Crystallographic Investigation Into Tetradentate Schiff Base Complexes Including Cobalt (Ii), Nickel (Ii), And Copper (Ii)

Abstract

Tetradentate Schiff base ligands have garnered significant attention due to their versatile coordination behavior and potential applications in various fields including catalysis, material science, and bioinorganic chemistry. In this study, we report the synthesis and crystallographic characterization of tetradentate Schiff base complexes of cobalt(II), nickel(II), and copper(II). The Schiff base ligands were prepared by the condensation reaction of appropriate diamine and dialdehyde precursors. The resulting complexes were characterized by single-crystal X-ray diffraction to elucidate their structural features and coordination geometries. Additionally, spectroscopic techniques such as FT-IR, UV-Vis, and NMR spectroscopy were employed to further investigate the complexes' properties. The crystallographic analysis revealed the coordination modes of the Schiff base ligands and the coordination environments around the metal centers. Insights gained from this study contribute to the understanding of the coordination chemistry of tetradentate Schiff base complexes and may inform future research in the design of novel coordination compounds with tailored properties.