Title: Atmospheric Chemistry of C3-C6 Cycloalkanecarbaldehydes
Authors: D'ANNA B.WISTHALER A.ANDREASEN Oe.JENSEN NIELSNIELSEN C.j.HANSEL A.HJORTH JENSSTENSTROEM Y.
Citation: JOURNAL OF PHYSICAL CHEMISTRY A vol. 109 no. 23 p. 5104-5118
Publisher: AMER CHEMICAL SOC
Publication Year: 2005
JRC Publication N°: JRC32213
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC32213
Type: Articles in Journals
Abstract: The rate coefficients for the gas phase reaction of NO3 and OH radicals with a series of cycloalkanecarbaldehydes have been measured in purified air at 298 ± 2 K and 760 ± 10 Torr by the relative rate method using a static reactor equipped with long-path FT-IR detection. The values obtained for the OH radical reactions (in units of 10-11 cm3 molecule-1 s-1) were: cyclopropanecarbaldehyde, 2.13 ± 0.05; cyclobutanecarbaldehyde, 2.66 ± 0.06; cyclopentanecarbaldehyde, 3.27 ± 0.07; cyclohexanecarbaldehyde, 3.75 ± 0.05. The values obtained for the NO3 radical reactions, (in units of 10-14 cm3 molecule-1 s-1) were: cyclopropanecarbaldehyde, 0.61 ± 0.04; cyclobutanecarbaldehyde, 1.99 ± 0.06, cyclopentanecarbaldehyde 2.55 ± 0.10; cyclohexanecarbaldehyde, 3.19 ± 0.12. Furthermore, the reaction products with OH have been investigated using long-path FT-IR spectroscopy and proton-transfer-reaction mass spectrometry (PTR-MS). The identified products cover a wide spectrum of compounds including nitroperoxycarbonyl cycloalkanes, cycloketones, cycloalkyl nitrates, multifunctional compounds containing carbonyl, hydroxy and nitrooxy functional groups, HCOOH, HCHO, CO and CO2.
JRC Institute:Institute for Environment and Sustainability

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