2,2' bipyridine 2,2'-Dipyridyl Animals Anti-Infective Agents Anti-microbial activity Antimicrobial activity Bacteria Bacterial Infections Chelation Complexation Computation theory Coordination Complexes Coordination reactions Copper Copper compounds Crystal structure Crystallography, X-Ray Cu complexes Cu(II) complex Cyclic voltammetry DFT calculation DNA DNA binding Density functional theory Functional groups Fungi Humans Hydrazone Hydrazones Intercalating Agents