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Rational Design of Homo and Hetero Hexanuclear Coordination Compounds: Syntheses and Magnetic Properties of [Cu2IIM4II] (M= Cu, Ni) Species and the Crystal Structure of {[Cu(tmen)(H2O)]2[Cu(tmen)]2[CuL](H2O)}(ClO4)4.2H2O

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Rational Design of Homo and Hetero Hexanuclear Coordination Compounds: Syntheses and Magnetic Properties of [Cu2IIM4II] (M= Cu, Ni) Species and the Crystal Structure of {[Cu(tmen)(H2O)]2[Cu(tmen)]2[CuL](H2O)}(ClO4)4.2H2O

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dc.contributor.author Aukauloo, A. es_ES
dc.contributor.author Ottenwaelder, X. es_ES
dc.contributor.author Ruiz, R. es_ES
dc.contributor.author Journaux, Y. es_ES
dc.contributor.author Pei, Y. es_ES
dc.contributor.author Rivière, E. es_ES
dc.contributor.author Muñoz Roca, María Del Carmen es_ES
dc.date.accessioned 2020-03-13T08:29:12Z
dc.date.available 2020-03-13T08:29:12Z
dc.date.issued 2000-05 es_ES
dc.identifier.issn 1434-1948 es_ES
dc.identifier.uri http://hdl.handle.net/10251/138899
dc.description.abstract [EN] New homo¿ and heterometallic hexanuclear complexes of formula {[Cu(tmen)(H2O)]2[Cu(tmen)]2[Cu2L](H2O)}(ClO4)4 · 2 H2O [Cu6¿tmen] {[Cu(pmdien)]4[Cu2L]}(ClO4)4 · 4 H2O [Cu6¿pmdien] and {[Ni(cyclam)]4[Cu2L]}(ClO4)4 · 4 H2O [Cu2Ni4¿cyclam] [H8L = tetrakis(aminomethylene)methanetetrakis(oxamic acid), tmen = N,N,N¿,N¿¿tetramethylethylenediamine, pmdien = N,N,N¿,N¿,N¿¿pentamethyldiethylenetriamine, and cyclam = 1,4,8,11¿tetraazacyclotetradecane] have been synthesized. The crystal structure of [Cu6¿tmen] has been determined by single¿crystal X¿ray diffraction. The structure consists of cationic {[Cu(tmen)(H2O)]2[Cu(tmen)]2[Cu2L](H2O)}4+ hexanuclear units. The hexanuclear cation is made up of two symmetry¿related oxamato¿bridged trinuclear units connected through the central carbon atom C(6) of the L8¿ ligand. Variable¿temperature magnetic susceptibility measurements (1.8¿300K) have been performed for these series of complexes including the dinuclear precursors of formula Na4[Cu2L] · 10.5 H2O [Cu2¿Na], (NMe4)4[Cu2L] · 4 H2O [Cu2¿NMe4] and (PPh4)4[Cu2L] · 6 H2O [Cu2¿PPh4]. The magnetic data have been interpreted. Evidence of a weak intramolecular ferromagnetic interaction between the two CuII ions in [Cu2L]4¿ has been observed. For the hexanuclear species, the interaction through the oxamato bridge was found to be equal to ¿6790, ¿2650, and ¿1643 yJ (¿342, ¿133, and ¿82cm¿1) for [Cu6¿tmen], [Cu6¿pmdien], and [Cu2Ni4¿cyclam], respectively. In these complexes, the weak intramolecular ferromagnetic coupling between the two CuII ions within the dinuclear synthon was masked by intermolecular interactions or local anisotropy. es_ES
dc.description.sponsorship This work was supported by the CNRS (France) and the DGICYT, Ministerio de Educación y Ciencia (Spain), through project PB94 1002 for post-doctoral grants. es_ES
dc.language Inglés es_ES
dc.publisher John Wiley & Sons es_ES
dc.relation.ispartof European Journal of Inorganic Chemistry es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Copper es_ES
dc.subject Nickel es_ES
dc.subject Amides es_ES
dc.subject Polynuclear complexes es_ES
dc.subject Magnetic properties es_ES
dc.subject.classification FISICA APLICADA es_ES
dc.title Rational Design of Homo and Hetero Hexanuclear Coordination Compounds: Syntheses and Magnetic Properties of [Cu2IIM4II] (M= Cu, Ni) Species and the Crystal Structure of {[Cu(tmen)(H2O)]2[Cu(tmen)]2[CuL](H2O)}(ClO4)4.2H2O es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1002/(SICI)1099-0682(200005)2000:5<951::AID-EJIC951>3.0.CO;2-R es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MEC//PB94-1002/ES/Magnetismo Molecular. De los Complejos Metálicos Mononucleares a los Polímeros de Coordinación 1D, 2D y 3D/ es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada es_ES
dc.description.bibliographicCitation Aukauloo, A.; Ottenwaelder, X.; Ruiz, R.; Journaux, Y.; Pei, Y.; Rivière, E.; Muñoz Roca, MDC. (2000). Rational Design of Homo and Hetero Hexanuclear Coordination Compounds: Syntheses and Magnetic Properties of [Cu2IIM4II] (M= Cu, Ni) Species and the Crystal Structure of {[Cu(tmen)(H2O)]2[Cu(tmen)]2[CuL](H2O)}(ClO4)4.2H2O. European Journal of Inorganic Chemistry. (5):951-957. https://doi.org/10.1002/(SICI)1099-0682(200005)2000:5<951::AID-EJIC951>3.0.CO;2-R es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1002/(SICI)1099-0682(200005)2000:5<951::AID-EJIC951>3.0.CO;2-R es_ES
dc.description.upvformatpinicio 951 es_ES
dc.description.upvformatpfin 957 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.issue 5 es_ES
dc.relation.pasarela S\17453 es_ES
dc.contributor.funder Centre National de la Recherche Scientifique, Francia
dc.contributor.funder Ministerio de Educación y Ciencia es_ES
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