data_1010020 _chemical_name_systematic 'Lead bismuth oxide (.3/.7/1.3)' _chemical_formula_structural 'Pb0.33 Bi0.67 O1.33' _chemical_formula_sum 'Bi.67 O1.33 Pb.33' _publ_section_title 'Oxide phases with a defect oxygen lattice' loop_ _publ_author_name 'Sillen, L G' 'Aurivillius, B' _journal_name_full ; Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977) ; _journal_coden_ASTM ZEKGAX _journal_volume 101 _journal_year 1939 _journal_page_first 483 _journal_page_last 495 _cell_length_a 4.05 _cell_length_b 4.05 _cell_length_c 4.9 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 80.4 _cell_formula_units_Z 2 _exptl_crystal_density_meas 9.33 _symmetry_space_group_name_H-M 'P 4/n m m S' _symmetry_Int_Tables_number 129 _symmetry_cell_setting tetragonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,-y,z' '1/2+x,1/2+y,-z' '1/2-x,1/2-y,-z' '-x,y,z' 'x,-y,z' '1/2-x,1/2+y,-z' '1/2+x,1/2-y,-z' '-y,x,-z' 'y,-x,-z' '1/2-y,1/2+x,z' '1/2+y,1/2-x,z' 'y,x,-z' '-y,-x,-z' '1/2+y,1/2+x,z' '1/2-y,1/2-x,z' loop_ _atom_type_symbol _atom_type_oxidation_number Pb2+ 2.000 Bi3+ 3.000 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 Pb1 Pb2+ 2 c 0. 0.5 0.22 0.33 0 d Bi1 Bi3+ 2 c 0. 0.5 0.22 0.67 0 d O1 O2- 2 a 0. 0. 0. 0.67 0 d O2 O2- 2 c 0. 0.5 0.66 0.67 0 d