6533b872fe1ef96bd12d3a54
RESEARCH PRODUCT
Mixed‐valence trinuclear manganese clusters : Influence of the electronic transfer on the magnetic properties
Eugenio CoronadoG. PourroyC.j. Gómez-garcíasubject
Valence (chemistry)ChemistryMagnetic Propertiesmedia_common.quotation_subjectUNESCO::FÍSICAExchange InteractionsGeneral Physics and Astronomychemistry.chemical_elementManganeseElectronElectron TransferManganese ComplexesAsymmetryElectron transferCrystallographyDelocalized electronchemistry.chemical_compound:FÍSICA [UNESCO]Intramolecular forcePyridineMixed−Valence CompoundsAtomic ClustersAtomic physicsMixed−Valence Compounds ; Electron Transfer ; Magnetic Properties ; Atomic Clusters ; Manganese Complexes ; Exchange Interactionsmedia_commondescription
The magnetic behavior of mixed‐valence trinuclear clusters d4‐d4‐d5 is discussed on the basis of a model which takes into account valence delocalization and Heisenberg exchange. This model considers the competing effect between the electronic transfer and the localization of the extra electron due to an asymmetry of the triangular entity. The magnetic properties of the mixed‐valence oxo‐centered Mn(II)‐Mn(III)‐Mn(III) complexes formulated as Mn3O(O2CR)6L3 (R=Me, L=pyridine) are discussed on the basis of the developed model, supporting a significant intramolecular electron transfer. A comparison of these results to those previously reported by assuming a valence‐trapped model is given. Carlos.Gomez@uv.es ; Eugenio.Coronado@uv.es
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-05-01 |