data_[Pm24Sm16Pu4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sm  1.1700  1.8500  1.2290
  Pu  1.2800  1.7500  0.9675
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.5934]
_cell_length_b [23.6873]
_cell_length_c [17.7104]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pm6Sm4Pu]
_chemical_formula_sum '[Pm24 Sm16 Pu4]'
_cell_volume [1507.4678]
_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
[
  Pm  Pm0  8  0.0000  0.0110  0.1617  1
  Pm  Pm1  8  0.0000  0.2410  0.5821  1
  Pm  Pm2  4  0.0000  0.2463  0.2500  1
  Pm  Pm3  4  0.0000  0.5000  0.0000  1
  Sm  Sm4  8  0.0000  0.1299  0.0511  1
  Sm  Sm5  8  0.0000  0.3816  0.1407  1
  Pu  Pu6  4  0.0000  0.3764  0.7500  1
]