data_[Na4Ag4Bi6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ag  1.9300  1.6000  1.0867
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.7950]
_cell_length_b [4.6429]
_cell_length_c [8.0726]
_cell_angle_alpha [90.0000]
_cell_angle_beta [113.5009]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Ag2Bi3]
_chemical_formula_sum '[Na4 Ag4 Bi6]'
_cell_volume [405.4136]
_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  0.1528  0.0000  0.8027  1.0
  Ag  Ag1  4  0.1360  0.0000  0.2347  1.0
  Bi  Bi2  4  0.1185  0.5000  0.4580  1.0
  Bi  Bi3  2  0.0000  0.5000  0.0000  1.0
]