data_global _amcsd_formula_title 'Na3Eu(CO3)3' loop_ _publ_author_name 'Mercier N' 'Leblanc M' 'Antic-Fidancev E' 'Lemaitre-Blaise M' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 132 _journal_year 1997 _journal_page_first 33 _journal_page_last 40 _publ_section_title ; Structural and optical investigations of sodium europium carbonate Na3Eu(CO3)3 _cod_database_code 1000450 ; _database_code_amcsd 0013932 _chemical_formula_sum 'Na3 Eu C3 O9' _cell_length_a 9.942 _cell_length_b 11.024 _cell_length_c 7.147 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 783.316 _exptl_crystal_density_diffrn 3.400 _symmetry_space_group_name_H-M 'A m a 2' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2+y,1/2+z' '1/2+x,-y,z' '1/2+x,1/2-y,1/2+z' '1/2-x,y,z' '1/2-x,1/2+y,1/2+z' '-x,-y,z' '-x,1/2-y,1/2+z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Na1 0.25000 0.79260 0.00190 Na2 0.00000 0.00000 0.06670 Na3 0.25000 0.01800 0.38740 Eu1 0.25000 0.72838 0.50000 C1 -0.00110 0.20390 0.32590 C2 0.25000 0.01220 0.77140 O1 0.25000 0.11580 0.69240 O2 0.11310 0.16480 0.26620 O3 0.10930 0.85860 0.29910 O4 0.25000 0.41330 0.17900 O5 0.01010 0.19690 -0.08300 O6 0.25000 0.00960 -0.04440 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 0.01180 0.00670 0.00940 0.00000 0.00000 0.00240 Na2 0.01660 0.01240 0.02090 -0.00120 0.00000 0.00000 Na3 0.01370 0.01020 0.01700 0.00000 0.00000 0.00220 Eu1 0.00700 0.00610 0.00770 0.00000 0.00000 0.00045 C1 0.00930 0.01040 0.00860 -0.00070 0.00160 0.00000 C2 0.01370 0.00700 0.01250 0.00000 0.00000 -0.00220 O1 0.02850 0.00940 0.01180 0.00000 0.00000 0.00200 O2 0.00750 0.01580 0.01420 0.00240 0.00280 0.00150 O3 0.00950 0.01190 0.02170 -0.00290 -0.00340 0.00460 O4 0.02760 0.01110 0.01480 0.00000 0.00000 -0.00400 O5 0.01400 0.01640 0.02220 -0.00340 -0.00460 0.01080 O6 0.02060 0.01140 0.00970 0.00000 0.00000 0.00190