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Research on Anisotropic Arrangemetns of Molecules in the Clay Interlamellar

Research Project

Project/Area Number 01470067
Research Category

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

Allocation TypeSingle-year Grants
Research Field 無機工業化学
Research InstitutionTohoku University

Principal Investigator

ENDO Tadasi  Tohoku University, Faculty of Engineering Associate Professor, 工学部, 助教授 (30176797)

Co-Investigator(Kenkyū-buntansha) SATO Tsugio  Tohoku University Faculty of Engineering Associate Professor, 工学部, 助教授 (90091694)
SHIMADA Masahiko  Tohoku University, Faculty of Engineering Professor, 工学部, 教授 (80029701)
Project Period (FY) 1989 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥6,900,000 (Direct Cost: ¥6,900,000)
Fiscal Year 1990: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1989: ¥6,400,000 (Direct Cost: ¥6,400,000)
KeywordsDye / Clay mineral / Intercalation / Fluorescence material / Coumarine / Montmorillonite / Laser material / Rhodamine / レ-ザ材料
Research Abstract

Optical properties of xanthene and coumarine dyes incorporated into a swelling clay were studid. Preparation of the dye-clay composites were carried out as follows ; a swelling clay was added thorughly mixed into various solvents containing the corresponding quantity of dye. After about week, The resulting composites were quickly recovered by filtration and washed several times with solvent, than dried overight at 100^゚ in air.
The TG-DAT and the X-ray distraction data revealed that intercalted dye moleculres were immobilized and thermally stabilized over thleir melting temperatures. Also, the basal spacings of the clay were expanded up to the molecular size of dyes with slingt distortion of the layer structure on increasing the dye content.
All the dominant fluorescences were observed, which were identified as the pi*-pi transition related to mesomeric structure of dye chromophore. Its quantum efficiency is briefly discussed in connection with concentration quenching phenomena. As the quantity of intercalated coumarine 1 increased, a pronunced stepwise was observed in basal spacings from 13.0 A to 18.5 A. Such a geometrical change of the flat-shaped coumarine chromophore significantly influenced the fluorescence properties. Also, the red shift of the emission maximum was elucidated by the charge stability of N atoms in the coumarine chromophore.
When DMF (N, N-Dimethy Formamide) was used as solvent, tow fluorescence peaks were observed near 570 nm and 450 nm in the pyronine Y - montmorillonite system. This implied that the xanthene chromophore was partially decomposed to some coumarine-like structure by virtue of Na^+ ion incorp olated. DMF was also available fo intercalating Comarine 4 into tetrasilicic mica. It could be seen that the dye was readily solvated by DMF in the form of anionic struture. Its fluorescence spectra implied that an exciplex should be formed by the interaction between H^+ and 0^- ion of coumarine chromophore.

Report

(3 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] T.Endo,M.Shimada: ""Optical Properties of Dyes Incorporatod into Clay"" "CMPC International Symposium 1980",ed by T.Inui ELSEVIER,NY. (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 遠藤 忠、島田 昌彦: "有機無機複合化による光機能材料の創製" 有機合成化学. 49. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 島田 昌彦、遠藤 忠: "色素ー粘土ナノコンポジットの光学的性質" 秋田大学鉱山学部資源地学研究施設報告. 55. 43-53 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Tadashi Endo, Nobuyuki Nakada, Tsugio Sato and Masahiko Shimada,: "The Fluorescence Properties of Coumarine Dye intercalated in a Swelling Clay" J. Phys. Chem. Solids. 50. 133-137 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T. Endo and M. Shimada: "Optical Properties of Dyes Incorporated into Clay" "CMPC International Symposium 1980", ed. by T. Inui, ELSEVIER, NY. (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T. Endo and M. Shimada: "Creation of optically functional materials with organic and inorganic hybridization" J. Syn. Org. Ohem. Jpn.49, No5.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] M. Shimada and T. Endo: "Optical properties of dye-clay nano-compostes" Bull. Inst. Res. Geo. Mining Col. Akita Unive., (Akitadaigaku Kouzangakubu Sigentigaku Kenkyushisetu Houkoku). 55. 43-53 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T.Endo,M.Shimada: ""Optical Properties of Dyes Incorporated into Clay"" "CMPC International Symposium 1980",ed by T.Inui ELSEVIER,NY. (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 遠藤 忠、島田 昌彦: "有機無機複合化による光機能材料の創製" 有機合成化学. 49. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] 島田 昌彦、遠藤 忠: "色素ー粘土ナノコンポジットの光学的性質" 秋田大学鉱山学部資源地学研究施設報告. 55. 43-53 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Endo,N.Nakada,T.Sato and M.Shimada: "The Flourescence Properties of Coumarine Dye Intercalated in a Swelling Clay" Journol of physical Chemistry Solids. 50. 133-137 (1989)

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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