data_[Pm9Mg3Ag24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Mg  1.3100  1.5000  0.8600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [5.7070]
_cell_length_b [5.7070]
_cell_length_c [27.9853]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [Pm3MgAg8]
_chemical_formula_sum '[Pm9 Mg3 Ag24]'
_cell_volume [789.3645]
_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  3  0.0000  0.0000  0.3799  1
  Pm  Pm1  3  0.0000  0.0000  0.5043  1
  Pm  Pm2  3  0.0000  0.0000  0.9936  1
  Mg  Mg3  3  0.0000  0.0000  0.8709  1
  Ag  Ag4  9  0.0009  0.5004  0.4384  1
  Ag  Ag5  9  0.0028  0.5014  0.9369  1
  Ag  Ag6  3  0.0000  0.0000  0.1883  1
  Ag  Ag7  3  0.0000  0.0000  0.6871  1
]