Manganese Oxydiacetate Complexes: Synthesis, Structure and Magnetic Properties (Articolo in rivista)

Type
Label
  • Manganese Oxydiacetate Complexes: Synthesis, Structure and Magnetic Properties (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1002/ejic.200300506 (literal)
Alternative label
  • Grirrane, Abdessamad; Pastor, Antonio; Álvarez, Eleuterio; Mealli, Carlo; Ienco, Andrea; Rosa, Patrick; Montilla, Francisco; Galindo, Agustin (2004)
    Manganese Oxydiacetate Complexes: Synthesis, Structure and Magnetic Properties
    in European journal of inorganic chemistry (Print); WILEY-V C H VERLAG GMBH, WEINHEIM (Germania)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Grirrane, Abdessamad; Pastor, Antonio; Álvarez, Eleuterio; Mealli, Carlo; Ienco, Andrea; Rosa, Patrick; Montilla, Francisco; Galindo, Agustin (literal)
Pagina inizio
  • 707 (literal)
Pagina fine
  • 717 (literal)
Rivista
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  • 11 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Sevilla, Dept Quim Inorgan, E-41071 Seville, Spain Inst Invest Quim, CSIC, Seville 41092, Spain ICCOM, CNR, I-50132 Florence, Italy Univ Florence, LAMM, I-50019 Sesto Fiorentino, FI, Italy (literal)
Titolo
  • Manganese Oxydiacetate Complexes: Synthesis, Structure and Magnetic Properties (literal)
Abstract
  • The aerobic aqueous solution syntheses and structures of monomeric and polymeric Mn-II complexes containing the oxydiacetate ligand [O(CH2COO)(2)(2-)= oda] are reported. The magnetic properties of the polymeric products have also been investigated. The initially obtained species [{Mn(oda)(H2O)}(H2O)-H-.](n) (1) has been reacted with bidentate or tridentate N-donor ligands such as o-phenanthroline (phen), 2,2'-bipyridine (bipy) and 2,2':6,2\"-terpyridine (terpy) to give the complexes [{Mn(oda)(phen)}(.)4H(2)O](n) (2), [Mn(oda)(bipy)(H2O)](.)2H(2)O (3) and [Mn(oda)(terpy)](.)2H(2)O (4), respectively. Species 1-4 are the first Mn-oda structures determined by X-ray methods. In all cases, the oda acts as a tridentate ligand toward one metal and adopts the typical planar arrangement. However, while the 3 and 4 are monomers, 2 and I are polymers as oda exploits both atoms of its carboxylate groups to coordinate other metals; 1 consists of a three-dimensional diamond-type network, while 2 is one-dimensional, consisting of an extended chain of {Mn(oda)(phen)} subunits. For both compounds, magnetic susceptibility measurements down to 2 K showed only weak antiferromagnetic interactions between high-spin Mn-II ions. Despite the expectedly similar coordinating capabilities of N-donor ligands, the bipy complex 3 is a monomer with the six-coordination completed by one water ligand. The tridentate nature of simultaneously present oda and terpy ligands excludes the coordination of water in complex 4, the geometry of which is distorted from the octahedron, most likely due to a peculiar packing effect. Finally, the known five-coordinate complex [MnCl2(terpy)] (5), a side product of our synthetic experiments, has also been structurally characterized. (literal)
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