data_[K4Cu4Pb2Cl12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Cu  1.9000  1.3500  0.8200
  Pb  2.3300  1.8000  1.1225
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.7348]
_cell_length_b [7.5473]
_cell_length_c [7.7250]
_cell_angle_alpha [90.0000]
_cell_angle_beta [119.8390]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Cu2PbCl6]
_chemical_formula_sum '[K4 Cu4 Pb2 Cl12]'
_cell_volume [644.0405]
_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  0.2285  0.5000  0.1922  1.0
  Cu  Cu1  4  0.0420  0.0000  0.2018  1.0
  Pb  Pb2  2  0.0000  0.5000  0.5000  1.0
  Cl  Cl3  8  0.0649  0.2465  0.8219  1.0
  Cl  Cl4  4  0.2449  0.0000  0.3799  1.0
]