Abstracts 1998

Abstract of Publication No. 307

Høgni Weihe and Hans U. Güdel
Magneto-Structural Correlations in Linear and Bent Oxo-Bridged Transition-Metal Dimers: Comparisons, Interpretations, and Predictions of Ground-State Magnetic Properties
J. Am. Chem. Soc. 120, 2870-2879 (1998)      Full Text (PDF)      DOI-Link     

Abstract: The angular dependence of the magnetic properties of all known octahedrally coordinated oxo-bridged dimers with trivalent 3d transition metals are interpreted in terms of the most simple concepts. These concepts are based on a combination of kinetic exchange and the chemically intuitive angular overlap model. The use of an angular overlap model allows the separation of the s donor properties of the bridging oxide ligand into ss and ps contributions. An estimate of the ss and the ps angular overlap model parameters is given. An analysis of the magnetic properties of the known oxo-bridged dimers allows us to predict the magnetic properties of unknown oxo-bridged dimers with trivalent 3d transition metal ions.

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