catena-Poly(557121214-hexa­methyl-14811-tetra­aza­cyclo­tetra­decane-κ4N)nickel(II)-μ-oxido-dioxidotungstate(VI)-μ-oxido tetra­hydrate

摘要

In the title compound, {[NiWO4(C16H36N4)]·4H2O}n, the Ni^II ion lies on an inversion center and is octahedrally coordinated by four N atoms of the tetradentate macrocyclic 5,5,7,12,12,14-hexa­methyl-1,4,8,11-tetra­aza­cyclo­tetra­decane (L) ligand in the equatorial plane and two O atoms of [WO4]²⁻ anions in axial positions. Each [WO4]²⁻ anion bridges two adjacent [NiL]²⁺ cations, forming a chain along [001]. The chains are further connected via N—H⋯O, O—H⋯O and C—H⋯O hydrogen-bonding inter­actions, generating a three-dimensional structure.