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Cavity ring-down spectroscopy of radicals and radical complexes

Research Project

Project/Area Number 26410019
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Physical chemistry
Research InstitutionKagoshima University

Principal Investigator

SUMA Kohsuke  鹿児島大学, 法文教育学域教育学系, 准教授 (10506728)

Project Period (FY) 2014-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywordsラジカル / CRDS / 高分解能分光 / ラジカル錯体 / 分子軌道計算 / CDRS
Outline of Final Research Achievements

Spectra of radicals and radical complexes were searched using cavity ring-down spectroscopy coupled to a pulsed discharge slit nozzle. The apparatus was improved by introducing a new dye laser and preparing new scanning program. Although the signal to noise ratio of radicals was improved, their complexes have not been detected. Spectra of carbon chain radicals containing silicon, those have already reported were successfully observed, but new similar species have not been detected.
Fermi resonance and Coriolis resonance of the HOOO radical have been investigated. These resonance effects cannot explain the discrepancy between the theoretical rotational constants of vibronically excited states and experimental ones.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (1 results)

All 2015

All Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] Force-field calculation and geometry of the HOOO radical2015

    • Author(s)
      K. Suma, Y. Sumiyoshi, and Y. Endo
    • Organizer
      Symposium on Advanced Molecular Spectroscopy
    • Place of Presentation
      東京大学( 東京都 目黒区)
    • Year and Date
      2015-07-18
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2014-04-04   Modified: 2019-03-29  

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