Polymetallic oxalate-based 2D magnets: Soluble molecular precursors for the nanostructuration of magnetic oxides (Articolo in rivista)

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Label
  • Polymetallic oxalate-based 2D magnets: Soluble molecular precursors for the nanostructuration of magnetic oxides (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/ja100261z (literal)
Alternative label
  • E. Coronado, C. Marti-Gastaldo, J. Galan-Mascaros, M. Cavallini (2010)
    Polymetallic oxalate-based 2D magnets: Soluble molecular precursors for the nanostructuration of magnetic oxides
    in Journal of the American Chemical Society (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • E. Coronado, C. Marti-Gastaldo, J. Galan-Mascaros, M. Cavallini (literal)
Pagina inizio
  • 5456 (literal)
Pagina fine
  • 5468 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.acs.org/doi/abs/10.1021/ja100261z (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 132 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 12 (literal)
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  • 15 (literal)
Note
  • Scopus (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Valencia, Inst Ciencia Mol, Paterna 46980, Spain ICIQ, Inst Chem Res Catalonia, Tarragona 43007, Spain ISMN, CNR, I-40129 Bologna, Italy (literal)
Titolo
  • Polymetallic oxalate-based 2D magnets: Soluble molecular precursors for the nanostructuration of magnetic oxides (literal)
Abstract
  • Here we describe the synthesis and magnetic characterization of a family of 2D polymetallic oxalate-bridged polymeric networks with general formula [M II(H2O)2]3[MIII(ox) 3]2(18-crown-6)2 (MIII = Cr, Fe; MII = Mn, Fe, Co, Ni; 18-crown-6 = C12H24O 6). Depending on the nature of the trivalent metal ion, they exhibit ferro- (Cr3+) or ferrimagnetic (Fe3+) ordering in the 3.6-20 K interval. In contrast with most of the oxalate-bridged CPs reported so far, these complexes do not need any additional templating cation for their assembly and represent the first series of oxalate-based polymeric networks which can be considered intrinsically neutral. As previously observed for other crown ether containing oxalate-based coordination polymers, these compounds are soluble in water, whereas they remain nonsoluble in other organic solvents. Furthermore, when these molecular precursors are subjected to a thermally controlled decomposition process, pure phases of mixed oxides with spinel-like structures can be conveniently generated. Among the resulting materials, the (Mn,Co,Fe)3O4 derivative is particularly remarkable, since it behaves as a magnet at room temperature. Finally, taking advantage of the solubility of these molecular precursors, this room-temperature magnetic oxide has been successfully nanostructured onto a Si(110) substrate via the lithographically controlled wetting (LCW) technique. (literal)
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