Infrared spectroscopy of 17O- and 18O-enriched carbon dioxide in the 1700–8300 cm−1 wavenumber region
2012
Abstract The assignment of the high resolution Fourier transform spectra of carbon dioxide enriched in 17 O and 18 O which were recorded in LADIR (Paris, France) with the Bruker IFS 125-HR between 1800 and 9000 cm −1 and in USTC (Hefei, China) with the Bruker IFS 120-HR between 1700 and 9000 cm −1 was performed. In total 239 bands of 12 isotopologues: 16 O 12 C 16 O, 16 O 12 C 18 O, 16 O 13 C 16 O, 16 O 13 C 18 O, 18 O 12 C 18 O, 18 O 13 C 18 O, 16 O 12 C 17 O, 17 O 12 C 17 O, 17 O 12 C 18 O, 16 O 13 C 17 O, 17 O 13 C 17 O and 17 O 13 C 18 O were observed. Among them, 99 bands were observed for the first time. The majority of new observed bands belong to 17 OCO isotopologues. The positions of 23,003 lines were determined with the experimental uncertainty on the level of 0.001 cm −1 . The spectroscopic constants were fitted to the observed line positions for all observed bands.
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