Akademik Veri Yönetim Sistemi
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, cilt.68, 2012 (ESCI)
In the title complex, [Zn(C8H5O3)(2)(C6H6N2O)(2)(H2O)(2)], the Zn II cation is located on an inversion center and is coordinated by two 4-formylbenzoate (FB) anions, two nicotinamide (NA) ligands and two water molecules. The four O atoms in the equatorial plane around the Zn-II cation form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxylate group and the adjacent benzene ring is 24.13 (8)degrees, while the pyridine ring and the benzene ring are oriented at a dihedral angle of 88.52 (4)degrees. The coordinating water molecule links with the carboxylate group via an O-H center dot center dot center dot O hydrogen bond. In the crystal, N-H center dot center dot center dot O and O-H center dot center dot center dot O hydrogen bonds, and a weak C-H center dot center dot center dot interaction link the molecules into a twodimensional network parallel to (010). These networks are linked via C-H center dot center dot center dot O and pi-'pi interactions between inversionrelated benzene rings [centroid-centroid distance = 3.8483 (7) angstrom], forming a three-dimensional supramolecular structure.