data_[Na1Cu2Ag2Cl6]
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 [P-3]
_cell_length_a [6.9731]
_cell_length_b [6.9731]
_cell_length_c [6.8829]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [147]
_chemical_formula_structural [NaCu2(AgCl3)2]
_chemical_formula_sum '[Na1 Cu2 Ag2 Cl6]'
_cell_volume [289.8341]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.0000  1.0
  Cu  Cu1  2  0.3333  0.6667  0.2259  1.0
  Ag  Ag2  2  0.3333  0.6667  0.7951  1.0
  Cl  Cl3  6  0.0279  0.6875  0.2420  1.0
]