The diode laser absorption spectrum of the nu(13) band of benzene cooled in a supersonic expansion has been recorded with the help of a multipass optical system built inside the vacuum chamber. Transitions from low J, K values (0-10) are reported for the first time for this band. The observed freque
Diode–Laser Spectroscopy of the ν19a Band of Chlorobenzene in a Supersonic Jet
✍ Scribed by Araitz Uskola; Francisco J. Basterretxea; Fernando Castaño
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 255 KB
- Volume
- 202
- Category
- Article
- ISSN
- 0022-2852
No coin nor oath required. For personal study only.
✦ Synopsis
The diode-laser absorption spectrum of the 19a band of the chlorobenzene molecule cooled in a supersonic jet is presented and transitions from low J, K a , and K c values (0 -14) are reported. The C 6 H 5 35 Cl band center has been found at 0 ϭ 1483.894 cm Ϫ1 and rotational constants for the upper state have been determined from a least-squares fitting to experimental data. The band center for the C 6 H 5 37 Cl isotope has also been obtained.
📜 SIMILAR VOLUMES
High resolution infrared spectra of the n 5 and n 10 bands of C 2 F 6 in a supersonic jet have been measured using a diode laser spectrometer. The well resolved vibration-rotation lines of these two bands were obtained. The spectra were analyzed using a standard Hamiltonian for a prolate symmetric r
High-resolution diode laser spectroscopy was applied to measure absolute line intensities in the 9.8-mm n 14 band of benzene 12 C 6 H 6 . A new data treatment had to be developed to derive single line parameters from the strongly overlapped lines. This procedure includes a self-deconvolution and an
## FIG. 2. Boltzmann plot for the 12 band of benzene observed in a supersonic jet. The symbols ‚, ᮀ, , ƒ, E, U, OE, s, and F correspond to K ϭ 1-9 in the ground state. For K ϭ 0, ϩ and ϫ are assigned to even and odd J, respectively.
The n 3 fundamental band (C-N stretch) and four associated hot bands (01 1 1-01 1 0, 10 0 1-10 0 0, 02 0 1-02 0 0, and 02 2 1-02 2 0) of natural 79/81 Br 12 C 14 N have been recorded and analyzed in the 4.8-mm region using an FTIR spectrometer. Analyses of the same hot bands, previously recorded usi