SEARCH Articles Figures Tables Complex planar Complexes macrocycles Macrocycle complexes Macrocyclic complexes Macrocyclic squares Macrocyclization reactions Nickel complexes macrocycles Nickel macrocycle Nickel macrocyclic complexes Nickel macrocyclic complexes reactions Nickel planar complexes Nickel square-planar complexes Nickel-macrocycle complex Nickel-macrocycle complex square planar Reaction nickel Square macrocycle Square planar complexes Square-planar complexes reactions Square-planar nickel macrocyclic complexes Squared Reaction