Scheme 1From: Supramolecular architectures and structural diversity in a series of lead (II) Chelates involving 5-Chloro/Bromo thiophene-2-carboxylate and N,N’-donor ligandsCoordination modes of 5-CTPC, 5-BTPC and acetate. (a) X = Cl in 4 (b) X = Cl, Br in 2 and 4 respectively, where M = Pb.Back to article page