Abstract
The design and detailed characterization of the azo dye ligand obtained from the reaction of 4-aminoantipyrine diazonium salt with 3-hydroxybenzaldehyde (HL) and its novel metal chelates with Mn2+, Cu2+, Cd2+ and Th4+ ions have been presented. Utilizing modern spectroscopic and analytical techniques, these complexes were found to adopt an octahedral geometry, demonstrate inner sphere d2sp3 hybridization for Th(IV) complex and outer sphere sp3d2 hybridization for other complexes. Particle sizes calculated using the Debye-Scherrer equation on XRD patterns were 32.05 nm for Mn(II), 34.07 nm for Cu(II), 30.90 nm for Cd(II), and 22.05 nm for Th(IV). These substances' anticancer activity was assessed on human lung cancer cells (A-549) and pancreatic carcinoma cell lines (PANC-1). Cd(II) complex exhibited higher cytotoxicity against the A-549 cell line than the reference drug vinblastine sulfate (VinBLAStine Sulfate) which revealing its potential application as a new anticancer agent. Quantum chemical computations using the DMOL3 module's density functional theory (DFT) and molecular docking studies with the Schrödinger suite demonstrated significant inhibitory effects of the free organic compound and Cu(II) chelate on the FGFR1 protein, crucial for cell development and differentiation. Additionally, the study examined the catalytic activity of HL and its metal chelates in the oxidative degradation of methyl violet 2B dye in presence of H2O2. The order was followed by the pseudo-first-order rate constants: Th(IV) chelate (0.9556 min⁻¹) > HL (0.4911 min⁻¹) > Cu(II) chelate (0.5979 min⁻¹) > Mn(II) chelate (0.2645 min⁻¹) > Cd(II) chelate (0.2280 min⁻¹).
Published Version
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