Diana Sofía González Rodríguez - Academia.edu (original) (raw)
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Papers by Diana Sofía González Rodríguez
Dearq, 2010
Miembro del grupo de investigación en Gestión y Diseño de Vivienda (GIV). Autora de varias public... more Miembro del grupo de investigación en Gestión y Diseño de Vivienda (GIV). Autora de varias publicaciones sobre temas de gestión urbana, vivienda social y participación ciudadana en asuntos públicos.
Chemical Physics Letters, 2003
The kinetics and mechanism of the reaction of chlorine atoms with acrylonitrile (CH 2 CHCN) (1) h... more The kinetics and mechanism of the reaction of chlorine atoms with acrylonitrile (CH 2 CHCN) (1) have been studied by the mass spectrometric discharge-flow method in the temperature range (260-333) K and at a total pressure between 0.5 and 3 Torr. At 1.0 Torr the following Arrhenius expression for the rate constant has been obtained from the kinetics of Cl radical consumption in excess of CH 2 CHCN: k 1 ¼ ð5:2 AE 1:6Þ Â 10 À14 exp½ð1400 AE 100=T Þ cm 3 molecule À1 s À1. The reaction is found to proceed through an addition mechanism involving a relatively stable adduct. The atmospheric significance of the present results for acrylonitrile is also discussed.
Chemical Physics Letters, 2002
The kinetics and the mechanism of the reaction BrO þ CH 3 SH ! P (1) have been studied using the ... more The kinetics and the mechanism of the reaction BrO þ CH 3 SH ! P (1) have been studied using the mass spectrometric discharge-flow method over the temperature range 259-333 K and at low total pressure between 0.5 and 3 Torr. The temperature dependence of the reaction rate constant has been determined under pseudo-first-order kinetic conditions in excess of CH 3 SH over BrO radicals, k ¼ ð2:2 AE 1:9Þ Â 10 À15 exp½ð827 AE 255Þ=T cm 3 molecule À1 s À1. The reaction has been found to be pressure dependent in the pressure range studied. The experimental evidences suggest an addition mechanism. The studied reaction constitutes an efficient atmospheric sink for the reduced sulfur compound, CH 3 SH.
Atmospheric Environment, 2003
The kinetics of the gas-phase reactions of chlorine atoms with acrylic acid (1) and allyl alcohol... more The kinetics of the gas-phase reactions of chlorine atoms with acrylic acid (1) and allyl alcohol (2) have been investigated at low pressure (0.5-3 Torr) in the temperature range 260-333 K using the mass spectrometric discharge-flow method. The temperature dependence of the reaction rate constants at 1 Torr have been determined under pseudo-first-order conditions in excess of organic compound over Cl atoms, giving: k 1 ¼ ð1:370:9Þ Â 10 À13 expð16007200Þ=T cm 3 molecule À1 s À1 and k 2 ¼ ð1:170:5Þ Â 10 À11 expð4707135Þ=T cm 3 molecule À1 s À1 : At room temperature and 1 Torr; products of abstraction and addition channels have been detected for reactions (1) and (2). By mass spectrometric quantification, the branching ratio for channels giving HCl, was determined as 0:1370:05 for reaction (1) and 0:5770:06 for reaction (2). The results obtained are related to previous studies, and the atmospheric implications are also discussed in relation to the homogeneous sinks of acrylic acid and allyl alcohol.
Dearq, 2010
Miembro del grupo de investigación en Gestión y Diseño de Vivienda (GIV). Autora de varias public... more Miembro del grupo de investigación en Gestión y Diseño de Vivienda (GIV). Autora de varias publicaciones sobre temas de gestión urbana, vivienda social y participación ciudadana en asuntos públicos.
Chemical Physics Letters, 2003
The kinetics and mechanism of the reaction of chlorine atoms with acrylonitrile (CH 2 CHCN) (1) h... more The kinetics and mechanism of the reaction of chlorine atoms with acrylonitrile (CH 2 CHCN) (1) have been studied by the mass spectrometric discharge-flow method in the temperature range (260-333) K and at a total pressure between 0.5 and 3 Torr. At 1.0 Torr the following Arrhenius expression for the rate constant has been obtained from the kinetics of Cl radical consumption in excess of CH 2 CHCN: k 1 ¼ ð5:2 AE 1:6Þ Â 10 À14 exp½ð1400 AE 100=T Þ cm 3 molecule À1 s À1. The reaction is found to proceed through an addition mechanism involving a relatively stable adduct. The atmospheric significance of the present results for acrylonitrile is also discussed.
Chemical Physics Letters, 2002
The kinetics and the mechanism of the reaction BrO þ CH 3 SH ! P (1) have been studied using the ... more The kinetics and the mechanism of the reaction BrO þ CH 3 SH ! P (1) have been studied using the mass spectrometric discharge-flow method over the temperature range 259-333 K and at low total pressure between 0.5 and 3 Torr. The temperature dependence of the reaction rate constant has been determined under pseudo-first-order kinetic conditions in excess of CH 3 SH over BrO radicals, k ¼ ð2:2 AE 1:9Þ Â 10 À15 exp½ð827 AE 255Þ=T cm 3 molecule À1 s À1. The reaction has been found to be pressure dependent in the pressure range studied. The experimental evidences suggest an addition mechanism. The studied reaction constitutes an efficient atmospheric sink for the reduced sulfur compound, CH 3 SH.
Atmospheric Environment, 2003
The kinetics of the gas-phase reactions of chlorine atoms with acrylic acid (1) and allyl alcohol... more The kinetics of the gas-phase reactions of chlorine atoms with acrylic acid (1) and allyl alcohol (2) have been investigated at low pressure (0.5-3 Torr) in the temperature range 260-333 K using the mass spectrometric discharge-flow method. The temperature dependence of the reaction rate constants at 1 Torr have been determined under pseudo-first-order conditions in excess of organic compound over Cl atoms, giving: k 1 ¼ ð1:370:9Þ Â 10 À13 expð16007200Þ=T cm 3 molecule À1 s À1 and k 2 ¼ ð1:170:5Þ Â 10 À11 expð4707135Þ=T cm 3 molecule À1 s À1 : At room temperature and 1 Torr; products of abstraction and addition channels have been detected for reactions (1) and (2). By mass spectrometric quantification, the branching ratio for channels giving HCl, was determined as 0:1370:05 for reaction (1) and 0:5770:06 for reaction (2). The results obtained are related to previous studies, and the atmospheric implications are also discussed in relation to the homogeneous sinks of acrylic acid and allyl alcohol.