A supersonic free-jet spectrum of the ?4 band of CF3Cl has been measured using a quantum cascade laser system. Those measurements were combined with a low temperature (-67 C) FTS spectrum of the region 1060 to 1260 cm-1 and with room temperature FTS measurements down to 400 cm-1 to give improved values for the rovibrational constants for the v1, v2, v3, 2v3, 2v5, v4, and v5 states of CF335Cl and CF337Cl. The principal perturbation found by earlier investigators in the v1 band is treated as a very weak Coriolis interaction at several avoided crossings of the rotational levels of the v1 state and the 2v5 state with kl
Revised: January 15, 2009 |
Published: November 1, 2008
Citation
Kelly J.F., A. Maki, T.A. Blake, and R.L. Sams. 2008.Supersonic Free-jet Quantum Cascade Laser Measurements of v4 for CF3(35)Cl and CF3(37)Cl and FTS Measurements from 400 to 1260 cm-1.Journal of Molecular Spectroscopy 252, no. 1:81-89.PNNL-SA-60884.doi:10.1016/j.jms.2008.07.001