Infrared spectroscopy of 17O- and 18O-enriched carbon dioxide in the 1700-8300 cm-1 wavenumber region

The assignment of the high resolution Fourier transform spectra of carbon dioxide enriched in O-17 and O-18 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: (OCO)-O-16-C-12-O-16, (OCO)-O-16-C-12-O-18, (OCO)-O-16-C-13-O-16, (OCO)-O-16-C-13-O-18, (OCO)-O-18-C-12-O-18, (OCO)-O-18-C-13-O-18, (OCO)-O-16-C-12-O-17, (OCO)-O-17-C-12-O-17, (OCO)-O-17-C-12-O-18, (OCO)-O-16-C-13-O-17, (OCO)-O-17-C-13-O-17 and (OCO)-O-17-C-13-O-18 were observed. Among them, 99 bands were observed for the first time. The majority of new observed bands belong to (OCO)-O-17 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. (C) 2012 Elsevier Ltd. All rights reserved.