data_[Ac9Pm6Pr18]
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
  Pr  1.1300  1.8500  1.0600
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [3.7914]
_cell_length_b [3.7914]
_cell_length_c [101.2542]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Ac3(PmPr3)2]
_chemical_formula_sum '[Ac9 Pm6 Pr18]'
_cell_volume [1260.5049]
_cell_formula_units_Z [3]
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  6  0.0000  0.0000  0.2713  1
  Ac  Ac1  3  0.0000  0.0000  0.0000  1
  Pr  Pr2  6  0.0000  0.0000  0.0932  1
  Pr  Pr3  6  0.0000  0.0000  0.1816  1
  Pr  Pr4  6  0.0000  0.0000  0.3643  1
  Pm  Pm5  6  0.0000  0.0000  0.4558  1
]