data_[Na4Tl16Sn6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tl  1.6200  1.9000  1.3325
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.1076]
_cell_length_b [8.8372]
_cell_length_c [6.7308]
_cell_angle_alpha [90.0000]
_cell_angle_beta [98.9551]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Tl8Sn3]
_chemical_formula_sum '[Na4 Tl16 Sn6]'
_cell_volume [828.9183]
_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  4  0.1986  0.0000  0.2795  1.0
  Tl  Tl1  8  0.1154  0.3126  0.4353  1.0
  Tl  Tl2  4  0.0980  0.5000  0.8945  1.0
  Tl  Tl3  4  0.1907  0.0000  0.7978  1.0
  Sn  Sn4  4  0.0000  0.1686  0.0000  1.0
  Sn  Sn5  2  0.0000  0.0000  0.5000  1.0
]