Bis(oxoniobium) Tetraphosphate(V)

Nb₂O₁₅P₄

Nicolaev, V.P.Sadikov, G.G.Lavrov, A.V.Porai Koshits, M.A.

Izvestiya Akademii Nauk SSSR, Neorganicheskie Materialy (1986) 22, 1364-1368

a=6.586(1)Å   b=8.400(1)Å   c=10.842(1)Å

α=106.37(1)°   β=90.35(1)°   γ=89.97(1)°