The ν6 Band System of C3O2 Near 540 cm−11

✍ Scribed by J. Vanderauwera; J.K. Holland; P. Jensen; J.W.C. Johns

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 533 KB
• Volume: 163
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1994.1045

✦ Synopsis

The infrared spectrum of the (v_{6}) band system of carbon suboxide, (\mathrm{C}{3} \mathrm{O}{2}), has been recorded between 500 and (600 \mathrm{~cm}^{-1}) at a resolution of (0.002 \mathrm{~cm}^{-1}). Altogether 23 bands have been assigned. They correspond to transitions (\nu_{6}+n \nu_{7} \leftarrow n \nu_{7}, n \leqslant 9), where (v_{6}) is the asymmetric (C C O) bending mode and (\nu_{7}) is the very anharmonic CCC bending mode. Among these bands, 20 have been rotationally analyzed and 1220 lines assigned. The line positions were fitted to effective parameters which characterize these 20 vibrational levels in the (v_{6}) state. The results of the fits were then fitted to a semirigid bender model in order to determine the effective CCC bending potential function in the (\nu_{6}) state. 1994 Academic Press. Inc