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) / Carbonyl oxides / CH2=C(CH3)CHOO / Lin(2022)_299K_336-500nm(Gaussian fit)

DATAFILE: CH2=C(CH3)CHOO_Lin(2022)_299K_336-500nm(Gaussian fit).txt
NAME: methacrolein oxide, MACRO
FORMULA: CH2=C(CH3)CHOO
AUTHOR(YEAR): Lin(2022)
T: 299K
λ: 336-500nm(Gaussian fit)
BIBLIOGRAPHY: Y.-H. Lin, K. Takahashi, and J. J.-M. Lin, "Absolute photodissociation cross sections of thermalized methyl vinyl ketone oxide and methacrolein oxide", Phys. Chem. Chem. Phys. 24, 10439-10450 (2022); DOI: 10.1039/d2cp00476c
COMMENTS: Synthesis of MACRO by photolysis at 352 nm of a 1,3-diiodo-2-methylprop-1-ene precursor

Determination of the absolute photodissociation cross section σdiss at 352 nm by the laser depletion method, see

Y.-H.-Lin and J.J.-M. Lin, J. Chin. Chem. Soc. 69, 152-159 (2022); DOI: 10.1002/jccs.202100336

Scaling of the spectrum (absorbances vs. wavelength) published by

Y.-H. Lin, C. Yin, K. Takahashi and J. J.-M. Lin, "Surprisingly long lifetime of methacrolein oxide, an isoprene derived Criegee intermediate, under humid conditions", Commun. Chem. 4, 12 (2021); DOI: 10.1038/s42004-42021-00451-z

to σdiss yielded absolute absorption cross sections for MACRO

Gausian fit (FWHM = 90.1 nm) to the spectrum

Data have been obtained by personal communication from Jim Jr-Min Lin (October 2022)

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