data_[Pm3Ho9Tm18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ho  1.2300  1.7500  1.0410
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [9.7091]
_cell_length_b [9.7091]
_cell_length_c [11.5837]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Pm(HoTm2)3]
_chemical_formula_sum '[Pm3 Ho9 Tm18]'
_cell_volume [945.6693]
_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  0.1035  1
  Ho  Ho1  3  0.0000  0.0000  0.3613  1
  Ho  Ho2  3  0.0000  0.0000  0.6057  1
  Ho  Ho3  3  0.0000  0.0000  0.8574  1
  Tm  Tm4  9  0.0003  0.3303  0.7623  1
  Tm  Tm5  9  0.0005  0.6637  0.9283  1
]