*National University of Uzbekistan named after Mirzo Ulugbek, Uzbekistan
**Navoi State Pedagogical Institute, Uzbekistan
Online published on 10 August, 2020.
Research of a structure of complexes of transitive metals with multifunctional polidentant ligands, executed last years, have shown their perspectivity in the decision of questions at issue of coordination chemistry regarding studying of competitive coordination donors the centres in molecules heterocyclic ligands.
Semi Empirical, Quantum-Chemical Calculation, MNDO, Electronic Structures, Reactionary Ability