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

Substance: glycolaldehyde				Other Names: acetaldehyde, hydroxy-

Formula: C2H4O2						CAS-No.: 141-46-8

Study: uv absorption spectra, photolysis, quantum yields


Authors: C. Zhu, L. Zhu

Title: Photolysis of Glycolaldehyde in the 280-340 nm Region

Journal/Source: J. Phys. Chem. A, 114 (32), 8384-8390, (2010); DOI: 10.1021/jp104497d


Data: table, diagram

Energy/Wavelength range: 280 - 340 nm

Resolution: 

Temperature: 295 K

Temperature dependence: no

Pressure/Concentration: varied between 1.5×10-3 Torr and 0.40 Torr

Phase: gas

pH:


Comments: Absorption cross sections of glycolaldehyde in the 280-340 nm region were measured by cavity ring-down spectroscopy.
The average HCO quantum yields from the glycolaldehyde photolysis were 0.61 ± 0.08, 0.59 ± 0.05, 0.61 ± 0.16, 0.66 ± 0.09, 0.61 ± 0.11, 
0.65 ± 0.05, 0.47 ± 0.04, 0.52 ± 0.09, and 0.45 ± 0.05 at 280, 285, 290, 295, 300, 305, 308, 310, and 315 nm.

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