Two new Pb(II) coordination polymers, [Pb2(μ-4,4′-bipy) (μ-2-sb)2(DMF)] n and {[Pb2(μ-4,4′-bipy) (μ-2-sb)2(H2O)2] · H2O} n (4,4′-bipy = 4,4′-bipyridine and 2-H2sb = 2-sufobenzoic acid)

Two new 2D Pb2(μ-4,4′-bipy)(μ-2-sb)2 coordination polymers, [Pb2(μ-4,4′-bipy)(μ-2-sb)2(DMF)] n (1) and {[Pb2(μ-4,4′-bipy)(μ-2-sb)2(H2O)2] · H2O} n (2), have been synthesized, characterized and studied by X-ray crystallography. The structural studies show the Pb atoms to have seven- and eight-coordinate holodirected geometries.