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2010 Fiscal Year Annual Research Report

分子クラスター内プロトン・電荷移動ダイナミクス―凝縮相との違いは何に起因するか

Planned

Project AreaMolecular Science for Supra Functional Systems ? Development of Advanced Methods for Exploring Elementary Process
Project/Area Number 19056005
Research InstitutionKyushu University

Principal Investigator

関谷 博  九州大学, 大学院・理学研究院, 教授 (90154658)

Co-Investigator(Kenkyū-buntansha) 大橋 和彦  九州大学, 大学院・理学研究院, 准教授 (80213825)
迫田 憲治  九州大学, 大学院・理学研究院, 助教 (80346767)
南部 伸孝  上智大学, 理工学部, 教授 (00249955)
Keywords高次系 / プロトン移動 / クラスター / 金属・溶媒和 / 赤外分光 / MDシミュレーション / 光異性化 / 量子化学計算
Research Abstract

平成22年度は、以下の2つの課題において新規な成果が得られた。
1.気相における励起状態多重プロトン移動ダイナミクス
超音速ジェット冷却された7-アザインドール・水の1:2クラスター[7AI(H_2O)_2]および1:3クラスター[7AI(H_2O)_3]について調査し、以下の新規な情報が得られた。(1)7AI(H_2O)_2の分散蛍光スペクトルを初めて観測し、励起状態3重プロトン移動が起こる明確な証拠を初めで得た。(2)7AI(H_2O)_2の振電バンドのS_1状態の蛍光寿命の測定から励起状態3重プロトン移動の振動状態選択性の確証を得た。(3)7AI(H_2O)_3のS_1状態の蛍光寿命が内部エネルギーの増加とともに急激に減少することを発見た。その原因が平面架橋構造から非平面環状構造への異性化によることを示した。(4)7AI(H_2O)_3のS_1状態の内部エネルギーが744cm^<-1>を越えると、非平面環状構造を経由した励起状態プロトン移動が生じる新規な反応経路を発見した。本研究は、水素結合ネットワークを介した多重プロトン移動研究における最先端の成果であり、当該分野への波及効果は大きい。
2.赤外光解離分光による遷移金属イオンの配位・溶媒和構造の解明
Ag^+(CH^3OH)_nおよびCo^+(NH_3)_nについて、赤外光解離スペクトルの測定および量子化学計算を行った。Ag^+(CH_3OH)_nにおけるAg^+の配位数は3であり、Ag^+周りの溶媒分子の配置は対称的である。一方、Co^+(NH_3)_nの配位構造は四面体型であり、軌道配向モデルによる予測と一致しない。これは、金属-配位子間反発の最小化が犠牲になっても、配位子-配位子間の反発が最小となる構造が選択されるためであると考えられる。本研究は遷移金属-配位子間の相互作用と構造の関係を分子レベルで解明した成果であり、溶液状態における分子間相互作用の基礎データとなる。

Research Products

(30 results)

All 2011 2010 Other

All Journal Article Presentation Remarks

  • [Journal Article] Photon induced isomerization in the first excited state of the 7-azaindole-(H_2O)_3 cluster2011

    • Author(s)
      G.A.Pino, I.Alata, C.Dedonder, C.Jouvet, K.Sakota, H.Sekiya
    • Journal Title

      Phys.Chem.Chem.Phys.

      Volume: 13 Pages: 6325-6331

    • DOI

      10.1039/c1cp00015b

    • Peer Reviewed
  • [Journal Article] Entropy-driven rearrangement of the water network at the hydrated amide group of the trans-formanilide-water cluster in the gas phase2011

    • Author(s)
      Kenji Sakota, Yuiga Shimazaki, Hiroshi Sekiya
    • Journal Title

      Phys.Chem.Chem.Phys.

      Volume: 13 Pages: 6411-6415

    • Peer Reviewed
  • [Journal Article] Excited-state triple-proton transfer in 7-azaindole(H_2O)_2 and reaction path studied by electronic spectroscopy in the gas phase and quantum chemistry calculations2010

    • Author(s)
      Kenji Sakota, Christophe Jouvet, Cloude Dedonder, Masaaki Fujii, Hiroshi Sekiya
    • Journal Title

      J.Phys.Chem.A

      Volume: 114 Pages: 11161-11166

    • Peer Reviewed
  • [Journal Article] Infrared photodissociation spectroscopy of Co^+(NH_3)_n and Ni^+(NH_3)_n : preference for tetrahedral or square-planar coordination2010

    • Author(s)
      Takashi Imaura, Kazuhiko Ohashi, 他6名
    • Journal Title

      Phys.Chem.Chem.Phys.

