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2008 Fiscal Year Annual Research Report

高周期典型元素π電子系-遷移金属元素からなるd-π電子共役系の構築とその性質解明

Research Project

Project/Area Number 20036024
Research InstitutionKyoto University

Principal Investigator

笹森 貴裕  Kyoto University, 化学研究所, 助教 (70362390)

Keywords高周期14族元素 / 立体保護 / ジシレン / フェロセン / d-π電子糸 / 酸化還元 / MLCT遷移 / サイクリックボルタンメトリー
Research Abstract

本研究は、高周期14族および15族元素を含むπ電子系と遷移金属のd電子系からなる新規なd-・電子系の構築とその物性解明を行い、典型元素π電子系と遷移金属元素の相乗効果の解明を目的としている。本年度は、高周期14族元素π電子系と鉄原子を含むフェロセンに注目し、二つの フェロセニルユニットをジシレンユニット(Si=Si)で架橋した1, 2-bis(ferrocenyl)disileneについて検討を行った。本来ジシレン類は非常に反応活性で取り扱い困難である化学種であるため、立体保護基としてTip基(2, 4, 6-triisopropylphenyl基)を導入することとした。Tip(Fc)SiCl2(Fc=ferrocenyl)に対し、還元剤としてリチウムナフタレニドを作用させたところ、新規な1, 2-ビス(フェロセニル)ジシレン(E)-Tip(Fc)Si=Si(Fc)Tip(1)が室温でも安定な橙色結晶として得られた。各種スペクトル測定や線結晶構造解析により、ジシレン1の構造・物性を詳細に解明した。特にUV/visスペクトルにおいて、フェロセニル基のFe部位とSi=Si二重結合部位のMLCTに相当するバンドが観測されたことは興味深い。またサイクリックボルタンメトリーにより、1の酸化還元挙動を解明した結果、1は酸化側および還元側にそれぞれ二段階の可逆な酸化還元波を与えることが判った。これらの結果は、本来酸化還元には不安定なジシレン類が、フェロセニルユニットの相乗効果により安定な酸化還元系となることが判ったのみならず、二つのフェロセニルユニット間のSi=Siユニットを介した顕著なd-π共役が支持される結果であり興味深い。今後、これらの物性を詳細に解明し、高周期14族元素間π電子系と、9族遷移金属との相乗効果を系統的に解明する。

  • Research Products

    (36 results)

All 2009 2008 Other

All Journal Article (28 results) (of which Peer Reviewed: 26 results) Presentation (7 results) Remarks (1 results)

  • [Journal Article] How does non-covalent Se center dot center dot center dot Se=O interaction stabilize selennxides at naphthalene 1,8-nositions : structural and theoretical investigations2009

    • Author(s)
      S. Hayashi
    • Journal Title

      New J. Chem 33

      Pages: 196-206

    • Peer Reviewed
  • [Journal Article] A noncentrosymmetric crystal structure of a zwitterionic compound, pyridinium 5,7dihydro-5,7dioxo-6H-cyclopenta[b]pyridin-6-ylide, realized by weak hydrogen bonds2009

    • Author(s)
      J. Tsutsiimi
    • Journal Title

      J. Mol. Struct 920

      Pages: 52-60

    • Peer Reviewed
  • [Journal Article] Zwitterionic Corrole : Regioselective Nucleophilic Pyridination of a Doubly Linked Biscorrole2009

    • Author(s)
      S. Hiroto
    • Journal Title

      Angew. Chem. Int. Ed. 48

      Pages: 2388-2390

    • Peer Reviewed
  • [Journal Article] Reversible Polymorphic Crystalline Transition of a Push-Pull-Type Molecule : {4-[44, 5 Bis(methylsulfanyl)-1, 3-dithio1-2-ylidene]cyclohexa-2, 5-dien-1-ylidene}malononitrile (BMDCM)2009

    • Author(s)
      T. Hiramatsu
    • Journal Title

      J. Mol. Struct 922

      Pages: 30-34

    • Peer Reviewed
  • [Journal Article] Intramolecular Si-C and C-H Bond Activation in a Platinum Complex Leading to the Formation of the Platinacycles2009

    • Author(s)
      N. Tokitoh
    • Journal Title

      Heterocycles 79

      Pages: 311-318

    • Peer Reviewed
  • [Journal Article] A Unique Thermal Reaction of 9-Anthryl Diphosphene Leading to the Formation of a Triphosphirane Derivertive2009

