[V19O41(OH)9]8⊖, An Ellipsoid‐Shaped Cluster Anion Belonging to the Unusual Family of VIV/VV Oxygen Clusters

Clearly distinguishable are the VIV and VV centers of the "outer shell" of the title anion 1, whose center forms a VO4 tetrahedron and a μ3-O atom. The nine μ2-O bridges between VIV centers (black) are protonated, the six between VIV and VV centers (hatched), on the other hand, are not. The formation of 1 confirms the unusual behavior of vanadium in polycondensation. The cross-hatched atom shows the second disordered position of the central V atom.