The infrared spectrum of the rare isotopologue 14C 16O2 has been investigated in the range 2190–2250 cm1 with a frequency-comb-referenced cavity ring-down spectrometer. Thirty-three ro-vibrational transitions of the 3 fundamental band have been detected. Their absolute frequency was measured with a relative uncertainty ranging from 7:1108 to 1:1108 . The experimental frequencies were fitted to the conventional Hamiltonian of a linear molecule and a new set of spectroscopic parameters for the fundamental vibrational state has been improved for this species.
The v3 band of 14C16O2 molecule measured by optical-frequency-comb-assisted cavity ring-down spectroscopy / I. Galli; P. Cancio Pastor; G. Di Lonardo; L. Fusina; G. Giusfredi; D. Mazzotti; F. Tamassia; P. De Natale.. - In: MOLECULAR PHYSICS. - ISSN 0026-8976. - STAMPA. - 109:(2011), pp. 2267-2272. [10.1080/00268976.2011.614284]
The v3 band of 14C16O2 molecule measured by optical-frequency-comb-assisted cavity ring-down spectroscopy
DI LONARDO, GIANFRANCO;FUSINA, LUCIANO;TAMASSIA, FILIPPO;
2011
Abstract
The infrared spectrum of the rare isotopologue 14C 16O2 has been investigated in the range 2190–2250 cm1 with a frequency-comb-referenced cavity ring-down spectrometer. Thirty-three ro-vibrational transitions of the 3 fundamental band have been detected. Their absolute frequency was measured with a relative uncertainty ranging from 7:1108 to 1:1108 . The experimental frequencies were fitted to the conventional Hamiltonian of a linear molecule and a new set of spectroscopic parameters for the fundamental vibrational state has been improved for this species.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
