data_[Na26Sn6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [7.6035]
_cell_length_b [11.4987]
_cell_length_c [11.8200]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Na13Sn3]
_chemical_formula_sum '[Na26 Sn6]'
_cell_volume [1033.4212]
_cell_formula_units_Z [2]
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  0.2381  0.2346  0.7793  1
  Na  Na1  4  0.0000  0.2476  0.0311  1
  Na  Na2  4  0.2570  0.0000  0.4872  1
  Na  Na3  4  0.5000  0.2082  0.0169  1
  Na  Na4  2  0.0000  0.0000  0.2128  1
  Na  Na5  2  0.5000  0.0000  0.2196  1
  Na  Na6  2  0.5000  0.0000  0.7493  1
  Sn  Sn7  4  0.1988  0.0000  0.9552  1
  Sn  Sn8  2  0.0000  0.0000  0.7203  1
]