Diaqua­bis(1,10-phenanthroline-κ²N,N′)zinc(II) penta­fluoro­oxoniobate(V)

The crystal structure of the title compound, [Zn(C₁₂H₈N₂)₂(H₂O)₂][NbF₅O], consists of Zn^II complex cations and Nb^V complex anions. The Zn^II and Nb^V atoms each have a distorted octa­hedral coordination geometry. The Nb—F bond in the trans position with respect to the Nb=O bond is significantly longer than the other four Nb—F bonds in the same [NbOF₅]²⁻ anion.