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dc.contributor.authorHevia de los Mozos, Luis Fernando 
dc.contributor.authorGonzález López, Juan Antonio Mariano 
dc.contributor.authorCobos Huerga, Ana 
dc.contributor.authorGarcía de la Fuente, Isaías Laudelino 
dc.contributor.authorSanz, Luis Felipe
dc.date.accessioned2018-09-11T09:36:22Z
dc.date.available2018-09-11T09:36:22Z
dc.date.issued2018
dc.identifier.citationThe Journal of Chemical Thermodynamics, Marzo 2018, vol. 118. p. 175–187es
dc.identifier.issn0021-9614es
dc.identifier.urihttp://uvadoc.uva.es/handle/10324/31504
dc.descriptionProducción Científicaes
dc.description.abstractRelative permittivities at 1 MHz and at (293.15-303.15) K are reported for the binary systems N,N-dimethylacetamide (DMA) + N-propylpropan-1-amine (DPA), + N-butylbutan-1-amine (DBA), + butan-1-amine (BA) or + hexan-1-amine (HxA) and for N,N-dimethylformamide (DMF) + aniline. The excess permittivities are large and negative for systems with DMA, whereas they are large and positive for the aniline mixture. From the analysis of these excess permittivity data and of measurements previously reported, it is concluded: (i) the main contribution to the excess permittivity in systems with linear amines arises from the breaking of interactions between like molecules; (ii) in the DMF + aniline mixture, interactions between unlike molecules contribute positively to the excess permittivity, and such a contribution is dominant; (iii) longer linear amines are better breakers of the amide-amide interactions; (iv) interactions between unlike molecules are more easily formed when shorter linear amines, or DMF, participate. These findings are confirmed by a general study conducted in terms of excess values of molar orientational and induced polarizabilities and of the relative Kirkwood correlation factors for systems and components. The ERAS model is also applied to amide + amine mixtures. ERAS represents rather accurately the excess enthalpies and volumes of the mentioned systems. The variation of the cross-association equilibrium constants, determined using ERAS, with the molecular structure is in agreement with that observed for the excess permittivity.es
dc.format.mimetypeapplication/pdfes
dc.language.isospaes
dc.publisherElsevieres
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.classificationAmideses
dc.subject.classificationAmineses
dc.subject.classificationPermittivityes
dc.subject.classificationKirkwood correlation factores
dc.subject.classificationExcess functionses
dc.subject.classificationERASes
dc.titleThermodynamics of amide + amine mixtures. 4. Relative permittivities of N,N-dimethylacetamide + N-propylpropan-1-amine, + N-butylbutan-1-amine, + butan-1-amine, or + hexan-1-amine systems and of N,N-dimethylformamide + aniline mixture at several temperatures. Characterization of amine + amide systems using ERASes
dc.typeinfo:eu-repo/semantics/articlees
dc.identifier.doi10.1016/j.jct.2017.11.011es
dc.identifier.publicationfirstpage175es
dc.identifier.publicationlastpage187es
dc.identifier.publicationtitleThe Journal of Chemical Thermodynamicses
dc.identifier.publicationvolume118es
dc.peerreviewedSIes
dc.description.projectThe authors gratefully acknowledge the financial support received from the Consejería de Educación y Cultura of Junta de Castilla y León, under Project BU034U16. F. Hevia and A. Cobos are grateful to Ministerio de Educación, Cultura y Deporte for the grants FPU14/04104 and FPU15/05456 respectively.es
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International


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