1 QFY {N-(2-{bis[(pyridin-2-yl-kappan)methyl]amino-kappan}ethyl)-5-[(3as,4s,6ar)-2-oxohexahydro-1h-thieno[3,4-D]imidazol-4-yl]pentanamide}iron(3+) 1.000 2 QG7 N-(2-{bis[(pyridin-2-yl)methyl]amino}ethyl)-5-[(3as,4s,6ar)-2-oxohexahydro-1h-thieno[3,4-D]imidazol-4-yl]pentanamide 0.971 3 QG1 {5-[(3as,4s,6ar)-2-oxohexahydro-1h-thieno[3,4-D]imidazol-4-yl]-N-(2-{[(pyridin-2-yl)methyl][(pyridin-2-yl-kappan)methyl]amino-kappan}ethyl)pentanamide}iron(2+) 0.943 4 QG4 {N-(2-{bis[(pyridin-2-yl-kappan)methyl]amino-kappan}ethyl)-5-[(3as,4s,6ar)-2-oxohexahydro-1h-thieno[3,4-D]imidazol-4-yl]pentanamide}(triaza-1,2-dien-2-ium-1-ide-kappan~1~)iron(4+) 0.919 5 X08 5-[(3~{a}~{S},4~{S},6~{a}~{R})-2-oxidanylidene-1,3,3~{a},4,6,6~{a}-hexahydrothieno[3,4-D]imidazol-4-yl]-~{N}-[2-[(5-methylpyridin-2-yl)methylamino]ethyl]pentanamide 0.743