Affordable Access

Publisher Website

High-Resolution Fourier Transform Infrared Spectrum of CF2CH2in the ν8Region near 1300 cm−1

Journal of Molecular Spectroscopy
Publication Date
DOI: 10.1006/jmsp.1993.1030
  • Physics


Abstract The Fourier transform infrared spectrum of CF 2CH 2 has been investigated in the ν 8 band region around 1301 cm −1 with a resolution near the Doppler limit. This fundamental of symmetry species B 1, mainly involving the CF 2 asymmetric stretching motion, gives rise to a strong b-type band. The rovibrational analysis in the P, Q, and R branches led to the identification of more than 2800 lines with J, K a , and K c values up to 71, 53, and 70, respectively, which were fitted using the Watson′s A-reduction Hamiltonian in the I r representation. A least-squares fit of the assigned transitions provided a set of accurate rotational and quartic centrifugal distortion constants for the first excited vibrational state of the ν 8 band. A weaker b-type absorption at 1320 cm −1, mostly dispersed under the very strong fundamental, has also been analyzed and the band has been attributed to the 3ν 10 overtone. From about 570 assigned transitions with J, K a , and K c up to 55, 17, and 55, for the most part belonging to the R branch, a set of molecular constants was determined for the v 10 = 3 state of CF 2CH 2.

There are no comments yet on this publication. Be the first to share your thoughts.


Seen <100 times

More articles like this

The High-Resolution Mid-infrared FT Spectrum of Di...

on Journal of Molecular Spectrosc... Jan 01, 1994

High-Resolution Infrared Study of the ν7, ν8, and...

on Journal of Molecular Spectrosc... Jan 01, 2000

High-Resolution Fourier Transform Infrared Spectro...

on Journal of Molecular Spectrosc... Jan 01, 1999

High-Resolution Infrared Spectrum of BrCN in the ν...

on Journal of Molecular Spectrosc... Jan 01, 2000
More articles like this..