During my research work I have studied the synthesis of thiohydroxamic acids as ligands for the preparation of metal complexes. The purpose of my thesis was to prepare diverse thiohydroxamic acids, their nickel(II) and ruthenium(II) complexes. After the optimization of synthetic procedures, I have successfully prepared five thiohydroxamic acids and confirmed their structure with nuclear magnetic resonance (NMR), mass and infrared (IR) spectroscopy. The acids were generally very unstable as they partially decomposed during the isolation procedure and therefore could not be isolated in pure form. The prepared acids were used in the synthesis of nickel and ruthenium complexes. Additionally, two other thiohydroxamic acids were used. I have successfully prepared five nickel and five ruthenium(II)-cymene complexes. The complexes were characterized with NMR, mass, IR, ultraviolet-visible (UV-Vis) spectroscopy and elemental analysis. With these techniques I have confirmed the structure and purity of nickel complexes, whereas I observed that ruthenium complexes were unstable in solutions.
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