Citation: Vlasse, M.; Boukhari, A.; Chaminade, J.P.; Pouchard, M. (1979). Crystal structure of potassium tantalum oxyfluoride K6 Ta6.5 O14.5 F9.5. Materials Research Bulletin, 14, pp. 101-108.
Formula: F9.5 K6 O14.5 Ta6.5
Chemical name: K6 Ta6.5 O14.5 F9.5
List type: interleaving
List: 1-3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: F21 O21 Ta6 (F7 O7 Ta2)
Multiplicity: 1
Basis: (0;0;1)
Dimensionality: 1
Formula: F6 O6 Ta2 (F3 O3 Ta)