catena-Poly[[[diaqua[3-(pyridin-4-yl)benzoato-κ2O,O′]gadolinium(III)]-bis[μ-3-(pyridin-4-yl)benzoato-κ2O:O′]] monohydrate]

Abstract

In the title coordination polymer, {[Gd(C12H8NO2)3(H2O)2]·H2O}n, the GdIII ion is ligated by one bidentate carboxylate group, four monodentate bridging carboxylate O atoms and two water molecules. The resulting GdO8 polyhedron approximates to a square antiprism. The bridging ligands link the metal ions into a [100] chain, with each pair of adjacent metal ions being bridged by two ligands. Inter-chain O—H...O and O—H...N hydrogen bonds help to establish the packing.