SEARCH Articles Figures Tables Copper-macrocycle complex square planar Coronenes, Crown ethers, Cryptands, Macrocycles, Squares, Rectangles Macrocyclic squares, chiral Nickel macrocyclic complexes square-planar species Nickel-macrocycle complex square planar Nickel-macrocycle complex square pyramidal Square macrocycle Square macrocycle Square-planar nickel macrocyclic complexes Square-planar nickel macrocyclic complexes properties Square-planar nickel macrocyclic complexes synthesis Square-planar nickel macrocyclic complexes, reactions