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溶液の非平衡過程の分子論的アプロ-チ・反応活性種の構造

Research Project

Project/Area Number 03231105
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Research InstitutionOkazaki National Research Institutes

Principal Investigator

大瀧 仁志  岡崎国立共同研究機構, 分子科学研究所, 教授 (80022549)

Co-Investigator(Kenkyū-buntansha) 佐々木 陽一  北海道大学, 理学部, 教授 (30004500)
山口 敏男  福岡大学, 理学部, 助教授 (70158111)
舟橋 重信  名古屋大学, 理学部, 教授 (30022700)
Project Period (FY) 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥22,000,000 (Direct Cost: ¥22,000,000)
Fiscal Year 1991: ¥22,000,000 (Direct Cost: ¥22,000,000)
Keywords反応活性種 / 反応中間体 / 迅速EXAFS / 多核錯体 / 溶液X線回折 / 過冷却液体 / ストップド・フロ-
Research Abstract

本研究では、計画班員4名が分担・協力して反応活性種並びに反応中間体の構造について研究を進めた。さらに公募班員とも積極的に協同研究を展開した。
大瀧・舟橋は、試料セルの窓材に窒化ホウ素を用いることによって、数百回のフロ-積算に耐えるセルの開発に成功し、これを付置した実験室スケ-ルの迅速EXAFS測定装置を開発した。そこで田端が研究を進めているメタロポルフィリンの金属イオンの置換反応時に存在すると推定されるヘテロ二核中間体の構造を本装置を用いて直接決定するため、平衡時に存在する各種のメタロポルフィリンのEXAFSスペクトルを測定した。舟橋は世界で初の高圧ストップト・フロ-NMR測定装置を開発した。またポルフィリン錯体の生成反応においては、ポルフィリン環の変形した活性種が存在することや、Ni(II)イオンのエチレンジアミン溶媒交換反応では、2分子のエチレンジアミンが単座で配位した6配位の中間体が存在することを推定した。
佐々木は金属クラスタ-錯体の生成過程中に存在する中間体の役割を解明するため、2個のルテニウムイオンを含む新しい三核金属錯体Ru_2M(M=Mg,Mn,Fe)を合成し、ルテニウム二核錯体が三核錯体に変化する際の反応中間体の構造に関する知見を得た。山口はイメ-ジング・プレ-トを用いた読み取り装置を設置することにより、極めて短時間で液体・溶液のX線回折デ-タを得ることができる迅速X線回折装置を完成した。また、新しく開発したin‐situ電気化学セルを用いて、蛍光EXAFS法により、光化学SPIIのモデルとしてのマンガン(III,IV)化合物の構造を明らかにした。
上記の研究は、公募班員とも協力して進めることができ、本年度の研究は、当初の計画通り遂行できた。

Report

(1 results)
  • 1991 Annual Research Report
  • Research Products

    (34 results)

All Other

All Publications (34 results)

  • [Publications] K.Waizumi: "Structure of MgCl_2.RbCl.6H_2O." Acta.Crystallogr.C47. 251-254 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] N.Fukushima: "Dissolution of Alkali Fluoride and Chloride Crystals in Water Studied by Molecular Dynamics Simulations." Z.Naturforsch. 46a. 193-202 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Waizumi: "X‐ray Diffraction Studies on Ternary MgCl_2‐KCl‐H_2O and MgCl_2‐CsCl‐H_2O Solutions Saturated with the Corresponding Double Salts." Z.Naturforsch. 46a. 307-312 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Wakita: "Structure Determination of Zinc lodide Complexes Formed in Aqueous Solutions." J.Solution Chem.20. 643-668 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] G.Johansson: "Coordination around Thorium(IV)in Aqueous Perchlorate,Chloride and Nitrate Solutions." J.Solution Chrm.20. 775-792 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] G.Johansson: "Structure of the Solvated Metal lons in Nitrate and Chloride Solutions of Erbium(III)and Yttrium(III)in Dimethyl Sulfoxide." J.Solution Chem.20. 859-874 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Waizumi: "Crystallographic Investigations on [Mg(H_2O)_6]XCl_3 Double Salts(X^+=K^+,Rb^+,Cs^+,NH_4^+):Crystal Structure of [Mg(H_2O)_6]CaCl_3." Amer.Mineralogist. 76. 1884-1888 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Ohtaki: "Nucleation Processes of NaCl and CsF Crystals from Aqueous Solutions Studied by Molecular Dynamics Simulations." Pure & Appl.Chem.63. 1743-1748 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Suzuki: "Structures of Zinc(II)and Copper(II)Chloride N,N‐Dimethylformamide Solvates" Acta Crystallogr.C47. 1838-1842 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Y.Tamura: "An MD Simulation of Concented Aqueous Solutions of Caesium Iodide." Z.Naturforsch.46a. (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Ohtaki: "A Structural Study on Saturated Aqueous Solutions of Some Alkali Halides‐by X‐Ray Diffraction." J.Solution Chem.210. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Ohtaki: "An Attempt to Parameterize the Structuredness of Solvates." J.Solution Chem.21. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Waizumi: "X‐ray Strucrural Studies on FeBr_2・4H_2O,CoBr_2・4H_2O,NiCl_2・4H_2O,CuBr_2・4H_2O.Cis/trans Selectivity in Transition Metal(II)Dihalide Tetrahydrates." Inoeg.Chim.Acta.

