High-resolution infrared spectrum and analysis of the ν2 band of CF 3Cl
Abstract
The rotational structure of the ν2 band of CF 3Cl, with natural isotopic abundance, has been investigated using a tunable diode laser spectrometer. The spectra have been obtained for a low-temperature (⋍200 K) sample, to reduce the interfering contributions of hot-band transitions. Due to the very small value of the (Δ A - Δ B) constant for both isotopic species, the K structure of most P( J) and R( J) multiplets is generally not resolvable. Only for CF 335Cl, the K structure could be resolved for P( J) multiplets with J≥55. Molecular constants for the ν2 fundamental of both isotopic species have been obtained using least-squares fitting routines in combination with band contour simulations for unresolved K structure.
- Publication:
-
Journal of Molecular Spectroscopy
- Pub Date:
- August 1988
- DOI:
- 10.1016/0022-2852(88)90081-1
- Bibcode:
- 1988JMoSp.130..337B