کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5429462 | 1397354 | 2010 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Temperature-dependent absorption cross-sections of HCFC-142b Temperature-dependent absorption cross-sections of HCFC-142b](/preview/png/5429462.png)
Following the recent detection of HCFC-142b (1-chloro-1,1-difluoroethane) from space, laboratory infrared absorption cross-section spectra of this molecule in a pure vapour phase have been recorded in the 650-3500cm-1 spectral region using Fourier transform spectroscopy. The spectra have been recorded at a resolution of 0.02cm-1 and a range of temperatures from 223 to 283Â K. The resulting data show good agreement with the harmonic frequencies and intensities calculated using density functional theory as well as with the integrated absorption intensities of the spectral bands available in the literature. The new cross-sections will allow more accurate retrieval of atmospheric HCFC-142b concentrations using infrared spectroscopic techniques.
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 111, Issue 3, February 2010, Pages 364-371