data_[Er8Tl4Pb4]
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
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [6.3049]
_cell_length_b [6.3076]
_cell_length_c [11.8563]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.6539]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [Er2TlPb]
_chemical_formula_sum '[Er8 Tl4 Pb4]'
_cell_volume [456.1748]
_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  4  0.1937  0.3759  0.6298  1.0
  Er  Er1  4  0.3198  0.1296  0.3656  1.0
  Tl  Tl2  4  0.1617  0.1227  0.0967  1.0
  Pb  Pb3  4  0.3204  0.3668  0.9020  1.0
]