data_[Rb2Cu2Ag4I8]
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
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [10.1745]
_cell_length_b [7.9385]
_cell_length_c [7.8973]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [RbCu(AgI2)2]
_chemical_formula_sum '[Rb2 Cu2 Ag4 I8]'
_cell_volume [637.8650]
_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  2  0.0000  0.1696  0.4897  1.0
  Cu  Cu1  2  0.0000  0.8129  0.9984  1.0
  Ag  Ag2  4  0.2486  0.3333  0.0079  1.0
  I  I3  4  0.2008  0.6628  0.1478  1.0
  I  I4  2  0.0000  0.1451  0.0321  1.0
  I  I5  2  0.0000  0.7489  0.6685  1.0
]