data_[Nd20Si8Sb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Si  1.9000  1.1000  0.5400
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [7.9266]
_cell_length_b [7.9266]
_cell_length_c [14.3504]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [Nd5Si2Sb]
_chemical_formula_sum '[Nd20 Si8 Sb4]'
_cell_volume [901.6527]
_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  0.1711  0.3289  0.3605  1
  Nd  Nd1  4  0.0000  0.0000  0.0000  1
  Si  Si2  8  0.1205  0.6205  0.5000  1
  Sb  Sb3  4  0.0000  0.0000  0.2500  1
]