Sertcelik, MustafaTercan, BarisSahin, ErtanNecefoglu, HacaliHokelek, Tuncer2024-09-292024-09-2920092056-9890https://doi.org/10.1107/S1600536809006345https://hdl.handle.net/20.500.14619/5963In the title centrosymmetric mononuclear Ni-II compound, [Ni(C8H5O3)(2)(C10H14N2O)(2)(H2O)(2)], the central Ni-II atom is coordinated by two O atoms from two 4-formylbenzoate (FOB) ligands, two O atoms from two water molecules and two N atoms from two diethylnicotinamide (DENA) ligands. The coordination geometry is slightly distorted octahedral, with four O atoms in the equatorial plane and two N atoms in axial positions. Intramolecular O-H center dot center dot center dot O hydrogen bonds are observed. In the crystal structure, molecules are linked into chains along the a axis by intermolecular O-H center dot center dot center dot O hydrogen bonds. The structure is further stabilized by pi-pi interactions between the pyridine rings of DENA units, with a centroid-centroid distance of 3.668 (2) angstrom.eninfo:eu-repo/semantics/openAccessMolecular-StructureCrystalArticle10.1107/S16005368090063452-s2.0-62149128622U86821582098Q3M32665WOS:000264796100068Q4