data_[Sr4Nd16Sm4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Nd  1.1400  1.8500  1.2765
  Sm  1.1700  1.8500  1.2290
]
_symmetry_space_group_name_H-M [F-43m]
_cell_length_a [9.7756]
_cell_length_b [9.7756]
_cell_length_c [9.7756]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [216]
_chemical_formula_structural [SrNd4Sm]
_chemical_formula_sum '[Sr4 Nd16 Sm4]'
_cell_volume [934.1891]
_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
[
  Sr  Sr0  4  0.2500  0.2500  0.2500  1
  Nd  Nd1  16  0.1280  0.1280  0.6280  1
  Sm  Sm2  4  0.0000  0.0000  0.0000  1
]