data_[Na20Ag4Pb4]
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
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [8.5947]
_cell_length_b [8.5828]
_cell_length_c [11.6104]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.9871]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Na5AgPb]
_chemical_formula_sum '[Na20 Ag4 Pb4]'
_cell_volume [834.5593]
_cell_formula_units_Z [4]
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  0.1294  0.3680  0.0258  1.0
  Na  Na1  8  0.2020  0.2266  0.3459  1.0
  Na  Na2  4  0.0000  0.1212  0.7500  1.0
  Ag  Ag3  4  0.0000  0.4779  0.7500  1.0
  Pb  Pb4  4  0.0000  0.0000  0.0000  1.0
]