data_[Na2Bi2Pb2Au2]
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
  Au  2.5400  1.3500  1.0700
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [10.7175]
_cell_length_b [4.4902]
_cell_length_c [5.8901]
_cell_angle_alpha [90.0000]
_cell_angle_beta [121.9583]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [NaBiPbAu]
_chemical_formula_sum '[Na2 Bi2 Pb2 Au2]'
_cell_volume [240.4917]
_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  0.2622  0.0000  0.5254  1.0
  Bi  Bi1  2  0.4463  0.0000  0.2142  1.0
  Pb  Pb2  2  0.1518  0.5000  0.9462  1.0
  Au  Au3  2  0.4994  0.5000  0.5698  1.0
]