Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Teruel, Mariano Andres | - |
| dc.creator | Benitez Villalba, Julio | - |
| dc.creator | Caballero, Norma Beatriz | - |
| dc.creator | Blanco, Maria Belen | - |
| dc.date | 2018-10-10T20:23:18Z | - |
| dc.date | 2018-10-10T20:23:18Z | - |
| dc.date | 2012-06 | - |
| dc.date | 2018-09-18T16:16:12Z | - |
| dc.date.accessioned | 2019-04-29T15:49:28Z | - |
| dc.date.available | 2019-04-29T15:49:28Z | - |
| dc.date.issued | 2012-06 | - |
| dc.identifier | Teruel, Mariano Andres; Benitez Villalba, Julio; Caballero, Norma Beatriz; Blanco, Maria Belen; Gas-phase oxidation of methyl crotonate and ethyl crotonate. Kinetic study of their reactions toward oh radicals and Cl atoms; American Chemical Society; Journal of Physical Chemistry A; 116; 24; 6-2012; 6127-6133 | - |
| dc.identifier | 1089-5639 | - |
| dc.identifier | http://hdl.handle.net/11336/62146 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/303014 | - |
| dc.description | Rate coefficients for the reactions of hydroxyl radicals and chlorine atoms with methyl crotonate and ethyl crotonate have been determined at 298 K and atmospheric pressure. The decay of the organics was monitored using gas chromatography with flame ionization detection (GC-FID), and the rate constants were determined using the relative rate method with different reference compounds. Room temperature rate coeficcients were found to be (in cm 3 molecule -1 s -1): k 1(OH + CH 3CH=CHC(O)OCH 3) = (4.65 ± 0.65) × 10 -11, k 2(Cl + CH 3CH=CHC(O)OCH 3) = (2.20 ± 0.55) × 10 -10, k 3(OH + CH 3CH=CHC(O)OCH 2CH 3) = (4.96 ± 0.61) × 10 -11, and k 4(Cl + CH 3CH=CHC(O)OCH 2CH 3) = (2.52 ± 0.62) × 10 -10 with uncertainties representing ±2σ. This is the first determination of k 1, k 3, and k 4 under atmospheric pressure. The rate coefficients are compared with previous determinations for other unsaturated and oxygenated VOCs and reactivity trends are presented. In addition, a comparison between the experimentally determined k OH with k OH predicted from k vs E HOMO relationships is presented. On the other hand, product identification under atmospheric conditions has been performed for the first time for these unsaturated esters by the GC-MS technique in NO x-free conditions. 2-Hydroxypropanal, acetaldehyde, formaldehyde, and formic acid were positively observed as degradation products in agreement with the addition of OH to C2 and C3 of the double bond, followed by decomposition of the 2,3- or 3,2-hydroxyalkoxy radicals formed. Atmospheric lifetimes, based on of the homogeneous sinks of the unsaturated esters studied, are estimated from the kinetic data obtained in the present work. © 2012 American Chemical Society. | - |
| dc.description | Fil: Teruel, Mariano Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina | - |
| dc.description | Fil: Benitez Villalba, Julio. Universidad Nacional de Asunción; Paraguay | - |
| dc.description | Fil: Caballero, Norma Beatriz. Universidad Nacional de Asunción; Paraguay | - |
| dc.description | Fil: Blanco, Maria Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | American Chemical Society | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1021/jp2113889 | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jp2113889 | - |
| dc.rights | info:eu-repo/semantics/restrictedAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.subject | CINÉTICA QUÍMICA | - |
| dc.subject | CROTONATOS | - |
| dc.subject | FOTÓLISIS | - |
| dc.subject | DEGRADACIÓN | - |
| dc.subject | Otras Ciencias Químicas | - |
| dc.subject | Ciencias Químicas | - |
| dc.subject | CIENCIAS NATURALES Y EXACTAS | - |
| dc.title | Gas-phase oxidation of methyl crotonate and ethyl crotonate. Kinetic study of their reactions toward oh radicals and Cl atoms | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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