data_[Na4Hg8Bi10]
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
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.8464]
_cell_length_b [6.4660]
_cell_length_c [9.6015]
_cell_angle_alpha [90.0000]
_cell_angle_beta [127.8734]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Hg4Bi5]
_chemical_formula_sum '[Na4 Hg8 Bi10]'
_cell_volume [678.5729]
_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  0.2066  0.5000  0.7495  1.0
  Hg  Hg1  4  0.2421  0.5000  0.1239  1.0
  Hg  Hg2  4  0.2467  0.5000  0.4631  1.0
  Bi  Bi3  8  0.0069  0.2414  0.8243  1.0
  Bi  Bi4  2  0.0000  0.0000  0.5000  1.0
]