    • Author(s)
      N. Tokitoh
    • Journal Title

      Phosphorus, Sulfur, and Silicon and the Related Elements 184

      Pages: 979-986

    • Peer Reviewed
  • [Journal Article] Oxidation and selenization reactions of a kinetically stabilized 1,2-bisferrocenyldisilene2009

    • Author(s)
      N. Tokitoh
    • Journal Title

      Phosphorus, Sulfur, and Silicon and the Related Elements

    • Peer Reviewed
  • [Journal Article] Synthesis and Properties of Stable 1,2-Bis(metallocenyl)disilenes : Novel d-π Conjugated Systems with an Si=Si Double Bond2009

    • Author(s)
      A. Yuasa
    • Journal Title

      Bull. Chem. Soc. Jpn.

    • Peer Reviewed
  • [Journal Article] Reduction of a kinetically stabilized silabenzene leading to the formation of the corresponding anion radical species2008

    • Author(s)
      T. Matsumoto
    • Journal Title

      Organometallics 27

      Pages: 305-308

    • Peer Reviewed
  • [Journal Article] Synthesis of alkali metal salts of borylsilyl anions utilizing highly crowded silylboranes and their properties2008

    • Author(s)
      T. Kajiwara
    • Journal Title

      Organometallics 27

      Pages: 880-893

    • Peer Reviewed
  • [Journal Article] Generation, isolation, and reactivity of a kinetically stabilized diphosphene anion radical2008

    • Author(s)
      N. Nagahora
    • Journal Title

      J. Organomet. Chem 693

      Pages: 625-632

    • Peer Reviewed
  • [Journal Article] Synthesis and characterization of the first stable stannanetelone2008

    • Author(s)
      N. Tokitoh
    • Journal Title

      Phosphorus, Sulfur, and Silicon and the Related Elements 183

      Pages: 948-955

  • [Journal Article] Selenization and tellurization reactions of kinetically stabilized dipnictenes2008

    • Author(s)
      T. Sasamori
    • Journal Title

      Phosphorus, Sulfur, and Silicon and the Related Elements 183

      Pages: 998-1002

  • [Journal Article] Synthesis of a 1-hydrosilene stable in solution and its unique properties2008

    • Author(s)
      S. Ozaki
    • Journal Title

      Organometallics 27

      Pages: 2163-2165

    • Peer Reviewed
  • [Journal Article] Chalcogenation reactions of a stable ferrocenyldiphosphene : Formation of thia-, selena, and telluradiphosphiranes2008

    • Author(s)
      N. Nagahora
    • Journal Title

      Heteroatom Chem 19

      Pages: 443-449

    • Peer Reviewed
  • [Journal Article] 1, 2-bis(ferrocenyl)disilene : A multistep redox system with an Si=Si double bond2008

    • Author(s)
      T. Sasamori
    • Journal Title

      Organometallics 27

      Pages: 3325-3327

    • Peer Reviewed
  • [Journal Article] Synthesis and properties of stable 2-metallanaphthalenes of heavier group 14 elements2008

    • Author(s)
      Y. Mizuhata
    • Journal Title

      Dalton Trans

      Pages: 4409-4418

    • Peer Reviewed
  • [Journal Article] Fine structures of 1-(arylethynylselanyl)naphthalenes : Characteristic features brought by the ethynylselanyl group2008

    • Author(s)
      K. Yamane
    • Journal Title

      Polyhedron 27

      Pages: 2478-2486

    • Peer Reviewed
  • [Journal Article] A ferrocenyldiphosphene-platinum complex : Structural features and theoretical calculations2008

    • Author(s)
      N. Nagahora
    • Journal Title

      Organometallics 27

      Pages: 4265-4268

    • Peer Reviewed
  • [Journal Article] The chemistry of stable silabenzenes2008

    • Author(s)
      N. Tokitoh
    • Journal Title

      I. Chin. Chem. Soc. 55

      Pages: 487-507

    • Peer Reviewed
  • [Journal Article] Synthesis and reactions of a stable 1,2-diaryll,2-dibromodisilene : A precursor for substituted disilenes and a 1,2-diaryldisilyne2008

    • Author(s)
      T. Sasamori
    • Journal Title

      J. Am. Chem. Soc. 130

      Pages: 13856-13857

    • Peer Reviewed
  • [Journal Article] Extended hypervalent E'…E-E…E' 4c-6e (E, E'=Se, S) interactions : structure, stability and reactivity of 1-(8-PhE'C_10H_6)EE(C_10H_6E'Ph-8')-1'2008

