Information card for entry 1531232

Structure parameters

• Chemical name: K2 La0.667 (Ta2 O7)
• Formula: K2 La0.667 O7 Ta2
• Calculated formula: K1.999 La0.667 O7 Ta2
• Title of publication: Synthesis and crystal structure of two new layered perovskite phases K2 La2/3 Ta2 O7 and Li2 La2/3 Ta2 O7
• Authors of publication: Crosnier-Lopez, M.P.; le Berre, F.; Fourquet, J.L.
• Journal of publication: Zeitschrift fuer Anorganische und Allgemeine Chemie
• Year of publication: 2002
• Journal volume: 628
• Pages of publication: 2049 - 2056
• a: 3.9679 Å
• b: 3.9679 Å
• c: 22.0807 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 347.644 ų
• Number of distinct elements: 4
• Space group number: 139
• Hermann-Mauguin space group symbol: I 4/m m m
• Hall space group symbol: -I 4 2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No