data_[K8Tl4Sb8Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Tl  1.6200  1.9000  1.3325
  Sb  2.0500  1.4500  0.8300
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [7.8133]
_cell_length_b [15.7369]
_cell_length_c [7.7547]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [K2TlSb2Pb]
_chemical_formula_sum '[K8 Tl4 Sb8 Pb4]'
_cell_volume [953.4939]
_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  8  0.2350  0.1667  0.5000  1.0
  Tl  Tl1  4  0.0000  0.0000  0.2500  1.0
  Sb  Sb2  8  0.2489  0.3965  0.5000  1.0
  Pb  Pb3  4  0.0000  0.5000  0.2500  1.0
]