data_1004097 _chemical_name_systematic ; Bismuth lead vanadium oxide (1.9/0.2/0.9/5.3) ; _chemical_formula_structural 'Bi1.9 Pb0.2 V0.9 O5.3' _chemical_formula_sum 'Bi1.9 O5.3 Pb.2 V.9' _publ_section_title ; Electrical and structural investigations on a new bismuth lead vanadium oxide solid electrolyte ; loop_ _publ_author_name 'Vannier, R N' 'Mairesse, G' 'Nowogrocki, G' 'Abraham, F' 'Boivin, J C' _journal_name_full 'Solid State Ionics' _journal_coden_ASTM SSIOD3 _journal_volume 53 _journal_year 1992 _journal_page_first 713 _journal_page_last 722 _cell_length_a 3.965(3) _cell_length_b 3.965(3) _cell_length_c 15.46(1) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 243.1 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'I 4/m m m' _symmetry_Int_Tables_number 139 _symmetry_cell_setting tetragonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,-y,z' '-x,y,z' 'x,-y,z' '-y,x,z' 'y,-x,z' 'y,x,z' '-y,-x,z' '-x,-y,-z' 'x,y,-z' 'x,-y,-z' '-x,y,-z' 'y,-x,-z' '-y,x,-z' '-y,-x,-z' 'y,x,-z' '1/2+x,1/2+y,1/2+z' '1/2-x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2+z' '1/2-y,1/2+x,1/2+z' '1/2+y,1/2-x,1/2+z' '1/2+y,1/2+x,1/2+z' '1/2-y,1/2-x,1/2+z' '1/2-x,1/2-y,1/2-z' '1/2+x,1/2+y,1/2-z' '1/2+x,1/2-y,1/2-z' '1/2-x,1/2+y,1/2-z' '1/2+y,1/2-x,1/2-z' '1/2-y,1/2+x,1/2-z' '1/2-y,1/2-x,1/2-z' '1/2+y,1/2+x,1/2-z' loop_ _atom_type_symbol _atom_type_oxidation_number Bi3+ 3.000 Pb2+ 2.000 V5+ 5.000 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+ 16 m 0.037(1) 0.037(1) 0.1634(2) 0.1188 0 d Pb1 Pb2+ 16 m 0.037(1) 0.037(1) 0.1634(2) 0.0063 0 d Bi2 Bi3+ 4 e 0. 0. 0.1763(2) 0.475 0 d Pb2 Pb2+ 4 e 0. 0. 0.1763(2) 0.025 0 d V1 V5+ 16 n 0.061(2) 0. 0.5109(5) 0.1125 0 d Pb3 Pb2+ 16 n 0.061(2) 0. 0.5109(5) 0.0125 0 d O1 O2- 4 d 0. 0.5 0.25 1. 0 d O2 O2- 16 n 0.165(14) 0. 0.408(3) 0.25 0 d O3 O2- 8 i 0.414(31) 0. 0. 0.325 0 d _refine_ls_R_factor_all 0.042