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2010 Fiscal Year Annual Research Report

希土類元素を基盤とする新反応場の構築

Research Project

Project/Area Number 21225004
Research InstitutionThe Institute of Physical and Chemical Research

Principal Investigator

侯 召民  独立行政法人理化学研究所, 侯有機金属化学研究室, 主任研究員 (10261158)

Keywords希土類アルキル錯体 / シクロヘキサジエン / エチレン / 共重合 / カプロラクトン / スカンジウム / ヒドリド錯体 / シンジオタクチックポリスチレン
Research Abstract

本研究では、優れた物性や新機能を持つ高分子材料の合成や高効率な物質変換反応を目指して、希土類錯体の特異な性質を利用した高活性、高選択的な錯体触媒の開発を行っている。本年度は、まず様々な配位子を持つハーフサンドイッチ型スカンジウムジアルキル錯体を用いて、種々の重合及び共重合について検討した。その結果、(C_5Me_4SiMe_3)Sc(CH_2SiMe_3)_2(thf)と[Ph_3C][B(C_6F_5)_4]を組み合わせた触媒系がシクロヘキサジエンの重合反応に高い触媒活性を示すことを見いだし、高cis-1,4選択的なシクロヘキサジエンの重合に初めて成功した。またこの触媒系はシクロヘキサジエンとエチレンのランダム共重合反応にも高い触媒活性を示し、得られた共重合体中のシクロヘキサジエンユニットは、cis-1,4に制御されており、含有率は10-65mol%と幅広い範囲でモノマー組成比を制御できることが明らかとなった。さらに、(C_5Me_4C_6H_4OMe-2)Sc(CH_2SiMe_3)_2(thf)と[Ph_3C][B(C_6F_5)_4]を組み合わせた触媒系がスチレンとカプロラクトンの共重合反応に高い触媒活性を示すことを見いだした。得られた共重合体にはシンジオタクチックポリスチレン鎖が含まれており、これはスチレンがシンジオタクチック選択的にカプロラクトンとブロック共重合をした初めての例である。
一方、ピンサー型PNP配位子を有する希土類ジアルキル錯体に水素を反応させることにより、対応する三核希土類ヒドリド錯体[(Me-PNP^<iPr>)LnH_2]_3(Me-PNP^<iPr>={4-Me-2-(^iPr_2P)-C_6H_3}_2N);Ln=Y,Lu)やカチオン性二核ポリヒドリド錯体[(Me-PNP^<iPr>)_2Ln_2H_3(thf)_2][BPh_4]の合成に初めて成功した。

  • Research Products

    (48 results)

All 2011 2010 Other

All Journal Article (13 results) (of which Peer Reviewed: 13 results) Presentation (30 results) Remarks (4 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Tetra-, Penta-, and Hexanuclear Yttrium Hydride Clusters from Half-Sandwich Bis(aminobenzyl) Complexes Containing Various Cyclopentadienyl Ligands2011

    • Author(s)
      T.Shima
    • Journal Title

      Organometallics

      Volume: 30 Pages: 2513-2524

    • DOI

      10.1021/om1012055

    • Peer Reviewed
  • [Journal Article] Rare-Earth Polyhydride Complexes Bearing Bis(Phosphinophenyl) Amido Pincer Ligands2011

    • Author(s)
      J.Cheng
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 50 Pages: 1857-1860

    • Peer Reviewed
  • [Journal Article] Living 3,4-Polymerization of Isoprene by Cationic Rare Earth Metal Alkyl Complexes Bearing Iminoamido Ligands2011

    • Author(s)
      G.Du
    • Journal Title

      Organometallics

      Volume: 30 Pages: 160-170

    • Peer Reviewed
  • [Journal Article] Syntheses, Structures and Reactivities of Homometallic Rare Earth Metal Multimethyl Methylidene and Oxo Complexes2011

