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2007 Fiscal Year Final Research Report Summary

UV-vis absorption spectra of powdered materials using optical waveguide spectroscopy

Research Project

Project/Area Number 17350016
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Organic chemistry
Research InstitutionThe University of Tokyo

Principal Investigator

OGAWA Keiichiro  The University of Tokyo, Graduate School of Arts and Sciences, Associate Professor (50114426)

Co-Investigator(Kenkyū-buntansha) HARADA Jun  The University of Tokyo, Graduate School of Arts and Sciences, Assitant Professor (00313172)
Project Period (FY) 2005 – 2007
KeywordsOptical waveguide spectroscopy / Organic solid materials / Uv-vis absorption spectra / Diffuse reflectance spectra materials
Research Abstract

The UV-vis absorption spectrum of solid powdered materials is of great importance in chemistry and material science. However, there has been no way to obtain directly the absorption spectrum of powdered materials, because transmittance spectroscopy is not applicable. Accordingly, diffuse reflectance is measured. Recently, a spectroscopy utilizing an optical waveguide has attracted considerable attention as a new analytical tool. An incident light to the optical waveguide, which is usually a thin quartz plate, proceeds in the waveguide repeating total reflections. When a total reflection occurs, the so-called evanescent light emerges from the outer surface of the optical waveguide. The emerging distance is about a wavelength of the incident light. When the evanescent light is absorbed by the sample that is placed on the optical waveguide, the outgoing light from the optical waveguide decreases in intensity. As a result, an absorption spectrum of the sample on the optical waveguide is obtained. This spectrum is the absorption spectrum of the molecules that reside within a distance of 1 μm from the surface of the optical waveguide. This suggests that an absorption spectrum of solid powdered materials as they are can be obtained, if the powdered materials are placed on the optical waveguide. In accordance with this expectation, we were successful to obtain UV-vis absorption spectrum of powdered materials by the use of optical waveguide spectroscopy in some cases. We found that optical waveguide spectroscopy can be an excellent method for obtaining true absorption spectra of powdered materials as they are without any treatment. This method can be applied not only to fine powders but also to larger crystals.

  • Research Products

    (45 results)

All 2007 2006 2005 Other

All Journal Article (6 results) (of which Peer Reviewed: 3 results) Presentation (38 results) Remarks (1 results)

  • [Journal Article] Crucial Role of Fluorescence in the Solid-State Thermochromism of Salicylideneanilines2007

    • Author(s)
      原田潤
    • Journal Title

      J. Am. Chem. Soc. 129

      Pages: 16216-16221

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Temperature-Induced Reversal of Proton Tautomerism : Role of Hydrogen Bonding and Aggregation in 7-Hydroxyquinolines2007

    • Author(s)
      三浦真稔
    • Journal Title

      J. Phys. Chem. A 111

      Pages: 9854-9858

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Crucial Role of Fluorescence in the Solid-State Thermochromism of Salicylideneanilines2007

    • Author(s)
      J. Harada, T. Fujiwara, K. Ogawa
    • Journal Title

      J. Am. Chem. Soc 129

      Pages: 16216-16221

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Temperature-Induced Reversal of Proton Tautomerism : Role of Hydrogen Bonding and Aggregation in 7-Hydroxyquinolines2007

    • Author(s)
      M. Miura, J. Harada, K. Ogawa
    • Journal Title

      J. Phys. Chem. A 111

      Pages: 9854-9858

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Effect of Solvent on cis-to-trans Isomerization of 4-Hydroxyazobenzene Aggregated through Intermolecular Hydrogen Bonds2005

    • Author(s)
      小嶋政信
    • Journal Title

      J. Phys. Org. Chem. 18

      Pages: 994-1000

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Effect of Solvent on cis-to-trans Isomerization of 4-Hydroxyazobenzene Aggregated through Intermolecular Hydrogen Bonds2005

    • Author(s)
      M. Kojima, S. Nebashi, K. Ogawa, N. Kurita
    • Journal Title

      J. Phys. Org. Cnem 18

      Pages: 994-1000

    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Crystal Structure Analysis of Cis/Trans Photoizomerizations2007

    • Author(s)
      J. Harada
    • Organizer
      AsCA'07
    • Place of Presentation
      台北
    • Year and Date
      2007-11-07
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Crystal structure analysis of cis/trans photoisomerization2007

    • Author(s)
      J. Harada. M. Harakawa, K. Ogawa
    • Organizer
      AsCA'07
    • Place of Presentation
      Taipei.
    • Year and Date
      2007-11-07
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Solid-state Photo- and Thermochromism of Salicylideneanilines2007

    • Author(s)
      K. Ogawa
    • Organizer
      AsCA'07
    • Place of Presentation
      台北
    • Year and Date
      2007-11-06
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Solid-State Photo- and Thermochromism of Salicylideneanilines2007

    • Author(s)
      K. Ogawa, T. Fujiwara, J. Harada
    • Organizer
      AsCA'07
    • Place of Presentation
      Taipei.
    • Year and Date
      2007-11-06
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] 光導波路分光法による有機粉末試料の紫外可視吸収スペクトル測定2007

