Syntheses, Structures, and Magnetic Properties of Two Gadolinium(III)–Copper(II) Coordination Polymers by a Hydrothermal Reaction

One- or three-dimensional structures of the lanthanide–transition metal coordination polymers are prepared through hydrothermal reactions. The reaction of Gd2O3, 2,5-pyridinedicarboxylic acid (H2pydc), and either Cu(OAc)2 or CuO resulted in [{Gd2Cu3(pydc)6(H2O)12}⋅4 H2O]n (1) or [{Gd4Cu2(pydc)8(H2O)12}⋅4 H2O]n (2), respectively, depending upon the coordination of the pydc ligand. The picture shows the three-dimensional wavelike structure of 2.