Structural versatility of six transition metal complexes based on M(II)(2,2′-biimidazole) building blocks and co-ligands

The crystal packing of all six complexes shows that cationic M(II)(2,2′-biimidazole) fragments are self-assembled to construct the 3D supramolecular networks by hydrogen bonding and π-π interactions. The choice of inorganic counter anions and co-ligands has great influence on the experimental productions.