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Glossary


polyoxometalates


Polyoxometalates are large inorganic anions formed via condensation-addition reactions of simple oxoanions of early transition elements such as V, Mo and W.

e.g.      7 MoO42- + 8 H+   =     [Mo7O24]6- + 4 H2O        an isopolymolybdate

            12 WO42- + SiO32- + 22 H+   =     [SiW12O40]4- + 11 H2O     a heteropolytungstate


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