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Line Intensities in the ν6 Fundamental Band of CH3Br at 10 μm

✍ Scribed by E. Brunetaud; I. Kleiner; N. Lacome

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
156 KB
Volume
216
Category
Article
ISSN
0022-2852

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✦ Synopsis

Fourier transform spectra have been obtained at 296 K at a resolution of 0.002 or 0.004 cm -1 depending on the pressure range. Line positions and intensities of CH 3 79 Br and CH 3 81 Br belonging to the fundamental band ν 6 were measured and analyzed between 890 and 1080 cm -1 . A total of 2896 (2838) line positions with J ≤ 60 and K ≤ 6 was fitted with a root-mean-square deviation of 0.00028 (0.00021) cm -1 for CH 3 79 Br and CH 3 81 Br, respectively, within the experimental accuracy. The fit to 316 (312) measured intensities yielded values of the dipole moment derivatives of both isotopes with a standard deviation of 5% to be compared to an experimental uncertainty equal to 6% or better. A prediction of the line positions and intensities has been generated for atmospheric purposes with all lines from 820 to 1120 cm -1 with intensities greater than 10 -5 cm -2 atm -1 .

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