data_[Rb8Na8Sn4]
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/m]
_cell_length_a [14.2434]
_cell_length_b [6.2512]
_cell_length_c [12.5401]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.4902]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Na2Sn]
_chemical_formula_sum '[Rb8 Na8 Sn4]'
_cell_volume [920.2827]
_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  0.1508  0.0000  0.9982  1.0
  Rb  Rb1  4  0.1782  0.0000  0.3526  1.0
  Na  Na2  4  0.0138  0.5000  0.6632  1.0
  Na  Na3  4  0.1456  0.0000  0.6604  1.0
  Sn  Sn4  4  0.0725  0.5000  0.1404  1.0
]