data_[Nd2Ta4Al8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Ta  1.5000  1.4500  0.8200
  Al  1.6100  1.2500  0.6750
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [6.9806]
_cell_length_b [6.9806]
_cell_length_c [5.4879]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Nd(TaAl2)2]
_chemical_formula_sum '[Nd2 Ta4 Al8]'
_cell_volume [267.4204]
_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
[
  Nd  Nd0  2  0.0000  0.0000  0.0000  1.0
  Ta  Ta1  4  0.0000  0.5000  0.2500  1.0
  Al  Al2  8  0.1935  0.8065  0.5000  1.0
]