data_[K6Na12Pb2]
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 [Pnnm]
_cell_length_a [12.5083]
_cell_length_b [12.5273]
_cell_length_c [5.7080]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [58]
_chemical_formula_structural [K3Na6Pb]
_chemical_formula_sum '[K6 Na12 Pb2]'
_cell_volume [894.4094]
_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  0.0586  0.7556  0.5000  1.0
  K  K1  2  0.0000  0.5000  0.0000  1.0
  Na  Na2  4  0.1491  0.2111  0.0000  1.0
  Na  Na3  4  0.1494  0.0381  0.5000  1.0
  Na  Na4  4  0.2469  0.8942  0.0000  1.0
  Pb  Pb5  2  0.0000  0.0000  0.0000  1.0
]