data_[Na10Sn4Pb10]
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
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [9.6819]
_cell_length_b [5.6177]
_cell_length_c [13.4087]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.4022]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na5Sn2Pb5]
_chemical_formula_sum '[Na10 Sn4 Pb10]'
_cell_volume [717.3051]
_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  4  0.1332  0.5000  0.3178  1.0
  Na  Na1  4  0.1724  0.5000  0.0520  1.0
  Na  Na2  2  0.0000  0.0000  0.5000  1.0
  Sn  Sn3  4  0.2241  0.5000  0.8055  1.0
  Pb  Pb4  4  0.0457  0.0000  0.7599  1.0
  Pb  Pb5  4  0.1826  0.5000  0.5661  1.0
  Pb  Pb6  2  0.0000  0.0000  0.0000  1.0
]