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 / Iodoalkanes(C,H,F,Cl,Br,I) / CH2ICl / IUPAC(2008)_298K_205-390nm(rec)

DATAFILE: CH2ICl_IUPAC(2008)_298K_205-390nm(rec).txt
NAME: chloroiodomethane
FORMULA: CH2ICl
AUTHOR(YEAR): IUPAC(2008)
T: 298K
λ: 205-390nm(rec)
BIBLIOGRAPHY: R. Atkinson, D.L. Baulch, R.A. Cox, J.N. Crowley, R.F. Hampson, R.G. Hynes, M.E. Jenkin, M.J. Rossi, J. Troe, and T.J. Wallington, "Evaluated kinetic and photochemical data for atmospheric chemistry: Volume IV - gas phase reactions of organic halogen species", Atmos. Chem. Phys. 8, 4141-4496 (2008); DOI: 10.5194/acp-8-4141-2008
COMMENTS: IUPAC(2008) recommendation:

Mean of the data of

O.V. Rattigan, D.E. Shallcross, and R.A. Cox, "UV absorption cross-sections and atmospheric photolysis rates of CF3I, CH3I, C2H5I and CH2ICl," J. Chem. Soc. Faraday Trans. 93, 2839-2846 (1997); DOI: 10.1039/A701529A, and

C.M. Roehl, J.B. Burkholder, G.K. Moortgat, A.R. Ravishankara, and P.J. Crutzen, "Temperature dependence of UV absorption cross sections and atmospheric implications of several alkyl iodides," J. Geophys. Res. 102(D11), 12819-12829 (1997); DOI: 10.1029/97JD00530

The temperature dependence ln σ(T) = ln σ(298K) + B × (T - 298) and the temperature coefficients B (243-333 K):

------------------
λ  103 B
(nm) (K-1)
-----------------
235  0.24
240  0.12
245 -0.02
250 -0.11
255 -0.28
260 -0.44
265 -0.55
270 -0.59
275 -0.47
280 -0.18
285  0.32
290  0.99
295  1.73
300  2.56
305  3.08
310  3.50
315  3.56
320  3.46
325  3.44
330  3.72
335  4.09
340  4.87
345  5.69
350  6.88
355  8.16
360  9.01
365 11.06
370 11.47
375 12.77
380 15.14
385 19.12
390 20.48

are adopted from the work of Rattigan et al. (1997)

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