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1998 Fiscal Year Final Research Report Summary

Development of Molecular Recognition Reaction at the Interface and Analysis of Recognition Functions by Laser Spectroscopy

Research Project

Project/Area Number 09440249
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 分離・精製・検出法
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

TERAMAE Norio  Tohoku University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (70114569)

Co-Investigator(Kenkyū-buntansha) NISHIZAWA Seiichi  Tohoku University, Graduate School of Science, Assistant, 大学院・理学研究科, 助手 (40281969)
UCHIDA Tatsuya  Tohoku University, Graduate School of Science, Assistant, 大学院・理学研究科, 助手 (30261548)
HAYASHITA Takashi  Tohoku University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (70183564)
Project Period (FY) 1997 – 1998
KeywordsMolecular Recognition / Hydrogen Bonding / Thiourea / Reactions at the Interface / Laser Spectroscopy / Second Harmonic Generation / Ion Transfer at the Interface
Research Abstract

As to molecular recognitions at the interface, hydrogen bonding receptors were synthesized and their functions were evaluated, paying attentions to recognition functions used in living systems. Reactivities and adsorption behaviors of molecules at the interface were analyzed by resonant second harmonic(RSH) spectroscopy, time resolved total internal reflection fluorescence spectroscopy(TIRF), electrochemical STM, QCM, dynamic interfacial tensiometry, and liquid droplet polarographic measurements.
As a new generation of fluoroionophores based on the photoinduced electron transfer process, novel pyrene-based receptors which are donor-spacer-acceptor systems were developed. A fluorophore as an electron acceptor, pyrene, was linked to an ion receptor as an electron donor by a polymethylene chain. In these systems, a formation of an intramolecular exciplex between the excited pyrene and the ion receptor is controlled by ion complexation, resulting in the spectral responses to allow analytica … More lly useful ratiometric measurements, that is, a ratio of the exciplex emissin to the monomer emission can be used to cancel out the environmental effect. In a pyrene/thiourea system, where the thiourea group functions as an anion binding site, the maxima of the exciplex emission enhanced by anion binding were foamed to be clearly anion dependent. This dependency is another advantage of the exploitation of the exciplex emission for ion sensing. In a pyrene/amidobenzo-15-crown-5 system, where the amidobenzo-15-crown-5 group functions as an cation binding site, the fluorescence maximum of the exciplex emission was red-shifted with increasing solvent polarity, indicating the charge-transfer nature of the emission. The intensity of the emission band decreased by adding alkali metal ions. This decrease reflects the stabilities of the 1 : 1 complex.
As for molecular recognitions at liquid-Liquid interfaces, complexation reactions of hydrogen-bonding reveptors with anions were examined by electrolyte ascending electrode polarography, and the facilitated aniontransfer across the interface was observed for the first time. It was found that sulfate was remarkably facilitated regardless its hydrophilic nature.
As mentioned above, several ionophores were developed and examined their functions. Some of the ionophores were demonstrated to recognize anions effectively through hydrogen-bond at liwuid-liquid interfaces. Less

  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] K.Bessyo: "Intramolecular Excimer Formation Dynamics of 1,3-bis(1-Pyrenyl)propane Incorporated into the Surfactant Assembly Formed at the Silica-water Interface" J.Mol.Cryst.Liq.Cryst.315. 23-28 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Ishioka: "Photosensitive Oligomer Formation and Laser-induced Polymerization of Aniline on a Gold Electrode Surface : A Surface-Enhanced Raman Scattering" Chem.Lett.,. (8). 765-766 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Ishioka: "Development of Time-resolved Surface-enhanced Raman Scattering Spectroscopy using a step scan Fourier Transform Spectrometer" Chem.Lett.,. (8). 771-772 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Shioya: "Complexation Kinetics of 5-Alkyloxymethyl-8-quinolinols at Liquid-Liquid Interfaces as Studied by Dynanic Interfacial Tensiometry" Langmuir. 14(16). 4552-4558 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Shioya: "Anion Recognition at the Liquid-Liquid Interface. Sulfate Transfer across the 1,2-Dichlorocthanc-Water Interface Facilitated by IIydrogen-Bonding Ionophores" J.Am.Chem.Soc.120(44). 11534-11535 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Nishizawa: "Anion sensing by a donor-spacer-acceptor system : An intramolecular exciplex emission enhanced hydrogen bond-mediated complexation" J.Chem.Soc., Perkin Trans. 2. (11). 2325-2327 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Bessyo, M.Kanda, Y.Harada, T.Uchida, N.Teramae: "Intramolecular Excimer Formation Dynamics of 1,3-bis (1-Pyrenyl) propane Incorporated into the Surfactant Assembly Formed at the Silica-water Interface" J.Mol.Cryst.Liq.Cryst.315. 23-28 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hayashita, N.Teramae, T.Kuboyama, S.Nakamura, H.Yamamoto, and H.Nakamura: "Chromoionophores Based on Crown Ethers and Related Structures for Alkali Metal Ion Sensing in Aqueous Media" J.Inclusion Phenom.Mol.Recog.Chem.32. 251-265 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Nishizawa, R.Kato, T.Hayashita, N.Teranae: "Hydrogen Bond-meidated Anion Sensing by a Thiourea Based Chromoionophore" Anal.Sci.14, (6). 595-597 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Ishioka, T.Uchida, N.Teramae: "Photosensitive Oligomer Formation and Laser-induced Polymerization of Aniline on a Gold Electrode Surface : A Surface-Enhanced Raman Scattering Study" Chem.Lett.(8). 765-766 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Ishioka, T.Uchida, N.Teramae: "Development of Time-resolved Surface-enhanced Raman Scattering Spectroscopy using a step scan Fourier Transform Spectrometer" Chem.Lett.(8). 771-772 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Shioya, S.Nishizawa, N.Teramae: "Complexation Kinetics of 5-Alkyloxymethyl-8-quinolinols at Liquid-Liquid Interfaces as Studied by Dynamic Interfacial Tensiometry" Langmuir. 14, (16). 4552-4558 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Shioya, S.Nishizawa, N.Teramae: "Anion Recognition at the Liquid-Liquid Interface. Sulfate Transfer across the 1,2-Dichloro-ethane-Water Interface Facilitated by Hydrogen-Bonding Ionophores" J.Am.Chem.Soc.120, (44). 11534-11535 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Nishizawa, H.Kaneda, T.Uchida, N.Teramae: "Anion sensing by a donor-spacer-acceptor system : An intramolecular exciplex emission enhanced by Hydrogen bond-mediated complexation" J.Chem.soc., Perkin Trans.2, (11). 2325-2327 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Nishizawa, M.Watanabe, T.Uchida, N.Teramae: "Ratiometric Fluorescent Sensing of Alkali Metal Ions Based on the control of the Intramolecular Exciplex Formation" J.Chem.Soc., Perkin Trans.2, (2). 141-143 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Shioya, S.Nishizawa, N.Teramae: "Complexation Kinetics of 8-quinolinol derivatives at the 1,2-Dichloroethane-water Interface as Studied by Electrolyte Ascending Polarography" Langmuir. 15, (in press).

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-12-08  

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