Photooxidation of n-Hexanal in Air
Abstract
:Introduction
Results and Discussion
Photolysis of n-Hexanal
Total pressure (Torr) | Norrish type I | Norrish type II |
100.00 | 0.35 | 0.66 |
100.00 | 0.38 | 0.62 |
100.00 | 0.35 | 0.65 |
0.36±0.02 | 0.64±0.02 | |
300.00 | 0.28 | 0.72 |
300.00 | 0.26 | 0.74 |
300.00 | 0.28 | 0.72 |
0.27±0.01 | 0.73±0.01 | |
500.00 | 0.29 | 0.71 |
500.00 | 0.29 | 0.71 |
500.00 | 0.30 | 0.70 |
0.29±0.01 | 0.71±0.01 | |
700.00 | 0.27 | 0.73 |
700.00 | 0.28 | 0.72 |
700.00 | 0.27 | 0.73 |
0.27±0.01 | 0.73±0.01 |
Δ CO/ -Δ hexanal | Δ 1-butene / -Δhexanal | Δ (ethanal+ethenol )/ -Δhexanal |
0.23 | 0.61 | 0.57 |
Absolute Quantum Yields
Pressure (Torr) | Abs. Quantum yield |
100.00 | 0.43 |
100.00 | 0.41 |
100.00 | 0.44 |
0.43 ± 0.02 | |
300.00 | 0.41 |
300.00 | 0.42 |
300.00 | 0.43 |
0.42 ± 0.01 | |
500.00 | 0.43 |
500.00 | 0.38 |
500.00 | 0.41 |
0.40 ± 0.03 | |
700.00 | 0.40 |
700.00 | 0.37 |
700.00 | 0.37 |
0.38 ± 0.02 |
Conclusions
- ·
- Identification of the products of hexanal photolysis, detectable in IR region under applied conditions.
- ·
- Quantification of the products, and deduction of the photodecomposition pattern, particularly of primary step, exploiting the benefit of applied experimental system
- ·
- Determination of the absolute quantum yields at different pressures, providing values necessary for atmospheric modeling, at the same time examining the influence of the total pressure on the absolute quantum yield, evaluating importance of collisional deactivations, and indicating other relaxation channels
Experimental
References and Notes
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- Sample Availability: Not available
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Tadić, J.; Juranić, I.; Moortgat, G.K. Photooxidation of n-Hexanal in Air. Molecules 2001, 6, 287-299. https://doi.org/10.3390/60400287
Tadić J, Juranić I, Moortgat GK. Photooxidation of n-Hexanal in Air. Molecules. 2001; 6(4):287-299. https://doi.org/10.3390/60400287
Chicago/Turabian StyleTadić, Jovan, Ivan Juranić, and Geert K. Moortgat. 2001. "Photooxidation of n-Hexanal in Air" Molecules 6, no. 4: 287-299. https://doi.org/10.3390/60400287