data_[Tl8Ga4Sn8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Ga  1.8100  1.3000  0.7600
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.5495]
_cell_length_b [4.6885]
_cell_length_c [12.0304]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.7941]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tl2GaSn2]
_chemical_formula_sum '[Tl8 Ga4 Sn8]'
_cell_volume [576.2866]
_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
[
  Tl  Tl0  4  0.0775  0.0000  0.8859  1
  Tl  Tl1  4  0.1744  0.5000  0.6914  1
  Ga  Ga2  4  0.1109  0.5000  0.3291  1
  Sn  Sn3  4  0.1135  0.0000  0.4647  1
  Sn  Sn4  4  0.1356  0.5000  0.1081  1
]