data_[Na2Bi2Pb8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Bi  2.0200  1.6000  1.0350
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.1898]
_cell_length_b [9.4498]
_cell_length_c [6.6706]
_cell_angle_alpha [90.0000]
_cell_angle_beta [121.4587]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaBiPb4]
_chemical_formula_sum '[Na2 Bi2 Pb8]'
_cell_volume [386.6027]
_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  2  0.0000  0.0000  0.0000  1.0
  Bi  Bi1  2  0.0000  0.5000  0.5000  1.0
  Pb  Pb2  8  0.2478  0.3162  0.2620  1.0
]