data_global _chemical_name_mineral 'Natromolybdite' loop_ _publ_author_name 'Capitelli F' 'Selim M D' 'Mukherjea K M' _journal_name_full 'Asian Journal of Chemistry' _journal_volume 18 _journal_year 2006 _journal_page_first 2856 _journal_page_last 2860 _publ_section_title ; Synthesis and crystal structure determination of sodium molybdate dihydrate ; _database_code_amcsd 0021217 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Na2 Mo O6 H4' _cell_length_a 8.4780 _cell_length_b 10.5790 _cell_length_c 13.8300 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1240.396 _exptl_crystal_density_diffrn 2.591 _symmetry_space_group_name_H-M 'P b c a' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-x,1/2+y,1/2-z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,-z' '1/2+x,y,1/2-z' '1/2-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 Na1 0.24269 0.05067 -0.14798 0.02300 Na2 0.65690 0.49525 -0.08530 0.02280 Mo 0.51490 0.19824 0.02330 0.01433 O1 0.45070 0.17680 -0.09760 0.02150 O2 0.55660 0.36010 0.04170 0.01970 O3 0.37130 0.14880 0.10910 0.02250 O4 0.68680 0.10890 0.03890 0.02440 O5 0.22950 0.14120 -0.29890 0.02710 O6 0.03750 -0.09080 -0.19940 0.02980 H51 0.27600 0.20600 -0.31700 0.04000 H52 0.15300 0.14600 -0.32000 0.05000 H61 0.05900 -0.10400 -0.25200 0.03000 H62 0.04700 -0.15100 -0.18200 0.04000 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 0.02250 0.02520 0.02130 -0.00190 -0.00190 0.00220 Na2 0.02250 0.02150 0.02430 0.00210 0.00100 0.00130 Mo 0.01500 0.01290 0.01510 0.00000 0.00040 -0.00030 O1 0.02180 0.02440 0.01840 -0.00210 -0.00270 -0.00200 O2 0.02000 0.01520 0.02380 -0.00130 0.00020 -0.00130 O3 0.02280 0.02270 0.02210 -0.00510 0.00410 -0.00010 O4 0.02280 0.02170 0.02870 0.00680 -0.00140 0.00110 O5 0.02660 0.02970 0.02520 -0.00300 -0.00440 0.00640 O6 0.04070 0.02410 0.02450 -0.00090 0.00520 -0.00140