data_[Ac4Pm24Er16]
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
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.6089]
_cell_length_b [23.6104]
_cell_length_c [17.8242]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Ac(Pm3Er2)2]
_chemical_formula_sum '[Ac4 Pm24 Er16]'
_cell_volume [1518.7495]
_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  0.3637  0.7500  1
  Pm  Pm1  8  0.0000  0.0123  0.1605  1
  Pm  Pm2  8  0.0000  0.2430  0.5835  1
  Pm  Pm3  4  0.0000  0.2684  0.2500  1
  Pm  Pm4  4  0.0000  0.5000  0.0000  1
  Er  Er5  8  0.0000  0.1274  0.0380  1
  Er  Er6  8  0.0000  0.3852  0.1366  1
]