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 / Alkenes,polyenes+radicals / Polyenes / CH2=C(CH3)CH=CH2 / MuiGrunwald(1984)_418.5K_258-268nm

DATAFILE: CH2=C(CH3)CH=CH2_MuiGrunwald(1984)_418.5K_258-268nm.txt
NAME: 2-methyl-1,3-butadiene, isoprene
FORMULA: CH2=C(CH3)CH=CH2
AUTHOR(YEAR): MuiGrunwald(1984)
T: 418.5K
λ: 258-268nm
BIBLIOGRAPHY: P.W. Mui and E. Grunwald, "Enthalpy change for the s-trans to s-cis conformational equilibrium in 2-methyl-1,3-butadiene (isoprene), as studied by high-temperature ultraviolet absorption spectroscopy", J. Phys. Chem. 88, 6340-6344 (1984); DOI: 10.1021/j150669a056
COMMENTS: High-temperature absorption measurements applied to investigate the conformational equilibrium (s-cis ↔ s-trans) in isoprene

Molar extinction coefficients from Table I converted to absorption cross sections (conversion factor 3.8235×10-21)

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