data_global _amcsd_formula_title 'Bi4 Cu5 O20.5 Sr8' loop_ _publ_author_name 'Fuertes A' 'Miravitilles C' 'Gonzales-Calbet J' 'Vallet-Regi M' 'Obradors X' 'Rodriguez-Carvajal J' _journal_name_full 'Physica C' _journal_volume 157 _journal_year 1989 _journal_page_first 525 _journal_page_last 530 _publ_section_title ; The tubular crystal structure of the new phase Bi4Sr8Cu5O19+x related to the supercoducting perovskites _cod_database_code 1006012 ; _database_code_amcsd 0015014 _chemical_formula_sum 'Bi4 Sr8 Cu5 O20.5' _cell_length_a 5.373 _cell_length_b 33.907 _cell_length_c 23.966 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 4366.182 _exptl_crystal_density_diffrn 6.641 _symmetry_space_group_name_H-M 'F m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2+y,1/2+z' '1/2+x,y,1/2+z' '1/2+x,1/2+y,z' 'x,-y,z' 'x,1/2-y,1/2+z' '1/2+x,-y,1/2+z' '1/2+x,1/2-y,z' '-x,y,-z' '-x,1/2+y,1/2-z' '1/2-x,y,1/2-z' '1/2-x,1/2+y,-z' '-x,y,z' '-x,1/2+y,1/2+z' '1/2-x,y,1/2+z' '1/2-x,1/2+y,z' 'x,-y,-z' 'x,1/2-y,1/2-z' '1/2+x,-y,1/2-z' '1/2+x,1/2-y,-z' 'x,y,-z' 'x,1/2+y,1/2-z' '1/2+x,y,1/2-z' '1/2+x,1/2+y,-z' '-x,-y,z' '-x,1/2-y,1/2+z' '1/2-x,-y,1/2+z' '1/2-x,1/2-y,z' '-x,-y,-z' '-x,1/2-y,1/2-z' '1/2-x,-y,1/2-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Bi1 0.00000 0.28840 0.18910 1.00000 Bi2 0.00000 0.13450 0.19150 1.00000 Sr1 0.00000 0.21150 0.07440 1.00000 Sr2 0.00000 0.05630 0.08410 1.00000 Sr3 0.00000 0.36550 0.07770 1.00000 Sr4 0.00000 0.44610 0.19500 1.00000 Cu1 0.00000 0.44480 0.00000 1.00000 Cu2 0.00000 0.13230 0.00000 1.00000 Cu3 0.00000 0.28970 0.00000 1.00000 Cu4 0.00000 0.50000 0.08240 1.00000 Cu5 0.00000 0.00000 0.19430 1.00000 O1 0.00000 0.13340 0.10470 1.00000 O2 0.50000 0.21000 0.10470 1.00000 O3 0.00000 0.07300 0.19500 1.00000 O4 0.50000 0.05700 0.08200 1.00000 O5 0.38000 0.27500 0.17800 0.50000 O6 0.41700 0.13500 0.18500 0.50000 O7 0.24400 0.09100 0.00000 1.00000 O8 0.24400 0.17040 0.00000 1.00000 O9 0.25000 0.25000 0.00000 1.00000 O10 0.24400 0.00000 0.13700 1.00000 O11 0.25000 0.00000 0.25000 1.00000 O12 0.35000 0.00000 0.00000 0.50000