Polymeric chains, hydrogen bonds and magnetism in Nd(III) adipates

ECHEVERRÍA, GUSTAVO; PUNTE, GRACIELA; SIVES, FLAVIO R.; BRUSAU, ELENA V.; PEDREGOSA, JOSE; NARDA, GRISELDA; ELLENA, JAVIER

PHYSICA B - CONDENSED MATTER

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2004 vol. 354 p. 377 - 380

0921-4526

An AC susceptibility study of [Nd2(O2C(CH2)4CO2)3(H2O)2] (1) obtained from a solution at ambient conditions was performed in the range 14?320 K. An ordering transition, TC=280(2) K, not related to a structural phase transition, a ferromagnetic like Curie?Weiss behavior above TC, an antiferromagnetic like dependence of w01 at the lowest temperatures and a non-linear thermal dependence of w01 in the in-between region have been observed. Samples prepared by hydration of 1 during different periods showed enhancement of the observed features. Links between watercontent, crystal structure and magnetic response are discussed.