Information card for entry 1001104

Structure parameters

• Chemical name: Potassium silicate tantalate *
• Formula: K6 O26 Si4 Ta6
• Calculated formula: K6 O26 Si4 Ta6
• Title of publication: De nouveaux oxydes a reseau forme d'octaedres Nb O~6~ (Ta O~6~) et de groupes Si~2~ O~7~: Les phases A~3~ Ta~6~ Si~4~ O~26~ (A= Ba, Sr) et K~6~ M~6~ Si~4~ O~26~ (M= Nb, Ta)
• Authors of publication: Choisnet, J; Nguyen, N; Groult, D; Raveau, B
• Journal of publication: Materials Research Bulletin
• Year of publication: 1976
• Journal volume: 11
• Pages of publication: 887 - 894
• a: 9.066 Å
• b: 9.066 Å
• c: 7.873 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 560.4 ų
• Number of distinct elements: 4
• Space group number: 189
• Hermann-Mauguin space group symbol: P -6 2 m
• Hall space group symbol: P -6 -2
• Residual factor for all reflections: 0.066
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No