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heteropolyacid  

Definición

  • In chemistry, a heteropolymetalate is a subset of the polyoxometalates. They consist of three or more transition metal oxyanions linked together by shared oxygen atoms to form closed 3-dimensional molecular framework. In contrast to isopolymetalates, the heteropolymetallates contain main group oxy anions. The metal atoms are usually group 6 (Mo, W) or less commonly group 5 (V, Nb, Ta) transition metals in their highest oxidation states. (From Wikipedia)

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http://data.loterre.fr/ark:/67375/37T-ZF0M6JN8-C

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