data_[Na2Sn1Bi4Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sn  1.9600  1.4500  0.8300
  Bi  2.0200  1.6000  1.0350
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [6.1693]
_cell_length_b [6.8013]
_cell_length_c [7.6854]
_cell_angle_alpha [78.3368]
_cell_angle_beta [76.4810]
_cell_angle_gamma [69.6253]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Na2Sn(Bi2Pb)2]
_chemical_formula_sum '[Na2 Sn1 Bi4 Pb2]'
_cell_volume [291.3337]
_cell_formula_units_Z [1]
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  0.3554  0.1369  0.1956  1.0
  Sn  Sn1  1  0.0000  0.0000  0.0000  1.0
  Bi  Bi2  2  0.2046  0.8106  0.6072  1.0
  Bi  Bi3  2  0.3965  0.6117  0.1859  1.0
  Pb  Pb4  2  0.1888  0.3084  0.6464  1.0
]