data_[Rb4Cu4Ag2Cl12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  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/m]
_cell_length_a [13.4541]
_cell_length_b [7.1388]
_cell_length_c [7.4176]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.4395]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Cu2AgCl6]
_chemical_formula_sum '[Rb4 Cu4 Ag2 Cl12]'
_cell_volume [637.9119]
_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
[
  Rb  Rb0  4  0.2225  0.5000  0.1988  1.0
  Cu  Cu1  4  0.0564  0.0000  0.2193  1.0
  Ag  Ag2  2  0.0000  0.5000  0.5000  1.0
  Cl  Cl3  8  0.0454  0.2499  0.7825  1.0
  Cl  Cl4  4  0.2364  0.0000  0.3122  1.0
]