Bis 1,3-dihydroxy-2-hydroxymethyl-2-(5-nitro-2-oxidobenzylideneamino) propane-kappa N-3,O,O ' nickel(II) pyridine solvate

The Ni-II atom in the title complex, [Ni(C11H13N2O6)(2)]center dot C5H5N, is chelated by a terdentate Schiff base anion in a slightly octahedral geometry. One of the coordinated hydroxyl groups forms a hydrogen bond with the pyridine solvent molecule. In the crystal structure, other hydroxyl groups are involved in intermolecular hydrogen bonding, forming a two-dimensional layer