data_[Na4Cu2Au2Cl12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cu  1.9000  1.3500  0.8200
  Au  2.5400  1.3500  1.0700
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [6.9690]
_cell_length_b [6.9690]
_cell_length_c [10.4374]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Na2CuAuCl6]
_chemical_formula_sum '[Na4 Cu2 Au2 Cl12]'
_cell_volume [506.9134]
_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
[
  Na  Na0  4  0.0000  0.5000  0.2500  1
  Cu  Cu1  2  0.0000  0.0000  0.5000  1
  Au  Au2  2  0.0000  0.0000  0.0000  1
  Cl  Cl3  8  0.2405  0.2405  0.0000  1
  Cl  Cl4  4  0.0000  0.0000  0.2888  1
]