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Magneto-structural characterization of [Cu4(prz)4(CH3OH)2L 2″](CIO4)2 (L″H = 1,1-DI-(2-pyridyl)-1-methoximethanol, PRZH = pyrazole)

Authordc.contributor.authorManzur Saffie, Jorge 
Authordc.contributor.authorGarcía, A. 
Authordc.contributor.authorGarland, María Teresa 
Authordc.contributor.authorAcuña, V. 
Authordc.contributor.authorGonzalez, O. 
Authordc.contributor.authorPeña, Octavio 
Authordc.contributor.authorAtria Salas, Ana María 
Authordc.contributor.authorSpodine Spiridonova, Evgenia 
Cita de ítemdc.identifier.citationPolyhedron, Volumen 15, Issue 5-6, 1996, Pages 821-827
Abstractdc.description.abstractThe title compound [Cu2C19H20N6O7Cl](2) is a copper(II) complex, in which each bicationic moiety is bridged by two pyrazolate ligands. In the centrosymmetric, tetrameric dications pairs of copper atoms, one square planar and one square pyramidal, are bridged by an oxygen from the pyridylmethoxymethanol ligand and a pyrazolate moiety, with one example of five coordination completed by a methanol solvent molecule. These dimers are then bridged by two pyrazoles, to give the tetramer. Two perchlorate counter-anions are bound to the tetrameric unit by hydrogen bonds, which stabilize the crystal structure. The copper(II) complex presents antiferromagnetic behaviour with T-M=190 K. Supposing that the alkoxo oxygen bridge is the main pathway for the superexchange interaction, the experimental magnetic susceptibilities were fitted to the Bleaney-Bowers equation for dimers, yielding a 2J value of -211.2 cm(-1).
Publisherdc.publisherElsevier Ltd
Keywordsdc.subjectPhysical and theoretical chemistry
Keywordsdc.subjectInorganic chemistry
Keywordsdc.subjectMaterials chemistry
Títulodc.titleMagneto-structural characterization of [Cu4(prz)4(CH3OH)2L 2″](CIO4)2 (L″H = 1,1-DI-(2-pyridyl)-1-methoximethanol, PRZH = pyrazole)
Document typedc.typeArtículo de revista
Indexationuchile.indexArtículo de publicación SCOPUS
Access notedct.AccessRightsSin acceso a texto completo

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