data_[Rb4I2Cl2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  I  2.6600  1.4000  1.2733
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.1021]
_cell_length_b [7.1002]
_cell_length_c [7.1031]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0037]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Rb2ICl]
_chemical_formula_sum '[Rb4 I2 Cl2]'
_cell_volume [358.1817]
_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  0.2423  0.2500  0.4945  1
  Rb  Rb1  2  0.2566  0.7500  0.9949  1
  I  I2  2  0.2579  0.7500  0.4944  1
  Cl  Cl3  2  0.2433  0.2500  0.9949  1
]