data_[Ac2Pm8Nd16]
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
  Nd  1.1400  1.8500  1.2765
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.6932]
_cell_length_b [5.2280]
_cell_length_c [15.2322]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.4696]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac(PmNd2)4]
_chemical_formula_sum '[Ac2 Pm8 Nd16]'
_cell_volume [928.3524]
_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  0.0000  1
  Pm  Pm1  4  0.1194  0.5000  0.1581  1
  Pm  Pm2  4  0.1538  0.0000  0.5381  1
  Nd  Nd3  4  0.0398  0.5000  0.3866  1
  Nd  Nd4  4  0.0747  0.0000  0.7653  1
  Nd  Nd5  4  0.1917  0.5000  0.9199  1
  Nd  Nd6  4  0.2319  0.0000  0.3100  1
]