    • Author(s)
      小川桂一郎
    • Organizer
      2007年光化学討論会
    • Place of Presentation
      信州大学(松本)
    • Year and Date
      2007-09-28
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Measurements of UV-vis Absorption Spectra of Powdered Materials Using Optical Waveguide Spectroscopy2007

    • Author(s)
      K. Ogawa, T. Matsumoto, J. Harada
    • Organizer
      Annual Meeting or the Japanese Photochemistry Association 2007
    • Place of Presentation
      Matsumoto.
    • Year and Date
      2007-09-28
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] X-ray diffraction analyses of cis-trans photoisomerization of olefins2006

    • Author(s)
      J. Harada
    • Organizer
      AsCA'06/CrSJ
    • Place of Presentation
      つくば
    • Year and Date
      2006-11-23
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] X-ray diffraction analyses of cis/trans photoisomerization of olefins2006

    • Author(s)
      J. Harada. M. Harakawa, K. Ogawa
    • Organizer
      AsCA'06/CrSJ
    • Place of Presentation
      Tsukuba.
    • Year and Date
      2006-11-23
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Solid-State Photo- and Thermochromism of Salicylideneanilines2006

    • Author(s)
      K. Ogawa
    • Organizer
      Japan-France Joint Seminar
    • Place of Presentation
      葉山
    • Year and Date
      2006-10-17
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Solid-State Photo- and Thermochromism of Salicylideneanilines2006

    • Author(s)
      K, Ogawa. T. Fujiwara, J. Harada
    • Organizer
      Japan France Joint Seminar
    • Place of Presentation
      Hayama.
    • Year and Date
      2006-10-17
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] フルギド類のフォトクロミズムのX線結晶解析2006

    • Author(s)
      原田潤
    • Organizer
      2006年光化学討論会
    • Place of Presentation
      仙台
    • Year and Date
      2006-09-10
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] X-ray Crystal Structure Analysis of Photochromic Reactions of Fulgides2006

    • Author(s)
      J. Harada. R. Nakajima, K. Ogawa
    • Organizer
      Annual Meeting of the Japanese Photochemistry Association 2006
    • Place of Presentation
      Sendai.
    • Year and Date
      2006-09-10
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] A New Perspective on the Solid-state Photo- and Thermochromism of Salicyliene anilines2006

    • Author(s)
      K. Ogawa
    • Organizer
      XXIst IUPAC Symposium on Photochemistry
    • Place of Presentation
      京都
    • Year and Date
      2006-04-06
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] A New Perspective on the Solid-State Photo- and Thermochromism of Salicylieneanilines2006

    • Author(s)
      K, Ogawa. T. Fujiwara, J. Harada
    • Organizer
      XXIst IUPAC Symposium on Photochemistry
    • Place of Presentation
      Kyoto.
    • Year and Date
      2006-04-06
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] X-ray Crystal Structure Analysis of Photochromic Reaction of Flugides2006

    • Author(s)
      J. Harada
    • Organizer
      XXIst IUPAC Symposium on Photochemistry
    • Place of Presentation
      京都
    • Year and Date
      2006-04-05
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] X-ray Crystal Structure Analysis of Photochromic Reactions of Fulgides2006

    • Author(s)
      J. Harada. R. Nakajima, K. Ogawa
    • Organizer
      XXIst IUPAC Symposium on Photochemistry
    • Place of Presentation
      Kyoto.
    • Year and Date
      2006-04-05
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] X-ray diffraction analyses of volume-conserving reactions and molecular motions in crystals2005

    • Author(s)
      J. Harada
    • Organizer
      Pacifichem 2005 Congress
    • Place of Presentation
      ホノルル
    • Year and Date
      2005-12-18
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] X-ray diffraction analyses of volume-conserving reactions and molecular motions in crystals2005

    • Author(s)
      J. Harada. M. Harakawa, K. Ogawa
    • Organizer
      Pacifichem 2005 Congress
    • Place of Presentation
      Honolulu.
    • Year and Date
      2005-12-18
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Measurements of UV-vis Absorption Spectra of Powdered Materials Using Optical Waveguide Spectroscopy2005

    • Author(s)
      K. Ogawa
    • Organizer
      Pacifichem 2005 Congress
    • Place of Presentation
      ホノルル
    • Year and Date
      2005-12-16
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Measurements of UV-vis Absorption Spectra of Powdered Materials Using Optical Waveguide Spectroscopy2005

    • Author(s)
      K. Ogawa. T. Matsumoto, J. Harada
    • Organizer
      Pacifichem 2005 Congress
    • Place of Presentation
      Honolulu.
    • Year and Date
      2005-12-16
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] サリチリデンアニリン類のプロトン互変異性2005

    • Author(s)
      小川桂一郎
    • Organizer
      日本結晶学会2005
    • Place of Presentation
      姫路
    • Year and Date
      2005-12-06
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] フルギド類の単結晶フォトクロミズム2005

