The rotationally-resolved absorption spectrum of formaldehyde from 6547 to 6804 cm−1

@article{Staak2005TheRA,
  title={The rotationally-resolved absorption spectrum of formaldehyde from 6547 to 6804 cm−1},
  author={M. Staak and E. W. Gash and D. Venables and A. Ruth},
  journal={Journal of Molecular Spectroscopy},
  year={2005},
  volume={229},
  pages={115-121}
}
The room temperature absorption spectrum of formaldehyde, H2CO, from 6547 to 6804 cm i1 (1527 to 1470 nm) is reported with a spectral resolution of 0.001 cm i1 . 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… Expand
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References

SHOWING 1-10 OF 35 REFERENCES
Analysis of the high-resolution spectrum of ammonia (14NH3) in the near-infrared region, 6400-6900 cm-1
The near-infrared absorption spectrum of 14NH3 covering the 6400-6900 cm−1 region has been obtained at a resolution of 0.005 cm−1 using a Fourier transform spectrometer. The spectrum is very complex,Expand
Cross sections in the 2ν5 band of formaldehyde studied by cavity enhanced absorption spectroscopy near 1.76 µm
The 2ν5 C–H stretching band of formaldehyde has been studied by cavity enhanced absorption spectroscopy near 1.76 μm using the output of an external cavity diode laser. Strong individual transitionsExpand
Pure vibrational spectroscopy of S0 formaldehyde by dispersed fluorescence
Dispersed fluorescence spectra from the 000 rotational level of 40, 41, 51, and 3141 S1 formaldehyde (H2CO) have been recorded. From these spectra, 198 new vibrational states have been assigned withExpand
High-resolution diode laser absorption spectroscopy of the O-H stretch overtone band (2, 0, 0) ← (0, 0, 0) of the HO2 radical
Abstract The O–H stretching overtone (2ν1) of the HO2 radical was observed between 6603.2 to 6685.5 cm −1 by using tunable diode laser absorption spectroscopy (TDLAS). About 1000 lines were observedExpand
Comparison of cross-section measurements of the 2ν5 overtone band of formaldehyde determined by cavity ringdown and cavity enhanced spectroscopy
Abstract We have measured the integrated cross-section of a transition at 5676.08 cm −1 in the 2 ν 5 overtone band of formaldehyde to be (3.09 ± 0.10) × 10 −23 cm 2 cm −1 by cavity ringdownExpand
Time-resolved wavelength modulation spectroscopy measurements of HO 2 kinetics.
TLDR
The utility of time-resolved high-frequency wavelength modulation spectroscopy as a second-order kinetics probe is demonstrated through the measurement of the HO2 self-reaction rate constant at 295 K. Expand
Laboratory investigation of the photooxidation of formaldehyde combining FTIR analysis of stable species and HO2 detection by the chemical amplifier technique
Abstract The photodissociation of formaldehyde in air at one atmosphere pressure and room temperature has been investigated in a 977 L photoreactor by in situ analysis of stable species by FTIRExpand
Incoherent broad-band cavity-enhanced absorption spectroscopy
Abstract A new highly sensitive method for incoherent broad-band cavity-enhanced absorption measurements of gaseous samples, using a white-light source is demonstrated. The light of a short-arcExpand
Measurements of line strengths in the hydroperoxy .nu.1 overtone band at 1.5 .mu.m using an indium gallium arsenide phosphide laser
The hydroperoxyl radical, HO{sub 2}, is a pivotal atmospheric species, being closely coupled to OH, the most important oxidant in both tropospheric and stratospheric chemistry. The authors report theExpand
Rapid formaldehyde monitoring in ambient air by means of mid-infrared cavity leak-out spectroscopy
Abstract.We report the spectroscopic detection of formaldehyde in ambient air using cavity leak-out spectroscopy, a cw variant of cavity ring-down spectroscopy. This technique proved to be suitableExpand
...
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