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

Application of time-resolved Raman spectroscopy using a F/1.8-spectrometer to the study of Electrochemical reaction processes

Research Project

Project/Area Number 06453028
Research Category

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

Allocation TypeSingle-year Grants
Research Field Physical chemistry
Research InstitutionWaseda University

Principal Investigator

ITOH Koichi  Waseda Univ.School of Sci.& Engineerin Professor, 理工学部, 教授 (40008503)

Co-Investigator(Kenkyū-buntansha) TAKAHASHI Hiroaki  Waseda Univ.School of Sci.& Engineerin Professor, 理工学部, 教授 (40063622)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 1995: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1994: ¥4,000,000 (Direct Cost: ¥4,000,000)
KeywordsTime-resolved Raman spectroscopy / electrode reactions / bachteriochlorophyll a / liquid crystal cell / F / 1.8 / 時間分解 / ラマン分光 / 電極反応 / 内部反射 / 液晶分子 / 電場配向
Research Abstract

The results are summarized as follows.
(1) Solvent effects of the resonance Raman spectra of bachteriochlorophyll a cation radical
The absorption and resonance Raman spectra of bachteriochlorophyll a cation radical (BChl a^<+・>), which were prepared electrochemically at a platinum electrode surface in fourteen solvents, were measured. The correlation sensitive time-between the states of ligation of the radical (5-or 6-coordinated) and the solvent effects of the absorption and RR spectra were established and applied to analyze the absorption and RR spectra of a photo-excited reaction center of a photosynthetic bactetria.
(2) Study of electrochemical oxidation processes of a benzidine derivative by time-resolved resonance Raman spectroscopy
One-and two-electron oxidation processes of 3,3', 5,5'-tetramethylbenzidine (TMB) at a platinun electrode surface were studied by using a time-resolved resonance Raman spectroscopy. The results indicated the following facts ; (i) one-electron oxidation pr … More oduct, monocation radical (TMB^<+・>), is readily converted to TMB and a dication (TMB^<2+>) through a disproportination reaction, (ii) the dication is deprotonated to form a neutral species (DMB), (iii) TMB and DMB forms a stable charge transfer complex, and (iv) a high electric conductivity observed for an electro-deposition product of TMB can be ascribed to the charge transfer complex state.
(3) Time-resolved total internal reflection Raman scattering study on electric-field-induced reorientation dynamics of a nematic liquid crystal cell
Total internal reflection (TIR) Raman scattering spectroscopy was performed by using a nematic liquid crystal (LC) cell of 4-hexyl-4'-cyanobiphenyl fablicated at the bottom of a high refractive index hemi-cylindrical prism. Time-resolved TIR Raman spectra indicated that a time-response of LC at the proximity of an alignment SiOx layr to an applied external electric field shows an induction period, being appreciably slower than that of LC in the bulk phase. Less

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] Y. Misono, M. Nagase and K. Itoh: "Time-resolved surface-enhanced resonance Raman scattering study of the reduction process of heptylviologen monocation radical film on silver electrode surfaces." Spectrochim. Acta. 50A. 1539-1553 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y. Misono, Enishizawa, L.Limantara, Y. Koyama and K. Itoh: "Solvent effects of the resonance Raman spectra of bacteriochlorophyll a cation radical." Chem. Phys. Lett.236. 413-418 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y. Misono, L. Limantara, Y. Koyama and K. Itoh: "The solvent effects on resonance Raman and electronic spectra of bacteriochloro-phyll a cation radical." J. Phys. Chem.100. 2422-2429 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] J. Tanno, K. Itoh, A. Tsuji and K. Hori: "Infrared spectroscopic study on the crystalline polymorphism and phasetransitionbehavior of mesogenic 4-heptyloxy-4'-cyanobiphenyl." J. Mol. Struct.379. 121-134 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y. Misono, Y. Ohkata, T. Morikawa and K.Itoh: "Resonance raman and absorption spectroscopic studies on the electrochemical oxidation processes of 3, 3', 5, 5'-tetramethylbenzidine." J. Electroanal. Chem.(印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] T. Morikawa, E. Shirai, J. Tanno, H. Takahashi, A. Yasuda and K. Itoh: "Time-resilved total internal reflection Raman scattering study on electric-field-induced reorientation dynamics of nematic liquid crystal of 4-hexyl-4'-cyanobiphenyl" Mol. Cryst. Liq. Cryst.(印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Misono, M.Nagase and K.Itoh: "Time-resolved surface-enhanced resonance Raman scattering study of the reduction process of heptylviologen monocation radical film on silver electrode surfaces." Spectrochim. Acta. 50A. 1539-1553 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Misono, Enishizawa, L.Limantara, Y.Koyama and K.Itoh: "Solvent effects of the resonance Raman spectra of bacteriochlorophyll a cation radical." Chem.Phys.Lett.236. 413-418 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Misono, L.Limantara, Y.Koyama and K.Itoh: "The solvent effects on resonance Raman and electronic spectra of bacteriochloro-phyll a cation radical." J.Phys.Chem.100. 2422-2429 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] J.Tanno, K.Itoh, A.Tsuji and K.Hori: "Infrared spectroscopic study on the crystalline polymorphism and phasetransition behavior of mesogenic 4-heptyloxy-4'-cyanobiphenyl." J.Mol.Struct.379. 121-134 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Misono, Y.Ohkata, T.Morikawa and K.Itoh: "Resonance Raman and absorption spectroscopic studies on the electrochemical oxidation processed of 3,3', 5,5'-tetramethylbenzidine." J.Electroanal.Chem.(In press.).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] T.Morikawa, E.Shirai, J.Tanno, H.Takahashi, A.Yasuda and K.Itoh: "Time-resilved total internal reflection Raman scattering study on electric-field-induced reorientation dynamics of nematic liquid crystal of 4-hexyl-4'-cyanobiphenyl." Mol.Cryst.Liq.Cryst.(In press.).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Misono,E.Nishizawa,L.Limantara,Y.Koyama and K.Itoh: "Solvent effects on the resonance Raman spectra of bacteriochlorophyll a cation radical" Chem.Phys.Lett.(印刷中).

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Yamamoto,K.Itoh,A.Nishigaki and S.Ohsima: "Effects of nonradiative energy transfer on photodimerization of a stilbazolium cation on Ag and GaAs substrates:infrared reflection absorption and emission spectroscopic studies." J.Phys.Chem.(印刷中).

    • Related Report
      1994 Annual Research Report
  • [Publications] A.Saito,T.Wajima,M.Yamamoto and K.Itoh: "Infrared spectral study on photodimerization process of 1-phenyl-4-(3-CN-octadecylpyridiniumyl)-1,3-butadiene embeddedin Langmuir-Brodgett films." Langmuir.(印刷中).

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Fujii,N.Osaka and K.Itoh: "Infrared reflection absorption spectroscopic study on adsorption structure of acrylic acid on evaporated silver films under ultrhigh vacuum conditions" Surface Sci.306. 381-392 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Y.Misono,M.Nagase and K.Itoh: "Time-resolved surface-enhanced resonance Raman scattering study of the reduction process of heptylviologen monocation radical film on silver electrode surfaces" Spectrochim.Acta. 50A. 1539-1553 (1994)

    • Related Report
      1994 Annual Research Report

URL: 

Published: 1994-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi