Crystal Structure Of Trans-DiAquaBis(4-CyanoBenzoato-Κo)Bis(N,N-DiEthylNicotinamide-Κn)Zinc(Ii)
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In the crystal, the title centrosymmetric ZnII complex molecules are linked by O—H⋯O hydrogen bonds into supramolecular chains propagating along the  direction., In the title complex, [Zn(C8H4NO2)2(C10H14N2O)2(H2O)2], the ZnII cation, located on an inversion centre, is coordinated by two water molecules, two 4-cyanobenzoate (CB) anions and two diethylnicotinamide (DENA) ligands in a distorted N2O4 octahedral geometry. In the molecule, the dihedral angle between the planar carboxylate group and the adjacent benzene ring is 9.50 (14)°, while the benzene and pyridine rings are oriented at a dihedral angle of 56.99 (5)°. The water molecules exhibit both an intramolecular hydrogen bond [to the non-coordinating carboxylate O atom, enclosing an S(6) hydrogen-bonding motif, where O⋯O = 2.6419 (19) Å] and an intermolecular hydrogen bond [to the amide carbonyl O atom, enclosing an R 2 2(16) ring motif, where O⋯O = 2.827 (2) Å]; the latter lead to the formation of supramolecular chains propagating along the  direction.