Ozonolysis of a series of C7–C9 unsaturated biogenic aldehydes: Reactivity study at atmospheric pressure
- Gaona Colmán, Elizabeth
- Blanco, Maria Belen
- Barnes, Ian
- Teruel, Mariano Andres
DOIAbstract
Rate coefficients for the reactions of O3 with trans-2-heptenal, trans-2-octenal and trans-2-nonenal have been determined at 298 K and (990 ± 10) mbar in an environmental chamber with in situ FTIR spectroscopy. The following rate coefficients in units of kO3 × 1018 (cm3 molecule−1 s−1) were obtained: (2.47 ± 0.73) for trans-2-heptenal, (2.37 ± 0.68) for trans-2-octenal and (2.05 ± 0.20) for trans-2-nonenal. It is shown that rate coefficients for the addition of O3 molecules and OH radicals to the double bond of alkenes and unsaturated and oxygenated volatile organic compounds (OVOCs) at 298 K are related to a good approximation by the expression: log kOH = 0.16 log kO3 − 7.55. Furthermore, a correlation between the reactivity of unsaturated...
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