data_[Cu2Ag2Cl4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  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 [Cm]
_cell_length_a [11.4861]
_cell_length_b [3.5853]
_cell_length_c [4.2813]
_cell_angle_alpha [90.0000]
_cell_angle_beta [91.5558]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [CuAgCl2]
_chemical_formula_sum '[Cu2 Ag2 Cl4]'
_cell_volume [176.2426]
_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
[
  Cu  Cu0  2  0.0693  0.5000  0.3801  1.0
  Ag  Ag1  2  0.2488  0.0000  0.2002  1.0
  Cl  Cl2  2  0.2174  0.5000  0.7135  1.0
  Cl  Cl3  2  0.4645  0.5000  0.2062  1.0
]