data_2005004 _journal_name_full 'Acta Crystallographica' _journal_year 1996 _journal_volume C52 _journal_page_first 1329 _journal_page_last 1331 _publ_section_title ; Yttrium and Titanium Bismuthates with Structures Related to \b-Bi~2~O~3~ ; _chemical_formula_sum 'Bi7.5 Y0.5 O12' _chemical_formula_weight 1803.8 _symmetry_cell_setting tetragonal _symmetry_space_group_name_H-M 'P 42/n m c' _cell_length_a 7.7451(7) _cell_length_b 7.7451(7) _cell_length_c 5.6351(6) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 338.03 _cell_formula_units_Z 1 _exptl_crystal_density_diffrn 8.860 _cell_measurement_wavelength 1.54056 _cell_measurement_temperature room loop_ _atom_site_label _atom_site_occupancy _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_B_iso_or_equiv 'Bi,Y' 1.0 8g 0 0.258(2) 0.234(2) 2.0(2) O1 0.98 8f 0.302(3) 0.302(3) 0 3.6(4) O2 0.93 4d 0 0.5 0.393(6) 2.0(5) O3 0.22 2a 0 0 0 4(5)