Crystal structure and Hirshfeld surface analysis of aqua-bis-(nicotinamide-κ)bis-(2,4,6-tri-methyl-benzoato-κ)zinc.

The asymmetric unit of the title complex, [Zn(CHO)(CHNO)(HO)], contains one half of the complex mol-ecule, and the Zn cation and the water O atom lie on a twofold rotation axis. The Zn cation is coordinated by two carboxyl-ate O atoms of the two symmetry-related 2,4,6-tri-methyl-benzoate (TMB) anions and by the water O atom at distances of 2.0311 (16) and 2.076 (2) Å to form a slightly distorted trigonal-planar arrangement, while the distorted trigonal-bipyramidal coordination sphere is completed by the two pyridine N atoms of the two symmetry-related monodentate nicotinamide (NA) ligands at distances of 2.2066 (19) Å in the axial positions. In the crystal, mol-ecules are linked inter-molecular N-H⋯O and O-H⋯O hydrogen bonds with (12), (10) and (16) ring motifs, forming a double-column structure running along the -axis direction. The Hirshfeld surface analysis of the crystal structure indicates that the most important contributions for the crystal packing are from H⋯H (58.4%), H⋯C/C⋯H (20.3%) and H⋯O/O⋯H (18.3%) inter-actions.