data_[Ac1Tb4Pm5]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Tb  1.1000  1.7500  0.9815
  Pm  1.1300  1.8500  1.1100
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [3.6678]
_cell_length_b [3.6678]
_cell_length_c [25.5807]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [AcTb4Pm5]
_chemical_formula_sum '[Ac1 Tb4 Pm5]'
_cell_volume [344.1288]
_cell_formula_units_Z [1]
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
[
  Tb  Tb0  2  0.0000  0.0000  0.2069  1
  Tb  Tb1  2  0.0000  0.0000  0.4023  1
  Ac  Ac2  1  0.0000  0.0000  0.0000  1
  Pm  Pm3  2  0.5000  0.5000  0.1090  1
  Pm  Pm4  2  0.5000  0.5000  0.3049  1
  Pm  Pm5  1  0.5000  0.5000  0.5000  1
]