Information card for entry 1001699

Structure parameters

• Chemical name: Tetrasodium tectooctaniobotetraphosphate(V)
• Formula: Na4 Nb8 O32 P4
• Calculated formula: Na4 Nb8 O32 P4
• Title of publication: Phosphate niobium bronzes and bronzoids with the MPTBP structure: Na4 Nb8 P4 O32 and Na4-x Ax Nb7 M P4 O32 fourth members of the series Ax (P O2)4 (Nb O3)2m
• Authors of publication: Costentin, G; Borel, M M; Grandin, A; Leclaire, A; Raveau, B
• Journal of publication: Materials Research Bulletin
• Year of publication: 1991
• Journal volume: 26
• Pages of publication: 1051 - 1057
• a: 6.635 ± 0.001 Å
• b: 5.352 ± 0.001 Å
• c: 17.967 ± 0.005 Å
• α: 90°
• β: 90.33°
• γ: 90°
• Cell volume: 638 ų
• Number of distinct elements: 4
• Space group number: 4
• Hermann-Mauguin space group symbol: P 1 21 1
• Hall space group symbol: P 2yb
• Residual factor for all reflections: 0.06
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No