Di-μ-aqua-bis(μ-pyridazine-4-carboxylato-κ2N:N′)bis[triaqua(pyridazine-4-carboxylato-κ2O,O′)lead(II)] dihydrate

The structure of the title compound, [Pb2(C5H3N2O2)4(H2O)6]·2H2O, is composed of dimeric molecules in which two symmetry-related Pb2+ ions are bridged by a pair of two pyridazine-4-carboxylate ligand molecules via both heterocyclic N atoms and two water O atoms. Each Pb2+ ion is also coordinated by two carboxylate O atoms and three water O atoms, leading to a highly irregular coordination polyhedron around Pb2+. The dimers are interconnected by hydrogen bonds between coordinated and uncoordinated water molecules and the carboxylate O atoms. O—H...N interactions are also present.

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