Author： Gambi A. de Lorenzi A. Giorgianni S.
Publisher： Academic Press
ISSN： 0022-2852
Source： Journal of Molecular Spectroscopy, Vol.182, Iss.2, 1997-04, pp. : 378-384
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Abstract
The infrared spectrum of vinyl fluoride (CH 2 =CHF) has been investigated in the region 390-590 cm -1 at room temperature and at a resolution of 0.0016 cm -1 using a Fourier transform spectrometer. The rovibrational analysis of the spectral features allowed us to assign about 11 000 lines ( J < 60) of the nu 9 ab -type band centered at 483.0666 cm -1 and more than 700 lines ( J < 40) of the 2nu 9 - nu 9 ab -type hot band, the bandcenter of which is located at 485.6687 cm -1 . The experimental data provided the rotational and centrifugal distortion constants for the vibrational excited states v 9 = 1 and 2 employing Watson's A -reduction Hamiltonian in the I r representation. Moreover, band origins, harmonic frequency, and anharmonicity factor have been obtained from the vibrational analysis of the fundamental and the associated hot band.
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