“…1À3 The structural complexity of such materials, derived from the octacyanidometallate moiety, 3d metal center, and organic ligand provides the potential for the design of novel multifunctional materials. 1,4 The coordination lability of the copper(II) complexes combined with the stereochemical nonrigidity of the [M(CN) 8 ] nions allows the formation of clusters, 5 discrete molecules, 6,7 1-D chains, 8À10 2-D layers, 11À25 and 3-D networks. 20,26À33 The majority of Cu II À NCÀW V systems display ferromagnetic coupling between metal centers, 5À8,10,12,15,17,19À31 and metamagnetism was observed in some materials.…”