    • Author(s)
      J.Hong
    • Journal Title

      Chemistry-A European Journal

      Volume: 17 Pages: 2130-2137

    • Peer Reviewed
  • [Journal Article] Highly Cis-1,4-Selective Living Polymerization of 1,3-Conjugated Dienes and Copolymerization with ε-Caprolactone by Bis(phosphino) carbazolide Rare Earth Metal Complexes2011

    • Author(s)
      L.Wang
    • Journal Title

      Organometallics

      Volume: 30 Pages: 760-767

    • Peer Reviewed
  • [Journal Article] Synthesis, Structure and Efficient Electroluminescence of Heteroleptic Dipyridylamido/bis(pyridylphenyl) Iridium(III) Complex2011

    • Author(s)
      V.Rai
    • Journal Title

      Chemical Communications

      Volume: (in press)

    • Peer Reviewed
  • [Journal Article] Synthesis and Structures of the C_5Me_4SiMe_3-Supported Polyhydride Complexes over the Full Size-Range of the Rare Earth Series2011

    • Author(s)
      M.Nishiura
    • Journal Title

      Chemistry-A European Journal

      Volume: (in press)

    • Peer Reviewed
  • [Journal Article] Living Catalyzed-Chain-Growth Polymerization and Block Copolymerization of Isoprene by Rare-Earth Metal Allyl Precursors Bearing a Constrained-Geometry-Conformation Ligand2010

    • Author(s)
      Z.Jian
    • Journal Title

      Chemical Communications

      Pages: 3022-3024

    • Peer Reviewed
  • [Journal Article] Selective Ammonolysis of Half-Sandwich Rare-Earth Metal Dialkyl and Polyhydride Complexes : Synthesis of Polyamido Rare-Earth Complexes Having Novel Structures2010

    • Author(s)
      T.Shima
    • Journal Title

      Dalton Transactions

      Volume: 39 Pages: 6858-6863

    • Peer Reviewed
  • [Journal Article] Scandium-Catalyzed Regio- and Stereospecific Cis-1,4-Polymerization of 1,3-Cyclohexadiene and Copolymerization with Ethylene2010

    • Author(s)
      X.Li
    • Journal Title

      Macromolecules

      Volume: 43 Pages: 8904-8909

    • Peer Reviewed
  • [Journal Article] Copper-Catalyzed Direct Carboxylation of C-H Bonds with Carbon Dioxide2010

    • Author(s)
      L.Zhang
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 49 Pages: 8670-8673

    • Peer Reviewed
  • [Journal Article] Syndiospecific Living Copolymerization of Styrene with ε-Caprolactone by Scandium Catalysts2010

    • Author(s)
      L.Pan
    • Journal Title

      Macromolecules

      Volume: 43 Pages: 9591-9593

    • Peer Reviewed
  • [Journal Article] The Space between : Neutron Diffraction Studies Reveal Multiple Hydrogen Atom Coordination Numbers in an Anionic Dysprosium Hydride Cluster2010

    • Author(s)
      T.Stewart
    • Journal Title

      Inorganica Chimica Acta

      Volume: 363 Pages: 562-566

    • Peer Reviewed
  • [Presentation] 様々なCp配位子を持つイットリウム/モリブデン混合型多金属ヒドリドクラスターの構造と性質の制御2011

    • Author(s)
      島隆則
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      横浜
    • Year and Date
      2011-03-29
  • [Presentation] 希土類金属および6族遷移金属を有する新規異種金属多核ポリヒドリド錯体の合成と反応2011

    • Author(s)
      柳貴子
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      横浜
    • Year and Date
      2011-03-29
  • [Presentation] ハーフサンドイッチ型希土類触媒によるブタジエンの重合および共重合2011

    • Author(s)
      山本敦
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      横浜
    • Year and Date
      2011-03-29
  • [Presentation] アミジナート配位子を有する希土類ポリヒドリド錯体の合成と構造2011

    • Author(s)
      程建華
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      横浜
    • Year and Date
      2011-03-29
  • [Presentation] ボリル配位子を有する希土類ジアルキル錯体の合成、構造および反応性2011

