The MPI-Mainz UV/VIS Spectral Atlas

of Gaseous Molecules of Atmospheric Interest

www.uv-vis-spectral-atlas-mainz.org

Hannelore Keller-Rudek1, Geert K. Moortgat2, Rolf Sander2, Rüdiger Sörensen1

1Satellite Group

2Atmospheric Chemistry Division

Max-Planck Institute for Chemistry
Mainz, Germany

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When referring to the Spectral Atlas, please cite our publication:

Keller-Rudek, H., Moortgat, G. K., Sander, R., and Sörensen, R.: The MPI-Mainz UV/VIS spectral atlas of gaseous molecules of atmospheric interest, Earth Syst. Sci. Data, 5, 365–373, (2013), DOI: 10.5194/essd-5-365-2013

Cross Sections / Alkanes+alkyl radicals / Alkanes / i-C4H10,(CH3)2CHCH3 / Lombos(1967)_298K_117.5-164.4nm

DATAFILE: i-C4H10,(CH3)2CHCH3_Lombos(1967)_298K_117.5-164.4nm.txt
NAME: isobutane, 2-methylpropane
FORMULA: i-C4H10,(CH3)2CHCH3
AUTHOR(YEAR): Lombos(1967)
T: 298K
λ: 117.5-164.4nm
BIBLIOGRAPHY: B.A. Lombos, P. Sauvageau, and C. Sandorfy, "The far-ultraviolet spectra of branched chain paraffins", Chem. Phys. Lett. 1, 221-223 (1967); DOI: 10.1016/0009-2614(67)85056-5
COMMENTS: Absorption measurements using a hydrogen discharge tube as the light source and a vacuum spectrophotometer under 0.02 nm resolution

Extinction coefficients vs. wavenumber as plotted in Fig. 1 have been digitized and converted to absorption cross sections (conversion factor 3.8235×10-21) vs. wavelength

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