Magnetic properties of lanthanide(III) succinates

G. A. ECHEVERRÍA; M. C. BERNINI; E. V. BRUSAU; G. E. NARDA; J. A. ELLENA; F. SIVES; G. PUNTE

Buenos Aires

Congreso; At the Frontiers of Condensed Matter III; 2006

In the last decade a great effort has been devoted to investigate the main physicochemical properties of materials constructed from metal cations and organic multifunctional anions, known as hybrid materials. They can build up open structures with pores of different sizes and supramolecular assemblies of varied dimensions. In particular when the building constituents of hybrid materials are dicarboxylate anions and Ln(III) cations, because of the various coordination modes of dicarboxylates with the Ln(III), structures with different framework that might display interesting magnetic properties can be obtained. With the main purpose to rationalized the influence of the crystal structure on the magnetic response of Ln(III) ions [where Ln= Nd, Eu, Gd, Dy, Ho, and Er] we present and discuss here the observed magnetic susceptibility behaviors as a function of the temperature, in the range of 2-300K, of two Ln(III) succinates:  Ln{2} (O_{2}C(CH_{2})_{2}CO_{2})_{3} (H_{2}O) _{4}]·6H_{2}O and Ln_{2}(O_{2}C(CH_{2})_{2}CO_{2})_{3} (H_{2}O) _{2}]·H_{2}O, which show inorganic LnO_{2} networks of different dimensionality.