Fourier transform spectroscopy on the 3ν2, 2ν2 + ν6 and ν3 + ν5 bands of H2CO

Details Fourier transform spectroscopy on the 3ν2, 2ν2 + ν6 and ν3 + ν5 bands of H2CO Fourier transform spectroscopy on the 3ν2, 2ν2 + ν6 and ν3 + ν5 bands of H2CO

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jmosp.114..239t&link_type=abstract

Journal of Molecular Spectroscopy, Volume 114, Issue 2, p. 239-256.

Astronomy and Astrophysics

Astronomy

11

Scientific paper

Fourier transform spectra covering the range from 1500 to 5400 cm-1 with 0.02-cm-1 resolution have been obtained for formaldehyde. A study of the region above 4000 cm-1 has yielded rotational constants and other asymmetric rotor parameters for three bands: 3ν2 (ν0 = 5177.7611 +/- 0.0005 cm-1)2ν2 + ν6 (ν0 = 4734.193 +/- 0.004 cm-1), and ν3 + ν5 (ν0 = 4335.102 +/- 0.001 cm-1). An analysis of the A-type Coriolis interaction between the 2ν2 + ν6 state and the unobserved 2ν2 + ν4 state has yielded partially deperturbed rotational constants for the 2ν2 + ν6 state. Vibration-rotation interaction constants have been obtained for the ν2 and ν6 normal modes by combining the present results with those of previous workers.
Operated by the Association of Universities for Research in Astronomy, Inc., under contract with the National Science Foundation.

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