A cyano-bridged binuclear Cu-Fe complex based on nitroprusside

The title compound, mu-cyano-1: 2kappa(2) C: N-tetracyano-1kappaC[ 3,7-bis(2-aminoethyl)-1,3,5,7-tetraazabicyclo[3,3,2] decane-2 kappa(4)N(1,3,5,7)]-nitrosyl-1kappaN-copper(II) iron(II) monohydrate, [CuFe(CN)(5)(C10H24N6)(NO)].H2O, has been synthesized and structurally characterized; the Cu atom is five-coordinate and has a square pyramidal configuration. The [Fe(CN)(5)(NO)](2-) anion uses the CN- ligand cis to the NO+ ligand to link to the Cu atom. The Cu-N=C-Fe linkage is nonlinear, similar to that in other cyano-bridged bimetallic complexes.