data_[Na12Zn2Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Zn  1.6500  1.3500  0.8800
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.3185]
_cell_length_b [5.5765]
_cell_length_c [9.4534]
_cell_angle_alpha [90.0000]
_cell_angle_beta [98.1877]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na6ZnPb2]
_chemical_formula_sum '[Na12 Zn2 Pb4]'
_cell_volume [538.4196]
_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  0.0219  0.5000  0.7142  1.0
  Na  Na1  4  0.1688  0.0000  0.5990  1.0
  Na  Na2  4  0.1963  0.5000  0.0571  1.0
  Zn  Zn3  2  0.0000  0.0000  0.0000  1.0
  Pb  Pb4  4  0.1509  0.0000  0.2563  1.0
]