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High-Resolution Infrared Spectrum of Vinyl Fluoride at 500 cm−1

✍ Scribed by A. Gambi; A. De Lorenzi; S. Giorgianni

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
247 KB
Volume
182
Category
Article
ISSN
0022-2852

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✦ Synopsis

The infrared spectrum of vinyl fluoride (CH 2 |CHF ) has been investigated in the region 390-590 cm 01 at room temperature and at a resolution of 0.0016 cm 01 using a Fourier transform spectrometer. The rovibrational analysis of the spectral features allowed us to assign about 11 000 lines (J £ 60) of the n 9 ab-type band centered at 483.0666 cm 01 and more than 700 lines (J £ 40) of the 2n 9 0 n 9 ab-type hot band, the bandcenter of which is located at 485.6687 cm 01 . The experimental data provided the rotational and centrifugal distortion constants for the vibrational excited states £ 9 Å 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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