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Details for article 14 of 43 found articles
| Title: |
High-resolution FTIR spectra of CH2 = CClF in the 930-1050 cm-1 region |
| Author: |
CHARMET, A.PIETROPOLLI STOPPA, P. VISINONI, R. GIORGIANNI, S. NIVELLINI, G. |
| Appeared in: |
Molecular physics |
| Paging: | Volume 100 (2002) nr. 22 pages 3529-3534 |
| Year: |
2002-11-20 |
| Contents: |
The gas-phase infrared spectra of natural CH2 = CClF have been measured in the v6 and 2v12 band regions (930-1050 cm-1) by high-resolution Fourier transform spectroscopy at room temperature. 1-Chloro-1-fluoroethylene is a planar asymmetric rotor (κ = -0.54) belonging to the symmetry point group Cs and the vibrations investigated of symmetry species A' give rise to a/b-hybrid bands with contributions of comparable intensity from both the components. The rovibrational analysis of the fine structure led to the identification of 1894 (J ≤ 73, Ka ≤ 20) and 718 (J ≤ 53, Ka ≤ 8) transitions for the v6 and 2v12 bands of the 35Cl isotopic species, respectively. Using the Watson's A-reduction Hamiltonian in the Ir representation a set of accurate spectroscopic parameters for both the excited states u6 = 1 and u12 = 2 of 35Cl has been obtained for the first time. Transitions of 37Cl isotopomer could also be assigned in the Q branch region of the 2v12 overtone; the determined band origin shift of 0.782 cm-1 towards the lower wavenumbers led to describing the v12 fundamental as a vibration mainly involving the CFCl bending motion. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 14 of 43 found articles
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