Information card for entry 2101135

Structure parameters

• Formula: Al3 F19 Pb5
• Calculated formula: Al3 F19 Pb5
• Title of publication: Relationship between the structures of ferroelectric Pb~5~Cr~3~F~19~ and antiferroelectric Pb~5~Al~3~F~19~ at 295 K and the phase III‒phase IV transition in Pb~5~Al~3~F~19~ on cooling to about 110 K
• Authors of publication: Andriamampianina, V.; Gravereau, P.; Ravez, J.; Abrahams, S. C.
• Journal of publication: Acta Crystallographica Section B
• Year of publication: 1994
• Journal volume: 50
• Journal issue: 2
• Pages of publication: 135 - 141
• a: 20.1738 ± 0.0004 Å
• b: 20.1738 ± 0.0004 Å
• c: 7.2205 ± 0.0001 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 2938.62 ± 0.09 ų
• Sample thermal history: cooling to about 110 K
• Number of distinct elements: 3
• Space group number: 85
• Hermann-Mauguin space group symbol: P 4/n :2
• Hall space group symbol: -P 4a
• Diffraction radiation wavelength: 0.71069 Å
• Diffraction radiation type: Mo
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No