DIOXIMAŢI AI Co(III) CARE CONŢIN IONUL TETRAFLUOROBORAT: SINTEZĂ, STUCTURĂ, PROPRIETĂŢI

Eduard COROPCEANU Institutul de Chimie al AŞM

Abstract

The synthesis of a serie of cobalt(III) dioximates (methylglyoxime – MH2, dimethylglyoxime – DH2, diphenilglyoxime – DfH2, 1,2-ciclohexanedionedioxime – NioxH2) has been performed, which have some additional organic ligands (thiocarbamide, pyridine, aniline, nicotinamide, sulfanilamide, ortho-phenanthroline) coordinated to the central atom. It was proved that the specific spatial arrangement of the assembled molecules depends on the nature of the axial ligands. The charge of the cationic complex is compensated by the tetrafluoroborate anion, which forms a system of hydrogen bonds with the water molecules. Several representatives of this series are good biostimulators of enzymogenes processes of some fungal strains. Keywords: coordination compounds, dioximates, cobalt(III), tetrafluoroborate anion, biostimulators.