SYNTHESIS AND SPECTROSCOPIC STUDY OF COMPLEX COMPOUNDS Mn(II), Co(II), Cu(II) AND Zn WITH 5-AMINO-2-MERCAPTOBENZIMIDAZOLE

Authors

Lobar GAPUROVA, National University of Uzbekistan, Tashkent, UzbekistanFollow
Dilnoza RAKHMONOVA, National University of Uzbekistan, Tashkent, UzbekistanFollow
Shakhnoza KADIROVA, National University of Uzbekistan, Tashkent, UzbekistanFollow

Abstract

The aim of this work is to study the effect of the nature of electron-donor and electron-withdrawing substituents in the molecules of heterocyclic ligands, the nature of acidoligands and transition metal ions on the properties of the synthesized coordination compounds. A method for the synthesis of new complex compounds of Mn (II), Cо (II), Cu (II) and Zn with 5-amino-2-mercaptobenzimidazole has been developed and the composition and structure of the synthesized complex compounds have been studied using modern physicochemical methods, such as elemental, thermogravimetric, X-ray phase analysis and IR spectroscopy. Coordination competing donor centers, electronic and geometric structures of the ligand molecule were studied using quantum-chemical calculations in the Gaussian09 LanL2DZ software package. It was shown that during the formation of a metal complex, the ligand 5-amino-2-mercaptobenzimidazole is coordinated through the localized nitrogen atom of the imidazole ring.

Recommended Citation

GAPUROVA, Lobar; RAKHMONOVA, Dilnoza; and KADIROVA, Shakhnoza (2022) "SYNTHESIS AND SPECTROSCOPIC STUDY OF COMPLEX COMPOUNDS Mn(II), Co(II), Cu(II) AND Zn WITH 5-AMINO-2-MERCAPTOBENZIMIDAZOLE," CHEMISTRY AND CHEMICAL ENGINEERING: Vol. 2021: No. 4, Article 3.
DOI: https://doi.org/10.51348/cce202142
Available at: https://cce.researchcommons.org/journal/vol2021/iss4/3