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1996 Fiscal Year Final Research Report Summary

New Aspect for Photophysics and Photochemistry of Coordination Compounds

Research Project

Project/Area Number 07304076
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section総合
Research Field Inorganic chemistry
Research InstitutionTokyo Institute of Technology

Principal Investigator

KAIZU Youkoh  Tokyo Institute of Technology, Dept.Chem.Prof., 理学部, 教授 (20016140)

Co-Investigator(Kenkyū-buntansha) MORITA Makoto  Seikei University, Dept.Ind.Chem., Prof., 工学部, 教授 (70054351)
ONISHI Masayoshi  Nagasaki University, Dept.Appl.Chem., Assistant Prof., 工学部, 助教授 (00039695)
YAMADA Sunao  Kyusyu University, Dept.Chem.Sci.Tech., Prof., 工学部, 教授 (30136551)
OHNO Takeshi  Osaka University, Dept.Chem.Prof., 大学院・理学研究科, 教授 (10029697)
AZUMI Tohru  Tohoku University, Dept.Chem.Prof., 大学院・理学研究科, 教授 (90013490)
Project Period (FY) 1995 – 1996
KeywordsCoordination compounds / Photochemistry / Photophysics / Photochemical molecular device / Photocatalyst / Electron transfer
Research Abstract

The main object of this project is to share our experiences and knowledge of coordination compounds in regard to photophysics, photochemistry, and new developments of photochemical molecular devices. Thus a symposium on the new aspect for photophysics and photochemistry of the coordination compounds was open at Dec.20 and 21 in Tokyo. Four subjects were mainly discussed : spectra and electronic structures, dinamics an mechanism of photoinduced electron and energy transfer, photochemistry and photocatalyst, and characterization of photochemical molecular devices of coordination compounds.
Following results are obtained : In the double complex salts of rac- [Cr(en)_3] -rac- [Cr_xAl_<1-x>(ox)_3], the luminescence spectrum at 15K shows the same vibronic progression as in chiral double complex salt. The emitting oxalate units have a similar structure to chiral double salt, although racemic [Cr(en)_3]^<3+> was used as a starting material. In dichrolomethane-trichloroacetic acid mixed solvent, a stable solution of OTiPc was obtained. A monolayr of OTiPc was formed upon spreading this solution onto the water surface and was deposited on substrates with a horizontal lifting method to form a multilar film. From the results of spectroscopic measurements, it is clear that a specific order of molecular orientation was performed. An amphiphilic porphyrin derivative or its zinc complex was also preferentially impregnated on a single surface of an ultrathin poly (vinyl chloride) film prepared by casting of molecular solution on water. Spectroscopic evidences for the formation of molecular association on the thin film were obtained. Some new photocatalytic reactions were investigated : [Re(bpy)(CO)_3{P(OEt)_3}]^+for the selective reduction of CO_2 to CO,[CoH{PPh(OEt)_2}_4] for olefin hydrogenations, and Sb (V) TPP (OCH_3)_2Br for oxygenation of cyclohexene with water.

