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

Substance: beta-methylstyrene				Other Names: benzene, 1-propenyl-

Formula: C9H10						CAS-No.: 637-50-3

Study: uv absorption cross sections


Authors: A. Le Person, G. Eyglunent, V. Daële, A. Mellouki, Y. Mu

Title: The near UV absorption cross-sections and the rate coefficients for the ozonolysis of a series of styrene-like compounds

Journal/Source: J. Photochem. Photobiol. A: Chem., 195, 54-63, (2008); doi:10.1016/j.jphotochem.2007.09.006 


Data: table, diagram

Energy/Wavelength range: 260 - 310 nm

Resolution: 1 nm

Temperature: 328 K

Temperature dependence: no

Pressure/Concentration: 

Phase:

pH:


Comments: The UV absorption cross-sections and the rate coefficients for the ozonolysis of styrene, alpha-methylstyrene, 
beta-methylstyrene, 2-methylstyrene and indene have been investigated. The absorption spectra were measured using a diode 
array spectrometer over the wavelength range 260–310 nm at 328 K.
Large absorption cross-sections (~ 10-18 cm2 molecule-1) were observed for the investigated compounds over the wavelength 
range 260–280 nm, while their absorption cross-sections decreased sharply above 290 nm with values of about 
10-20 to 10-21 cm2 molecule-1 around 310 nm.

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