data_[K4Bi4Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Bi  2.0200  1.6000  1.0350
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [6.5999]
_cell_length_b [7.0433]
_cell_length_c [10.1334]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [KBiPb]
_chemical_formula_sum '[K4 Bi4 Pb4]'
_cell_volume [471.0470]
_cell_formula_units_Z [4]
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  0.0000  0.0000  0.9997  1.0
  K  K1  2  0.0000  0.5000  0.7518  1.0
  Bi  Bi2  4  0.0000  0.2684  0.3598  1.0
  Pb  Pb3  4  0.2422  0.5000  0.1395  1.0
]