Co(II), Ni(II), Cu(II), Mn(II) ВА V(V) НИНГ ОКСАДИАЗОЛ ҲОСИЛАСИ АСОСИДАГИ АРАЛАШ МЕТАЛЛИ КОМПЛЕКС БИРИКМАЛАРИ СИНТЕЗИ ВА ТАДҚИҚОТИ

Background. According to the synthesis and properties of mixed metal complexes of 3d metals with V (V) and 5-phenyl-1,3,4-oxadiazole-2 (3H) -thione, it has not been reported in the literature. The synthesis of mixed-metal complex compounds opens up new aspects of coordination chemistry. Purpose. A procedure will be developed for the synthesis of new mixed-metal complexes of Co (II), Ni (II), Cu (II) and Mn (II) chlorides with 5-phenyl-1,3,4-oxadiazole-2 (3H) -thione based on ammonium vanadate. The study of the composition and structure of mixed metal complex compounds with modern physicochemical methods. Methodology. A technique for the synthesis of mixed-metal complex compounds has been developed. For synthesis, an aqueous solution of ammonium vanadate and metal chlorides was added to the alcohol solution of the ligand (M: M: L: 1: 1: 1: 2 mol), pH = 8. The reaction mixture was heated for 40 minutes. Originality. А procedure was developed fot the synthesis of new mixed-metal complexes of Cо(II), Ni(II), Cu(II) and Mn(II) chlorides with 5-phenyl-1,3,4-oxadiazole-2(3H)-thione based on ammonium vanadate. Coordinated competing donor centers, electronic and geometric structures of the ligand molecule were studied on the basis of the quantum-chemical software package Gaussian09 LanL2DZ. It was shown that the formation of the complex of ligand-5-phenyl-1,3,4-oxadiazole-2 (3N) -thione is partially coordinated through a localized nitrogen or sulfur atom. Findings. Coordinated competing donor centers, electronic and geometric structures of the ligand molecule were studied on the basis of the quantum-chemical software package Gaussian09 LanL2DZ. The composition and structure of the synthesized mixed-metal complex compounds were studied using elemental analysis, derivatographic analysis, and IR spectroscopy. [ABSTRACT FROM AUTHOR]