TY - JOUR
T1 - Rate constants of the gas-phase reactions of OH radicals with trans-2-hexenal, trans-2-octenal, and trans-2-nonenal
AU - Tingting, G. A.O.
AU - Andino, Jean M.
AU - Rivera, Carlos C.
AU - Marquez, Misaela Francisco
N1 - Funding Information:
Acknowledgements The research was partially supported by the European Community through the grant ENV4-CT87-0529 (FRAMEWORK Project), by the National Council for Research of Italy—Group for the Prevention of Hydrogeological Disasters (GNDCI), and by the Ministry of University and Scientific and
PY - 2009/7
Y1 - 2009/7
N2 - The rate constants of the gas-phase reaction of OH radicals with trans-2-hexenal, trans-2-octenal, and trans-2-nonenal were determined at 298 ± 2 K and atmospheric pressure using the relative rate technique. Two reference compounds were selected for each rate constant determination. The relative rates of OH + trans-2-hexenal versus OH + 2-methyl-2-butene and p-pinene were 0.452 ± 0.054 and 0.530 ± 0.036, respectively. These results yielded an average rate constant for OH + trans-2-hexenal of (39.3 ± 1.7) x 10 -1.2 cm 3 molecule -1 s -1. The relative rates of OH + trans-2-octenal versus the OH reaction with butanal and β-pinene were 1.65 ± 0.08 and 0.527 ± 0.032, yielding an average rate constant for OH + trans-2-octenal of (40.5 ± 2.5) x 10 1.2 cm 3 molecule -1 s -1. The relative rates of OH + trans-2-nonenal versus OH + butanal and OH + trans-2-hexenal were 1.77 ± 0.08 and 1.09 ± 0.06, resulting in an average rate constant for OH + trans-2-nonenal of (43.5 ± 3.0) x 10 -1.2 cm 3 molecule -1 s -1. In all cases, the errors represent 2 (95% confidential level) and the calculated rate constants do not include the error associated with the rate constant of the OH reaction with the reference compounds. The rate constants for the hydroxyl radical reactions of a series of trans-2-aldehydes were compared with the values estimated using the structure activity relationship.
AB - The rate constants of the gas-phase reaction of OH radicals with trans-2-hexenal, trans-2-octenal, and trans-2-nonenal were determined at 298 ± 2 K and atmospheric pressure using the relative rate technique. Two reference compounds were selected for each rate constant determination. The relative rates of OH + trans-2-hexenal versus OH + 2-methyl-2-butene and p-pinene were 0.452 ± 0.054 and 0.530 ± 0.036, respectively. These results yielded an average rate constant for OH + trans-2-hexenal of (39.3 ± 1.7) x 10 -1.2 cm 3 molecule -1 s -1. The relative rates of OH + trans-2-octenal versus the OH reaction with butanal and β-pinene were 1.65 ± 0.08 and 0.527 ± 0.032, yielding an average rate constant for OH + trans-2-octenal of (40.5 ± 2.5) x 10 1.2 cm 3 molecule -1 s -1. The relative rates of OH + trans-2-nonenal versus OH + butanal and OH + trans-2-hexenal were 1.77 ± 0.08 and 1.09 ± 0.06, resulting in an average rate constant for OH + trans-2-nonenal of (43.5 ± 3.0) x 10 -1.2 cm 3 molecule -1 s -1. In all cases, the errors represent 2 (95% confidential level) and the calculated rate constants do not include the error associated with the rate constant of the OH reaction with the reference compounds. The rate constants for the hydroxyl radical reactions of a series of trans-2-aldehydes were compared with the values estimated using the structure activity relationship.
UR - http://www.scopus.com/inward/record.url?scp=68149179861&partnerID=8YFLogxK
U2 - 10.1002/kin.20424
DO - 10.1002/kin.20424
M3 - Artículo
SN - 0538-8066
VL - 41
SP - 483
EP - 489
JO - International Journal of Chemical Kinetics
JF - International Journal of Chemical Kinetics
IS - 7
ER -