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Confined Electron-Transfer Reactions within a Molecular Metal Oxide “Trojan Horse”


  • This work was supported by the Leverhulme Trust (London), The Royal Society and The University of Glasgow. The EPSRC provided funds for the X-ray diffractometer. Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University Contract No. W-7405-Eng-82.


original image

Cores and effect: Heating the cluster [W18O56(SO3)2(H2O)2]8− causes an electron transfer from the core sulfite anions to the cluster shell resulting in a color change from colorless to dark blue (see backgrounds). The electron transfer is coupled with a structural reorganization of the cluster shell and oxidation of the sulfite to sulfate anions (see scheme).