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: | FC6H4CH2_Lee(2008)_300K_237-262nm.txt |
NAME: | p-fluorobenzyl radical |
FORMULA: | FC6H4CH2 |
AUTHOR(YEAR): | Lee(2008) |
T: | 300K |
λ: | 237-262nm |
BIBLIOGRAPHY: |
C. Lee, "Pressure and temperature dependence of recombination reactions of benzyl-type radicals",
PhD Thesis Univ. Göttingen, Germany, 2008
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COMMENTS: | A transient absorption was measured at 253 nm and 300 K for the p-fluorobenzyl radical generated by laser photolysis of Cl2 at 308 nm and the subsequent fast bimolecular reaction of chlorine atoms with an excess amount of p-fluorotoluene
Benzyl radicals have been employed as a calibration source at the probe wavelength of 253 nm and σ(253 nm) = 1.3 × 10-16 cm2 molecule-1 (C. Fay, PhD Thesis Univ. Göttingen, 1997) has been adopted which lead to σ(253 nm) = (8.4 ± 1.0) × 10-17 cm2 molecule-1 for the p-fluorobenzyl radical
Absorption measurements at different detection wavelengths between 237 and 262 nm and scaling to the 253 nm value lead to the listed absoption cross sections (Table 3.1.1)
A weak temperature dependence for T = 255-400 K was observed which could be expressed as
σ(T, 253 nm) = 8.4 × 10-17 (T/300 K)-0.05 |
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