Catena-Poly[[aqua(iminodiacetato-κ3 O,N,O′)nickel(II)]-μ-4,4′-dipyridylamine-κ2 N:N′

Abstract

In the title compound, [Ni(C4H5NO4)(C10H9N3)(H2O)] n , the NiII cations are octahedrally coordinated by an N atom donor and two O donor atoms belonging to a tridentate iminodiacetate (ida) ligand in a fac fashion, an O atom donor from an aqua ligand, and cis-disposed pyridyl N donor atoms from two 4,4′-dipyridylamine (dpa) ligands. The dpa ligands are disordered over two sets of sites in a 0.594 (7):0.406 (7) ratio. Through the bridging dpa ligands, [Ni(ida)(dpa)(H2O)] n zigzag coordination polymer chains are formed that are oriented along the b-axis direction. These chain motifs are anchored into the three-dimensional supramolecular crystal structure of the title compound by means of O—H...O and N—H...O hydrogen-bonding pathways.