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- W1846893807 abstract "Dilute mixtures of n-heptanal in synthetic air (up to 100 ppm) were photolyzed with fluorescent UV lamps (275–380 nm) at 298 K. The main photooxidation products, identified and quantitatively analyzed by FTIR spectroscopy, were pent-1-ene, CO, vinyl alcohol and ethanal. The photolysis rates and the absolute quantum yields Φ were found to be slightly dependent on the total pressure. At 100 Torr, Φ100= 0.36 ± 0.03, whereas at 700 Torr the total quantum yield was Φ700= 0.31 ± 0.01. The results may be explained by the collisional deactivation of photoexcited molecules. Two decomposition channels were identified: the radical channel C6H13CHO → C6H13+ HCO, and the molecular channel C6H13CHO → C5H10+ CH2CHOH, having the absolute quantum yields of 0.031and 0.118 at 700 Torr. The product CH2CHOH tautomerizes to ethanal." @default.
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- W1846893807 date "2001-12-07" @default.
- W1846893807 modified "2023-09-26" @default.
- W1846893807 title "Photooxidation of n-heptanal in air: Norrish type I and II processes and quantum yield total pressure dependency" @default.
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- W1846893807 doi "https://doi.org/10.1039/b106476m" @default.
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