science-softCon uv/vis spectra data base;		www.uv-spectra.de; (C) science-softCon 2008

Substance: ethyl radical				Other Names: 

Formula: C2H5					CAS-No.: 2025-56-1

Study: absorption

                
Authors: V. Khamaganov, R. Karunanandan, A. Rodriguez, J. N. Crowley

Title: Photolysis of CH3C(O)CH3 (248 nm, 266 nm), CH3C(O)C2H5 (248 nm) and CH3C(O)Br (248 nm): pressure 
dependent quantum yields of CH3 formation

Journal/Source: Phys. Chem. Chem. Phys., 9, 4098 - 4113, (2007); DOI: 10.1039/b701382e


Data: (diagram, table, disk):

Wavelength range: 222 nm

Resolution: 0.5 nm

Temperature: 298 K

Temperature dependence: 

Pressure: 5 - 1500 Torr (N2)


Comments: As part of this study, the absorption cross section of CH3 at 216.4 nm (instrumental resolution of 0.5 nm) was measured to 
be (4.27 ± 0.2) × 10-17 cm2 molecule-1 and that of C2H5 at 222 nm was (2.5 ± 0.6) × 10-18 cm2 molecule-1. An absorption 
spectrum of gas-phase CH3C(O)Br (210-305 nm) is also reported for the first time.

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