Information card for entry 1008355

Structure parameters

• Chemical name: Yttrium barium copper oxide (.9/2.1/3/6) - prepared at T = 950 C
• Formula: Ba2.1 Cu3 O6 Y0.9
• Calculated formula: Ba2.11 Cu3 O6 Y0.89
• Title of publication: Crystal structure of Y~0.9~ Ba~2.1~ Cu~3~ O~6~, a compound related to the high-T~c~ superconductor Y Ba~2~ Cu~3~ O~7~.
• Authors of publication: Bordet, P; Chaillout, C; Capponi, J J; Chenavas, J; Marezio, M
• Journal of publication: Nature (London)
• Year of publication: 1987
• Journal volume: 327
• Pages of publication: 687 - 689
• a: 3.8715 ± 0.0006 Å
• b: 3.8715 ± 0.0006 Å
• c: 11.738 ± 0.002 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 175.9 ų
• Sample thermal history: prepared at T = 950 C
• Number of distinct elements: 4
• Space group number: 123
• Hermann-Mauguin space group symbol: P 4/m m m
• Hall space group symbol: -P 4 2
• Residual factor for all reflections: 0.046
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No