science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2019

Substance: phenyl radical				Other Names: 

Formula: C6H5						CAS-No.: 2396-01-2

Study: absorption cross sections

                
Authors: T.J. Wallington, H. Egsgaard, O.J. Nielsen, J. Platz, J. Sehested, T. Stein

Title: UV–visible spectrum of the phenyl radical and kinetics of its reaction with NO in the gas phase

Journal/Source: Chem. Phys. Lett., 290, 363-370, (1998); doi:10.1016/S0009-2614(98)00537-5


Data: diagram, tablw

Energy/Wavelength range: 225 - 575 nm

Resolution: 

Temperature: 295 K

Temperature dependence: no

Pressure/Concentration: 

Phase:

pH:


Comments: Phenyl radicals have a strong broad featureless absorption in the region of 225-340 nm. 
The phenyl radical spectrum was measured relative to that of nitrosobenzene. Based upon sigma(C6H5NO)270 nm=3.82×10-17 cm2 molecule-1 
the authors derive an absorption cross-section for phenyl radicals at 250 nm, sigma(C6H5)250 nm=(2.75±0.58)×10-17 cm2 molecule-1.

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