data_[Na2Pm4Au12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Pm  1.1300  1.8500  1.1100
  Au  2.5400  1.3500  1.0700
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [3.7648]
_cell_length_b [7.6363]
_cell_length_c [14.9261]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Na(PmAu3)2]
_chemical_formula_sum '[Na2 Pm4 Au12]'
_cell_volume [429.1120]
_cell_formula_units_Z [2]
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
[
  Na  Na0  2  0.0000  0.0000  0.5000  1
  Pm  Pm1  4  0.0000  0.5000  0.3624  1
  Au  Au2  8  0.0000  0.3106  0.8224  1
  Au  Au3  4  0.0000  0.1909  0.0000  1
]