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

Substance: methyl radical				Other Names: 

Formula: CH3						CAS-No.: 2229-07-4

Study: UV absorption cross sections, kinetics


Authors: S.Y. Grebenkin, L.N. Krasnoperov

Title: Kinetics and Thermochemistry of the Hydroxycyclohexadienyl Radical Reaction with O2: C6H6OH + O2 <--> C6H6(OH)OO

Journal/Source: J. Phys. Chem. A, 108 (11), 1953-1963, (2004); DOI: 10.1021/jp030935c


Data: table, diagram

Energy/Wavelength range: 214 - 218 nm

Resolution: 0.027 nm (fwhm)

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration: 1 bar (He)

Phase: gas

pH:


Comments: Measurements of the Absorption Cross-Section of the CH3 Radical at 216.509 nm.Methyl radicals were generated by laser
photolysis (193 nm) of acetone vapor in helium. The absorption cross section sigma(216.509 nm) = (4.20 ± 0.15) x 10-17 cm2 molecule-1
(He, 298 K, 1 bar) was obtained (the errors are one standard deviation).

Author to whom correspondence should be addressed: (e-mail address):