    • Author(s)
      李世輝
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      横浜
    • Year and Date
      2011-03-29
  • [Presentation] ハーフサンドイッチ型4族遷移金属ポリヒドリドクラスターの合成と反応性2011

    • Author(s)
      胡少偉
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      横浜
    • Year and Date
      2011-03-29
  • [Presentation] 希土類触媒によるアニソール類の位置選択的C-H結合の官能基化2011

    • Author(s)
      小山田重蔵
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      横浜
    • Year and Date
      2011-03-29
  • [Presentation] ジピリジルアミド配位子を有するイリジウム錯体の合成とEL特性2011

    • Author(s)
      Virendra Kumar RAI
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      横浜
    • Year and Date
      2011-03-26
  • [Presentation] 銅触媒によるC-H結合と二酸化炭素との直接的カルボキシル化反応2011

    • Author(s)
      張亮
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      横浜
    • Year and Date
      2011-03-26
  • [Presentation] Novel Polymerization Catalysts and Hydride Clusters from Rare-Earth Dialkyls2011

    • Author(s)
      侯召民
    • Organizer
      The 1^<st> International Conference on MEXT Project of Integrated Research on Chemical Synthesis
    • Place of Presentation
      札幌
    • Year and Date
      2011-01-24
  • [Presentation] Rare-Earth Metal Polyhydride Complexes with non-Cyclopentadienyl Ligands2010

    • Author(s)
      侯召民
    • Organizer
      Pacifichem 2010
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2010-12-18
  • [Presentation] Stereospecific Copolymerization of Styrene and Isoprene with Polar Monomers by Rare-Earth Metal Catalysts2010

    • Author(s)
      侯召民
    • Organizer
      Pacifichem 2010
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2010-12-18
  • [Presentation] Scandium-Catalyzed Copolymerization of Non-Conjugated Dienes with Styrene and Ethylene2010

    • Author(s)
      西浦正芳
    • Organizer
      Pacifichem 2010
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2010-12-17
  • [Presentation] Yttrium Hydride Clusters Bearing Mono-(pentamethylcyclopentadienyl) Ligands2010

    • Author(s)
      島隆則
    • Organizer
      Pacifichem 2010
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2010-12-17
  • [Presentation] Hydrogen Addition and Release in Heterometallic Rare-Earth/d-Transition Metal Polyhydride Complexes2010

    • Author(s)
      侯召民
    • Organizer
      11^<th> International Symposium for Chinese Organic Chemists
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      2010-10-25
  • [Presentation] Novel Polymerization Catalysts from Rare-earth Dialkyls2010

    • Author(s)
      侯召民
    • Organizer
      Terrae Rarae 2010
    • Place of Presentation
      Bayreuth, Germany
    • Year and Date
      2010-10-08
  • [Presentation] Scandium-Catalyzed Random and Alternating Copolymerization of 1,6-Heptadiene with Isoprene2010

    • Author(s)
      西浦正芳
    • Organizer
      第60回錯体化学討論会
    • Place of Presentation
      大阪
    • Year and Date
      2010-09-27
  • [Presentation] Neutral and Cationic Rare earth Polyhydrides Supported by Bis(phosphinophenyl) Amido Ligands2010

    • Author(s)
      Jianhua Cheng
    • Organizer
      第60回錯体化学討論会
    • Place of Presentation
      大阪
    • Year and Date
      2010-09-27
  • [Presentation] Synthesis and Polymerization Activity of Binuclear Half-Sandwich Scandium Alkyl Complexes2010

    • Author(s)
      Shihui Li
    • Organizer
      第60回錯体化学討論会
    • Place of Presentation
      大阪
    • Year and Date
      2010-09-27
  • [Presentation] Novel Polymerization Catalysts based on Organo Rare-Earth Complexes2010

    • Author(s)
      侯召民
    • Organizer
      McGill-RIKEN Scientific Workshop on Nanotechnology and Green Chemistry
    • Place of Presentation
      Quebec, Canada
    • Year and Date
      2010-09-22
  • [Presentation] Ligand Influences on the Structure and Reactivity of Rare-Earth/Group 6 Heteromultimetallic Polyhydride Complexes2010

