Poly[[tris(μ-4,4′-bipyridine-κ2N:N′)bis(μ-l-lysinato-κ3N1,O1:O1′)dizinc(II)] tetranitrate 0.6-hydrate dimethylformamide disolvate]

Abstract

In the title compound, {[Zn2(C6H14N2O2)2(C10H8N2)3](NO3)4·0.6H2O·2C3H7NO}n, the ZnII ion is six-coordinated with a distorted octahedral geometry by two carboxylate O atoms and one amino N atom from two l-lysinate (l-lys) ligands, and three N atoms from three 4,4′-bipyridine (4,4′-bipy) ligands. The ZnII ions are connected by the carboxylate groups of the l-lys ligands in the a-axis direction and the bridging 4,4′-bipy ligands in the b- and c-axis directions, forming a three-dimensional cationic framework with channels along [100]. The nitrate anions and solvent water and dimethylformamide (DMF) molecules are located in the channels and linked to the cationic framework by N—H...O and O—H...O hydrogen bonds. The occupancy of the water molecule was fixed at 0.6. One of the DMF molecules is disordered over two sets of sites, with an occupancy ratio of 0.632:0.368 (11).