data_1001409 _chemical_name_systematic ; Bismuth lead distrontium yttrium dicopper oxide ; _chemical_formula_structural 'Bi Pb Sr2 Y Cu2 O8' _chemical_formula_sum 'Bi Cu2 O8 Pb Sr2 Y' _publ_section_title ; Superconducting properties and Structural Study of Bi~2-x~ Pb~x~ Sr~2~ Ca~1-x~ Y~x~ Cu~2~ O~8~ (0< x< 1) ; loop_ _publ_author_name 'Retoux, R' 'Caignaert, V' 'Provost, J' 'Michel, C' 'Hervieu, M' 'Raveau, B' _journal_name_full 'Journal of Solid State Chemistry' _journal_coden_ASTM JSSCBI _journal_volume 79 _journal_year 1989 _journal_page_first 157 _journal_page_last 168 _cell_length_a 5.385 _cell_length_b 5.424 _cell_length_c 30.316 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 885.5 _cell_formula_units_Z 4 _symmetry_space_group_name_H-M 'F m m m' _symmetry_Int_Tables_number 69 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_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' 'x,1/2+y,1/2+z' '1/2+x,y,1/2+z' '1/2+x,1/2+y,z' 'x,1/2-y,1/2-z' '1/2+x,-y,1/2-z' '1/2+x,1/2-y,-z' '-x,1/2+y,1/2-z' '1/2-x,y,1/2-z' '1/2-x,1/2+y,-z' '-x,1/2-y,1/2+z' '1/2-x,-y,1/2+z' '1/2-x,1/2-y,z' '-x,1/2-y,1/2-z' '1/2-x,-y,1/2-z' '1/2-x,1/2-y,-z' '-x,1/2+y,1/2+z' '1/2-x,y,1/2+z' '1/2-x,1/2+y,z' 'x,1/2-y,1/2+z' '1/2+x,-y,1/2+z' '1/2+x,1/2-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_type_symbol _atom_type_oxidation_number Bi3+ 3.000 Pb2+ 2.000 Sr2+ 2.000 Y3+ 3.000 Cu2+ 2.000 O2- -2.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Bi1 Bi3+ 8 i 0. 0. 0.2018(6) 0.5 0 d Pb1 Pb2+ 8 i 0. 0. 0.2018(6) 0.5 0 d Sr1 Sr2+ 8 i 0. 0. 0.6147(9) 1. 0 d Y1 Y3+ 4 b 0. 0. 0.5 1. 0 d Cu1 Cu2+ 8 i 0. 0. 0.0554(13) 1. 0 d O1 O2- 16 j 0.25 0.25 0.049(2) 1. 0 d O2 O2- 8 i 0. 0. 0.686(4) 1. 0 d O3 O2- 8 i 0. 0. 0.133(5) 1. 0 d _refine_ls_R_factor_all 0.069