Citation: Zah-Letho, J.J.; Verbaere, A.; Jouanneaux, A.; Taulelle, F.; Piffard, Y.; Tournoux, M. (1995). "Nb2-x P3-y O12", a novel Nb(V) oxophosphate with disordered cation vacancies in a Sc2 (W O4)3 - type structure. Journal of Solid State Chemistry, 116, pp. 335-342.
Formula: Nb1.91 O12 P2.82
Chemical name:Niobium Phosphorus Oxide (1.9/2.8/12)