    • Author(s)
      原田潤
    • Organizer
      日本結晶学会2005
    • Place of Presentation
      姫路
    • Year and Date
      2005-12-06
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Proton tautomerism of salicylideneanilines2005

    • Author(s)
      T. Fujiwara, J. Harada, K. Ogawa
    • Organizer
      Annual Meeting of the Crystallographic Society of Japan 2005
    • Place of Presentation
      Himeji.
    • Year and Date
      2005-12-06
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Single-Crystal Photochromism of Fulgides2005

    • Author(s)
      J. Harada. R. Nakajima, K. Ogawa
    • Organizer
      Annual Meeting of the Crystallographic Society of Japan 2005
    • Place of Presentation
      Himeji.
    • Year and Date
      2005-12-06
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] フルギド類の単結晶フォトクロミズム : X線解析による分子構造変化の観測2005

    • Author(s)
      中島亮
    • Organizer
      第14回有機結晶シンポジウム
    • Place of Presentation
      京都
    • Year and Date
      2005-09-30
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] 結晶相cis-trans光異性化反応のX線解析による追跡2005

    • Author(s)
      原川真由子
    • Organizer
      第14回有機結晶シンポジウム
    • Place of Presentation
      京都
    • Year and Date
      2005-09-30
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Single-Crystal Photochromism of Fulgides : Observation of the Molecular Structure Change using X-ray Diffraction2005

    • Author(s)
      J. Harada, R. Nakajima, K. Ogawa
    • Organizer
      14^<th> Organic Crystal Chemistry Symposium
    • Place of Presentation
      Kyoto.
    • Year and Date
      2005-09-30
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] X-ray diffraction analyses of cis/trans photoisomerization of olefins2005

    • Author(s)
      M. Harakawa. J. Harada, K. Ogawa
    • Organizer
      AsCA'06/CrSJ, November 23, 2006, Tsukuba. 14^<th> Organic Crystal Chemistry Symposium
    • Place of Presentation
      Kyoto.
    • Year and Date
      2005-09-30
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] サリチリデンアニリン類結晶のサーモクロミズム2005

    • Author(s)
      小川桂一郎
    • Organizer
      2005光化学討論会
    • Place of Presentation
      福岡
    • Year and Date
      2005-09-13
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] 結晶中におけるcis-trans光異性化反応のX線解析2005

    • Author(s)
      原田潤
    • Organizer
      2005光化学討論会
    • Place of Presentation
      福岡
    • Year and Date
      2005-09-13
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Thermochromism of Salicylideneanilines in Crystals2005

    • Author(s)
      T. Fujiwara, J. Harada, K. Ogawa
    • Organizer
      Annual Meeting of the Japanese Photochemistry Association 2005
    • Place of Presentation
      Fukuoka.
    • Year and Date
      2005-09-13
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] X-ray diffraction analyses of cis-trans photoisomerization2005

    • Author(s)
      J. Harada. M. Harakawa, K. Ogawa
    • Organizer
      Annual Meeting of the Japanese Photochemistry Association 2005
    • Place of Presentation
      Fukuoka.
    • Year and Date
      2005-09-13
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] 結晶相cis-trans光異性化反応のX線解析による追跡2005

    • Author(s)
      原川真由子
    • Organizer
      第35回構造有機化学討論会
    • Place of Presentation
      大阪
    • Year and Date
      2005-09-09
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] 結晶相オレフィン光異性化反応のX線解析2005

    • Author(s)
      原田潤
    • Organizer
      第35回構造有機化学討論会
    • Place of Presentation
      大阪
    • Year and Date
      2005-09-09
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] X-ray diffraction analyses of cis-trans photoisomerization in crystals2005

    • Author(s)
      J. Harada, M. Harakawa, K. Ogawa
    • Organizer
      35^<th> Meeting of Structural Organic Chemistry
    • Place of Presentation
      Osaka.
    • Year and Date
      2005-09-09
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] X-ray diffraction analyses of crystalline-state cis-trans photoisomerization2005

    • Author(s)
      J. Harada. M. Harakawa, K. Ogawa
    • Organizer
      35^<th> Meeting of Structural Organic Chemistry
    • Place of Presentation
      Osaka.
    • Year and Date
      2005-09-09
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Role of Self-Association in Proton Tautomerization of Salicylideneanilines2005

    • Author(s)
      K. Ogawa
    • Organizer
      20th International Union of Crystallography Congress
    • Place of Presentation
      フィレンツェ
    • Year and Date
      2005-08-24
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Role of Self-Association in Proton Tautomerism of Salicylidenailines2005

    • Author(s)
      K. Ogawa. J. Harada, T. Fujiwara
    • Organizer
      20th International Union of Crystallography Congress
    • Place of Presentation
      Florence
    • Year and Date
      2005-08-24
    • Description
      「研究成果報告書概要(欧文)」より
  • [Remarks] 「研究成果報告書概要(和文)」より

    • URL

      http://maildbs.c.u-tokyo.ac.jp/~ogawa/index.html

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Published: 2010-06-09  

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