data_[Pm8Sm10Mg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sm  1.1700  1.8500  1.2290
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [10.7324]
_cell_length_b [10.7324]
_cell_length_c [5.9265]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [Pm4Sm5Mg]
_chemical_formula_sum '[Pm8 Sm10 Mg2]'
_cell_volume [682.6355]
_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
[
  Pm  Pm0  8  0.0000  0.3186  0.5363  1
  Sm  Sm1  8  0.1857  0.8143  0.0486  1
  Sm  Sm2  2  0.0000  0.0000  0.3372  1
  Mg  Mg3  2  0.0000  0.0000  0.8131  1
]