data_[Pm36Ho3Sn18]
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
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [14.7593]
_cell_length_b [14.7593]
_cell_length_c [10.0179]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Pm12HoSn6]
_chemical_formula_sum '[Pm36 Ho3 Sn18]'
_cell_volume [1889.9048]
_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  0.0547  0.2030  0.2875  1
  Pm  Pm1  18  0.0552  0.2490  0.9141  1
  Ho  Ho2  3  0.0000  0.0000  0.0000  1
  Sn  Sn3  18  0.0625  0.2499  0.5936  1
]