data_[Na8Ga4Hg4Bi8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ga  1.8100  1.3000  0.7600
  Hg  2.0000  1.5000  1.2450
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [7.0635]
_cell_length_b [14.5771]
_cell_length_c [7.0878]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [Na2GaHgBi2]
_chemical_formula_sum '[Na8 Ga4 Hg4 Bi8]'
_cell_volume [729.7914]
_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  8  0.2221  0.1547  0.0000  1.0
  Ga  Ga1  4  0.0000  0.5000  0.2500  1.0
  Hg  Hg2  4  0.0000  0.0000  0.2500  1.0
  Bi  Bi3  8  0.2192  0.3816  0.0000  1.0
]