μ-Oxalato-κ(4) O (1),O (2):O (1′),O (2′)-bis­[aqua­(2,2′-bipyridine-κN)(nitrato-κ(2) O,O′)lead(II)]

The title compound, [Pb(2)(C(2)O(4))(NO(3))(2)(C(10)H(8)N(2))(2)(H(2)O)(2)], was synthesized hydro­thermally. The binuclear complex mol­ecule is centrosymmetric, the inversion centre being located at the mid-point of the oxalate C—C bond. The Pb(II) ion is hepta­coordinated by the O atom of one water mol­ecule, two oxalate O atoms, two nitrate O atoms and two 2,2′-bipyridine N atoms, forming an irregular coordination environemnt. Inter­molecular O—H⋯O hydrogen bonds between water mol­ecules and oxalate and nitrate ions result in the formation of layers parallel to (010). π–π inter­actions between pyridine rings in adjacent layers, with centroid–centroid distances of 3.584 (2) Å, stabilize the structural set-up.