data_[Rb8Na24Sn8]
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
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [16.8293]
_cell_length_b [12.4275]
_cell_length_c [7.9972]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.5727]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbNa3Sn]
_chemical_formula_sum '[Rb8 Na24 Sn8]'
_cell_volume [1618.7820]
_cell_formula_units_Z [8]
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  0.0395  0.2500  1.0
  Rb  Rb1  4  0.0000  0.3611  0.7500  1.0
  Na  Na2  8  0.1767  0.4976  0.0919  1.0
  Na  Na3  8  0.1796  0.1694  0.0838  1.0
  Na  Na4  8  0.1943  0.1656  0.5981  1.0
  Sn  Sn5  8  0.0893  0.3276  0.3018  1.0
]