data_[Pr4Gd4Mg16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Gd  1.2000  1.8000  1.0750
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [F-43m]
_cell_length_a [8.6424]
_cell_length_b [8.6424]
_cell_length_c [8.6424]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [216]
_chemical_formula_structural [PrGdMg4]
_chemical_formula_sum '[Pr4 Gd4 Mg16]'
_cell_volume [645.5190]
_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
[
  Pr  Pr0  4  0.2500  0.2500  0.2500  1
  Gd  Gd1  4  0.0000  0.0000  0.0000  1
  Mg  Mg2  16  0.1249  0.1249  0.6249  1
]