[Au III (N^N)Br 2 ](PF 6 ): A Class of Antibacterial and Antibiofilm Complexes (N^N = 2,2'-Bipyridine and 1,10-Phenanthroline Derivatives).

A series of new complexes of general formula [Au III (N^N)Br 2 ](PF 6 ) (N^N = 2,2'-bipyridine and 1,10-phenanthroline derivatives) were prepared and characterized by spectroscopic, electrochemical, and diffractometric techniques and tested against Gram-positive and Gram-negative bacterial strains ( Staphylococcus aureus , Streptococcus intermedius , Pseudomonas aeruginosa , and Escherichia coli ), showing promising antibacterial and antibiofilm properties.