data_[Na8Cd2Pb8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cd  1.6900  1.5500  1.0900
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [10.4913]
_cell_length_b [10.4913]
_cell_length_c [4.7466]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Na4CdPb4]
_chemical_formula_sum '[Na8 Cd2 Pb8]'
_cell_volume [522.4461]
_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  8  0.1649  0.8351  0.0000  1
  Cd  Cd1  2  0.0000  0.0000  0.5000  1
  Pb  Pb2  8  0.0000  0.3350  0.5000  1
]