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Inicio » Actividades I+D > Publicaciones 2002 > A discrete dinuclear Cu(II)-Gd(III) comp...
artículo con referato
"A discrete dinuclear Cu(II)-Gd(III) complex derived from a Schiff base ligand, [CuGd(ems)(NO3)3H2O]Cu(ems) (ems: N,N′-ethylene-bis-5-methoxy salicylaldiimine)"
A.M. Atria, Y. Moreno, E. Spodine, M.T. Garland and R.F. Baggio
Inorg. Chim. Acta 335 (2002) 1-6
A Cu(II)-Gd(III) heteronuclear complex with N,N′-ethylene-bis-5-methoxy salicylaldiimine (ems) as ligand has been synthesized. The complex crystallizes in the monoclinic system C2/c space group. The structure consists of two different discrete molecules: a mononuclear unit containing a single Cu(II) center, and a dinuclear one containing both a nine coordinated Gd(III) plus a four coordinated Cu(II) cation [CuGd(H2O)(NO3)(ems)]. The complex was characterized by magnetic susceptibility and electron paramagnetic resonance. The Cu(II)-Gd(III) complex presents a ferromagnetic interaction (J=1.88 cm-1); its effective magnetic moment was found to increase with decreasing temperature. Both electronic and structural parameters are shown to influence the magnitude of the magnetic interaction.
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