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
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| DATAFILE: | CH2=C(CH3)CH=CH2_Cias(2007)_293K_1651.52nm.txt |
| NAME: | 2-methyl-1,3-butadiene, isoprene |
| FORMULA: | CH2=C(CH3)CH=CH2 |
| AUTHOR(YEAR): | Cias(2007) |
| T: | 293K |
| λ: | 1651.52nm |
| BIBLIOGRAPHY: |
P. Cias, C. Wang, and T. Dibble, "Absorption cross-sections of the C–H overtone of volatile organic compounds: 2-methyl-1,3-butadiene (isoprene), 1,3-butadiene, and 2,3-dimethyl-1,3-butadiene",
Appl. Spectrosc. 61, 230-236 (2007);
DOI: 10.1366/000370207779947440
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| COMMENTS: | A method is proposed to determine the unknown NIR absorption cross-sections using the known absorption cross-sections in the UV region, in which single-path UV absorption spectroscopy and NIR continuous wave cavity ringdown spectroscopy (cw-CRDS) are employed in a cross-arm reaction chamber for simultaneous measurements
The method is demonstrated by measuring the NIR absorption cross-section of the first overtone of the asymmetric C–H stretch of 2-methyl-1,3-butadiene (isoprene) at 1651.52 nm using the known value of the absorption cross-section at 220 nm measured by
P. Campuzano-Jost, M.B. Williams, L. D'Ottone, and A.J. Hynes, "Kinetics and mechanism of the reaction of the hydroxyl radical with h8-isoprene and d8-isoprene: Isoprene absorption cross sections, rate coefficients, and the mechanism of hydroperoxyl radical production", J. Phys. Chem. A 108, 1537-1551 (2004) |
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