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IR-spectra of (CO2)2 dimers and collision-induced absorption of carbon dioxide in the region of the fermi doublet (ν1, 2ν2) |
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| Authors: | A A Vigasin E G Tarakanova G V Tchlenova |
| Institution: | a Institute of Atmospheric Physics, Russian Academy of Sciences, Pyzhevsky per. 3, Moscow 109017, Russia b Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky prosp., 31, Moscow 117907, Russia |
| Abstract: | The positions and intensities of all vibrational transitions in the (ν1, 2ν2) Fermi doublet region of (CO2)2 dimers are obtained by means of variational method. The collision-induced absorption in compressed carbon dioxide is shown to be mainly due to dimeric absorption. Assignment of ν1 and 2ν2 vibrational bands in isolated CO2 molecule is performed by consideration of the symmetries and intensities of dimeric vibrations. |
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