data_[Na4Cu4Ag4Cl20]
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
  Ag  1.9300  1.6000  1.0867
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.8678]
_cell_length_b [12.1648]
_cell_length_c [9.1328]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.4811]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaCuAgCl5]
_chemical_formula_sum '[Na4 Cu4 Ag4 Cl20]'
_cell_volume [813.3859]
_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
[
  Na  Na0  4  0.0000  0.3130  0.2500  1.0
  Cu  Cu1  4  0.0000  0.3523  0.7500  1.0
  Ag  Ag2  4  0.0000  0.0000  0.0000  1.0
  Cl  Cl3  8  0.0547  0.2359  0.5817  1.0
  Cl  Cl4  8  0.1617  0.4802  0.9245  1.0
  Cl  Cl5  4  0.0000  0.0791  0.2500  1.0
]