Green Synthesis, Structural Clarification, and Spectral Analysis of Schiff Base Ni(II) and Cu(II) Complexes Based on Pyridines With Associated Biological Significance: Schiff Base Complexes, Pyridine Ligands, Green Synthesis, Nickel (II), Copper (II), and Spectral Characterization. jar 2026, 30 (1), 01-08. https://doi.org/10.65540/jar.v30i1.1360.