Line mixing effect in the ν₂ band of CH₃Br

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• 作者：F. Hmida^a ; ^c ; S. Galalou^a ; F. Kwabia Tchana^b ; M. Rotger^c ; H. Aroui^a ; ^{haroui@yahoo.fr}
• 关键词：CH3Br ; Fourier transform infrared spectroscopy ; ν2 band ; Line mixing ; Line intensity ; Self-broadening ; Self-shift
• 刊名：Journal of Quantitative Spectroscopy and Radiative Transfer
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：189
• 期：Complete
• 页码：351-360
• 全文大小：943 K
• 卷排序：189

文摘

Retrievals of spectroscopic parameters of CH3Br are performed using high-resolution FTIR spectra and Rosenkranz profile taking into account line mixing effect. Measurement of line intensities, broadening and line shift coefficients for 38 doublets in the ν2 band. Considering line mixing effect, the observed line intensities and broadening coefficients are ~5% smaller. Discussed rotational quantum number dependence of line intensities and broadening coefficients. The measured line mixing parameters are large and bipolar. The self-shift coefficients are large and mostly negative.