catena-Poly[4,4′-bipyridinium [[tetraaqua(pyridine-2,6-dicarboxylato-κ³O²,N,O⁶)cerate(III)]-μ-pyridine-2,6-dicarboxylato-κ⁴O²:O^2′,N,O⁶-[(pyridine-2,6-dicarboxylato-κ³O²,N,O⁶)cerate(III)]-μ-pyridine-2,6-dicarboxylato-κ⁴O²,N,O⁶:O^6′] pentahydrate]

Abstract

The title compound, {(C10H10N2)[Ce2(C7H3NO4)4(H2O)4]·5H2O}n, is composed of a one-dimensional anionic complex, a doubly protonated 4,4′-bipyridine mol­ecule as a counter-ion and five uncoordinated water mol­ecules. The anion bears two nine-coordinate CeIII ions, each with a distorted tricapped trigonal–prismatic geometry. In the crystal, inter­molecular C—H⋯O, N—H⋯O and O—H⋯O hydrogen bonds, as well as π–π inter­actions with centroid–centroid distances of 3.514 (3) Å connect the various components into a supra­molecular structure.