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Spectroscopic study on photo-reaction of active oxygen comlex

Research Project

Project/Area Number 26410006
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Physical chemistry
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

SHIBUYA KAZUHIKO  東京農工大学, 大学院生物システム応用科学府, 客員教授 (30126320)

Research Collaborator NAKATA Munetaka  東京農工大学, 大学院工学研究院, 教授
AKAI Nobuyuki  東京農工大学, 大学院工学研究院, 准教授
Project Period (FY) 2014-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywords活性酸素 / 一重項酸素 / 衝突錯体 / 二電子同時遷移 / 可視紫外分光 / 衝突錯体形成 / 錯体形成 / 可視光吸収 / りん光 / 電子遷移 / 消光 / 光反応
Outline of Final Research Achievements

I constructed a spectroscopic chamber which could be cooled down to -195℃ and analyzed quantitatively the absorption spectra of liquid oxygen. Two oxygen molecules in the excited singlet states were generated simultaneously by single photon absorption through the collision-induced light absorption (CIA). The CIA bands measured in the 200-800 nm region were studied. The light absorption cross sections (σ values) at the peaks of the CIA bands were determined in pure oxygen and oxygen/rare gas mixture liquid systems. The σ values accord with the corresponding values determined in the gas system. The CIA cross sections in both the liquid and gas phases could be expressed by an identical analytical equation, though the physical environments are quite different and the number densities in the systems changes in three orders of magnitude. One could estimate the absorbance through the equation by introducing the number density of oxygen molecules in both the liquid and gas systems.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (9 results)

All 2017 2016 2015 2014

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 5 results,  Acknowledgement Compliant: 3 results) Presentation (1 results)

  • [Journal Article] Reassessing the atmospheric oxidation mechanism of toluene2017

    • Author(s)
      Y. Ji, J. Zhao, H. Terazono, K. Misawa, N. P. Levitt, Y. Li, Y. Lin, J. Peng, Y. Wang, L. Duan, B. Pan, F. Zhang, X. Feng, T. An, W. Marrero-Ortiz, J. Secrest, A. L. Zhang, K. Shibuya, M. J. Molina and R. Zhang
    • Journal Title

      PNAS (Proceedings of the National Academy of Sciences of the United States of America)

      Volume: 114 Issue: 31 Pages: 8169-8174

    • DOI

      10.1073/pnas.1705463114

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Rate constant measurements for initial addition reactions of radicals at the propagation step of photo-polymerization as studied by pulsed EPR spectroscopy2016

    • Author(s)
      Yusuke Miyaka, Yutaka Marushima, Hirona Takahashi, Nobuyuki Akai, Kazuhiko Shibuya and Akio Kawai
    • Journal Title

      Journal of Physical Organic Chemistry

      Volume: 29 Issue: 9 Pages: 468-475

    • DOI

      10.1002/poc.3566

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rate constant measurements for initial addition reactions of radicals at the propagation step of photo-polymerization as studied by pulsed EPR spectroscopyRate constant measurements for initial addition reactions of radicals at the propagation step of photo-polymerization as studied by pulsed EPR spectroscopy2016

    • Author(s)
      Y. Miyake, Y. Marushim, H. Takahashi, N. Akai, K. Shibuya and A. Kawai
    • Journal Title

      J. Phys. Org. Chem. (2016) Accepted: 10 March 2016

      Volume: 印刷中

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] 光化学のさらなる発展を期待して2016

    • Author(s)
      渋谷一彦
    • Journal Title

      光化学協会 光化学

      Volume: 印刷中

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] Addition Rate Constants of Phosphorus- and Carboncentered Radicals to Double Bond of Monomers as Studied by a Pulsed EPR Method2015

    • Author(s)
      H. Takahashi, Y. Marushima, K. Shibuya, and Akio Kawai
    • Journal Title

      J. Phys. Chem. A

      Volume: 119 Issue: 30 Pages: 8261-8268

    • DOI

      10.1021/acs.jpca.5b04464

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] Vaporization of Protic Ionic Liquids Studied by Matrix-Isolation FTIR Spectroscopy2014

    • Author(s)
      Mami, Horikawa, Nobuyuki, Akai, Akio Kawai, Kazuhiko Shibuya
    • Journal Title

      J.Phys.Chem. A

      Volume: 118 Issue: 18 Pages: 3280-3287

    • DOI

      10.1021/jp501784w

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Structure and reactivity of radicals produced by photocleavage of oxime ester compounds studied by time-resolved electron paramagnetic resonance spectroscopy2014

    • Author(s)
      Yusuke Miyake, Hirona Takahashi, Nobuyuki Akai, Kazuhiko Shibuya, Akio Kawai
    • Journal Title

      Chem.Letters

      Volume: 43 Issue: 8 Pages: 1275-1277

    • DOI

      10.1246/cl.140296

    • NAID

      130004427134

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Pulsed EPR study on large dynamic electron polarisation created in the quenching of photo-excited2014

    • Author(s)
      Hirona Takahashi, Masaki Iwama, Nobuyuki Akai, Kazuhiko Shibuya, Akio Kawai
    • Journal Title

      Mol.Phys.

      Volume: 112 Issue: 7 Pages: 1012-1020

    • DOI

      10.1080/00268976.2013.827255

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 全反射分光法による固液界面近傍イオン液体中の色素分子電子スペクトル測定2014

    • Author(s)
      楊箸 爽, 付 哲斌, 小倉 隆宏, 渋谷 一彦, 河合 明雄
    • Organizer
      分子科学討論会
    • Place of Presentation
      広島大学
    • Year and Date
      2014-09-22 – 2014-09-24
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2019-03-29  

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