Abstract
The asymmetric unit of the title complex, [Zn(C8H7O3)2(C6H6N2O)2], contains three crystallographically independent molecules with similar configurations. The ZnII cation is coordinated by two N atoms of two nicotinamide ligands and three O atoms from two 4-methoxybenzoate anions in a distorted trigonal-bipyramidal geometry. In each independent molecule, one Zn—O bond distance [2.5181 (12), 2.5931 (12) and 2.4085 (12) Å for the three molecules] is significantly longer than the other two. In the crystal structure, extensive N—H⋯O and C—H⋯O hydrogen bonding links the molecules into a three-dimensional network. π–π contacts between the pyridine rings and between the pyridine and benzene rings [centroid–centroid distances = 3.7655 (9) and 3.8453 (10) Å, respectively] further stabilize the crystal structure.
Highlights
The asymmetric unit of the title complex, [Zn(C8H7O3)2(C6H6N2O)2], contains three crystallographically independent molecules with similar configurations
The ZnII cation is coordinated by two N atoms of two nicotinamide ligands and three O atoms from two 4-methoxybenzoate anions in a distorted trigonal-bipyramidal geometry
Nicotinamide is a form of niacin; for background to niacin, see: Krishnamachari (1974)
Summary
Tenlikd and Hacali Necefoğlud a Department of Physics, Hacettepe University, 06800 Beytepe, Ankara, Turkey, Department of Chemistry, Hitit University, 19030 Ulukavak, Çorum, Turkey, c. R factor = 0.037; wR factor = 0.092; data-to-parameter ratio = 17.3. The asymmetric unit of the title complex, [Zn(C8H7O3)2(C6H6N2O)2], contains three crystallographically independent molecules with similar configurations. One Zn—O bond distance [2.5181 (12), 2.5931 (12). 2.4085 (12) Å for the three molecules] is significantly longer than the other two. N—H O and C—H O hydrogen bonding links the molecules into a three-dimensional network. – contacts between the pyridine rings and between the pyridine and benzene rings [centroid–centroid distances = 3.7655 (9) and. 3.8453 (10) Å, respectively] further stabilize the crystal structure
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