data_global _amcsd_formula_title 'Bi2O4' loop_ _publ_author_name 'Kumada N' 'Kinomura N' 'Woodward P M' 'Sleight A W' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 116 _journal_year 1995 _journal_page_first 281 _journal_page_last 285 _publ_section_title ; Crystal structure of Bi2O4 with beta-Sb2O4-type structure ; _database_code_amcsd 0013863 _chemical_formula_sum 'Bi O2' _cell_length_a 12.3668 _cell_length_b 5.1180 _cell_length_c 5.5670 _cell_angle_alpha 90 _cell_angle_beta 107.838 _cell_angle_gamma 90 _cell_volume 335.415 _exptl_crystal_density_diffrn 9.544 _symmetry_space_group_name_H-M 'C 1 2/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-z' '-x,-y,-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_U_iso_or_equiv Bi5+ 0.25000 0.25000 0.00000 0.00760 Bi3+ 0.00000 0.26800 0.25000 0.01520 O1 0.17870 0.06300 0.65200 0.01900 O2 0.09330 0.41600 0.97300 0.01646