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The macrocyclic ligand -H2 py N2-O3ane(2) was readily prepared in a diluted condition in THF.The mixture of 2 and Ni(OTf)2 in DMF using Et4 NOH as the base source gave a mononuclear square planar complex(Et4N)[Ni(OH)(-py N2-O3ane)](3).Addition of Fe(OTf