High resolution FTIR spectrum of the ν₁ band of bromochloromethane

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• 作者：W. ; F. Wang ; T. ; L. Tan ; B. ; L. Tan ; P. ; P. Ong
• 关键词：Least-square fitting ; Q branch
• 刊名：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Section
• 出版年：1996
• 出版时间：March, 1996
• 年：1996
• 卷：52
• 期：3
• 页码：337-342
• 全文大小：254 K

文摘

The IR spectrum of the ν₁ band of natural bromochloromethane (CH₂BrCl) has been recorded at a resolution of 0.008 cm⁻¹ in the region 2940-3060 cm⁻¹ on a BOMEM DA3.002 Fourier-transform spectrometer. The rovibrational analysis on the strong Q branch of this B-type band has been performed in the prolate symmetry top approximation due to the fairly small difference between constants B and C. A normal linear least-square fitting of the identified ^P,RQ_K(J) clusters provided the corresponding excited state molecular parameters for three of the four naturally existing isotopomers of bromochloromethane with a standard error of about 0.02 cm⁻¹