data_[Na4Hg4W4O16]
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
  W  2.3600  1.3500  0.7667
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.9896]
_cell_length_b [6.5589]
_cell_length_c [7.4241]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.3944]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaHgWO4]
_chemical_formula_sum '[Na4 Hg4 W4 O16]'
_cell_volume [574.2361]
_cell_formula_units_Z [4]
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  0.2112  0.5000  0.8540  1.0
  Hg  Hg1  4  0.1064  0.0000  0.4895  1.0
  W  W2  4  0.1285  0.5000  0.2643  1.0
  O  O3  8  0.1664  0.2790  0.1444  1.0
  O  O4  4  0.0201  0.5000  0.7298  1.0
  O  O5  4  0.2151  0.5000  0.5052  1.0
]