data_[Y8Tl2Ge2Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Tl  1.6200  1.9000  1.3325
  Ge  2.0100  1.2500  0.7700
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [I-4m2]
_cell_length_a [5.9354]
_cell_length_b [5.9354]
_cell_length_c [11.8673]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [119]
_chemical_formula_structural [Y4TlGeSe2]
_chemical_formula_sum '[Y8 Tl2 Ge2 Se4]'
_cell_volume [418.0726]
_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
[
  Y  Y0  4  0.0000  0.0000  0.2417  1
  Y  Y1  4  0.0000  0.5000  0.0025  1
  Tl  Tl2  2  0.0000  0.0000  0.5000  1
  Ge  Ge3  2  0.0000  0.5000  0.2500  1
  Se  Se4  2  0.0000  0.0000  0.0000  1
  Se  Se5  2  0.0000  0.5000  0.7500  1
]