data_[Ba2Tl4Sn12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Tl  1.6200  1.9000  1.3325
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [5.0600]
_cell_length_b [7.6468]
_cell_length_c [15.5161]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Ba(TlSn3)2]
_chemical_formula_sum '[Ba2 Tl4 Sn12]'
_cell_volume [600.3716]
_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
[
  Ba  Ba0  2  0.0000  0.5000  0.5000  1
  Tl  Tl1  4  0.0000  0.0000  0.3895  1
  Sn  Sn2  8  0.0000  0.2002  0.1969  1
  Sn  Sn3  4  0.0000  0.3114  0.0000  1
]