Information card for entry 1001007

Structure parameters

• Chemical name: Tripotassium boro-niobate *
• Formula: B2 K3 Nb3 O12
• Calculated formula: B2 K3 Nb3 O12
• Title of publication: Nouvelles structures a tunnels de section pentagonale K~3~ Nb~3~ B~2~ O~12~ et K~3~ Ta~3~ B~2~ O~12~
• Authors of publication: Choisnet, J; Groult, D; Raveau, B; Gasperin, M
• Journal of publication: Acta Crystallographica B (24,1968-38,1982)
• Year of publication: 1977
• Journal volume: 33
• Pages of publication: 1841 - 1845
• a: 8.753 ± 0.005 Å
• b: 8.753 ± 0.005 Å
• c: 3.966 ± 0.001 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 263.1 ų
• Number of distinct elements: 4
• Space group number: 157
• Hermann-Mauguin space group symbol: P 3 1 m
• Hall space group symbol: P 3 -2
• Residual factor for all reflections: 0.08
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No