data_[Rb4Na8Mg4I24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Mg  1.3100  1.5000  0.8600
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [14.8380]
_cell_length_b [17.8689]
_cell_length_c [9.1932]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.5305]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbNa2MgI6]
_chemical_formula_sum '[Rb4 Na8 Mg4 I24]'
_cell_volume [2141.4727]
_cell_formula_units_Z [4]
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  0.0000  0.1073  0.2500  1.0
  Na  Na1  8  0.1262  0.4033  0.1003  1.0
  Mg  Mg2  4  0.0000  0.1576  0.7500  1.0
  I  I3  8  0.1052  0.2330  0.0435  1.0
  I  I4  8  0.1055  0.4388  0.4286  1.0
  I  I5  8  0.1356  0.0641  0.7080  1.0
]