Ammonium Diaquadioxalatooxoniobate(V) Dihydrate, NH4[NbO(C2O4)2(H2O)2].(H2O)2

C₄H₁₂NNbO₁₃

Eriksson, LarsSvensson, GunnarTabachenko, Valeri

Acta Chemica Scandinavica (1993) 47, 1038-1040

a=6.331(3)Å   b=11.754(6)Å   c=7.900(4)Å

α=90.°   β=99.26(2)°   γ=90.°