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Study of Spectroscopic and Photochemical Behavior of Zeolite Supramolecules

Research Project

Project/Area Number 10640487
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Physical chemistry
Research InstitutionShinshu University

Principal Investigator

KOJIMA Masanobu  Shinshu University, Fac. Agriculture, Professor, 農学部, 助教授 (20153538)

Co-Investigator(Kenkyū-buntansha) TAKEYA Haruhiko  COSMO Research Institute, Reseacher, 研究員
KURIYAMA Yasunao  Kitasato Univ., Fac. Science, Lecturer, 理学部, 講師 (50225273)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2000: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1999: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1998: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsZeolite Nanocavities / Adsorption / Aromatic Alkenes / Azobenzene / Cis-Trans Photoisomerization / Photooxygenation / Electrostatic Interaction / Effects of Metal Cations / ゼオライト / シスートランス光異性化 / スチルベン / 濃度効果 / 自由体積 / 金属イオン / 超分子 / 4-メトキシスチレン / 吸着水の効果 / 金属イオンの効果 / シス_トランス異性化 / シス-トランス異性化 / 光誘起電子移動反応 / 電荷移動吸収スピクトル / 二量化反応 / イオンラジカル
Research Abstract

In order to elucidate the spectroscopic and photochemical behavior of guest molecules included in zeolite nanocavities, we (1) took the spectroscopic measurements of the BrΦnsted and Lewis acidities in the cavities, and studied (2) the dark reaction of aromatic alkenes caused by the BrΦnsted and Lewis acid sites, (3) the effects of alkali-metal cations in the cavities on the cis-trans photoisomerization of stilbene and azobenzene, and (4) the effects of alkali-metal cations in the cavities on the photooxygenation of aromatic alkenes. From these investigations, we obtained the following significant information about the cavities:
1. Using 2-quinolone as a probe, the BrФnsted and Lewis acidities in the cavities were determined more precisely than by previous procedures such as the Hammett method.
2. When electron-rich aromatic alkenes were adsorbed in proton-exchanged zeolites, their dark reaction proceeded readily due to the BrΦnsted and Lewis acid sites in the cavities. Therefore, it seems likely that alkali-metal cation exchanged zeolites are suitable photochemical reaction vessels for the alkenes.
3. It was found that the co-adsorbed water in the cavities accelerated the above dark reactions.
4. Due to the electrostatic interaction between guest molecules and metal cations in the cavities, the photodimerization of styrenes and the intramolecular cycloaddition of stilbenes were suppressed. As a result, the photooxygenation of the alkenes occurred more efficiently in the cavities than in solutions.
5. It was found that the photochemical behavior of guest molecules adsorbed in the cavities depends on the site in which the molecules electrostatically interact with the metal cations.
These results clearly indicate that the characteristics of zeolite cavities can be explained to regulate the photochemical behavior of guest molecules.

Report

(4 results)
  • 2001 Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (33 results)

All Other

All Publications (33 results)

