1 YOM 2,2'-[1,2-phenylenebis(nitrilomethylidyne)]bis[phenolato]](2-)-N,N',O,O']-iron 1.000 2 YOL [[2,2'-[4-carboxy-1,2-phenylenebis(nitrilomethylidyne)]bis[phenolato]](2-)-N,N',O,O']-iron 0.893 3 YOK [[2,2'-[4-carboxyethyl-1,2-phenylenebis(nitrilomethylidyne)]bis[phenolato]](2-)-N,N',O,O']-iron 0.833 4 CZM 'N,N'-bis-(2-hydroxy-3-methyl-benzylidene)-benzene-1,2-diamine' 0.759 5 L2M {(R)-N-[(1s,2s)-2-{methyl[(pyridin-2-yl-kappan)methyl]amino-kappan}cyclohexyl]-N-[(pyridin-2-yl-kappan)methyl]glycinato-kappa~2~N,O}iron(2+) 0.710