X-Ray Crystallography, Molecular Interactions, DFT Study, and Molecular Docking Investigation of a Novel Noncentrosymmetric Cu(II) Complex of 2,6-Dimethylpyrimidin-4-(1 H)-One Based Ligand.

A new Cu(II) complex with the monodentate ligand 2,6-dimethylpyrimidin-4-(1 H)-one, [CuCl(C₆H₈N₂O)₂H₂O]Cl.3H₂O, was synthesized and characterized by single crystal X-ray diffraction, elemental analysis, and IR spectroscopy along with detailed theoretical studies based on density functional theory (DFT) at the B3LYP-D3(BJ)/Def2-SVP method. In the structural arrangement of the title compound, the different chemical entities are connected to each other via O–H....O, O–H...Cl, and N–H...O hydrogen bonds to form a three-dimensional network as revealed by the Hirshfeld intramolecular and surface analysis. Infrared spectroscopy analysis confirms the presence of a peak at 2344 cm^{− 1} which is assigned to N = C stretching vibrations while those at 1670 and 1622 cm^{− 1} respectively correspond to the C = C asymmetric stretching vibrations. The in-silico investigation of the anti-fibrotic potential of the title compound was carried out molecular docking with the 4FUX and 4FV3 receptors alongside PIRF which is a standard show that the title compound performed better in terms of H-bond interaction as well as binding affinity. Furthermore, the presence of 3 conventional H-bond interactions in the 4FUX-Complex interaction compared to 1 for the 4FV3-PIRF makes it very obvious that the bioactivity of this complex for fibrosis is greater than that of PIRF within the limits of available data as contained in this study. [ABSTRACT FROM AUTHOR]