data_global _amcsd_formula_title 'Na2SeO3' loop_ _publ_author_name 'Wickleder M S' _journal_name_full 'Acta Crystallographica, Section E' _journal_volume 58 _journal_year 2002 _journal_page_first i103 _journal_page_last i104 _publ_section_title ; Sodium selenite, Na2SeO3 ; _database_code_amcsd 0010389 _chemical_formula_sum 'Na2 Se O3' _cell_length_a 4.9089 _cell_length_b 10.0072 _cell_length_c 6.8535 _cell_angle_alpha 90 _cell_angle_beta 91.11 _cell_angle_gamma 90 _cell_volume 336.611 _exptl_crystal_density_diffrn 3.412 _symmetry_space_group_name_H-M 'P 1 21/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-x,1/2+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 Na1 0.24310 0.74700 0.41510 0.01900 Na2 0.73970 0.91330 0.65260 0.01790 Se 0.77619 0.91566 0.18757 0.01143 O1 0.75170 1.05670 0.32530 0.01630 O2 0.71520 0.79200 0.35230 0.01690 O3 1.11580 0.89960 0.16450 0.01690 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 Na1 0.01830 0.01740 0.02130 -0.00180 0.00370 0.00410 Na2 0.01590 0.01480 0.02290 -0.00130 0.00110 -0.00360 Se 0.01120 0.00950 0.01360 0.00050 0.00239 -0.00020 O1 0.01310 0.01500 0.02130 0.00000 0.00390 -0.00160 O2 0.01900 0.01300 0.01900 0.00060 0.00350 0.00240 O3 0.01680 0.01600 0.01840 0.00170 0.00490 0.00160