data_[Rb6Ag2I8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  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 [12.1079]
_cell_length_b [9.9636]
_cell_length_c [7.4441]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [Rb3AgI4]
_chemical_formula_sum '[Rb6 Ag2 I8]'
_cell_volume [898.0530]
_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  0.2307  0.6684  0.0743  1.0
  Rb  Rb1  2  0.0000  0.8635  0.5705  1.0
  Ag  Ag2  2  0.0000  0.1885  0.9787  1.0
  I  I3  4  0.2172  0.3015  0.0762  1.0
  I  I4  2  0.0000  0.2148  0.5944  1.0
  I  I5  2  0.0000  0.8999  0.0707  1.0
]