data_[K4Na14Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Na  0.9300  1.8000  1.1600
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.3401]
_cell_length_b [10.5125]
_cell_length_c [7.2321]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.4424]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Na7Pb2]
_chemical_formula_sum '[K4 Na14 Pb4]'
_cell_volume [847.1931]
_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
[
  K  K0  4  0.0000  0.1826  0.0000  1.0
  Na  Na1  8  0.1832  0.2841  0.7068  1.0
  Na  Na2  4  0.0531  0.5000  0.2711  1.0
  Na  Na3  2  0.0000  0.0000  0.5000  1.0
  Pb  Pb4  4  0.2459  0.5000  0.0779  1.0
]