data_[Na4Hg4Os2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Hg  2.0000  1.5000  1.2450
  Os  2.2000  1.3000  0.6730
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.7658]
_cell_length_b [10.6042]
_cell_length_c [6.5266]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.0928]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Hg2OsO6]
_chemical_formula_sum '[Na4 Hg4 Os2 O12]'
_cell_volume [383.4124]
_cell_formula_units_Z [2]
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
[
  Na  Na0  4  0.0000  0.3302  0.5000  1.0
  Hg  Hg1  4  0.0000  0.1380  0.0000  1.0
  Os  Os2  2  0.0000  0.0000  0.5000  1.0
  O  O3  8  0.0727  0.1452  0.3227  1.0
  O  O4  4  0.1897  0.5000  0.3535  1.0
]