Ferromagnetism of Two-Bridge Clusters

A generalized model of angular overlapping was used to analyze the magnetic properties of polynuclear complexes. The structural elements of these complexes contain planar binuclear fragments of the M(LR)₂M type. The maximum ferromagnetism for the monoatomic bridges corresponds to = MLM, which is about 100°. Weak planar interactions between L and R displace the ferromagnetism maximum towards lower , while interactions shift it towards higher . In almost all cases, strong planar interactions (LLR 180°) are responsible for strong antiferromagnetism.