Hydrogen bonding effects on topological structures of two supramolecular transition metal coordination complexes based on organosulphonate ligands

The syntheses, X-ray crystal structures and topological analyses of two supramolecular coordination complexes, [Co(H2O)4(ps)2] 1 and [Cu(H2O)2(ps)2] 2 (ps− = pyridine-3-sulfonic anion), are reported. Although the basic coordination environments and patterns around the metal centers of 1 and 2 are similar, the overall topologies of the two complexes are very different due to the formation of distinct hydrogen bonding interactions resulting from organosulphonate ligands.