data_[Pm3Nd36Tm21]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Nd  1.1400  1.8500  1.2765
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [15.2244]
_cell_length_b [15.2244]
_cell_length_c [10.1188]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [PmNd12Tm7]
_chemical_formula_sum '[Pm3 Nd36 Tm21]'
_cell_volume [2031.1414]
_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  0.0000  1
  Nd  Nd1  18  0.0439  0.8440  0.2520  1
  Nd  Nd2  18  0.0469  0.7980  0.5770  1
  Tm  Tm3  18  0.0664  0.8213  0.9253  1
  Tm  Tm4  3  0.0000  0.0000  0.5000  1
]