      Volume: 37 Pages: 11647-11656

    • Peer Reviewed
  • [Journal Article] Electronic spectra of two long-lived photoproducts : double-proton transfer in 7-hydroxyquinoline dimer in a 2-methyltetrahydro-furan glass matrix2010

    • Author(s)
      Yuko Nagai, Kenichiro Saita, K.Sakota, 他4名
    • Journal Title

      J.Phys.Chem.A

      Volume: 114 Pages: 5041-5048

    • Peer Reviewed
  • [Journal Article] Methanol solvation of the Ag^+ ion probed with infrared photodissociation spectroscopy of Ag^+(CH_3OH)_n(n=1-5)2010

    • Author(s)
      K.Furukawa, K.Ohashi, T.Imamura, J.Sasaki, K.Judai, N.Nishi, H.Sekiya
    • Journal Title

      Chem.Phys.Lett.

      Volume: 495 Pages: 8-13

    • Peer Reviewed
  • [Journal Article] Photoionization-induced water migration in the amide group of trans-acetanilide-(H_2O)_1 in the gas phase2010

    • Author(s)
      Kenji Sakota, Satoshi Harada, Yuiga Shimazaki, Hiroshi Sekiya
    • Journal Title

      J.Phys.Chem.A

      Volume: 115 Pages: 626-630

    • Peer Reviewed
  • [Journal Article] Future perspectives of nonadiabatic chemical dynamics2010

    • Author(s)
      Shinkoh Nanbu, Toshimasa Ishida, Hiroki Nakamura
    • Journal Title

      Chemical Science

      Volume: 1 Pages: 663-674

    • Peer Reviewed
  • [Journal Article] Chemiluminescence enhancement of 1,2-di[3,4,5-tri(3,4,5-trihydroxybenzoyloxy) benzoyloxy] benzene in the presence of quaternary ammonium ions2010

    • Author(s)
      Manabu Nakazono, Hiroki Agawa, Shinkoh Nanbu, Kiyoshi Zaitsu
    • Journal Title

      Luminescence

      Volume: 25 Pages: 360-363

    • Peer Reviewed
  • [Journal Article] Nonadiabatic ab initio dynamics of a model protonated Schiff base of 9-cis retinal2010

    • Author(s)
      W.C.Chung, Shinkoh Nanbu, Toshimasa Ishida
    • Journal Title

      Phys.Chem.Chem.Phys.

      Volume: 114 Pages: 819-8201

    • Peer Reviewed
  • [Journal Article] Fluorescence and chemiluminescence properties of indolylmaleimides : experimental and theoretical studies2010

    • Author(s)
      Manabu Nakazono, Ai Jinguji, Shinkoh Nanbu, 他9名
    • Journal Title

      J.Phys.Chem.A

      Volume: 12 Pages: 9783-9793

    • Peer Reviewed
  • [Journal Article] Control of chemical dynamics by lasers : Theoretical considerations2010

    • Author(s)
      Alexey D.Kondorskiy, Shinkoh Nanbu, Yoshiaki Teranishi, Hiroki Nakamura
    • Journal Title

      J.Phys.Chem.A

      Volume: 114 Pages: 6171-6187

    • Peer Reviewed
  • [Journal Article] Structural and relaxation effects in proton wire energetics : Model studies of the green fluorescent protein photocycle2010

    • Author(s)
      Q.Sun, S.Wang, H.Zhang, Z.Li, Shinko Nanbu, S.C.Smith, 他3名
    • Journal Title

      Aust.J.Chem

      Volume: 63 Pages: 363-370

    • Peer Reviewed
  • [Journal Article] First-pinciples study of atomic hydrogen interaction with fluorinated corannulene radical2010

    • Author(s)
      Hong Zhang, S.C.Smith, Shinko Nanbu, H.Nakamura
    • Journal Title

      Aust.J.Chem.

      Volume: 63 Pages: 371-378

    • Peer Reviewed
  • [Journal Article] Theoretical studies of absorption cross sections for the C^1B_2-X^1A_1 system of sulfur dioxide and isotope effects2010

    • Author(s)
      Ikuo Tokue, Shinkoh Nanbu
    • Journal Title

      J.Chem.Phys.

