Abstract
In the title complex, [Zn(C8H5O3)2(C6H6N2O)2(H2O)2], the ZnII 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 ZnII 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)°, while the pyridine ring and the benzene ring are oriented at a dihedral angle of 88.52 (4)°. The coordinating water molecule links with the carboxylate group via an O—H⋯O hydrogen bond. In the crystal, N—H⋯O and O—H⋯O hydrogen bonds, and a weak C—H⋯π interaction link the molecules into a two-dimensional network parallel to (010). These networks are linked via C—H⋯O and π–π interactions between inversion-related benzene rings [centroid–centroid distance = 3.8483 (7) Å], forming a three-dimensional supramolecular structure.
Highlights
ZnII 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 ZnII 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), while the pyridine ring and the benzene ring are oriented at a dihedral angle of
Summary
The four O atoms in the equatorial plane around the ZnII 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 coordinating water molecule links with the carboxylate group via an O—H O hydrogen bond. N—H O and O—H O hydrogen bonds, and a weak C—H interaction link the molecules into a twodimensional network parallel to (010). These networks are linked via C—H O and – interactions between inversionrelated benzene rings [centroid–centroid distance =.
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