Citation:Michael Staak, Edward W. Gash, Dean S. Venables, Albert A. Ruth, The rotationally-resolved absorption spectrum of formaldehyde from 6547 to 6804 cm(−1), Journal of Molecular Spectroscopy, Volume 229, Issue 1, January 2005, Pages 115-121, ISSN 0022-2852, 10.1016/j.jms.2004.08.019.
The room temperature absorption spectrum of formaldehyde, H2CO, from 6547 to 6804 cm(-1) (1527-1470 nm) is reported with a spectral resolution of 0.001 cm(-1). The spectrum was measured using cavity-enhanced absorption spectroscopy (CEAS) and absorption cross-sections were calculated after calibrating the system using known absorption lines of H2O and CO2. Several vibrational combination bands occur in this region and give rise to a congested spectrum with over 8000 lines observed. Pressure broadening coefficients in N-2, O-2, and H2CO are reported for an absorption line at 6780.871 cm(-1) and in N-2 for an absorption line at 6684.053 cm(-1).
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