    • Author(s)
      島隆則
    • Organizer
      57^<th> Symposium on Organometallic Chemistry, Japan
    • Place of Presentation
      東京
    • Year and Date
      2010-09-17
  • [Presentation] Scandium-Catalyzed Regioselective Ortho C-H Bond Silylation of Anisoles2010

    • Author(s)
      小山田重蔵
    • Organizer
      57^<th> Symposium on Organometallic Chemistry, Japan
    • Place of Presentation
      東京
    • Year and Date
      2010-09-17
  • [Presentation] Scandium-Catalyzed Random and Alternating Copolymerization of 1,6-Heptadiene with Isoprene2010

    • Author(s)
      西浦正芳
    • Organizer
      第59回高分子討論会
    • Place of Presentation
      札幌
    • Year and Date
      2010-09-16
  • [Presentation] Scandium-Catalyzed Copolymerization of 1,5-Hexadiene with Styrene and Ethylene2010

    • Author(s)
      Fang Guo
    • Organizer
      第59回高分子討論会
    • Place of Presentation
      札幌
    • Year and Date
      2010-09-16
  • [Presentation] Scandium-Catalyzed Syndiospecific Block Copolymerization of Styrene with Isoprene and Caprolactone2010

    • Author(s)
      Li Pan
    • Organizer
      第59回高分子討論会
    • Place of Presentation
      札幌
    • Year and Date
      2010-09-16
  • [Presentation] Regioselective Carbometalation of Alkynes and Alkenes Catalyzed by Cationic Scandium2010

    • Author(s)
      瀧本真徳
    • Organizer
      24^<th> International Symposium on Organometallic Chemistry
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      2010-07-18
  • [Presentation] Recent Progress in the Chemistry and Application of Group 3 and Lanthanide Metal Complexes2010

    • Author(s)
      侯召民
    • Organizer
      Organometallic Chemistry Fundamental Advances and New Applications
    • Place of Presentation
      Newport, UK
    • Year and Date
      2010-07-15
  • [Presentation] Novel Polymerization Catalysts based on Cationic Rare-Earth Metal Alkyls2010

    • Author(s)
      侯召民
    • Organizer
      Inagural (1st) International Conference on Molecular & Functional Catalysis
    • Place of Presentation
      Singapore
    • Year and Date
      2010-07-12
  • [Presentation] Precise Control of Olefin Polymerization and Copolymerization by Organo Rare Earth Metal Catalysts2010

    • Author(s)
      侯召民
    • Organizer
      3^<rd> Blue Sky Conference on Catalytic Olefin Polymerization
    • Place of Presentation
      Napels, Italy
    • Year and Date
      2010-06-21
  • [Presentation] Alternative and Random Copolymerization of Isoprene with Ethylene by Cationic Scandium Alkyls Complexes2010

    • Author(s)
      西浦正芳
    • Organizer
      International Symposium on Polymer Chemistry
    • Place of Presentation
      Suzhou, China
    • Year and Date
      2010-06-05
  • [Remarks]

    • URL

      http://www.riken.jp/r-world/research/lab/wako/organometallic/index.html

  • [Remarks]

    • URL

      http://www.riken.jp/engn/r-world/research/lab/wako/organometallic/index.html

  • [Remarks]

    • URL

      http://www.riken.jp/lab-www/organometallic/index.html

  • [Remarks]

    • URL

      http://www.riken.jp/lab-www/organometallic/engl/index_e.html

  • [Patent(Industrial Property Rights)] 新規錯体化合物、及びその利用2011

    • Inventor(s)
      侯召民, 西浦正芳, V.Rai
    • Industrial Property Rights Holder
      (独)理化学研究所
    • Industrial Property Number
      特願2011-038483
    • Filing Date
      2011-02-24

URL: 

Published: 2012-07-19  

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