data_[Ac8Pm12Nd12]
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 [Cmcm]
_cell_length_a [3.6926]
_cell_length_b [18.0611]
_cell_length_c [18.0426]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Ac2(PmNd)3]
_chemical_formula_sum '[Ac8 Pm12 Nd12]'
_cell_volume [1203.3086]
_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  0.0000  0.2419  0.0929  1
  Pm  Pm1  8  0.0000  0.4090  0.5022  1
  Pm  Pm2  4  0.0000  0.3542  0.2500  1
  Nd  Nd3  8  0.0000  0.0014  0.6499  1
  Nd  Nd4  4  0.0000  0.3489  0.7500  1
]