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Ohtaki: "Structure of Divalent Transition‐Metal Complexes at Consecutive Steps of Interaction with Halide and Thiocyanate lons in Solution." J.Indian Chem.Soc.

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Waizumi: "Structure of 2RbCl.CuCl_2.2H_2O." Acta Crystallogr.

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Yamaguchi: "Pulsed Neutron Diffraction Studies on Lanthanide(III)Hydration in Aqueous Perchlorate Solutions." Z.Naturforsh.46a. 84-88 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Ichikawa: "Neutron‐diffraction Investigation of the Intramolecular Structures of a Water Molecule in the Liquid State at High Temperatures." Mol.Phys.73. 79-86 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Takamuku: "X‐ray Diffraction and Raman Spectroscopic Studies on Supercooled and Glassy Aqueous Zinc(II)lodide Solutions." J.Phys.Chem.95. 10098-10103 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Oki: "Intermediate Valences of Ce and Electrical Resistivity Chenges of Pd‐Ce Intermetallic Compunds." J.Appl.Phys.69. 4693-4695 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Takamuku: "Raman Spectroscopic and X‐ray Diffraction Studies on Concentrated Aqueous Zinc(II)Bromide Solutions at High Temperatures." Z.Naturforsch.47a. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Nakata: "Kinetic Studies on the Teminal Ligand Substitution Reactions of Acetate‐Bridged Trinuclear Molybdenum and Tungsten Cluster Complexes,[Mo_3(μ_3‐CCH_3)(μ3‐O)(μ‐CH_3COO)_6(L)_3(L=H_2O or Pyridine)and [W_3(μ_3‐O)(μ‐CH_3COO)_6(H_2O_3]^<2+>." Inorg.Chem.30. 1575-1579 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Y.Sasaki: "Circular Dichroism Spectrophotometric Study of [Mo_2(μ‐O)_2(O)_2(R‐cysteinato)2]^<2-> in Aqueous Micellar Solutions." Inorg.Chem.Acta.183. 15-19 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 佐々木 陽一: "金属クラスタ-錯体の原子価状態と構造および反応性。" 表面. 29. 220-230 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Kato: "Preparation and Properties of Oxo‐centered Trinuclear Chromium(III)Complexes with Bridging Optically Active Amino Acids,[Cr(μ_3‐O)(μ‐O,O'‐amino‐acid)_6(H_2O)_3]^<7+>." Bull.Chem.Soc.Jpn.64. 3463-3465 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Ochi: "Rapid Unidentate‐Chelate Equilibrium of Acetate Ligands on the Ruthenium‐Analog of the Hemerythrin Active Center and Crystal Structure of [Ru_2(μ‐CH_3COO)_2(μ‐O)(CH_3COO)_2(H_2O)(CH_3OH)(P(C_6H_5)_3)_2]・having Unidentate Acetates" Chem.Lett.2019-2022 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Y.Sasaki: "Prepation,Structure and Properties of the Bis(μ‐acetato)(μ‐oxo)Ruthenium(III)Dimer,[Ru_2(μ‐CH_3COO)_2(μ‐O)(pridine)_6]^<2+>and [Ru_2(μ‐CH_3COO)_2(μ‐O)(2,2'‐bipyridine)_2(pridine)_2]^<2+>." Inorg.Chem.30. 4903-4908 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Kobayashi: "Magnetic Properties of Oxygen Centered Trinuclear Ru(III)and Rh(III)Complexes." Bull.Chem.Soc.Jpn.65. 198-202 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] D.Akashi: "Preparation and Electro‐chemical Response of Poly (4‐vinylpyridine)‐Coordinated Oxo‐Acetate Triruthenium Cluster Film." Chem.Lett.143-146 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Ohtaki: "Local Structure of Macromolecule‐Metal Complexes in Solutions,in"Macromolecular Complexes"." VCH,New York, 35 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 大瀧 仁志: "食塩結晶の溶解と核生成を視る。" 数理科学, 5 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 大瀧 仁志: "化学の本を考える。" 化学, 7 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 脇田 久伸: "水の構造と物性。" 繊維と工業,

    • Related Report
      1991 Annual Research Report
  • [Publications] 舟橋 重信: "溶液内反応。" ぶんせき, 2 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 石原 浩二: "溶液内迅速反応の測定と解折。" ぶんせき, 9 (1991)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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