Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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~1A' System of CHBr"> Spectroscopic Study of the Ã1A" - X~1A' System of CHBr

  • Received : 2010.12.21
  • Accepted : 2011.01.10
  • Published : 2011.03.20
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Abstract

We report fluorescence excitation and emission spectra of the CHBr molecule generated via pyrolysis of $CH_3Br$ in a molecular beam experiment. The 193 nm attenuation cross sections were estimated from the reduction of the CHBr signal as a function of the excimer laser fluence. The derived 193 nm absorption cross section for CHBr [$(3.24{\pm}0.59){\times}10^{-17}\;cm^2$] is slightly higher than the absorption cross section previously determined for CHCl [$(2.6{\pm}0.8){\times}10^{-17}\;cm^2$], but the difference is within the estimated uncertainties in the measured cross section.

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