  • [Publications] 小嶋政信: "ゼオライト超分子の光化学"光化学. 31. 173-182 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y.Kuriyama et al.: "Mechanism and Potential Energy Surface for Photoisomerization of Stilbene in Zeolite Nanospace"Chem. Lett.. 843-844 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Takeya et al.: "Photooxygenation of Stilbenes in Zeolite by Excitation of Their Contact Charge Transfer Complexes with Oxygen"Tetrahedron Lett.. 39. 5967-5970 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] C.Matsubara, M.Kojima: "Effect of Co-adsorbed Water on Photodimerization and Photooxygenation of 4-Methoxystyrene Included in NaY"Tetrahedron Lett.. 40. 3439-3442 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Kojima et al.: "Spectroscopic and Photophysical Behavior of 2-Quinolone as a Probe for Bronsted and Lewis Acid Sites in Zeolites"Chem. Lett.. 675-676 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Kojima et al.: "Concentration Dependent Photodimerization of Azobenzenes in Solution"Chem. Lett.. 686-687 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Kojima et al.: "Photoisomerization of Azobenzene in Zeolite Cavities"Mol. Cryst. Liq. Cryst. 344. 179-184 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] C.Matsubara, M.Kojima: "Photooxygenation and Photodimerization of 4-Mcthoxystyrene in Zeplite NaY. The Role of Co-adsorbed Water and the Alkene・O_2 Charge-Transfer Complex"Res. Chem. Intermed. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Kojima et al.: "The Effects of the Alkali-Metal Ion on the Photooxygenation of Aromatic Alkenes in Zeolite Nanocavities"(投稿中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kojima,M.: "Photochemistry of Supramolecules"Photochemistry. 31. 173-182 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kuriyama,Y., Takeya,H., Oishi,S., Kojima,M.: "Mechanism and Potential Energy Surface for Photoisomerization of Stilbene in Zeolite Nanospace"Chem. Lett. 843-844 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takeya,H., Kuriyama,Y., Kojima,M.: "Photooxygenation of Stilbenes in Zeolite by Excitation of Their Contact Charge Transfer Complexes with Oxygen"Tetrrahedron Lett. 39. 5967-5970 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Matsubara,C., Kojima,M.: "Effect of Co-adsorbed Water on Photodimerization and Photooxygenation of 4-Methoxystyrene Included in NaY"Tetrahedron Lett. 40. 3439-3442 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kojima,M., Odaka,A., Nakajima,T., Kuriyama,Y.: "Spectroscopic and Photophysical Behavior of 2-Quinolone as a Probe for BrФnsted and Lewis Acid Sites in Zeolites"Chem. Lett. 675-676 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kojima,M., Takagi,T., Karatsu,T.: "Concentration Dependent Photodimerization of Azobenzenes in Solution"Chem. Lett. 686-687 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kojima,M., Takagi,T., Goshima,T.: "Photoisomerization of Azobenzene in Zeolite Cavities"Mol. Cryst. Liq. Cryst. 344. 179-184 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Matsubara,Chie, Kojima,Masanobu: "Photooxygenation and Photodimerization of 4-Methoxystyrene in Zeolite NaY. The Role Co-adsorbed Water and the Alkene・0_2 Charge-Transfer Complex"Res. Chem. Intermed.. in press.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kojima,Masanobu, Nakajoh,Miyuki, Matsubara,Chie, Takeya,Haruhiko: "The Effects of the Alkali-Metal Ion thp Photooxygenation of Aromatic Alkenes in Zeolite Nanocavities"in contribution.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 小嶋政信: "ゼオライト超分子の光化学"光化学. 31. 173-182 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Kojima et al.: "Concentration Dependent Photodimerization of Azobenzenes in Solution"Chem.Lett.. 686-687 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Kojima et al.: "Photoisomerization of Azobenzene in Zeolite Cavities"Mol.Cryst.Liq.Cryst.. 344. 179-184 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Kojima et al.: "Charge-Density and Ring-Size Dependent Dimerization of...."Bull.Chem.Soc.Jpn.. 73. 1557-1565 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Kojima(他): "Spectroscopic and Photophysical Behavior of 2_Quinolone as a Probe for Bronsted and Lewis Acid Sites in Zeolites"Chem.Lett.. 675-676 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] C.Matsubara and M.Kojima: "Effect of Co-adsorbed Water on Photodimerization and Photooxygenation of 4-Methoxystyrene Included in NaY"Tetrahedron Lett.. Vol.40. 3439-3442 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Kojima(他): "Photoisomerization of Azobenzene in Zeolite Cavities"Mol.Cryst.Liq.Cryst.. 印刷中.

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Kojima(他): "Methylene Blue Sensitized Degradation of Sodium Hyaluronate through photoinduced Electron Transfer"Chem.Lett.. No.4印刷中. (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.Itoh(他): "Steric Effect on Photochemistry of Benzyl Ester Derivatives 2. Effects of Substituents and Oxygen on Pohtolysis of α-Methyl-Substituted Benzyl Alkanoates"J.Photochem.Photobiol.A:Chem.. Vol.127. 75-81 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Kojima(他): "Mechanism and Potential Energy Surface for Photoisomerizaition of Stilbene in Zeolite Nanospace" Chem.Lett.843-844 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Kojima(他): "Photooxygenation of Stilbenes in Zeolite by Excitation of Their Contact Charge Transfer Complexes with Oxygen" Tetrahedron Lett.39. 5967-5970 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Kojima(他): "Photoreactivities of Contact Charge-Transfer Complexes between 1, 1-Diarylethenes and Oxygen Molecules. Dimerization and Oxygenation Accelerated in …" Bull.Chem.Soc.Jpn.71. 2211-2220 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Kojima(他): "Study of Reactive Intermediates in Photoinduced Electron Transfer Anti-Markovnikov Addition of Methanol to 1-Phenylcycloalkenes" Bull.Chem.Soc.Jpn.72 (印刷中). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Itoh(他): "Steric Effect on Photochemistry of Benzyl Ester Derivatives 1. Photolysis of 1-(Naphthyl)ethyl Alkanoates in Methanol" J.Photochem.Photobiol.A : Chem.117. 91-98 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小嶋政信(他): "溶液及びゼオライト細孔内における芳香族オレフィン・酸素分子間接触電荷移動錯体の光化学" 光化学討論会講演要旨集. 28 (1998)

    • Related Report
      1998 Annual Research Report

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

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