Bis(μ-acetato)(μ-2,6-bis­{[(2-hydroxy­ethyl)(2-pyridylmeth­yl)amino]meth­yl}-4-methyl­phenolato)dinickel(II) hexa­fluoro­phosphate hemihydrate

The asymmetric unit of the title compound, [Ni₂(C₂₅H₃₁N₄O₃)(C₂H₃O₂)₂]PF₆·0.5H₂O, consists of two dinuclear nickel cations, two hexa­fluoro­phosphate anions and one water mol­ecule of crystallization. Within each cation, the Ni atoms are bridged by two exogenous acetate groups and an endogenous cresol O atom of a phenolate-based `end-off' compartmental ligand that possesses two pendant chelating arms attached to the ortho positions of the phenol ring. Each Ni atom is six-coordinate with a slightly distorted octa­hedral geometry. The two symmetry-independent cations are linked into a dimeric unit through O—H...O hydrogen bonds. Additional O—H...O, C—H...F and C—H...O inter­molecular inter­actions link all of the units in the structure into a three-dimensional framework.