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2002 Fiscal Year Final Research Report Summary

Construction and Function of One-dimensional Organometallic Composites Consisting of π-Conjugated Molecule and Metal Chain

Research Project

Project/Area Number 13450370
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Synthetic chemistry
Research InstitutionOsaka University

Principal Investigator

KUROSAWA Hideo  Osaka University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (40029343)

Project Period (FY) 2001 – 2002
KeywordsCluster-comlex / sandwich-complex / palladium complex / polyene
Research Abstract

Great attention has been paid to π-conjugated molecules such as polyacetylenes and polyphenylenes as functional organic materials, while one-dimensional polymetal wires also attract attention as inorganic functional materials and catalysts. The objective of the current project is to construct linear organometallic composites by combining these organic and inorganic conjugate systems via coordination bond, and to examine their catalytic and electric properties for application to the functional composites.
We first attained the synthesis of Pd-Pd bonded complex containing six acetonitrile ligands, which suit for substitution by rather weakly coordinating unsaturated hydrocarbon ligands. This Pd-Pd complex reacted with 1,6-diphenylhexatriene to give sandwich complex in which two hexatriene ligands coordinate with the Pd-Pd moiety. The structure of the new sandwich complex was determined by X-ray crystallography. The reaction of a given polyene (double bond number = n) with acetonitrile Pd-Pd complex in the presence of n-3 equivalent Pd(0) afforded linear sandwich complex composed of (Pd)n-1 chain and two polyene ligands.
We also found that photo-irradiation (>510 nm) at room temperature of Pd3-tetraene sandwich complex induces interconversion between meso and racemi isomers of this sandwich complex, while no such interconversion takes place under dark at room temperature. Treatment of the Pd3 sandwich with reducing or oxidizing reagent led to no similar isomerization.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] H.Kurosawa, 他4名: "Reversible Interconversion between Dinuclear Sandwich and Half-Sandwich Complexes Unique Dynamic Behavior of Pd-Pd Moiety Surrounded by SP^2 Carbon Framework"J.Am.Chem.Soc. 123. 6927-6928 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Kurosawa, 他3名: "Photo-induced Face Inversion of Conjugated Tetracne Ligands on a Pd-Pd-Pd Moiety"J.Am.Chem.Soc. 124. 14288-14289 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Murahashi, H.Kurosawa: "Organopalladium Complexes Containing Palladium-Palladium Bonds"Coord.Chem.Rev.. 231. 207-228 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hideo Kurosawa, others(4): "Reversible Interconversion between Dinuclear Sandwich and Half sandwich Complexes Unique Dynamic Behavior of Pd-Pd Moiety Surrounded by SP^2 Carbon Framework"J. Am. Chem. Soc.. 123. 6927-6928 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hideo Kurosawa, others(3): "Photo-induced Foce Inversion of Conjugated Tetraene Ligands on a Pd-Pd-Pd Moiety"J. Am. Chem. Soc.. 124. 14288-14289 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tetsuro Murahashi, Hideo Kurosawa: "Organopalladium Complexes Containing Palladium-Palladium Bonds"Coord. Chem. Rev.. 231. 207-228 (2002)

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

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Published: 2004-04-14  

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