data_global _amcsd_formula_title 'Ba2 Cu2.5 O7 Pd0.5 Y' loop_ _publ_author_name 'Ferey G' 'Le Bail A' 'Laligant Y' 'Hervieu M' 'Raveau B' 'Sulpice A' 'Tournier R' _journal_name_full 'Physica C' _journal_volume 153 _journal_year 1988 _journal_page_first 489 _journal_page_last 490 _publ_section_title ; Ordered Pd^2+^ - Cu^2+^ substitution in 1.2.3. superconductor: The oxide Y Ba2 Cu3-x Pdx Oy (x=0.5) with Pd^2+^ in square planar coordination _cod_database_code 1008378 ; _database_code_amcsd 0016288 _chemical_formula_sum 'Y Ba2 Cu2.5 Pd.5 O7' _cell_length_a 3.841 _cell_length_b 3.883 _cell_length_c 11.671 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 174.068 _exptl_crystal_density_diffrn 6.560 _symmetry_space_group_name_H-M 'P m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,-y,z' '-x,y,-z' '-x,y,z' 'x,-y,-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 Y1 0.50000 0.50000 0.50000 1.00000 Ba1 0.50000 0.50000 0.18410 1.00000 Cu1 0.00000 0.00000 0.35820 1.00000 Cu2 0.00000 0.00000 0.00000 0.50000 Pd1 0.00000 0.00000 0.00000 0.50000 O1 0.00000 0.00000 0.15800 1.00000 O2 0.00000 0.50000 0.36700 1.00000 O3 0.50000 0.00000 0.38800 1.00000 O4 0.50000 0.00000 0.00000 1.00000