data_global _amcsd_formula_title 'Ba2 Cu3 O6.072 Y' loop_ _publ_author_name 'Santoro A' 'Miraglia S' 'Beech F' 'Sunshine S' 'Murphy D' 'Schneemeyer L' 'Waszcak J' _journal_name_full 'Materials Research Bulletin' _journal_volume 22 _journal_year 1987 _journal_page_first 1007 _journal_page_last 1013 _publ_section_title ; The structure and properties of Ba2 Y Cu3 O6 _cod_database_code 1008706 ; _database_code_amcsd 0016592 _chemical_formula_sum 'Ba2 Y Cu3 O6.036' _cell_length_a 3.8570 _cell_length_b 3.8570 _cell_length_c 11.8194 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 175.831 _exptl_crystal_density_diffrn 6.146 _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 Ba1 0.50000 0.50000 0.19520 1.00000 Y1 0.50000 0.50000 0.50000 1.00000 Cu1 0.00000 0.00000 0.00000 1.00000 Cu2 0.00000 0.00000 0.36070 1.00000 O1 0.00000 0.00000 0.15180 0.99000 O2 0.00000 0.50000 0.37910 1.00900 O3 0.00000 0.50000 0.00000 0.02800