data_global _chemical_name_mineral 'Natromolybdite' loop_ _publ_author_name 'Matsumoto K' 'Kobayashi A' 'Sasaki Y' _journal_name_full 'Bulletin of the Chemical Society of Japan' _journal_volume 48 _journal_year 1975 _journal_page_first 1009 _journal_page_last 1013 _publ_section_title ; The crystal structure of sodium molybdate dihydrate, Na2MoO4*2H2O ; _database_code_amcsd 0021215 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Na2 Mo O6 H4' _cell_length_a 8.463 _cell_length_b 10.552 _cell_length_c 13.827 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1234.773 _exptl_crystal_density_diffrn 2.603 _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 Na1 0.65650 0.49520 0.41450 Na2 0.74240 0.44920 0.64820 Mo 0.51490 0.19820 0.52330 O1 0.55730 0.36020 0.54310 O2 0.45050 0.17590 0.40130 O3 0.68770 0.10900 0.53930 O4 0.37160 0.14860 0.60970 Wat1 0.22880 0.14160 0.20110 Wat2 0.46170 0.40770 0.29960 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 0.01451 0.01354 0.01743 0.00362 -0.00178 -0.00222 Na2 0.01560 0.01636 0.01550 -0.00407 -0.00296 0.00296 Mo 0.01125 0.00903 0.01259 0.00000 0.00059 0.00000 O1 0.01234 0.00677 0.01937 -0.00136 -0.00178 -0.00296 O2 0.01524 0.01467 0.02228 0.01176 -0.00178 0.00591 O3 0.01597 0.01410 0.01647 -0.01086 0.00652 -0.00148 O4 0.01451 0.01579 0.01356 -0.00181 -0.00415 -0.00517 Wat1 0.01996 0.01861 0.01550 0.00000 -0.00593 0.00591 Wat2 0.02576 0.01636 0.02034 0.00317 -0.00534 -0.00370