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 / Alkynes,polyynes+radicals / Polyynes / C4H2 / Ferradaz(2009)_173K_125.2-164.4nm(max)

DATAFILE: C4H2_Ferradaz(2009)_173K_125.2-164.4nm(max).txt
NAME: diacetylene, butadiyne
FORMULA: C4H2
AUTHOR(YEAR): Ferradaz(2009)
T: 173K
λ: 125.2-164.4nm(max)
BIBLIOGRAPHY: T. Ferradaz, Y. Benilan, N. Fray, A. Jolly, M. Schwell, M.-C.Gazeau, and H.W. Jochims, "Temperature-dependent photoabsorption cross-sections of cyanoacetylene and diacetylene in the mid-and vacuum-UV: Application to Titan's atmosphere", Planet. Space Sci. 57, 10-22 (2009); DOI: 10.1016/j.pss.2008.10.005
COMMENTS: HC≡CC≡H

Maxima of the absorption spectrum measured at a spectral resolution of 0.05 nm using synchrotron radiation;
absorption coefficients in cm-1 amagat-1 (base e) from Table 4 have been converted to absorption cross sections (conversion factor 3.72×10-20)

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