Structural diversity of the Ag coordination sphere in complexes of silver(I) nitrate with 3-halopyridine. Characterization of the complexes in solution and in the solid state

Silver(I) complexes [Ag(NO3)(3-Xpy)2], X=Cl (1), Br (2), I (3), were prepared and characterized by IR and NMR spectroscopy, by mass spectrometry and by powder and single-crystal X-ray analysis. Single point DFT calculations, followed by NPA and QTAIM analyses, were performed. In vitro tests of all complexes shown antibacterial activity.