data_[Pm9Pr3Tm18]
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
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [R32]
_cell_length_a [9.8683]
_cell_length_b [9.8683]
_cell_length_c [11.5665]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [155]
_chemical_formula_structural [Pm3PrTm6]
_chemical_formula_sum '[Pm9 Pr3 Tm18]'
_cell_volume [975.4816]
_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  6  0.0000  0.0000  0.2481  1
  Pm  Pm1  3  0.0000  0.0000  0.0000  1
  Pr  Pr2  3  0.0000  0.0000  0.5000  1
  Tm  Tm3  9  0.0000  0.3289  0.5000  1
  Tm  Tm4  9  0.0000  0.6726  0.0000  1
]