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 / Alkynes / C2H2 / Davidson(1993)_1660-2030K_220.67nm(fit)

DATAFILE: C2H2_Davidson(1993)_1660-2030K_220.67nm(fit).txt
NAME: acetylene, ethyne
FORMULA: C2H2
AUTHOR(YEAR): Davidson(1993)
T: 1660-2030K
λ: 220.67nm(fit)
BIBLIOGRAPHY: D.F. Davidson, A.Y. Chang, M.D. Di Rosa, and R.K. Hanson, "A cw laser absorption diagnostics for methyl radicals", J. Quant. Spectrosc. Radiat. Transfer, 49, 559-571 (1993); DOI: 10.1016/0022-4073(93)90067-R
COMMENTS: Absorption measurements in shock heated acetylene/argon mixtures

A linear fit for the absorption coefficient

k (atm-1 cm-1) (base e) = 1.048×10-3 T - 0.868

has been digitized from Fig. 11 and converted to absorption cross sections (conversion factor RT = 1.36×10-22 T; R (gas constant) in cm3 atm molecule-1 K-1)

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