data_[Pm18Y36Cd3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Y  1.2200  1.8000  1.0400
  Cd  1.6900  1.5500  1.0900
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [11.9746]
_cell_length_b [11.9746]
_cell_length_c [15.0726]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Pm6Y12Cd]
_chemical_formula_sum '[Pm18 Y36 Cd3]'
_cell_volume [1871.7279]
_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
[
  Pm  Pm0  18  0.0178  0.4252  0.6870  1
  Y  Y1  18  0.0062  0.1761  0.8139  1
  Y  Y2  18  0.0482  0.8519  0.4151  1
  Cd  Cd3  3  0.0000  0.0000  0.0000  1
]