Artículo
Rate coefficient for the reaction of Cl atoms with cis-3-hexene at 296 ± 2 K
Barbosa, Thaís S.; Barrera, Javier Alejandro
; Jara Toro, Rafael Alejandro
; Bauerfeldt, Glauco F.; Arbilla, Graciela; Lane, Silvia Irene
Fecha de publicación:
11/2017
Editorial:
Sociedade Brasileira de Química
Revista:
Journal of the Brazilian Chemical Society
ISSN:
1678-4790
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The rate coefficient of the cis-3-hexene + Cl atoms reaction at 296 ± 2 K and 750 ± 10 Torr was determined using the relative rate technique. The reaction was investigated using an 80 L Teflon reaction bag and a gas chromatograph coupled with flame-ionization detection. Chlorine atoms were produced by the photolysis of trichloroacetyl chloride. No previous experimental data was available in the literature, to the best of our knowledge. The mean second-order rate coefficient value found was (4.13 ± 0.51) × 10-10 cm3 molecule-1 s-1. The experimental value agrees with the rate coefficient estimated by structure-reactivity analysis, 4.27 × 10-10 cm3 molecule-1 s-1. Moreover, both addition and hydrogen abstraction channels contribute to the global kinetics, with branching ratios 70:30. Effective lifetime with respect to Cl atoms is predicted as 67.2 hours; however, the cis-3-hexene + Cl channel is suggested to be non-negligible at atmospheric conditions. Other atmospheric implications are discussed.
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Articulos(INFIQC)
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Citación
Barbosa, Thaís S.; Barrera, Javier Alejandro; Jara Toro, Rafael Alejandro; Bauerfeldt, Glauco F.; Arbilla, Graciela; et al.; Rate coefficient for the reaction of Cl atoms with cis-3-hexene at 296 ± 2 K; Sociedade Brasileira de Química; Journal of the Brazilian Chemical Society; 28; 11; 11-2017; 2267-2274
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