data_[Pm20Sm8Ho8]
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
  Ho  1.2300  1.7500  1.0410
]
_symmetry_space_group_name_H-M [Ima2]
_cell_length_a [15.2107]
_cell_length_b [12.9434]
_cell_length_c [6.2111]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [46]
_chemical_formula_structural [Pm5(SmHo)2]
_chemical_formula_sum '[Pm20 Sm8 Ho8]'
_cell_volume [1222.8413]
_cell_formula_units_Z [4]
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  0.0473  0.6989  0.1644  1
  Pm  Pm1  8  0.1437  0.1864  0.0078  1
  Pm  Pm2  4  0.2500  0.6779  0.9258  1
  Sm  Sm3  4  0.0000  0.0000  0.0826  1
  Sm  Sm4  4  0.2500  0.5562  0.4527  1
  Ho  Ho5  8  0.1362  0.4505  0.0152  1
]