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2013 Fiscal Year Final Research Report

Spectroscopic and thermodynamic studies on temperature-controlled biomolecules with water

Research Project

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Project/Area Number 23685005
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Physical chemistry
Research InstitutionKyushu University

Principal Investigator

SAKOTA Kenji  九州大学, 理学(系)研究科(研究院), 助教 (80346767)

Project Period (FY) 2011-04-01 – 2013-03-31
Keywordsクラスター / 赤外分光
Research Abstract

We applied infrared depletion spectroscopy for molecular clusters in the gas phase which was heated up from low to high temperature. Based on experimental and theoretical results, we got information on structural fluctuations of the hydrated clusters. One of these clusters shows the re-folding of side chain conformations and the structural fluctuations. There is a correlation between these dynamical processes. The entropic effect play an important role in the phenomena observed in this study.

  • Research Products

    (17 results)

All 2014 2013 2012 2011 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (9 results) Remarks (1 results)

  • [Journal Article] Weak hydrogen bonding motifs of ethylamino neurotransmitter radical cations in a hydrophobic environment : infrared spectra of tryptamine^+-(N_2)n clusters (n<6)2014

    • Author(s)
      Kenji Sakota, Markus Schutz, Matthias Schmies, Raphael Moritz, Aude Bouchet, Takamaza Ikeda, Yuuki Kouno, Hiroshi Sekiya, Otto Dopfer
    • Journal Title

      Phys. Chem. Chem. Phys

      Volume: 16 Pages: 3798-3806

    • DOI

      10.1039/C3CP54127D

    • Peer Reviewed
  • [Journal Article] Infrared spectroscopy of hydrated N-(2-phenylethyl)acetamide clusters : The electron-redistribution within the solute weakens local hydrogen bond2013

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

      Chem. Phys

      Volume: 419 Pages: 138-144

    • DOI

      10.1016/j.chemphys.2013.01.020

    • Peer Reviewed
  • [Journal Article] IR spectroscopy of monohydrated tryptamine cation : Rearrangement of the intermolecular hydrogen bond induced by photoionization2012

    • Author(s)
      Kenji Sakota, Yuuki Kouno, Satoshi Harada, Mitushiko Miyazaki, Masaaki Fujii, Hiroshi Sekiya
    • Journal Title

      J. Chem. Phys

      Volume: 137 Pages: 224311

    • DOI

      10.1063/1.4769878.

    • Peer Reviewed
  • [Journal Article] Photoionization-induced water migration in the hydrated trans-formanilide cluster cation revealed by gas-phase spectroscopy and ab initio molecular dynamics simulation2012

    • Author(s)
      Takamasa Ikeda, Kenji Sakota, Yukio Kawashima, Hiroshi Sekiya
    • Journal Title

      J. Phys. Chem. A

      Volume: 116 Pages: 3816-3823

    • DOI

      10.1021/jp301804w

    • Peer Reviewed
  • [Journal Article] Photon induced isomerization in the first excited state of the 7-azaindole-(H2O)3 cluster2011

    • Author(s)
      Gastavo Pino, Ivan Alata, Claude Dedonder, Christophe Jouvet, Kenji Sakota, Hiroshi 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

    • DOI

      10.1039/C0CP02836C

    • Peer Reviewed
  • [Journal Article] Photoionization-induced water migration in the amide group of trans-acetanilide-(H2O)1 in the gas phase2011

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

      J. Phys. Chem. A

      Volume: 115 Pages: 626-630

    • DOI

      10.1021/jp111737y

    • Peer Reviewed
  • [Presentation] Ionization-induced fluctuation of hydration structures probed by IR spectroscopy2013

    • Author(s)
      K. Sakota
    • Organizer
      15th Asian Chemical Congress
    • Place of Presentation
      Resorts World Sentosa, シンガポール
    • Year and Date
      20130800
  • [Presentation] Hydrogen-bond fluctuation in microsolvated biomolecule2013

    • Author(s)
      K. Sakota
    • Organizer
      Japan-Korea Symposium for Molecular Science
    • Place of Presentation
      北野プラザ六甲荘
    • Year and Date
      20130700
  • [Presentation] "Rearrangement and fluctuation of hydrogen bond in gaseous cluster cations" Asian International Symposium2013

    • Author(s)
      K. Sakota
    • Organizer
      Annual meeting of the International Symposium, Annual meeting of the Chemical Society of Japan
    • Place of Presentation
      立命館大学
    • Year and Date
      20130300
  • [Presentation] Rearrangement of hydrogen bond observed in hydrated molecular clusters2012

    • Author(s)
      K. Sakota
    • Organizer
      2012 Workshop on exploring the structures and dynamics of water at interfaces
    • Place of Presentation
      Institute of atomic and molecular sciences, 台湾
    • Year and Date
      20120600
  • [Presentation] Fluctuation of hydrogen bond in the gas phase : Large amplitude floating of a water2012

    • Author(s)
      K. Sakota
    • Organizer
      The 16th East Asian workshop on chemical dynamics
    • Place of Presentation
      National Tsing Hua University,台湾
    • Year and Date
      20120400
  • [Presentation] ゆらぐ反応場の理解を目指して2012

    • Author(s)
      迫田憲冶
    • Organizer
      次世代分子科学に向けた複合研究討論会
    • Place of Presentation
      分子科学研究所
    • Year and Date
      20120300
  • [Presentation] Spectroscopic study on the rearrangement of the water network at the hydrated amide group in the gas phase2011

    • Author(s)
      K. Sakota
    • Organizer
      The 14th Asian chemical congress
    • Place of Presentation
      Queen Sirikit National Convention Center, タイ
    • Year and Date
      20110900
  • [Presentation] Excited-state multiple-proton transfer on 7-azaindole clusters probed by frequency and time-domain spectroscopy2011

    • Author(s)
      K. Sakota
    • Organizer
      The 3th symposium on gas-phase reaction dynamics and laser spectroscopy
    • Place of Presentation
      Daejeon Convention Center, 韓国
    • Year and Date
      20110800
  • [Presentation] Rearrangement of hydrogen-bonded network observed at the hydrated amide group in the gas phase2011

    • Author(s)
      K. Sakota
    • Organizer
      The 15th East Asian workshop on chemical dynamics
    • Place of Presentation
      POSTECH, 韓国
    • Year and Date
      20110500
  • [Remarks]

    • URL

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

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Published: 2015-06-25  

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