MPG

The MPI-Mainz UV/VIS Spectral Atlas

of Gaseous Molecules of Atmospheric Interest

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

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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 / Halogeno-alkanes+radicals / Freons-CFC(C,F,Cl) / CCl2FCF3(CFC-114a) / Davis(2016)_250K_192.5-225nm

DATAFILE: CCl2FCF3(CFC-114a)_Davis(2016)_250K_192.5-225nm.txt
NAME: 1,2-dichlorotetrafluoroethane (CFC-114a)
FORMULA: CCl2FCF3(CFC-114a)
AUTHOR(YEAR): Davis(2016)
T: 250K
λ: 192.5-225nm
BIBLIOGRAPHY: M.E. Davis, F. Bernard, M.R. McGillen, E.L. Fleming, and J.B. Burkholder, "UV and infrared absorption spectra, atmospheric lifetimes, and ozone depletion and global warming potentials for CCl2FCCl2F (CFC-112), CCl3CClF2 (CFC-112a), CCl3CClF2 (CFC-113a), and CCl2FCF3 (CFC-114a)", Atmos. Chem. Phys. 16, 8043–8052 (2016); DOI: 10.5194/acp-16-8043-2016
COMMENTS: The output of a stable 30W deuterium (D2) lamp light source was collimated and directed through a jacketed 90.4-0.3 cm single-pass absorption cell, and the beam exiting the cell was focused onto the entrance slit (150 μm) of a 0.25m monochromator (∼1 nm resolution) and detected using a photomultiplier tube (PMT)

Parameterization of the temperature dependence valid over the wavelength range 192.5 to 235 nm for temperatures between 207 and 323 K

ln (σ(λ,T)) = ∑i Ai λii + (T -296) ∑i Bi λii

with the following parameters Ai and Bi:

------------------------------------------------------------
i    Ai         Bi
------------------------------------------------------------

0    -253.6338      0.52031
1   2.899454     -0.005044
2  -0.0081158       1.6142×10-6
3  -3.68328×10-5       7.2259×10-8
4   2.071842×10-7     2.4996×10-11
5  -2.5764×10-10      -5.9642×10-13

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