data_global _amcsd_formula_title 'Ca0.5 Cu2 O6.3 Pb0.46 Sr2.46 Y0.5' loop_ _publ_author_name 'Rouillon T' 'Provost J' 'Hervieu M' 'Groult D' 'Michel C' 'Raveau B' _journal_name_full 'Physica C' _journal_volume 159 _journal_year 1989 _journal_page_first 201 _journal_page_last 209 _publ_section_title ; Superconductivity up to 100 K in lead cuprates: A new superconductor Pb.5 Sr2.5 Y.5 Ca.5 Cu2 O7-delta _cod_database_code 1001412 ; _database_code_amcsd 0015015 _chemical_formula_sum 'Pb.46 Sr2.46 (Y.5 Ca.5) Cu2 O6.3' _cell_length_a 3.817 _cell_length_b 3.817 _cell_length_c 11.907 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 173.479 _exptl_crystal_density_diffrn 5.774 _symmetry_space_group_name_H-M 'P 4/m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-y,-x,z' 'y,x,-z' 'y,-x,-z' '-y,x,z' 'x,-y,z' '-x,y,-z' 'x,y,-z' '-x,-y,z' 'y,x,z' '-y,-x,-z' '-y,x,-z' 'y,-x,z' '-x,y,z' 'x,-y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Pb1 0.50000 0.50000 0.50000 0.46000 Sr1 0.50000 0.50000 0.50000 0.46000 Sr2 0.00000 0.00000 0.28900 1.00000 Y1 0.00000 0.00000 0.00000 0.50000 Ca1 0.00000 0.00000 0.00000 0.50000 Cu1 0.50000 0.50000 0.13620 1.00000 O1 0.00000 0.50000 0.12700 1.00000 O2 0.50000 0.50000 0.31800 0.65000 O3 0.00000 0.00000 0.50000 1.00000