data_[Pm36Sm18Tm3]
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
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [13.2704]
_cell_length_b [13.2704]
_cell_length_c [13.1263]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Pm12Sm6Tm]
_chemical_formula_sum '[Pm36 Sm18 Tm3]'
_cell_volume [2001.8798]
_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  18  0.0000  0.2630  0.0000  1
  Pm  Pm1  18  0.0573  0.5287  0.1122  1
  Sm  Sm2  18  0.0897  0.9103  0.7733  1
  Tm  Tm3  3  0.0000  0.0000  0.0000  1
]