode was called "J-aggregate" structure. This group of compounds was easy to crystallize and every specimen was analyzed to get precise bilayr structures. (3) Every compound with different m and n showed a crystal-crystal transition at elevated temperature and their structures at higher temperature seemed to be similar to the J-aggregation structure, independent on their original aggregation structures. (4) From the above experimental results the following conclusions were obtained. The cross-section balance between the hydrophobic part and the hydrophilic part is most important as a driving force in the formation of bilayr structures. The bilayr structure was controlled by changing the number of carbon atoms in the tail (n) and the spacer (m) part. Moreover, in the case of H-aggregation state, small structural differences could be controlled by the odd or even Less

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] G.Xu: "Crystal Structures of Azobenzene-containing Amphiphiles,C_6AzoC_8N^+Br^- and C_8AzoC_<10>N^+Br^-" Mol.Cryst.Liq.Cryst.Sci.Technol.,Sect A. 213. 105-115 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] G.Xu: "Odd-even Effect on Bilayer Structures of C_nAzoC_mN^+Br^-" Mol.Cryst.Liq.Cryst.237. 207-215 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Nishimi: "Heat-Induced Structural Changes of Multibilayer Films of Benzylideneaniline-and Salichilideneaniline-Containing Ammonium Amphiphiles" Chem.letters. 1993. 295-298 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] G.Xu: "Molecular and Crystal Structure of Azobenzene-containing Amphiphile,C_3AzoC_5N^+Br^-" Bull.Chem.Soc.Jpn.66. 2182-2186 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 奥山 健二: "両親媒性化合物の作る規則構造と二次元結晶工学" 機能性材料ニュース. 23. 27-32 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 奥山 健二: "合成二分子膜の結晶構造" 日本結晶学会誌. 36. 14-18 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 奥山 健二: "合成脂質における結晶多形" 表面. (発表予定). (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 奥山 健二: "合成二分子膜の結晶構造「分子性結晶の反応」大橋裕二編" リアライズ社, 342 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Okuyama: "Formation of Bimolecular Films and Crystal Structure in "Reactivity in Molecular Crystals" Ed.Y.Ohashi" Kodansha VGH, 348 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Okuyama: "Structural Diversity of Bilayer-Forming Synthetic Lipids,C_nAzoC_mN^+Br^- in "New Functionality Materials" Ed.by T.Tsuruta,M.Seno and M.Doyama" Elsevier Science Publishers, 776 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] G.Xu, K.Okuyama and M.Shimomura: "Crystal Structures of H-aggregate of Azobenzene-containing Amphiphiles, C_6AzoC_8N^+Br^- and C_8AzoC_<10>N^+Br^-" Mol.Cryst.Liq.Cryst.Sci.Technol., Sect.A. 213. 105-115 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] G.Xu, K.Okuyama and M.Shimomura: "Odd-even Effect on Bilayr Structures of C_nAzoC_mN^+Br^-" Mol.Cryst.Liq.Cryst.237. 207-215 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Nishimi, Y.Ishikawa, T.Kunitake, M.Sekita, G.Xu and K.Okuyama: "Heat-Induced Structural Changes of Multibilayr Films of Benzylideneaniline- and Salichilideneaniline-Containing Ammonium Amphiphiles" Chem.Letters. 1993. 295-298 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] G.Xu, K.Okuyama and M.Shimomura: "Molecular and Crystal Structure of Azobenzene-containing Amphiphile, C_3AzoC_5N^+Br^-" Bull.Chem.Soc.Jpn.66. 2182-2186 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Okuyama: Reactivity in Molecular Crystals, Ed.Y.Ohashi, "Formation of Bimolecular Films and Crystal Structure". Kodansha VCH, 299-319 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Okuyama and M.Shimomura: New Functionality Materials, Ed.by T.Tsuruta, M.Seno and M.Doyama, "Structural Diversity of Bilayer-Forming Synthetic Lipids, C_nAzoC_mN^+Br^-". Elsevier Science Publishers B.V., 503-508 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] G.Xu: "Odd-even Effect on Bilayer Structures of C_nAzoC_mN^+Br^-" Mol.Cryst.Liq.Cryst.237. 207-215 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Nishimi: "Heat-induced Structural Changes of Multibilayer Films of Benzylideneaniline- and Salichilideneaniline-Containing Ammonium Amphiphiles" Chem.letters. 1993. 295-298 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] G.Xu: "Molecular and Crystal Structure of Azobenzene-containing Amphiphile,C_3AzoC_5N^+Br^-" Bull.Chem.Soc.Jpn.66. 2182-2186 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 奥山健二: "合成二分子膜の結晶構造" 日本結晶学会誌 印刷中.

    • Related Report
      1993 Annual Research Report
  • [Publications] 奥山健二: "二分子膜結晶におけるクリスタルエンジニアリング" 池谷財団研究成果報告書. 4. 288-289 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Okuyama: "New Functional Materials.Volume C ed.by T.Tsuruta,M.Seno and M.Doyama" Elsevier, 776 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Okuyama: "Crystal Structures of Hーaggregate of Azobenzeneーcontaining Amphiphiles,C_6AzoC_8N^+Br^- and C_8AzoC_<10>N^-Br^-" Mol.Cryst.Liq.Cryst.Sci.Technol.213. 105-115 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Okuyama: "HeatーInduced Structural Changes of Multibilayer Films of Benzylideneanilineー and SalichilideneanilineーContaining Ammonium Amphiphiles" Chem.Letters. 1993. 295-298 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Okuyama: "Oddーeven Effect on Bilayer Structures of C_nAzoC_mN^+Br^-" Mol.Cryst.Liq.Cryst.,. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Shimomura: "Molecular Design of Artificial Photosynthesis Based on Synthetic Bilayer Membranes" Trans.Mater.Res.Soc.Jap.10. 77-80 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Shimomura: "Effect of Thermal Treatment on Crystal Growth of the Surface Monolayer" Thin Solid Films. 210/211. 98-100 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Shimomura: "Electrochemistry of Viologenーcontaining LangmuirーBlodgett Film Prepared by Polyion Complex Technique" Thin Solid Films. 210/211. 375-377 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 奥山 健二: "合成二分子膜の結晶構造「分子性結晶の反応」大橋裕二編" リアライズ社, 342 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Okuyama: "Structural Diversity of BilayerーForming Synthetic Lipids,C _n AzoC_mN+Br-,in “New Functionality Materials"ed.by T.Tsuruta,M.Seno and M.Doyama" Elsevier Science Publishers B.V., (1993)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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