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The far infrared spectrum of C3O2

par Vander Auwera, Jean ;Johns, John W.C.;Polyansky, Oleg L.
Référence The Journal of Chemical Physics, 95, 4, page (2299-2316)
Publication Publié, 1991

Article révisé par les pairs

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Résumé :

The far infrared spectrum of carbon suboxide, 12C 316O2, has been recorded at a resolution of 0.003 cm-1 in the region from 15 to 130 cm-1 with a Bomem interferometer. Altogether 18 bands involving the excitation of up to 8 quanta in the low frequency quasilinear bending mode v7 were analyzed rotationally. A total of 1320 far infrared lines together with 231 microwave lines taken from Karyakin et al. [J. Mol. Spectrosc. 94, 283 (1982)] have been fitted to an effective model. Improved effective constants have been obtained for all the l sublevels of v7=0 to 4 and for l=1 of v7=5. Constants have been obtained for the first time for the levels 53 and 55 and some of the l sublevels of v7=6, 7, and 8. Data for the lower lying levels were fitted to a realistic linear model and some data were also fitted to a bent model. © 1991 American Institute of Physics.