Information card for entry 1001027

Structure parameters

• Chemical name: Potassium niobium oxide (3/8/21)
• Formula: K3 Nb8 O21
• Calculated formula: K3 Nb8 O21
• Title of publication: Sur une nouvelle famille d'oxydes ternaires de niobium, A~3~ M~8~ O~21~ a structure en cages
• Authors of publication: Groult, D; Chailleux, J M; Choisnet, J; Raveau, B
• Journal of publication: Journal of Solid State Chemistry
• Year of publication: 1976
• Journal volume: 19
• Pages of publication: 235 - 244
• a: 9.153 ± 0.004 Å
• b: 9.153 ± 0.004 Å
• c: 12.066 ± 0.008 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 875.4 ų
• Number of distinct elements: 3
• Space group number: 193
• Hermann-Mauguin space group symbol: P 63/m c m
• Hall space group symbol: -P 6c 2
• Residual factor for all reflections: 0.058
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No