Experimental Crystal data

R factor = 0.028; wR factor = 0.080; data-to-parameter ratio = 12.3. The title complex, [Zn(C7H4NO4)2(C5H5NO)2], has site symmetry 2. The ZnII ion is located on a crystallographic twofold rotation axis and assumes a distorted tetrahedral ZnN2O2 coordination geometry. Molecules are linked by an intermolecular O—H O hydrogen bond and – stacking interactions between pyridine rings [centroid–centroid speparation 3.594 (1) Å]. Related literatur