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

Research on the Synthesis and Properties of Polysilanes Containing Conjugated Si-Si Double Bonds

Research Project

Project/Area Number 01470019
Research Category

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

Allocation TypeSingle-year Grants
Research Field 有機化学一般
Research InstitutionGunma University

Principal Investigator

MATSUMOTO Hideyuki  Gunma University, Faculty of Engineering, Professor, 工学部, 教授 (90008467)

Project Period (FY) 1989 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥6,400,000 (Direct Cost: ¥6,400,000)
Fiscal Year 1990: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1989: ¥4,500,000 (Direct Cost: ¥4,500,000)
KeywordsPolysilanes / Poly (silysilylne) / Electrical Properties / SiーSi Double bonds / ケイ素-ケイ素二重結合 / 合成 / 光反応 / オクタシラキュバン
Research Abstract

(a) Condensation of 1, 1, 1-tribormo-2, 2, 2-triethyldisilane with sodium afforded ploy (triethylsilylsilyne) (1) in 70% yield. Gel permeation chromatography of 1 indicated a Mw=1400 versus polystyrene,in a single envelope with polydispersity of 1.04. Characterization was achieved by ^<29>Si, ^<13>C, and ^1H NMR spectrocopy, and infrared spectrocopy. The ^<29>Si NMR spectrum of 1 exhibited broad resonance centered at +150 ppm, which was assigned to the sp^2 Si atoms of the oligomer backbone.
(b) Electrochemical properties of iodine-doped sample of 1 was measured. The completely doped sample was obtained as black precipitate from the dichloromethane solution of 1 and iodine.
The sample showed a metallic behavior, first observed for organosilicon compounds, above 170 K and became semiconducting eith an activation energy, Ea, of 0.3 meV.
(c) Novel unsaturated cyclopolysilanes such as tetrasilacyclobutene and octasilacycloocta-1, 5-diene were generated photochemically from dodecaisopropyltricyclo [4.2.0.0^<2, 5>] octasilane (2). When a solution of 2 and methanol in cyclohexane was irradiated for 3 min at room temperature, with a high-pressure mercury lamp, 2 was cleanly photoalyzed to give 1-methoxy-1, 2, 3, 3, 4, 4-hexaisopropylcyclotetrasilane exclusively. The formation of the cycloterasilane is indicative of the formation of a tetetrasilacyclobutene intermediate, which could be trapped by methanol. Similar photolysis of the syn isomer was found to afford lead a dodecaisopropyloctasilacycloocta-1, 5-diene intermediate, which could be trapped by methanol.

Report

(3 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] H.Matsumoto,K.Kanuma,Y.Nagai,andM.Goto: "MolecularStructureandPhotochemicalBehaviorofantiDodecaisopropyltricyclo[4.2.0.0.^<2.5>]octasilane" Chem.Lett.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H.Matsumoto,M.MotegiY.Yagihashi,Y.Nagai,andM.Goto: "SynthesisandMolecularStructureofcisーcisーtransー1,2,3,4ーTetrakis(bis(trimethylsilyl)methyl]cyclotetrasllane" Bull.Chem.Soc.Jpn.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H.Matsumoto,Y.Yagihashi,A.Sakamoto,Y.Nagai,andM.Goto: "MolecularStructureandConformationalAnalysisofaPersilylcyclotetrasilane,Octakis(ethyldimethylsilyl)cyclotetrasilane" Chem.Left.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H.Matsumoto,K.Higuchi,Y.Nagai,andR.Akaba: "ElectrochemicalPropertiesofanOctasilacubane,Octakis(tーbutyldimethylsilyl)octasilacubane" Chem.Left.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H.Matsumoto,K.Higuchi,Y.Nagai,andM.Goto: "OxidationofOctakis(tーbutyldimethylsilyl)octasilacubanewithmーChloroperbenzoicAcid" Organometallics.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H.Matsumoto,A.Matsushima,K.Higuchi,Y.Nagai,K.Kikuchi,I.Ikemoto: "SythesisandElectricPropertiesofaPolysilylne,Poly(Triethylsilylyne)" Appl.Organometallics.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Y.Nagai,H.Watanabe,andH.Matsumoto: "SiliconーBasedPolymerScienceSynthesisandPropertiesofSiliconーBranchedOrganosiliconPolymers" Am.Chem.Soc.,801(505-513 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H. Matsumoto,: "Synthesis and Properties of Sillcon-Branched Organosilicon Polymers" Silicon-Based Polymer Science, American Chemical Society,. 505-513 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H. Shizuka, H. Matsumoto,: "Photolysis of Cyclotetra-Silanes" J. Chem. Soc., Chem. Commun.,. 2369-2379 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H. Matsumoto,: Kodansha,. Silicon-Branched Polysilanes, 303-326 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] H.Matsumoto,K.Kanuma,Y.Nagai,and M.Goto: "Molecular Stucture and Photochemical Behavior of antiーDodecaisopropyltricyclo[4.2.0.0^<2,5>]octasilane" Chem.Lett.

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Matsumoto,M.Motegi,Y.Yagihashi,Y.Nagai,and M.Goto: "Synthesis and Molecular Structure of cisーcisーtransー1,2,3,4ーTetrakis(bis(trimethylsilyl)methyl〕cyclotetraーsilane" Bull.Chem.Soc.Jpn.

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Matsumoto,Y.Yagihashi A.Sakamoto,Y.Nagai,and M.Goto: "Molecular Structure and Conformational Analysis of a Persilylcyclotetrasilane,Octakis(ethyldimethylsilyl)ーcyclotetrasilane" Chem.Lett.

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Matsumoto,K.Higuchi,Y.Nagai,and R.Akaba: "Electrochemical Properties of an Octasilacubane,Octakis(tーbutyldimethylsilyl)octasilacubane" Chem.Lett.

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Matsumoto,K.Higuchi,Y.Nagai,and M.Goto: "Oxidation of Octakis(tーbutyldimethylsilyl)octasilacubane with mーChloroperbenzoic Acid" Organometallics.

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Matsumoto,A.Matsushima,K.Higuchi,Y.Nagai,K.Kikuchi,I.Ikemoto: "Synthesis and Electric Properties of a Polysilylne,Polyー(Triethylsilylsilyne)" Appl.Organometallics.

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Nagai,H.Watanabe,and H.Matsumoto: "SiliconーBased Polymer Science Synthesis and Properties of SiliconーBranched Organosilicon Polymers" Am.Chem.Soc.,801 (505-513) (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Matsumoto: "The First Octasilacubane System:Synthesis of Octakis(t-butyldimethylsilyl)pentacyclo〕4.2.0.0^<2,5>.0^<3,8>.0^<4,7>〕-octasilane" J.Chem.Soc.Chem.commun.1083-1084 (1988)

    • Related Report
      1989 Annual Research Report
  • [Publications] H.Shizuka,H.Matsumoto: "Photolysis of Cyclotetrasilane,Remarkable Dependence on Molecular Structure" J.Chem.Soc.Faraday Trans.I. 85. 2369-2379 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] H.Matsumoto: "Silicon-Branched Polysilanes in"New Aspects of Organic Chemistry I"(分担)" Kodansha-VCH, 565 (1989)

    • Related Report
      1989 Annual Research Report

URL: 

Published: 1989-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi