(Organoarsonato)polyoxovanadium Clusters: Properties and Structures of the V V Cluster [V10O24(O3AsC6H4‐4‐NH2)3]4− and the V IV /V V Cluster [H2{V6O10(O3AsC6H5)6}]2−

Three {V3O13} units linked to form a ring that encloses the central V atom are found in the VV title compound. The VIV/VV cluster consists of a layered structure composed of three {V2As2O4} rings. These are further examples of the exotic structures which are par for polyoxometalates. They show the profound influence that even a subtle change in the organic ligand can exert on the structure. The structure of the VV compound is shown on the right. • = V.