data_[Na4Ag6Bi4]
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 [11.1139]
_cell_length_b [4.8686]
_cell_length_c [7.3910]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.6399]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Ag3Bi2]
_chemical_formula_sum '[Na4 Ag6 Bi4]'
_cell_volume [369.1023]
_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  0.1420  0.0000  0.7448  1.0
  Ag  Ag1  4  0.1002  0.5000  0.4249  1.0
  Ag  Ag2  2  0.0000  0.5000  0.0000  1.0
  Bi  Bi3  4  0.1448  0.0000  0.2274  1.0
]