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Cover Picture: Confined Electron-Transfer Reactions within a Molecular Metal Oxide “Trojan Horse” (Angew. Chem. Int. Ed. 22/2005)

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Abstract

Upon thermal stimulation the two templating sulfite anions embedded in the “Trojan Horse” polyoxometalate cluster shown in the cover picture release electron “soldiers” to the cluster's surface, turning the cluster from colorless to blue (background). The formation of the mixed-valence cluster shell is commensurate with the oxidation of the sulfite to sulfate anions. More details about this coupled structural and electronic rearrangement are given in the Communication by L. Cronin et al. on page 3415 ff.

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