Syntheses, crystal structures and magnetic properties of two heterometallic cyanide-bridged [MII2MnII2] (MÂ =Â Fe and Os) square complexes

Two tetra-nuclear cyanide-bridged square complexes [cis-Fe(bpy)2(CN)2Mn(L)]2[PF6]4 (1) and [cis-Os(bpy)2(CN)2Mn(L)]2[PF6]2[ClO4]2 (2) were synthesized and fully characterized. The magnetic properties of both 1 and 2 are weak magnetic coupling.51