Isomorphism and disorder in o-chlorohalobenzenes studied by NQR

Autores
Pérez, Silvina C.; Wolfenson, Alberto; Zuriaga, Mariano
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Pérez, Silvina C. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Pérez, Silvina C. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.
Fil: Pérez, Silvina C. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.
Fil: Wolfenson, Alberto. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Wolfenson, Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.
Fil: Wolfenson, Alberto. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.
Fil: Zuriaga, Mariano. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Zuriaga, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.
Fil: Zuriaga, Mariano. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.
In this work we present experimental results that allow to characterize different solid modifications found in o-chlorohalobenzenes. Three disordered phases have been found in o-chlorobromobenzene. The stable phase at high temperature (phase I) is also obtained by quenching the sample at 77 K. Slow cooling allow to obtain the low temperature phase III which, on heating, transforms to phase II at 183 K and this, in turns, transforms to phase I at T210 K. The disorder evidenced through the Nuclear Quadrupole Resonance spectra, is attributed to a random occupation of chlorine and bromine sites. In all phases there is evidence of molecular reorientations out of the benzene ring plane around the pseudosymmetry axis between the atoms of Cl and Br. In o-chlorofluorobenzene two phases have been found depending on the cooling rate. One phase is disordered due to the random exchange of the occupation of Cl and F sites. In this case, there is also evidence of molecular reorientations out of the benzene ring plane, but in this case the reorientation is around the pseudo-symmetry axis that pass through the C?Cl bonds. Comparisons with the behavior of o-dichlorobenzene are also made.
http://www.sciencedirect.com/science/article/pii/S0926204013000933
publishedVersion
Fil: Pérez, Silvina C. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Pérez, Silvina C. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.
Fil: Pérez, Silvina C. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.
Fil: Wolfenson, Alberto. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Wolfenson, Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.
Fil: Wolfenson, Alberto. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.
Fil: Zuriaga, Mariano. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Zuriaga, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.
Fil: Zuriaga, Mariano. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.
Física de los Materiales Condensados
Fuente
ISSN: 0926-2040
Materia
35Cl NQR characterization of different solid phases in o-chlorohalobenzenes
Experimental evidence of orientational disorder
Experimental evidence of out of plane molecular reorientations
Isomorphism
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Repositorio
Repositorio Digital Universitario (UNC)
Institución
Universidad Nacional de Córdoba
OAI Identificador
oai:rdu.unc.edu.ar:11086/28148
Acceder
id RDUUNC_ac5f4cd6e8d8d1c862e0ce1e1c7689fd
oai_identifier_str oai:rdu.unc.edu.ar:11086/28148
network_acronym_str RDUUNC
repository_id_str 2572
network_name_str Repositorio Digital Universitario (UNC)
spelling Isomorphism and disorder in o-chlorohalobenzenes studied by NQRPérez, Silvina C.Wolfenson, AlbertoZuriaga, Mariano35Cl NQR characterization of different solid phases in o-chlorohalobenzenesExperimental evidence of orientational disorderExperimental evidence of out of plane molecular reorientationsIsomorphismFil: Pérez, Silvina C. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Pérez, Silvina C. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.Fil: Pérez, Silvina C. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.Fil: Wolfenson, Alberto. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Wolfenson, Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.Fil: Wolfenson, Alberto. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.Fil: Zuriaga, Mariano. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Zuriaga, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.Fil: Zuriaga, Mariano. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.In this work we present experimental results that allow to characterize different solid modifications found in o-chlorohalobenzenes. Three disordered phases have been found in o-chlorobromobenzene. The stable phase at high temperature (phase I) is also obtained by quenching the sample at 77 K. Slow cooling allow to obtain the low temperature phase III which, on heating, transforms to phase II at 183 K and this, in turns, transforms to phase I at T210 K. The disorder evidenced through the Nuclear Quadrupole Resonance spectra, is attributed to a random occupation of chlorine and bromine sites. In all phases there is evidence of molecular reorientations out of the benzene ring plane around the pseudosymmetry axis between the atoms of Cl and Br. In o-chlorofluorobenzene two phases have been found depending on the cooling rate. One phase is disordered due to the random exchange of the occupation of Cl and F sites. In this case, there is also evidence of molecular reorientations out of the benzene ring plane, but in this case the reorientation is around the pseudo-symmetry axis that pass through the C?Cl bonds. Comparisons with the behavior of o-dichlorobenzene are also made.http://www.sciencedirect.com/science/article/pii/S0926204013000933publishedVersionFil: Pérez, Silvina C. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Pérez, Silvina C. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.Fil: Pérez, Silvina C. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.Fil: Wolfenson, Alberto. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Wolfenson, Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.Fil: Wolfenson, Alberto. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.Fil: Zuriaga, Mariano. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Zuriaga, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.Fil: Zuriaga, Mariano. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.Física de los Materiales Condensados2014info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/11086/28148https://doi.org/10.1016/j.ssnmr.2013.12.002https://doi.org/10.1016/j.ssnmr.2013.12.002ISSN: 0926-2040reponame:Repositorio Digital Universitario (UNC)instname:Universidad Nacional de Córdobainstacron:UNCenginfo:eu-repo/semantics/openAccess2025-10-16T09:28:16Zoai:rdu.unc.edu.ar:11086/28148Institucionalhttps://rdu.unc.edu.ar/Universidad públicaNo correspondehttp://rdu.unc.edu.ar/oai/snrdoca.unc@gmail.comArgentinaNo correspondeNo correspondeNo correspondeopendoar:25722025-10-16 09:28:16.534Repositorio Digital Universitario (UNC) - Universidad Nacional de Córdobafalse
dc.title.none.fl_str_mv Isomorphism and disorder in o-chlorohalobenzenes studied by NQR
title Isomorphism and disorder in o-chlorohalobenzenes studied by NQR
spellingShingle Isomorphism and disorder in o-chlorohalobenzenes studied by NQR
Pérez, Silvina C.
