Interaction of threonine with biometal chlorides in an aqueous environment at 25°C

The method for the synthesis of complexes with transition group biometal salts with the amino acid threonine includes improvement of reaction conditions, selection of reagents and analytical methods to confirm the formation of complexes. Research purpose: obtaining complex compounds of biometals, cobalt chloride, nickel chloride and manganese chloride with the amino acid threonine, as well as the study of their physicochemical and biological properties. In the synthesis of complex compounds, the preparative method was used. Compositions of the formed crystals were analyzed by IR spectroscopy. The structure and shape of cobalt, nickel and manganese crystals were determined using a microscope. The identity of the obtained compounds was confirmed by IR spectroscopy and microscopic analyses. We can conclude that threonine in the complex is coordinated to metal ions through the oxygen atoms of the carboxyl and nitrogen groups of the amine groups.