data_[Rb16Sb4I4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sb  2.0500  1.4500  0.8300
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.9153]
_cell_length_b [22.0969]
_cell_length_c [9.9863]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Rb4SbI]
_chemical_formula_sum '[Rb16 Sb4 I4]'
_cell_volume [1305.3124]
_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  8  0.0000  0.3282  0.0308  1
  Rb  Rb1  4  0.0000  0.0455  0.7500  1
  Rb  Rb2  4  0.0000  0.1786  0.2500  1
  Sb  Sb3  4  0.0000  0.2082  0.7500  1
  I  I4  4  0.0000  0.4459  0.7500  1
]