data_global
_chemical_name_mineral 'Thermonatrite'
loop_
_publ_author_name
'Harper J'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 95 
_journal_year 1936
_journal_page_first 266
_journal_page_last 273
_publ_section_title
;
 Crystal structure of sodium carbonate monohydrate, Na2 C O3 H2 O
 _cod_database_code 1011295
;
_database_code_amcsd 0018142
_chemical_formula_sum 'O4 C Na2 H2'
_cell_length_a 10.721
_cell_length_b 5.243
_cell_length_c 6.44
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 361.994
_exptl_crystal_density_diffrn      2.275
_symmetry_space_group_name_H-M 'P c a 21'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,-y,z'
  '1/2-x,y,1/2+z'
  '-x,-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
O1   0.14720   0.54170  -0.25000
O2   0.33860   0.43640  -0.25000
O3   0.28690  -0.17080  -0.25000
O4  -0.02220   0.11110   0.01390
C1   0.26030   0.60250  -0.25000
Na1   0.19440   0.13890  -0.04170
Na2   0.01390  -0.37500   0.04170
H1   0.44500   0.78300   0.12800
H2   0.42200   0.85500  -0.10400