Synthesis and spectroscopic investigations of Au(III) seleno-organic complexes

Abstract

ABSTRACT. Heterocyclic pyridazine continues to attract great interest, mainly arising from a large variety of interesting pharmacological activities, herbicides, insecticides, and fungicides. On the other hand, the current interest in selenium-containing heterocycles is a result of their chemical properties and biological activities. In addition to the many recent publications dealing with the pharmacological potential of a selenium compound, new active formulations are an attractive target for chemical research. 2-((3-cyano-4,6-dimethylpyridin-2-yl)selanyl) acetic acid (pyd-Se), 2-((4-cyano-5,6-diphenylpyridazin-3-yl)selanyl)acetic acid (pydz-Se) and 2-((4,6-dimethyl quinolin-2-yl)selanyl)acetic acid (quin-Se) reacts with gold(III) chloride to produce metal ion complexes of specific composition. These synthesized complexes were characterized by elemental analyses, molar conductivity, FTIR, ¹H NMR and transmission electron microscopy (TEM) investigations. The complexes were found to have the formulas [Au(pyd-Se)₂]Cl, [Au(pydz-Se)₂]Cl and Au(quin-Se)₂]Cl, respectively.

KEY WORDS: Au(III), Organoselenium, Complexation, FTIR, ¹H NMR, TEM

Bull. Chem. Soc. Ethiop. 2023, 37(5), 1141-1150.                                                           

DOI: https://dx.doi.org/10.4314/bcse.v37i5.7