论文信息 - Electron transfer in tetranuclear mixed-valence iron clusters. Role of the topology on the magnetic properties

Electron transfer in tetranuclear mixed-valence iron clusters. Role of the topology on the magnetic properties

Abstract The energy levels and magnetic properties of mixed-valence d 5 d 5 d 5 d 6 clusters are studied from a model that takes into account the electron transfers between orbitally nondegenerate orbitals of the metal ions, and superexchange interactions. The influence of the electron transfer on the spin state energies and magnetic properties is examined as a function of the geometry of the tetranuclear cluster, including the limiting cases with T d and D 4h symmetries. For geometries close to the tetrahedral, effects of antiferromagnetic superexchange interactions are also discussed.

Eugenio Coronado | Carlos J. Gómez-García | Juan J. Borrás-Almenar | Roland Georges

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