Synthesis, structure, and biological activity of organotion compounds with Di-2-pyridylketone and phenyl(2-pyridyl) ketone 2-aminobenzoylhydrazones

The ligand behavior of di-2-pyridylketone 2-aminobenzoylhydrazone (Hdpa), and phenyl(2-pyridyl)ketone 2-aminobenzoylhydrazone (Hdpa) towards organotin derivatives was investigated. The synthesis and the IR and 119Sn NMR spectroscopic characterization of the compounds is reported, together with the X-ray crystal structures of Hdpa and Sn(C6H5)3Cl(OH2)·Hdpa, which are discussed and compared. The in vitro evaluation of antimicrobial properties revealed the strong activity of Sn(C6H5)2(Hdpa)Cl2 and Sn(C6H5)3Cl(OH2)·Hdpa complexes. None of the compounds showed genotoxicity in the Bacillus subtilis rec-assay and in the Salmonella-microsome test.