Solvent effect on a model S N Ar reaction in ionic liquid/water mixtures at different compositions
Author
dc.contributor.author
Sánchez, Bruno
Author
dc.contributor.author
Calderón, Cristian
Author
dc.contributor.author
Garrido, Constanza
Author
dc.contributor.author
Contreras Ramos, Renato
Author
dc.contributor.author
Campodonico, Paola R.
Admission date
dc.date.accessioned
2018-11-09T14:26:15Z
Available date
dc.date.available
2018-11-09T14:26:15Z
Publication date
dc.date.issued
2018
Cita de ítem
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New J. Chem., 2018, 42, 9645
es_ES
Identifier
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10.1039/c7nj04820c
Identifier
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https://repositorio.uchile.cl/handle/2250/152548
Abstract
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The reaction of phenyl 2,4,6-trinitrophenyl ether and piperidine was kinetically evaluated in BMIMBF4/water mixtures as the reaction media. This study shows the dramatic effect of the mixture composition on the reacting pair and its reaction rate, highlighting two strongly demarcated zones. The first one, rich in water, is characterized by strong variations in the rate coefficient values, suggesting the presence of preferential solvent effects in the aqueous phase. The second zone shows high rate coefficient values independent of the composition of the solvent mixture, suggesting predominant anion solvent effects. These results were validated using fluorescence spectroscopy and the Kamlet-Taft parameter.
es_ES
Patrocinador
dc.description.sponsorship
Fondo de Innovacion para la Competitividad del Ministerio de Economia, Fomento y Turismo, Chile
RC-130006 CILIS
Fondecyt
1150759
Proyecto de Mejoramiento Institucional postdoctoral fellowship (CC) PMI-UDD