data_[Pm8Pr8Mg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Pr  1.1300  1.8500  1.0600
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [6.6905]
_cell_length_b [8.7289]
_cell_length_c [11.6787]
_cell_angle_alpha [100.0293]
_cell_angle_beta [98.6962]
_cell_angle_gamma [109.8501]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Pm4Pr4Mg]
_chemical_formula_sum '[Pm8 Pr8 Mg2]'
_cell_volume [615.2151]
_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
[
  Pr  Pr0  2  0.0604  0.8485  0.8904  1
  Pr  Pr1  2  0.1537  0.1330  0.7073  1
  Pr  Pr2  2  0.1745  0.5602  0.6728  1
  Pm  Pm3  2  0.2614  0.8440  0.4802  1
  Pr  Pr4  2  0.2740  0.2815  0.4372  1
  Pm  Pm5  2  0.3498  0.5607  0.2414  1
  Pm  Pm6  2  0.3899  0.9988  0.2120  1
  Pm  Pm7  2  0.4861  0.2837  0.0124  1
  Mg  Mg8  2  0.0518  0.3837  0.9136  1
]