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 / Roehl(1997)_223K_205-335nm

DATAFILE: CH2ICl_Roehl(1997)_223K_205-335nm.txt
NAME: chloroiodomethane
FORMULA: CH2ICl
AUTHOR(YEAR): Roehl(1997)
T: 223K
λ: 205-335nm
BIBLIOGRAPHY: 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
COMMENTS: Absorption measurements at 223, 248, 273, and 298 K with a spectral resolution of 0.3 nm using a diode array spectrometer

Second-order polynomial fit of the temperature dependence (210-298 K):

σ(λ, T) = σ(298 K) [1 + a1(T - 298) + a2(T - 298)2] with

-------------------------------
λ  103 a1  105 a2
(nm) (K-1)  (K-2)
-------------------------------
205 -1.59   -3.83
210  8.47    3.76
215  6.12    4.30
220  0.232  0.13
225 -0.0938  0.660
230 -0.268   -1.4e-6
235 -0.512   -0.388
240 -0.793   -0.664
245 -0.929   -0.758
250 -1.22   -1.13
255 -1.25   -1.00
260 -1.56   -1.14
265 -1.05   -0.294
270 -1.33   -0.593
275 -1.07   -0.298
280 -0.618  -0.309
285 -0.326  -0.554
290  0.300  -0.711
295  1.55    -0.245
300  2.38    -0.0473
305  3.13     0.394
310  3.13     0.303
315  2.74    -0.317
320  2.44    -0.533
325  2.87     0.140
330  8.52    -4.21
335  2.02    -2.25
340  5.20     4.54
345  7.05     6.88
350  9.12    11.7
355 12.27   18.9

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