    • Author(s)
      W. Nakanishi
    • Journal Title

      New J. Chem 32

      Pages: 1881-1889

    • Peer Reviewed
  • [Journal Article] Fine structures of 8-G-1-(arylethynylselanyl)naphthalenes (G=H, Cl, Br) : Factors to control the linear alignment of five G...Se-C C-C-Ar atoms in crystals and the behavior in solution2008

    • Author(s)
      K. Yamane
    • Journal Title

      Polyhedron 27

      Pages: 3557-3566

    • Peer Reviewed
  • [Journal Article] Synthesis of Stable cis -Dichloro- and cis -Dimethylplatinum(II) Complexes Bearing Bulky Primary Phosphines and Introduction of an Alkyl Group on the Primary Phosphine Ligand2008

    • Author(s)
      T. Sasamori
    • Journal Title

      Chem. Lett 37

      Pages: 1192-1193

    • Peer Reviewed
  • [Journal Article] Unexpected Cyclization Reaction of an Overcrowded 2-Phosphinophenylmethanimine Derivative Leading to the Formation of the First Stable 2-Phospha-2H-Isoindole Derivative2008

    • Author(s)
      N. Tokitoh
    • Journal Title

      Heterocycles 76

      Pages: 981-987

    • Peer Reviewed
  • [Journal Article] Three-component cascade energy transfer using oligonaphthalene skeletons2008

    • Author(s)
      K. Tsubaki
    • Journal Title

      J. Org. Chem 73

      Pages: 4279-4282

    • Peer Reviewed
  • [Journal Article] Synthesis, Structure and Reactions of a Trianion Equivalent, Trilithiostannane2008

    • Author(s)
      T. Tajima
    • Journal Title

      Chem. Commun

      Pages: 6495-6497

    • Peer Reviewed
  • [Journal Article] Micro-Raman Spectroscopy on Pentacene Thin-Film Transistors2008

    • Author(s)
      Y. Hosoi
    • Journal Title

      Mol. Cryst. Liq. Cryst 491

      Pages: 317-323

    • Peer Reviewed
  • [Presentation] Synthesis and Electrochemical Properties of 1,2-Bis(metallocenyl)disilene2008

    • Author(s)
      N. Tokitoh
    • Organizer
      The 5th International Symposium on Integrated Synthesis
    • Place of Presentation
      Kobe, Japan
    • Year and Date
      2008-09-06
  • [Presentation] 高周期典型元素の多重結合化合物2008

    • Author(s)
      笹森貴裕
    • Organizer
      愛媛大学応用化学科セミナー
    • Place of Presentation
      松山
    • Year and Date
      2008-08-01
  • [Presentation] Synthesis and Properties of Transition-metal Complexes with a Novel β-Ketophosphenato Ligand2008

    • Author(s)
      N. Tokitoh
    • Organizer
      The 23rd International Conference on Organometallic Chemistry
    • Place of Presentation
      Rennes, France
    • Year and Date
      2008-07-17
  • [Presentation] Synthesis and Characterization of 1-Hydrosilene2008

    • Author(s)
      N. Tokitoh
    • Organizer
      The 15th International Symposium on Organosilicon Chemistry
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2008-06-03
  • [Presentation] Structure, Properties, and Reactivities of the First Stable 1,2-Bis(ferrocenyl)disilene2008

    • Author(s)
      N. Tokitoh
    • Organizer
      The 15th International Symposium on Organosilicon Chemistry
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2008-06-03
  • [Presentation] Synthesis and Properties of Kinetically Stabilized 1,2-Diaryl-1,2-dibromodisilene and Diaryldisilyne2008

    • Author(s)
      N. Tokitoh
    • Organizer
      The 15th International Symposium on Organosilicon Chemistry
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2008-06-02
  • [Presentation] Redox Behavior and Coordination Chemistry of Kinetically Stabilized Silaaromatics and Related Compounds2008

    • Author(s)
      N. Tokitoh
    • Organizer
      The 15th International Symposium on Organosilicon Chemistry
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2008-06-02
  • [Remarks]

    • URL

      http://boc.kuicr.kyoto-u.ac.jp/~sasamori/www/

URL: 

Published: 2010-06-11   Modified: 2016-04-21  

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