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

Substance: propylene					Other Names: propene

Formula: C3H6						CAS-No.: 115-07-1

Study: uv absorption cross sections


Authors: A. Fahr, A. Nayak

Title: Temperature dependent ultraviolet absorption cross sections of propylene, methylacetylene and vinylacetylene

Journal/Source: Chem. Phys., 203, 351-358, (1996); http://dx.doi.org/10.1016/0301-0104(95)00401-7


Data: table, diagram

Energy/Wavelength range: 160 - 200 nm

Resolution: 5 nm

Temperature: 223 K, 233 K, 253 K, 273 K, 295 K, 313 K, 333 K

Temperature dependence: yes

Pressure/Concentration: 

Phase: gas

pH:


Comments: The temperature dependence of the UV absorption cross sections of propylene (CH3CH=CH2) and methylacetylene (CH3C=CH) 
from 160 to 200 nm and vinylacetylene (CH2=CHC=CH) from 160 to 240 nm have been measured in the gas phase, for temperatures ranging 
from about 220 to 330 K. The propylene spectrum, exhibits a broad absorption band with a maximum at 172.0 nm with some structure to the 
short wavelength side of the broad band. At the absorption peaks a small increase (about 5%) in the cross sections has been observed with 
decreasing temperature from 333 to 233 K. At the long wavelength tail of the absorption band the cross sections are found to decrease with 
decreasing temperature.

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