Information card for entry 1001631

Structure parameters

• Chemical name: Lead mercury strontium neodymium calcium copper oxide (0.7/0.3/2/0.2/0.8/2/7)
• Formula: Ca0.77 Cu2 Hg0.3 Nd0.23 O7 Pb0.7 Sr2
• Calculated formula: Ca0.77 Cu2 Hg0.3 Nd0.23 O7 Pb0.7 Sr2
• Title of publication: Lead-mercury-based superconductors. The 1212 cuprate Pb0.7 Hg0.3 Sr2+x Ca0.7 Nd0.3-x Cu2 O7-d and the new oxycarbonate Pb0.7 Hg0.3 Sr4 Cu2 (C O3) O7
• Authors of publication: Martin, C; Hervieu, M; Huve, M; Michel, C; Maignan, A; Van Tendeloo, G; Raveau, B
• Journal of publication: Physica C (Amsterdam) (152,1988-)
• Year of publication: 1994
• Journal volume: 222
• Pages of publication: 19 - 26
• a: 3.8116 ± 0.0002 Å
• b: 3.8116 ± 0.0002 Å
• c: 12.1337 ± 0.0006 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 176.3 ų
• Number of distinct elements: 7
• 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: 0.087
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No