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metal-organic compounds
In the title compound, [ZnI2(C8H8N2O3)2], the Zn atom, which lies on a twofold axis, exists in a slightly distorted tetrahedral geometry with two zwitterionic nicotinamide-N1-acetate substituents [Zn-O1 2.008 (2) Å] and two iodide ligands [Zn-I 2.5848 (3) Å]. Molecules of the complex are connected by intermolecular N-HO hydrogen bonds, with NO distances of 2.965 (3) and 3.133 (3) Å.