data_[Ac2Nd4Sm8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Nd  1.1400  1.8500  1.2765
  Sm  1.1700  1.8500  1.2290
]
_symmetry_space_group_name_H-M [P4_2/mnm]
_cell_length_a [9.4513]
_cell_length_b [9.4513]
_cell_length_c [5.8902]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [136]
_chemical_formula_structural [Ac(NdSm2)2]
_chemical_formula_sum '[Ac2 Nd4 Sm8]'
_cell_volume [526.1491]
_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
[
  Ac  Ac0  2  0.0000  0.0000  0.5000  1
  Nd  Nd1  4  0.1970  0.8030  0.0000  1
  Sm  Sm2  8  0.1133  0.6261  0.5000  1
]