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1994 Fiscal Year Final Research Report Summary

Excited-State Electron Transfer in Size-Selected Moleclar Cluster

Research Project

Project/Area Number 05453018
Research Category

Grant-in-Aid for General Scientific Research (B)

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

Principal Investigator

ITOH Michiya  Kanazawa University, 薬学部, 教授 (30012610)

Co-Investigator(Kenkyū-buntansha) KOHTANI Shigeru  Kanazawa University, 薬学部, 教務職員 (00242529)
ITOH Michiya  Kanazawa University (30012610)
Project Period (FY) 1988 – 1994
KeywordsSupersonic Jet / Hole Burning / Excited-State Interaction / Exciplex / Proton Transfer / Cluster
Research Abstract

1)In supersonic free jet, molecules can be in cooled and isolated molecular condition, which can exhibit inherent characters of molecules different from those in solution. Some intramolecular hydrogen bonding systems show the excited state proton transfer (ESPT) in the singlet excited state of molecule. This projet presents nanosecond fluorescence studies of the intramoecular ESPT in 3-hydroxyflavone and related complounds and in their solvent clusters in supersonic expansion.
2)Intramolecular exciplex formation in the jet-cooled bichromophoric electron donor-acceptor systems is distinguishable from the intermolecular exciplex in supersonic expansion. The present persistent hole burning depletion spectra have demonstrated that the multi-conformations are involved in these bichromophoric EDA systems as well as intermolecular vdW complex. The different ground-state conformations were observed to exhibit the different excess vibrational energy dependence of the exciplex formation.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Michiya Itoh: "Fluorescence of the excited-state proton transfer in substitutec 3-hydroxychromones in supersonic jet." Pure,& Appli Chem.65. 1629-1634 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] R.Takasu,Y.Fujiwara,M.Itoh: "No excited stateproton transfer in jet-cooled methanol clusters of 3-hydroxyflavone" Chem.Phys.Letters. 217. 76-480 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N.Kizu,M.Itoh: "Intramolecular exciplex formation in jet-cooled bichromophoric chain molecules;Torsional conformations・・・・" J.Am.Chem.Soc.115. 4799-4807 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N.Kurono,R.Takasu M.Itoh: "Fluorescecne and hole burning deplection spectra of jet-cooled 4-(2,3-dimethylbutenyl-oxymethy1・・・・・・・" J.Phys.Chem.98. 5925-5930 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] R.Takasu,N.Kizu M.Itoh: "Fluorescecne and hole burning depletion spectra of 1-(9- and 1-anthry1)-3-phenylpropanes" J.chem.Phys.101. 7364-7371 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N.Kurono,R.Takasu M.itoh: "Fluorescence and hole burning depletion spectra of jet-cooled 1-(1- and 9-anthyr1・・・・・" J.Phys.Chem.(in press).

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Michiya, Itoh: "Fluorescence studies of the excited-state proton transfer in substituted 3-hydroxychromones in supersonic jet" Pure & Appl. Chem.65. 1629-1634 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ryozo Takasu, Yoshihisa Fujiwara, and Michiya Itoh: "No excited state proton transfer takes place in jet-cooled methanol clusters of 3-hydroxyflavone" Chem.Phys.Lett.217. 478-480 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Noriyuki Kizu and Michiya Itoh: "Intramolecular exciplex formation in jet-cooled bichromophoric chain molecules : Torsional conformations and excess vibrational energy dependence" J.Am.Chem.Soc.115. 4799-4807 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Makoto Kurono, Ryozo Takasu, and Michiya Itoh: "Fluorescence and hole burning depletion spectra of jet-cooled 4- (2', 3'-dimethylbutenyloxy) methyl-1-cyanonaphthalene : Multiconforamtions and intramolecular exciplex formation" J.Phys.Chem.98. 5925-5930 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ryozo Takasu, Noriyuki Kizu, Michiya Itoh, and Hiroyuki Shinoda: "Fluorescence and hole burning depletion spectra of 1- (9-and 1-anthryl)-3-phenylpropanes in supersonic free jet" J.Chem.Phys.101. 7364-7371 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Makoto Kurono, Ryozo Takasu, and Michiya Itoh: "Fluorescence and hole burning depletion spectra of jet-cooled 1- (1-and 9-anthryl)-3- (m-N,N-dimethylaminophenyl) propanes : Multiconformations and exciplex formation" J.Phys.Chem.(submitted). (1994)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1996-04-15  

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