versão On-line ISSN 1678-4618
CRISTOVAO, B. e FERENC, W.. Synthesis and magnetic properties of heteronuclear 3d-4f compound. Eclet. Quím. [online]. 2007, vol.32, n.3, pp. 19-23. ISSN 1678-4618. http://dx.doi.org/10.1590/S0100-46702007000300003.
A novel heteronuclear 3d-4f compound having formula NdCu3L3·13H2O (where H3L = Schiff base derived from 5-bromosalicylaldehyde and glycylglycine and L3 = C11H8 N2O4Br) was obtained. It was characterized by elemental and thermal analyses and magnetic measurements. The Cu(II)-Nd(III) compound is stable up to 323 K. During dehydration process the water molecules are lost in two stages. The magnetic susceptibility data for this complex change with temperature according to the Curie-Weiss law with Q = -35 K. The magnetic moment values decrease from 5.00µB at 303 K to 4.38µB at 76 K.
Palavras-chave : heteronuclear compound, 3d-4f compound, magnetic moment; magnetic susceptibility.