data_[Ac8Pm4Nd12]
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 [16.0460]
_cell_length_b [5.3670]
_cell_length_c [11.9103]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.5646]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac2PmNd3]
_chemical_formula_sum '[Ac8 Pm4 Nd12]'
_cell_volume [917.4156]
_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  4  0.0359  0.5000  0.8673  1
  Ac  Ac1  4  0.2083  0.0000  0.8676  1
  Pm  Pm2  4  0.1267  0.0000  0.1317  1
  Nd  Nd3  4  0.0462  0.0000  0.3836  1
  Nd  Nd4  4  0.1239  0.5000  0.6184  1
  Nd  Nd5  4  0.2099  0.5000  0.3809  1
]