35Cl NQR characterization of different solid phases in o-chlorohalobenzenes
Experimental evidence of orientational disorder
Experimental evidence of out of plane molecular reorientations
Isomorphism
title_short Isomorphism and disorder in o-chlorohalobenzenes studied by NQR
title_full Isomorphism and disorder in o-chlorohalobenzenes studied by NQR
title_fullStr Isomorphism and disorder in o-chlorohalobenzenes studied by NQR
title_full_unstemmed Isomorphism and disorder in o-chlorohalobenzenes studied by NQR
title_sort Isomorphism and disorder in o-chlorohalobenzenes studied by NQR
dc.creator.none.fl_str_mv Pérez, Silvina C.
Wolfenson, Alberto
Zuriaga, Mariano
author Pérez, Silvina C.
author_facet Pérez, Silvina C.
Wolfenson, Alberto
Zuriaga, Mariano
author_role author
author2 Wolfenson, Alberto
Zuriaga, Mariano
author2_role author
author
dc.subject.none.fl_str_mv 35Cl NQR characterization of different solid phases in o-chlorohalobenzenes
Experimental evidence of orientational disorder
Experimental evidence of out of plane molecular reorientations
Isomorphism
topic 35Cl NQR characterization of different solid phases in o-chlorohalobenzenes
Experimental evidence of orientational disorder
Experimental evidence of out of plane molecular reorientations
Isomorphism
dc.description.none.fl_txt_mv Fil: Pérez, Silvina C. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Pérez, Silvina C. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.
Fil: Pérez, Silvina C. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.
Fil: Wolfenson, Alberto. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Wolfenson, Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.
Fil: Wolfenson, Alberto. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.
Fil: Zuriaga, Mariano. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Zuriaga, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.
Fil: Zuriaga, Mariano. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.
In this work we present experimental results that allow to characterize different solid modifications found in o-chlorohalobenzenes. Three disordered phases have been found in o-chlorobromobenzene. The stable phase at high temperature (phase I) is also obtained by quenching the sample at 77 K. Slow cooling allow to obtain the low temperature phase III which, on heating, transforms to phase II at 183 K and this, in turns, transforms to phase I at T210 K. The disorder evidenced through the Nuclear Quadrupole Resonance spectra, is attributed to a random occupation of chlorine and bromine sites. In all phases there is evidence of molecular reorientations out of the benzene ring plane around the pseudosymmetry axis between the atoms of Cl and Br. In o-chlorofluorobenzene two phases have been found depending on the cooling rate. One phase is disordered due to the random exchange of the occupation of Cl and F sites. In this case, there is also evidence of molecular reorientations out of the benzene ring plane, but in this case the reorientation is around the pseudo-symmetry axis that pass through the C?Cl bonds. Comparisons with the behavior of o-dichlorobenzene are also made.
http://www.sciencedirect.com/science/article/pii/S0926204013000933
publishedVersion
Fil: Pérez, Silvina C. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Pérez, Silvina C. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.
Fil: Pérez, Silvina C. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.
Fil: Wolfenson, Alberto. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Wolfenson, Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.
Fil: Wolfenson, Alberto. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.
Fil: Zuriaga, Mariano. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
Fil: Zuriaga, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina.
Fil: Zuriaga, Mariano. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina.
Física de los Materiales Condensados
description Fil: Pérez, Silvina C. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
publishDate 2014
dc.date.none.fl_str_mv 2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11086/28148
https://doi.org/10.1016/j.ssnmr.2013.12.002
https://doi.org/10.1016/j.ssnmr.2013.12.002
url http://hdl.handle.net/11086/28148
https://doi.org/10.1016/j.ssnmr.2013.12.002
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv ISSN: 0926-2040
reponame:Repositorio Digital Universitario (UNC)
instname:Universidad Nacional de Córdoba
instacron:UNC
reponame_str Repositorio Digital Universitario (UNC)
collection Repositorio Digital Universitario (UNC)
instname_str Universidad Nacional de Córdoba
instacron_str UNC
institution UNC
repository.name.fl_str_mv Repositorio Digital Universitario (UNC) - Universidad Nacional de Córdoba
repository.mail.fl_str_mv oca.unc@gmail.com
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score 12.712165

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