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dc.contributor.author
Santana, Ricardo C.
dc.contributor.author
Ferreira, Bruno N.
dc.contributor.author
Sabino, José
dc.contributor.author
Carvalho, Jesiel
dc.contributor.author
Peña, Octavio
dc.contributor.author
Calvo, Rafael
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dc.date.available
2017-06-23T18:41:35Z
dc.date.issued
2012-10
dc.identifier.citation
Santana, Ricardo C.; Ferreira, Bruno N.; Sabino, José; Carvalho, Jesiel; Peña, Octavio; et al.; Structure and magnetism of catena-poly[copper(II)-µ-dichloro-L-lysine]hemihydrate. Copper chains with monochloride bridges; Elsevier; Polyhedron; 47; 1; 10-2012; 53-59
dc.identifier.issn
0277-5387
dc.identifier.uri
http://hdl.handle.net/11336/18761
dc.description.abstract
We report the preparation and characterization by elemental analysis, infrared (IR), single crystal X-ray diffraction, magnetic measurements and electron paramagnetic resonance (EPR) of the new compound catena-poly[copper(II)-l-dichloro-L-lysine]hemihydrate, with formula C6H14Cl2CuN2O2-H2O)0.5, here after called [Cu(lys)Cl2]. The compound crystallizes in the space group C2 with copper ions in a square pyramidal coordination, and the structure consists of zigzag chains along the b axis bridged by equatorial- apical chlorine bonds with Cu–Cu distance of 3.5414(4) Å, and a small Cu–Cl–Cu angle of 85.47(6)º. Magnetic susceptibility and isothermal magnetization curves reveals a weak antiferromagnetic interaction 2J =-0.30(2) cm-1 supported by the Cu–Cl–Cu bridge connecting CuII neighbors in the chains. EPR spectra at 34.0 GHz were obtained in powdered samples and in a single crystal with B0 in three orthogonal planes. Assuming an axially symmetric molecular g-matrix, we obtained principal g-values g// = 2.2794(9) and g ? ¼ 2:0489ð3Þ from the crystal g-matrix calculated using the observed angular variation of the EPR line position. The angular variation of the line width, largest along the chain direction, is attributed to dipolar couplings between CuII ions in the lattice. The magnetic and EPR results are discussed in terms of the exchange couplings.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Lisina
dc.subject
Estructura
dc.subject
Magnetismo
dc.subject
Cadena de Espines
dc.subject.classification
Otras Ciencias Químicas
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Structure and magnetism of catena-poly[copper(II)-µ-dichloro-L-lysine]hemihydrate. Copper chains with monochloride bridges
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-06-21T18:38:05Z
dc.journal.volume
47
dc.journal.number
1
dc.journal.pagination
53-59
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
New York
dc.description.fil
Fil: Santana, Ricardo C.. Universidade Federal de Goias; Brasil
dc.description.fil
Fil: Ferreira, Bruno N.. Universidade Federal de Goias; Brasil
dc.description.fil
Fil: Sabino, José. Universidade Federal de Goias; Brasil
dc.description.fil
Fil: Carvalho, Jesiel. Universidade Federal de Goias; Brasil
dc.description.fil
Fil: Peña, Octavio. Universite de Rennes I; Francia
dc.description.fil
Fil: Calvo, Rafael. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.journal.title
Polyhedron
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0277538712006201
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.poly.2012.08.045
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