      Volume: 132 Pages: 024301(1-10)

    • Peer Reviewed
  • [Presentation] Infrared spectroscopy of ammonia-solvated transition-metal ions2010

    • Author(s)
      Kazuhiko Ohashi, Toshitaka Imamura, 他4名
    • Organizer
      PACIFICHEM 2010
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2010-12-17
  • [Presentation] Coordination and solvation of the gas-phase vanadium ion : infrared spectroscopy of V^+(NH_3)_n2010

    • Author(s)
      Nobuhiro Koga, Kazuhiko Ohashi, 他5名
    • Organizer
      PACIFICHEM 2010
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2010-12-17
  • [Presentation] Excited-state multiple-proton transfer in solvated 7-azaindole clusters in the gas phase2010

    • Author(s)
      Hiroshi Sekiya, Kenji Sakota
    • Organizer
      PACIFICHEM 2010
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2010-12-16
  • [Presentation] Photo-induced rearrangement of water network in hydrated clusters2010

    • Author(s)
      Hiroshi Sekiya
    • Organizer
      The 5th Taiwan-Japan Bilateral Symposium on Architecture of Functional Organic Molecules
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      2010-10-19
  • [Presentation] Formation of dual hydrogen-bonds in the N-H…C=O moiety in the indole-(N-methylacetamide)_1 cluster in the gas phase2010

    • Author(s)
      Kenji Sakota, Yuiga Shimazaki, Hiroshi Sekiya
    • Organizer
      PACIFICHEM 2010
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2010-10-17
  • [Presentation] Spectroscopic study on water migration in the hydrated acetanilide cluster2010

    • Author(s)
      Yuiga Shimazaki, Kenji Sakota, Satoshi Harada, Hiroshi Sekiya
    • Organizer
      PACIFICHEM 2010
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2010-10-17
  • [Presentation] Entropy-driven rearrangement of water network in hydrated amide group2010

    • Author(s)
      Kenji Sakota, Yuiga Shimazaki, Hiroshi Sekiya
    • Organizer
      International Symposium on New Horizons of Cluster Chemistry
    • Place of Presentation
      Kobe
    • Year and Date
      2010-10-09
  • [Presentation] Coordination and solvation of the gas-phase vanadium ion : infrared spectroscopy of V^+(NH_3)_n2010

    • Author(s)
      Nobuhiro Koga, Kazuhiko Ohashi, 他6名
    • Organizer
      New Horizons of Cluster Chemistry
    • Place of Presentation
      Kobe
    • Year and Date
      2010-10-09
  • [Presentation] Hydration structures of the Co^+ ion : IR photodissociation spectroscopy of Co^+(H_2O)_n2010

    • Author(s)
      Kazuki Furukawa, Kazuhiko Ohashi, 他5名
    • Organizer
      New Horizons of Cluster Chemistry
    • Place of Presentation
      Kobe
    • Year and Date
      2010-10-09
  • [Presentation] Photo-induced rearrangement of water network in hydrated amide groups2010

    • Author(s)
      Hiroshi Sekiya, Kenji Sakota
    • Organizer
      The Molecular and Ionic Cluster Conference 2010
    • Place of Presentation
      Tokamachi, Niigata
    • Year and Date
      2010-09-17
  • [Presentation] IR-dip spectroscopy of indole-(N-methylacetamide)_1 cluster : Identification of a dual hydrogen bond in the N-H…C=O moiety2010

    • Author(s)
      Kenji Sakota, Yuiga Shimazaki, Hiroshi Sekiya
    • Organizer
      The Molecular and Ionic clusters conference 2010
    • Place of Presentation
      Tokamachi, Niigata
    • Year and Date
      2010-09-07
  • [Presentation] Expected and unexpected coordination chemistry of transition-metal ions2010

    • Author(s)
      Kazuhiko Ohashi, Toshitaka Imamura, Nobuhiro Koga, Kazuki Furukawa, 他3名
    • Organizer
      The 2010 Molecular and Ionic Clusters Conference
    • Place of Presentation
      Tokamachi, Niigata
    • Year and Date
      2010-09-07
  • [Presentation] IR photodissociation spectra and coordination structures of hydrated cobalt ions2010

    • Author(s)
      Kazuki Furukawa, Kazuhiko Ohashi, 他5名
    • Organizer
      The 2010 Molecular and Ionic Clusters Conference
    • Place of Presentation
      Tokamachi, Niigata
    • Year and Date
      2010-09-07
  • [Presentation] Photo-induced migration of a water molecule in solvated acetanilide cluster2010

    • Author(s)
      Kenji Sakota, Hiroshi Sekiya
    • Organizer
      Photoionization-initiated migration of a water molecule in hydrated amide group probed by IR spectroscopy
    • Place of Presentation
      Nara
    • Year and Date
      2010-05-11
  • [Remarks]

    • URL

      http://www.scc.kyushu-u.ac.jp/Kouzou/str3j.html

URL: 

Published: 2012-07-19   Modified: 2013-07-30  

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