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DIODE LASER SPECTROSCOPY OF CLUSTERS PRODUCED BY THE PICK-UP METHOD

Research Project

Project/Area Number 06640667
Research Category

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

Allocation TypeSingle-year Grants
Research Field Physical chemistry
Research InstitutionJOSAI UNIVERSITY

Principal Investigator

OZAKI Yasushi  JOSAI UNIVERSITY,DEPARTMENT OF CHEMISTRY,ASSISTANT PROFESSOR, 理学部, 助教授 (40152475)

Co-Investigator(Kenkyū-buntansha) KONNO Toichi  JOSAI UNIVERSITY,DEPARTMENT OF CHEMISTRY,RESEARCH ASSISTANT, 理学部, 助手 (40077988)
HORIAI Koui  JOSAI UNIVERSITY,DEPARTMENT OF CHEMISTRY,LECTURER, 理学部, 講師 (10077935)
UEHARA Hiromichi  JOSAI UNIVERSITY,DEPARTMENT OF CHEMISTRY,PROFESSOR, 理学部, 教授 (80160208)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1995: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1994: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsCLUSTER / INFRARED SPECTROSCOPY / DIODE LASER SPECTROSCOPY / PICK-UP METHOD / MOLECULAR DYNAMIC CALCULATION
Research Abstract

The vibrational motion of Ar clusters having isomers in a variety of shapes was simulated by the molecular dynamics method. It was found that only the breathing vibration was excited in nearly spherical isomers, while signifin cant excitation of the quadruple spheroidal vibration was observed in non-spherical isomers. The excitation of the quadruple spheroidal vibration was found to be closely related to the degrees of sphericality fo the isomers. On the other hand, when a non-spherical Ar_<30> was excited, three strong peaks were observed in the spectra. One of the three peaks was assigned to the bending vibration of the cluster in whole.
Molecular exchange reaction of an argon cluster, in collision with a CO_2 molecule by pick-up method was investigated by mass spectrometry. Binary clusters, Ar_mCO_2, were found to be produced in the molecular exchange reaction. The measured reaction cross section and the average numbers of release Ar atoms in the reaction were almost consistent with those calculated by the molecular dynamics method.
Molecular exchange reaction of (CO_2)_n cluster, in collision with CH_3OH by pick-up method was investigated by mass spectrometry. An apparatus for measurement of vibration-rotation spectra of dimers was assembled with a diode laser and the vibration-rotation spectrum of (CO_2)_2 was measured. Peaks of the spectrum was found to disappear when CH_3OH was introduced, indicating that (CO_2)_2 was attenuated by the pick-up method.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] 尾崎 裕、篠田 泰寿、市橋 正彦、近藤 保: "Spheroidal Vibrations of Ar Cluster Isomers Analyzed by Molecular Dynamics Calculation" Surf.Rev.Lett.印刷中.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 尾崎 裕、市橋 正彦、近藤 保: "Bending Vibration of a Non-Spherical Ar Cluster Analyzed by Molecular Dynamics Calculation" Proc.Yamada Conference XLIII. 印刷中.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 尾崎 裕、福山 力、市橋 正彦、近藤 保: "Production of Heterogeneous Cluster,Ar_m(CO_2),by the Molecular Exchange Reaction of Ar_n with CO_2" Sci.Rep.RITU. 印刷中.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Ozaki, Y.Shinoda, M.Ichihashi and T.Kondow: "Spheroidal Vibrations of Ar Cluster Isomers Analzyed by Molecular Dynamics Calculation" Surf.Rev.Lett.(in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Ozaki, M.Ichihashi and T.Kondow: "Bending Vibration of a Non-Spherical Ar Cluster Analyzed by Molecular Dynamics Calculation" Proc.Yamada Conference XLIII. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Ozaki, T.Fukuyama, M.Ichihashi and T.Kondow: "Production of Heterogeneous Cluster, Ar_m (CO_2), by the Molecular Exchange Reaction of Ar_n with CO_2" Sci.Rep.RITU. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yasushi Ozaki 他: "Bending Vibration of a Non-Spherical Ar Cluster Analyzedbg Molecular Dynamics Calculation" Proceedings Yamada Conference XLIII. (印刷中).

    • Related Report
      1995 Annual Research Report
  • [Publications] Yasushi Ozaki 他: "Production of Heterogeneous Cluster, Ar_m(CO_2),by the Molecalar Exchange Reaction of Ar_n with CO_2" Science Report RITU Series A. (印刷中).

    • Related Report
      1995 Annual Research Report
  • [Publications] Yasushi Ozaki: "Spheroidal Vibrations of ArCluster Isomers Analyzed by Molecular Dynamics Calculation" Surface Review and Letters. (印刷中).

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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