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Transit Region Dynamics in the reative Hg^<**>(^3P_1)- H_2 Collisions

Research Project

Project/Area Number 06453014
Research Category

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

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

Principal Investigator

SATO Yukinori  Tohoku University Research Institute for Scientific Measurements Plof., 科学計測研究所, 教授 (10006158)

Co-Investigator(Kenkyū-buntansha) OKUNISHI Misaki  Tohoku University Research Institute for Scientific Measurements Recearch Asso., 科学計測研究所, 助手 (80224161)
OHMORI Kenji  Tohoku University Research Institute for Scientific Measurements Recearch Asso., 科学計測研究所, 助手 (10241580)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥7,200,000 (Direct Cost: ¥7,200,000)
Fiscal Year 1995: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1994: ¥6,500,000 (Direct Cost: ¥6,500,000)
KeywordsTransition Region Spectroscopy / Spectral Line Shapes / Reaction Dynamics / Far Wings / Collisional Broadening of Atomic Resonance Lines / Fine-Structure Transitions / 水銀光増感反応 / ポンプ・プローブ / 分子衝突
Research Abstract

Far-wing excitation and probe approach is employed to investigate the transit-region dynamics of the collisions of Hg (^3P_1) with the rare-gas atoms and the diatomic molecules. The following results are obtained :
(1)The absolute absorption coefficients have been determined for the red- and blue-wings of the Hg resonance line at 253.7nm broadened by He, Ne, Ar, N_2, CO,H_2 and D_2. The unduratory satellite structures in the blue wing of the Hg resonance line broadened by Ar are investigated theoretically.
(2)The far-wing pump and probe (FEP) technique has been applied to the far-wings of the Hg resonance line broadened by N_2 and CO to srudy the transit-region dynamics of the fine-structure transitions : Hg^<**>(^3P_1)+N_2, CO * Hg^<**>(^3P_0)+N_2, CO.
The FEP technique has been also used to study the transit-region dynamics of the chemical reactions : Hg^<**>(^3P_1)+H_2, D_2, HD * HgH,HgD(CHI_2SIGMA^+, v, j)+H,D.
Combining the results of (1) and (2), we have determined the probabilities for the transit regions ^^- and ^^- of the collisional quasimolecules to decay to the individual final states of the above collisional processes.
As for the Hg^*-H_2 reactive collisiions, the ^^- state is found to be three times more effective in producing HgH than the ^^- state. We have concluded that no "early" barrior is expected on both of the ^^- state and ^^- state surfaces in the entrance channel of the HgH formation.

Report

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

    (16 results)

All Other

All Publications (16 results)

  • [Publications] 大森賢治,他4名: "Far-wing excitation study on the fine-structure transitions of Hg (^3P_1-^3P_0) in collision with N_2" J. Chem. Phys.100. 5381-5383 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 佐藤幸紀: "Photoabsorption studies of Quasimolecules of alkaline-earth and related metal atoms" Spectral Line Shapes, AIP Press,. 8. 316-340 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 大森賢司,他7名: "Far-wing excitation study on the transit region of Hg ^3P_1→^3P_0 intramultiplet process in collisions with N_2 and CO" J. Chem. Phys.102. 7341-7350 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 佐藤幸紀、他5名: "Continuum absorption spectra in far wings of Hg ^1S_0→^3P_1 resonance line broadened by Ar" Phys. Rev. A. 53. 867-873 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 大森賢司,他7名: "Transit-region dynamics of the Hg (^3P_1)+H_2 reaction investigated by the far-wing excitation and probe technique" J. Chem. Phys.(発表予定).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] K.Ohmori, T.Kurosawa, H.Ciba, M.Okunishi, and Y.Sato: "Far-wing excitation study on the fine-structure transitions of Hg (^3P_1 - ^3P_0) in collision with N_2" J.Chem. Phys.100. 5381-5383 (1944)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yukinori Sato: "Photoabsorption studies of Quasimolecules of alkaline-earth and related metal atoms" Spectral Line Shapes, AIP Press. 8. 316-340 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] K.Ohmori, T.Kurosawa, H.Ciba, M.Okunishi, K.Ueda, Y.Sato and E.E.Nikitin: "Far-wing excitation study on the transit region of Hg ^3P_1 * ^3P_0 intra-multiplet process in collisions with N_2 and CO" J.Chem. Phys.102. 7341-7350 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Sato, T.Nakamura, M.Okunishi, K.Ohmori, H.Chiba, and K.Ueda: "Continuum absorption spectra in far wings of Hg ^1S_0 * ^3P_1 resonance line broadened by Ar" Phys. Rev. A. 53. 867-873 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] K.Ohmori, T.Takahashi, H.Ciba, K.Saito, T.Nakamura, M.Okunishi, K.Ueda, and Y.Sato: "Transit-region dynamics of the Hg (^3P_1)+H_2 reaction investigated by the far-wing excitation and probe technique" submitted to J.Chem.Phys.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 大森賢治,他4名: "Far-wing excitation study on the transit region of Hg ^3P_1→^3P_0 intra-multiplet process in collision with N_2 and CO" J.Chem.Phys.100. 5381-5383 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] 佐藤幸紀: "Photoabsorption studies of Quasimolecules of alkaline-earth and related metal atoms" Spectral Line Shapes,. 8. 316-340 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 大森賢治,他7名: "Far-wing excitation study on the transit region of Hg ^3P_1→^3P_0 intramultiplet process in collisions with N_2 and CO" J.Chem.Phys.102. 7341-7350 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 佐藤幸紀、他5名: "Continuum absorption spectra in far wings of Hg ^1S_0→^3P_1 resonance line broadened by Ar" Phys.Rev.A. 53. 867-873 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] K.Ohmori,T.Kurosawa,H.Chiba,M.Okunishi K.Ueda,Y.Sato and E.E.Nikitin: "Far-wing excitation study on the transit region of Hg^3P_1→^3P_0 intra-multiplet process in collision with N_2 and CO" J.Chem.Phys.(accepted). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] Y.Sato: ""Photoabsorption studies of Quasimolecules of alkaline-earth and related metal atoms"in spectral Line Shapes" A.David May and J.R.Drumond,AIP Press,25 (1995)

    • Related Report
      1994 Annual Research Report

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

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