data_[Rb4Ag2I6]
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 [Pmc2_1]
_cell_length_a [20.4598]
_cell_length_b [5.1271]
_cell_length_c [12.4344]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Rb2AgI3]
_chemical_formula_sum '[Rb4 Ag2 I6]'
_cell_volume [1304.3643]
_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  0.3826  0.2495  0.9314  1
  Ag  Ag1  2  0.5000  0.2573  0.1804  1
  I  I2  4  0.3666  0.2501  0.2272  1
  I  I3  2  0.5000  0.2502  0.5302  1
]