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

Substance: n-butyraldehyde				Other Names: butaldehyde; butanal

Formula: C4H8O; CH3(CH2)2CHO				CAS-No.: 123-72-8

Study: photolysis, uv absorption spectrum


Authors: Y. Chen, L. Zhu, J.S. Francisco

Title: Wavelength-dependent photolysis of n-butyraldehyde and i-butyraldehyde in the 280-330 nm region

Journal/Source: J. Phys. Chem. A, 106, 7755-7763, (2002); DOI: 10.1021/jp014544e


Data: diagram, table

Energy/Wavelength range: 280 - 330 nm

Resolution: 5 nm

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration:

Phase: gas

pH:


Comments: The authors have investigated the gas-phase photolysis of n-butyraldehyde (CH3(CH2)2CHO) and i-butyraldehyde 
((CH3)2CHCHO) at 5 nm intervals in the 280-330 nm region. Absorption cross sections of both aldehydes have been measured.
The HCO quantum yields from n-butyraldehyde photolysis are 0.52 ± 0.05, 0.74 ± 0.08, 0.84 ± 0.04, and 0.77 ± 0.08 at 305, 310, 
315, and 320 nm.

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