data_[Nd20Al8Tl4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Al  1.6100  1.2500  0.6750
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [8.0466]
_cell_length_b [8.0466]
_cell_length_c [15.0283]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [Nd5Al2Tl]
_chemical_formula_sum '[Nd20 Al8 Tl4]'
_cell_volume [973.0369]
_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
[
  Nd  Nd0  16  0.1709  0.3291  0.3534  1.0
  Nd  Nd1  4  0.0000  0.0000  0.0000  1.0
  Al  Al2  8  0.1175  0.6175  0.5000  1.0
  Tl  Tl3  4  0.0000  0.0000  0.2500  1.0
]