Poly[μ(6)-adipato-diaquadi-μ(2)-oxalato-digadolinium(III)].

In the centrosymmetric title compound, Gd(2)(C(6)H(8)O(4))(C(2)O(4))(2)(H(2)O)(2), the Gd(3+) cations are each coordinated by nine O atoms, three from adipate anions, two from oxalate anions and one from an aqua ligand, completing a distorted tricapped trigonal-prismatic geometry. These tricapped trigonal prisms are bridged by the adipate ligands, generating layers lying parallel to (010). The coordination polymer layers are linked into a three-dimensional framework by the rigid oxalate ligands. The adipate and oxalate ions are all located on centers of inversion. A part of the adipate anion is disordered over two positions in a 0.75:0.25 ratio.