主题词：Synthesis and biological activity; Metal complexes synthesis and properties; Synthesis and Characterization of Heterocyclic Compounds; Analytical Chemistry and Chromatography; Organometallic Complex Synthesis and Catalysis; Analytical Methods in Pharmaceuticals; Inorganic and Organometallic Chemistry; Multicomponent Synthesis of Heterocycles; Synthetic Organic Chemistry Methods; Analytical chemistry methods development; Computational Drug Discovery Methods; Corrosion Behavior and Inhibition; Pesticide Residue Analysis and Safety; Analytical Chemistry and Sensors; Adsorption and biosorption for pollutant removal; Phytochemicals and Antioxidant Activities; Heavy metals in environment; Essential Oils and Antimicrobial Activity; Extraction and Separation Processes; Natural Antidiabetic Agents Studies; Asymmetric Hydrogenation and Catalysis; Phytochemistry and Biological Activities; Chemical Synthesis and Reactions; Nanomaterials for catalytic reactions; Molecular spectroscopy and chirality