data_[Na8In20Sn8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  In  1.7800  1.5500  0.9400
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Ima2]
_cell_length_a [18.1931]
_cell_length_b [6.9121]
_cell_length_c [8.1348]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [46]
_chemical_formula_structural [Na2In5Sn2]
_chemical_formula_sum '[Na8 In20 Sn8]'
_cell_volume [1022.9701]
_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
[
  Na  Na0  8  0.0890  0.6304  0.9721  1
  In  In1  8  0.0818  0.1350  0.8023  1
  In  In2  8  0.1681  0.5001  0.6295  1
  In  In3  4  0.2500  0.1495  0.4542  1
  Sn  Sn4  4  0.0000  0.0000  0.1372  1
  Sn  Sn5  4  0.2500  0.6152  0.2647  1
]