  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] T.Otsuka,N.Takahashi,Y.Kaizu: "Energy Transfer from Tris (2,2,-bipyridine) ruthenium (II) or Tris (2,2,-bipyridine) osmium (II) to Hexacyanochromate (IV) in A Pure Crystal of Double Complex salt." Mol.Crys.Liq.Cryst.al. 286. 269-274 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ikeda,S.Kimachi,T.Azumi: "Spectroscopic Study on Fluorescing Processes of (nd)^<10> Transition-Metal complexes 1. ZnX_8(phen)(X=Cl). Br,I;phen=1,10,-phenauthroline Monohydrate)" J.Phys.Chem.100. 10528-10530 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] A.Yoshimura,K.Nozaki,N.Ikeda,T.Ohno: "Temperature-Dependent Rates of Electron Transfers and Intersystem Crossing on the Laser Excitation of Ligand-Bridged Pu (II) and Co (III) Conpounds" J.Pbys.Chem.100. 1630-1637 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Yamada,H.Iida,T.Matsuo: "A sym metric Properties of Ultrathim Poly (viuylcbloride) Films as Generated by Molecular Association of Ionic Porphyrins at the Polymer-Water Interface." Ber.Bunsenges.Phys.Chem.100. 1729-1735 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Ogawa,J.Yao,H.Yonehara,C.Pac: "Chemical Behairour of Oxotitanium (IV)phthalscyanine (OTiPc) Solutions Associated with the Preparation of OTiPc Monolayers and Multilayers" J.Mater.Chem.6. 143-148 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Ishii,J.Fujisawa,Y.Abe,S.Yamauchi: "A Time-Resolved Electron Paramagnetic Study on the Excited States of Tetraphenylporphinatozinc (II) Coordinatcd by plysidyl Nitroxde" J.Am.Chem.Soc.118. 13079-13080 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Yamada, H.Iida, T.Matsuo: "Asymmetric Properties of Ultrathin Poly (vinylchloride) Films as Generated by Molecular Association fo Ionic Porphyrins at the Polymer-Water Interface" Ber.Bunsenges.Phys.Chem.Vol.100. 1729-1735 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Ogawa, J.Yao, H.Yonehara, and C.Pac.: "Chemical Behavior of Oxotitanium (IV) phthalocyanine (OTiPc) Solutions Associated with the Preparation of OTiPc Monolayrs and Multilayrs" J.Mater.Chem.6. 143-148 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Yonehara and C.Pac.: "Photoelectrical Properties of Double-Layr Organic Solar Dells Using C60 and Phthalocyanines" Thin Solid Films. 278. 108 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Hori, F.P.A.Johnson, K.Koike, O.Ishitani, T.Ibusuki: "Efficient photocatalytic CO_2 reduction using [Re(bpy)(CO)_3{P(OEt)_3}]^+" J.Photochem.Photobiol.A : Chem.96. 171-174 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Hori, F.P.A.Johnson, K.Koike, K.Takeuchi, T.Ibusuki, O.Ishitani: "Photochemistry of [Re (2,2'-bipyridine) (CO)_3PPh_3]^+in the presence of triethanolamine associated with photoreductive fixation of carbon dioxide : participation of a chain reaction mechanism" J.Chem.Soc.Dalton Trans.(in press).

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Shiragami, K.Kubomura, D.Ishibashi, and H.Inoue: "Efficient Photochemical Oxygenation of Cyclohexene with Water as an Oxygen Donor Sensitized by Dimethoxy Coordinate Tetraphenylporphyrinatoantimony (V)" J.Am.Chem.Soc.118. 6311-6312 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A.Yoshimura, K.Nozaki, N.Ikeda, and T.Ohno: "Temperature-Dependent Rates of Electron Transfers and Intersystem Crossing on the Laser Excitation of Ligand-Bridged Ru (II) and Co (III) Compounds" J.Phys.Chem.100. 1630-1637 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Otsuka, N.Takahashi, and Y.Kaizu: "Energy Transfer from Tris (2,2'-bipyridine) ruthenium (II) or Tris (2,2'-bipyridine) osmium (II) to Hexacyanochromate (III) in A Pure Crystal of Double Complex Salt" Mol.Crys.Liq.Cryst.286. 269-274 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Ishii, J.Fujisawa, Y.Ohba, and S.Yamauchi: "A Time-Resolved Electron Paramagnetic Study on the Excited States of Tetraphenylporphinatozinc (II) Coordinated by p-Pyridyl Nitroxide" J.Am.Chem.Soc.118. 13079-13080 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ikeda, S.Kimachi, and T.Azumi: "Spectroscopic Study on Fluorescing Processes of (nd)^<10> Transitin-Metal Complexes. 1.ZnX_2 (phen) (X=Cl, Br, I ; phen=1,10-Phenanthroline Monohydrate)" J.Phys.Chem.100. 10528-10530 (1996)

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

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Published: 1999-03-09  

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