Citation: Fallon, G.D.; Gatehouse, B.M. (1977). Crystal structures of some niobium and tantalum oxides. II. The 4Rb2 O : 11Nb2 O5 phase - a tunnel structure. Journal of Solid State Chemistry, 22, pp. 405-409.
Formula: Nb33 O90 Rb12.0012
Chemical name: Rb12.20 Nb33.56 O90
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Nb33 O90 (Nb11 O30)
Multiplicity: 1
Coordination sequences: