data_[Rb1Ba2Sn1I8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ba  0.8900  2.1500  1.4900
  Sn  1.9600  1.4500  0.8300
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [7.7029]
_cell_length_b [10.5440]
_cell_length_c [7.8178]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.2514]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [RbBa2SnI8]
_chemical_formula_sum '[Rb1 Ba2 Sn1 I8]'
_cell_volume [634.9523]
_cell_formula_units_Z [1]
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  1  0.0000  0.5000  0.0000  1.0
  Ba  Ba1  2  0.5000  0.2454  0.5000  1.0
  Sn  Sn2  1  0.0000  0.0000  0.0000  1.0
  I  I3  4  0.2361  0.2080  0.8627  1.0
  I  I4  2  0.2265  0.0000  0.3349  1.0
  I  I5  2  0.2554  0.5000  0.3792  1.0
]