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 / Organics (carbonyls) / Halogenated aldehydes / CCl3CHO / Rattigan(1998)_298K_200-360nm

DATAFILE: CCl3CHO_Rattigan(1998)_298K_200-360nm.txt
NAME: trichloroacetaldehyde, chloral
FORMULA: CCl3CHO
AUTHOR(YEAR): Rattigan(1998)
T: 298K
λ: 200-360nm
BIBLIOGRAPHY: O.V. Rattigan, O. Wild, and R.A. Cox, "UV absorption cross-sections and atmospheric photolysis lifetimes of halogenated aldehydes", J. Photochem. Photobiol. A: Chem. 112, 1-7 (1998); DOI: 10.1016/S1010-6030(97)00250-5
COMMENTS: Absorption measurements at 243 to 298 K using a diode array spectrometer

Averages over 5-nm intervals of the spectrum measured at a resolution of
∼0.6 nm (FWHM).

Temperature coefficients B for the parameterization

ln σ(T) = ln σ(298 K) + B × (T - 298) at T = 243-298 K:

------------------
λ   104 K
(nm) (K-1)
------------------
200   8.1
205 10.2
210 17.0
215 25.6
220 29.1
225 46.2
230 53.8
235 39.1
240 46.6
245 39.1
250 31.7
255 24.2
260 12.4
265  2.01
270 -2.31
275 -4.95
280 -5.31
285 -5.33
290 -4.53
295 -4.32
300 -2.33
305 -0.20
310  0.87
315  4.34
320  4.33
325 15.0
330 13.8
335 25.9
340 53.1
345 88.4
350 113.2
355 235.9

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