• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1988 Fiscal Year Final Research Report Summary

Phosphorescence Magnetic Circular Dichroism Detected Magnetic Resonance Study on Organic Compounds

Research Project

Project/Area Number 62470005
Research Category

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

Allocation TypeSingle-year Grants
Research Field 物理化学一般
Research InstitutionThe University of Electro-Communications

Principal Investigator

I'HAYA YasumasaJ.  The University of Electro-Communications, 電気通信学部, 教授 (30017280)

Co-Investigator(Kenkyū-buntansha) NARISAWA Takatoshi  The University of Electro-Communications, 電気通信学部, 助手 (30143712)
ITO Hirotoshi  The University of Electro-Communications, 電気通信学部, 講師 (30017389)
Project Period (FY) 1987 – 1988
Keywordsamplifier / spin polarization / magnetic circular dichroism / naphthoquinone / 磁気円偏光二色性(MCD)
Research Abstract

The main object of the present project is to construct an FET amplifier which intensifies usual microwave power up to 10 - 20 W in the range of 2 GHz to 8 GHz. It is not very difficult to obtain a microwave power of such strength at a fixed wavelength, but it is a task of extreme difficult to construct a microwave sweeper having such high power in such wide wavelength region. We spent a whole year to construct an FET amplifier which can answer our purposes. The second year of the project has been devoted to invent matched attenuators. A XeCl excimer laser with a dye laser is used to pump a sample crystal to an excited singlet state from which an energy (or spin polarization) is transferred to an excited triplet state via intersystem crossing. With saturation recovery by means of the abovementioned microwave sweeper, the intensity change of the magnetic circular dichroism (MCD) of the phosphorescence spectrum is observed. Naphthoquinone and anthraquinone are investigate d with the present method and it is proved that the method works actually well to analyze the properties of triplet molecules whose phosphorescence spectra are too weak to be applied with the phosphorescence and microwave double resonance method and/or microwave induced delayed phosphorescence method.

  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] Hisao Murai,et al.: Report of University of Electro-Communications. 37(2). 153-162 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tatsuji Sano,et al.: Chemical Physics Letters. 138. 291-295 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hirotoshi Ito,et al.: Bulletin of Chemical Societ of Japan. 60. 2791-2801 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hirotoshi Ito,et al.: Chemical Physics Letters. 142. 25-32 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hisao Murai,et al.: J.Physical Chemistry. 92. 2120-2124 (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hisao Murai,et al.: Chemical Physics Letters. 144. 417-420 (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshio Sakaguchi,et al.: J.American Chemical Society. 110. 7479-7484 (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H. Murai; Y. Yamamoto; Y. Mizunuma; Y. J. I'Haya: "Time-Resolved ESR Study of the Induction of Specific Polarization Through Triplet-Triplet Energy Transfer in an SDS Micelles and gamma-Cyclodextrin" Report of University of Electo-Communications. 37(2). 153-162 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Ito; Y. J. I'Haya: "A Linear Response Polarizability Theory for an Extended Fano-DeVoe Model with Comments on the Joint Use of Both Short- and Long-Range Inter(sub)molecular Interaction Approximation." Bull. Chem. Soc. Japan. 60. 2791-2801 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Ito; Y. J. I'Haya: "A Polarizability Theory for Z-DNA'S:The UV Absorption and CD Bandshape Calculations for the B-to-Z Transition of Poly(dG-dC).Poly(dG-dC)." Chem. Phys. Lett.142. 25-32 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Murai; H. Minami; Y. J. I'Haya: "Time-Resolved ESR Detection of the Phosphorescence States of Xanthone in Glassy Matrices at 77 K." J. Phys. Chem.92. 2120-2124 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Murai; Y. Mizunuma; K. Ashikawa; Y. Yamamoto; Y. J. I'Haya: "Intermolecular Energy Transfer of the Spin Polarized Triplet State in gamma-Cyclodextrin Cavity." Chem. Phys. Lett.144. 417-420 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Sakaguchi; H. Hayashi; H. Murai; Y. J. I'Haya: "Formation of Cyclohexadienyl-Type Radicals in the Photoreduction of Xanthone as Studied by a Laser Photolysis-ESR Technique." J. American Chem. Soc.110. 7479-7484 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tatsuji Sano, Susumu Narita, and Yasumasa J. I'Haya: "Optimization with a Direct Search for Orbital Localization" Chemical Physics Letters. 138. 291-295 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hisao Murai; Yasumasa J. I'Haya: "Time-Resolved ESR Study of the Triplet State of Xanthone and the Triplet-Triplet Energy Transfer in Cyclodextrins" Chemical Physics.

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

URL: 

Published: 1990-03-20  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi