data_[K4Na8Pb2]
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 [P2_1/m]
_cell_length_a [8.5151]
_cell_length_b [6.9773]
_cell_length_c [10.2790]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.5293]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [K2Na4Pb]
_chemical_formula_sum '[K4 Na8 Pb2]'
_cell_volume [607.8563]
_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  2  0.0703  0.7500  0.3997  1.0
  K  K1  2  0.1264  0.2500  0.9495  1.0
  Na  Na2  4  0.3919  0.5002  0.6628  1.0
  Na  Na3  2  0.2478  0.2500  0.3154  1.0
  Na  Na4  2  0.3680  0.7500  0.0218  1.0
  Pb  Pb5  2  0.1168  0.7500  0.7673  1.0
]