data_[Ac8Pm4Cd4Se20]
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
  Cd  1.6900  1.5500  1.0900
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.2907]
_cell_length_b [18.3283]
_cell_length_c [13.0103]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Ac2PmCdSe5]
_chemical_formula_sum '[Ac8 Pm4 Cd4 Se20]'
_cell_volume [1023.1381]
_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  0.0000  0.1170  0.6875  1
  Ac  Ac1  4  0.0000  0.1336  0.3094  1
  Pm  Pm2  4  0.0000  0.2003  0.0103  1
  Cd  Cd3  4  0.0000  0.4576  0.4556  1
  Se  Se4  4  0.0000  0.0452  0.0710  1
  Se  Se5  4  0.0000  0.2896  0.6681  1
  Se  Se6  4  0.0000  0.3130  0.3520  1
  Se  Se7  4  0.0000  0.3595  0.0017  1
  Se  Se8  4  0.0000  0.4938  0.7683  1
]