Dilacunary decatungstates functionalized by organometallic ruthenium(II), [{Ru(C6H6)(H2O)}{RU(C6H6)}(gamma-XW10(O36)).sup.4-] (X=Si, Ge)

The benzene-Ru(II)-supported dilacunary decatungstosilicate [{Ru(C6H6)(H2O)}{RU(C6H6)}(gamma-SiW10(O36)).sup.4-] (1)and the isostructural decatungstogermanate [{Ru(C5H5)(H2O)}{RU(C6H6)}(gamma-SiW10(O36)).sup.4-] (2) are synthesized and characterized by multinuclear solution NMR, IR, elemental analysis, and electrochemistry. A ligand substitution reaction was observed upon addition of dimethyl sulfoxide (dmso) to 1,2, or [Ru(C6H6)Cl2.sub.2], which facilitates substantially the oxidation of the Ru center.