Trans-(1,8-Dibenzyl-1,3,6,8,10,13-hexa-azacyclotetradecane) diisonicotinatonickel(II)

In the centrosymmetric title compound, [Ni(C6H4NO2)2(C22H34N6)], the Ni^II ion is bonded to the four secondary N atoms of the macrocyclic ligand in a square-planar fashion and two carboxyl-ate O atoms of the isonicotinate ions in axial positions, resulting in a tetra-gonally distorted octa-hedron. An offset face-to-face π-π stacking inter-action [centroid-centroid distance = 3.674(4) Å] and N - H⋯N and N - H⋯O hydrogen-bonding inter-actions give rise to a one-dimensional supra-molecular structure in the solid state.