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

Substance: carbon dioxide				Other Names:

Formula: CO2						CAS-No.: 124-38-9

Study: uv absorption spectrum

                
Authors: R.J. Jensen, R.D. Guettler, J.L. Lyman

Title: The ultraviolet absorption spectrum of hot carbon dioxide

Journal/Source: Chem. Phys. Lett., 277 (4), 356-360, (1997); doi:10.1016/S0009-2614(97)00919-6


Data: table, diagram

Energy/Wavelength range: 230 - 355 nm

Resolution: 

Temperature: 1523 to 2273 K

Temperature dependence: yes

Pressure/Concentration: 

Phase: gas

pH:


Comments: The vacuum ultraviolet absorption spectrum of CO2 shifts significantly to longer wavelengths with increasing temperature.
The authors have measured this temperature dependence and present absorption cross sections for 230 to 355 nm at temperatures 
from 1523 to 2273 K. At 2273 K this red shift extends the absorption above 300 nm and well into the blue end of the solar spectrum.

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