data_[Er20Tl4Os8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Tl  1.6200  1.9000  1.3325
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [7.6700]
_cell_length_b [7.6700]
_cell_length_c [13.6242]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [Er5TlOs2]
_chemical_formula_sum '[Er20 Tl4 Os8]'
_cell_volume [801.5003]
_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
[
  Er  Er0  16  0.1601  0.3399  0.6313  1
  Er  Er1  4  0.0000  0.0000  0.0000  1
  Tl  Tl2  4  0.0000  0.0000  0.2500  1
  Os  Os3  8  0.1392  0.6392  0.5000  1
]