data_[Rb8Na4Sn4Br20]
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
  Sn  1.9600  1.4500  0.8300
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.7749]
_cell_length_b [19.3155]
_cell_length_c [14.8229]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Rb2NaSnBr5]
_chemical_formula_sum '[Rb8 Na4 Sn4 Br20]'
_cell_volume [1367.1205]
_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  0.1079  0.6738  1.0
  Rb  Rb1  4  0.0000  0.1496  0.3025  1.0
  Na  Na2  4  0.0000  0.2179  0.0302  1.0
  Sn  Sn3  4  0.0000  0.4660  0.4513  1.0
  Br  Br4  4  0.0000  0.0610  0.0619  1.0
  Br  Br5  4  0.0000  0.2800  0.6564  1.0
  Br  Br6  4  0.0000  0.3259  0.3887  1.0
  Br  Br7  4  0.0000  0.3712  0.9926  1.0
  Br  Br8  4  0.0000  0.4917  0.7666  1.0
]