data_[Ac8Pm20Sm12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Pm  1.1300  1.8500  1.1100
  Sm  1.1700  1.8500  1.2290
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [11.1273]
_cell_length_b [14.4465]
_cell_length_c [10.4598]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.9152]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Ac2Pm5Sm3]
_chemical_formula_sum '[Ac8 Pm20 Sm12]'
_cell_volume [1499.2820]
_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
[
  Ac  Ac0  8  0.1765  0.1239  0.0500  1
  Pm  Pm1  8  0.2033  0.1288  0.6689  1
  Pm  Pm2  4  0.0000  0.0247  0.2500  1
  Pm  Pm3  4  0.0000  0.2439  0.2500  1
  Pm  Pm4  4  0.0000  0.4962  0.2500  1
  Sm  Sm5  8  0.1599  0.3768  0.5699  1
  Sm  Sm6  4  0.0000  0.2694  0.7500  1
]