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Investigation of the isomerization reaction dynamics of HCP molecule

Research Project

Project/Area Number 11640493
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Physical chemistry
Research InstitutionTohoku University

Principal Investigator

ISHIKAWA Haruki  Tohoku University, Graduate School of Science, Research Assistant, 大学院・理学研究科, 助手 (80261551)

Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2000: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1999: ¥2,200,000 (Direct Cost: ¥2,200,000)
KeywordsHCP molecule / Isomerization / Highly excited vibrational levels / SEP分光
Research Abstract

We have been studying the isomerization of HCP spectroscopically. In the present study, we planned the investigation of the deutration effect on the reaction dynamics of HCP CPH Isomerization. However, it was very difficult to synthesize the deutrated HCP.In stead, we have carried out the observation of the excited vibrational levels of HCP near the isomerization barrier. Very recently, an interest theoretical study on the Isomerization of HCP was reported. This theoretical work shed a light in our study. According to it, the vibrational level where the H atom rotates around the CP core should have very large effective rotational constants compared with those in the low energy region. We could observe several vibrational levels in the energy region above the Isomerization barrier. Some of these levels have a very large rotational constant, the value of which is 15 % larger than that of the vibrational ground level. Our observation well agrees with the theoretical prediction. Now, we are preparing a new experiment that provides some information about the vibrational motion in the vibrational levels above the isomerization barrier.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] H.Ishikawa et al.: "Observation of the highly excited vibrational levels of HCP : Application of IR-UV-SEP triple resonance spectroscopy"Chemistry Letters. 941-942 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Ishikawa et al.: "HCP【tautomer】CPH Isomerizaton : Caught in the Act"Annual Review of Physical Chemistry. 50. 443-484 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Joyeux et al.: "Semiclassical study of the isomerization of HCP"Journal of Chemical Physics. 112. 4162-4172 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 石川春樹 他: "分光学的アプローチによる高振動励起多原子分子の振動ダイナミクス"分光研究. (印刷中). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Ishikawa et al.: "Observation of the Highly Excited Vibrational levels of HCP : Application of IR-UV-SEP Triple Resonance Spectroscopy"Chemistry Letters. 941-942 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Ishikawa et al.: "HCP【tautomer】CPH Isomerization : Caught in the Act"Annual Review of Physical Chemistry. vol.50. 443-484 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Joyeux et al.: "Semiclassical study of the isomerization of HCP"Journal of Chemical Physics. vol.112. 4162-4172 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Ishikawa et al.: "Spectroscopic approach to the vibrational dynamics of highly vibrationally excited polyatomic molecules"Journal of the Spectroscopical Society of Japan (Bunko-Kenkyu). (in press). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 石川春樹,三上直彦: "分光学的アプローチによる高振動励起多原子分子の振動ダイナミクス"分光研究. (印刷中). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Ishikawa,C.Nagao,N.Mikami: "Observation of the Highly Excited Vibrational Levels of HCP : Application of IR-UV-SEP Triple Resonance Spectroscopy"Chemistry Letters. 941-942 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Ishikawa,R.W.Field,S.C.Farantos,M.Joyeux,J.Koput,C.Beck,R.Schinke: "HCP【tautomer】CPH Isomerization : Caught in the Act"Annual Review of Physical Chemistry. 50. 443-484 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Joyeux,D.Sugny,V.Tyng,M.E.Kellman,H.Ishikawa,R.W.Field,C.Beck,R.Schinke: "Semiclassical study of the isomerization of HCP"Journal of Physical Chemistry. 112・9. 4162-4172 (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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