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Synthesis and photo-catalytic carbon dioxide reduction property of dinuclear rhenium (I) complexes

Research Project

Project/Area Number 17550051
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Inorganic chemistry
Research InstitutionHirosaki University

Principal Investigator

KITA Shouichi  Hirosaki University, Hirosaki University, Graduate School of Science and Technology, Associate Professor (80142834)

Co-Investigator(Kenkyū-buntansha) MIYAMOTO Ryo  Hirosaki University, Graduate School of Science and Technology, Assistant Professor (20250590)
須藤 進  弘前大学, 理工学部, 教授 (60003513)
Project Period (FY) 2005 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥3,850,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2006: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2005: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsPhotoreduction of Carbon Dioxide / Photocatalyst / Polynuclear Complex / Reaction Intermediate / DFT calculations / レニウム(I)トリカルボニル / 複核錯体 / 国際情報交換 / アメリカ合衆国
Research Abstract

It is known that rhenium (I) tricarbonyl di-imine complexes works as the photocatalyst which selectively reduces the carbon dioxide to carbon monoxide under the existence of weak reducing agent. The polynuclear metal complexes have attracted interest as two electrons reduction catalyst of such reaction.
1. Two novel ligand, bdpbiaH_2=1,8-bis(dipyrido-[2,3-e:2',3'-g]-1H-benzoimidazole)anthracene and bdpbibH_2=1,8-bis(dipyrido-[2,3-e:2'',3''-g]-1H-benzoimidazole)benzene which could closely combine two metal core to each other, was designed, and rhenium (I) or ruthenium (II) binuclear complex were synthesized using these bridging ligand. These complexes may be able to activate the small molecule like carbon dioxide in two metal core. The ligands and complexes were identified by elemental analysis and MALDI-TOF mass spectrometric analysis.
2. Both ligands showed the intense fluorescence in fluid solution at ambient temperature. BdpbibH2 ligand showed the broad emission which seemed to be the intramolecular excimer emission at room temperature in the long wavelength region. The UV-visible absorption and the emission spectra, and the electrochemistry measurement of binuclear metal complexes show that the only weak interactions work between two metal centers.
3. The geometry optimization calculations by the density functional theory (DFT) show that the distances between two metal.cores (7~11A) are sufficient in order to insert molecules such as the carbon dioxide. But the synergic effect of the photo catalytic reduction abilities of carbon dioxide could not be observed.
The part of the result was reported in 20th Conference on Photochemistry and Photophysics of Coordination Compound, and 57th Annual Meetings of Japan Society of Coordination Chemistry.

Report

(4 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (6 results)

All 2007 2005

All Presentation (6 results)

  • [Presentation] アントラセンを結合した配位子のRu(II)およびRe(I)錯体の電子状態と発光特性2007

    • Author(s)
      山田一人・古川雄樹・喜多昭一
    • Organizer
      第57回錯体化学討論会
    • Place of Presentation
      名古屋市
    • Year and Date
      2007-09-27
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] Electronic states and luminescence properties of the Ru(II) and Re(I) complexs of the ligand with anthracene2007

    • Author(s)
      Kazuto Yamada, Yuki Furukawa, Shouichi Kita
    • Organizer
      57th Annual Meetings of Japan Society of Coordination Chemistry
    • Place of Presentation
      Nagoya, Japan
    • Year and Date
      2007-09-27
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] アントラセンで架橋したレニウム(I)トリカルボニルジイミン錯体の合成とその性質2007

    • Author(s)
      櫛引陽介・喜多昭一
    • Organizer
      第20回配位化合物の光化学討論会
    • Place of Presentation
      神戸市
    • Year and Date
      2007-08-08
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] Synthesis and Characterization of the dinuclear rhenium (I) tricarbonyl di-imine complex bridgeing by anthracene moiety2007

    • Author(s)
      Yousuke Kushibiki, Shouichi Kita
    • Organizer
      20th Conference on Photochemistry and Photophysics of Coordination Compound
    • Place of Presentation
      Kobe, Japan
    • Year and Date
      2007-08-08
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Synthesis, Characterization, and Interaction with Rhodium Trichloride of Imidazole-Containing Bridging Ligands Dinuclear Ruthum Trichloride of Imidazole-Containing Bridging Lienium (II) Complexes.2005

    • Author(s)
      Shouichi Kita, Takashi Mitsuhashi and Yuji Yoshida
    • Organizer
      International Chemical Congress of Pacific Basin Societies
    • Place of Presentation
      Honolulu, Hawaii, USA
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Synthesis, Characteriation, and Interaction with Rhodium Trichloride of Imidazole-Containing Bridging Ligands Dinuclear Ruthenium (II) Complexes. (INOR 0370)2005

    • Author(s)
      Shouichi Kita, Takashi Mitsuhashi, and Yuji Yoshida
    • Organizer
      International Chemical Congress of Pacific Basin Societies
    • Place of Presentation
      Honolulu, Hawaii, USA
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary

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Published: 2005-04-01   Modified: 2016-04-21  

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