A novel three-dimensional mixed bridging–ligand complex ½CuII 2 ðtnÞ2 ½FeIIðCNÞ6 $H2O with an unexpected 1,3-diaminopropane bridge

Reaction of K3[Fe(CN)6] with [Cu(tn)2](ClO4)2 (tnZ1,3-diaminopropane) leads to a novel mixed cyano and tn bridged three-dimensional (3D) bimetallic assembly ½CuII 2 ðtnÞ2 ½FeIIðCNÞ6 $H2O (1), in which each [Fe(CN)6]4K anion connects six copper(II) cations via six CNK groups, whereas each copper(II) cation is linked to three [Fe(CN)6]4K ions and two other copper(II) ions through Cu–NC–Fe and Cu–tn–Cu linkages, respectively. Magnetic studies reveal weak antiferromagnetic interactions between the nearest CuII (SZ1/2) ions through the diamagnetic [Fe(CN)6]4K anion. q 2005 Elsevier B.V. All rights reserved