data_global _amcsd_formula_title 'AgNbO3' loop_ _publ_author_name 'Fabry J' 'Zikmund Z' 'Kania A' 'Petricek V' _journal_name_full 'Acta Crystallographica, Section C' _journal_volume 56 _journal_year 2000 _journal_page_first 916 _journal_page_last 918 _publ_section_title ; Structural study of AgNbO3 at room temperature _cod_database_code 1100917 ; _database_code_amcsd 0018277 _chemical_formula_sum 'Ag Nb O3' _cell_length_a 5.5462 _cell_length_b 5.6028 _cell_length_c 15.6365 _cell_angle_alpha 90.00 _cell_angle_beta 90.00 _cell_angle_gamma 90.00 _cell_volume 485.892 _exptl_crystal_density_diffrn 6.801 _symmetry_space_group_name_H-M 'P b c m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-x,1/2+y,1/2-z' '-x,1/2+y,z' 'x,1/2-y,-z' 'x,y,1/2-z' '-x,-y,1/2+z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Ag1 0.75770 0.22738 0.75000 0.01280 Ag2 0.75550 0.25000 0.50000 0.01280 Nb 0.74525 0.72338 0.62501 0.00590 O1 0.69780 0.76640 0.75000 0.00900 O2 0.80430 0.75000 0.50000 0.00950 O3 0.46620 0.53640 0.61132 0.00880 O4 -0.03340 0.47270 0.63865 0.00920 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Ag1 0.01280 0.01230 0.01330 -0.00211 0.00000 0.00000 Ag2 0.01130 0.01410 0.01300 0.00000 0.00000 0.00107 Nb 0.00510 0.00400 0.00850 -0.00014 -0.00061 0.00031 O1 0.01180 0.01190 0.00310 0.00090 0.00000 0.00000 O2 0.01000 0.01270 0.00590 0.00000 0.00000 0.00040 O3 0.00640 0.00840 0.01150 -0.00330 -0.00130 0.00140 O4 0.00860 0.00770 0.01140 0.00300 0.00100 0.00130