data_[Rb8Sn4H4I20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sn  1.9600  1.4500  0.8300
  H  2.2000  0.2500  0.0000
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.9184]
_cell_length_b [21.4842]
_cell_length_c [14.7679]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Rb2SnHI5]
_chemical_formula_sum '[Rb8 Sn4 H4 I20]'
_cell_volume [1560.5085]
_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  0.1247  0.6898  1.0
  Rb  Rb1  4  0.0000  0.1430  0.3423  1.0
  Sn  Sn2  4  0.0000  0.1785  0.0207  1.0
  H  H3  4  0.0000  0.4814  0.3924  1.0
  I  I4  4  0.0000  0.0376  0.0359  1.0
  I  I5  4  0.0000  0.3057  0.6654  1.0
  I  I6  4  0.0000  0.3168  0.3713  1.0
  I  I7  4  0.0000  0.3370  0.0187  1.0
  I  I8  4  0.0000  0.4925  0.7875  1.0
]