Exploring the novel aryltellurium(IV) complexes: Synthesis, characterization, antioxidant, antimicrobial, antimalarial, theoretical and ADMET studies

The current research study is focused on biological efficacy of newly synthesized Schiff base ligand 1,1 '-(ethane-1,2-diylbis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-ol) (HNED) and its aryltellurium(IV) complexes. The synthesized compounds were comprehensively characterized by physical and spectral investigations such as molar conductance, Powder-XRD, EDAX, elemental, TGA-DTG analysis, mass, FT-IR, UV-Vis, 13C NMR and 1H NMR spectroscopy. The molecular and electronic structural characteristics of the synthesized compounds were explored by theoretical chemical estimations which was based on density functional theory (DFT). The outcome of the spectroscopic and theoretical data revealed that the Schiff base HNED was coordinated with tellurium ion through oxygen and nitrogen atoms, suggesting distorted octahedral geometry of complexes. The compounds displayed mild to strong antimicrobial activity against numerous microbial species, with the growth inhibitory activities of the complexes being greater than those of the Schiff base. Complexes 6c and 6f exhibited the highest scavenging ability. Complex 6a exhibited the highest efficiency in inhibiting malarial malformation. In silico molecular docking was executed to explore the binding interaction and binding energies of compound against the active site of the various receptors (3MZF, 4DXD, 3Q70 and 2GHU). The ADMET results indicated that the synthesized compounds have favorable drug-like behavior. This study suggest that the complexes may act as promising candidates for infection ailments.