data_[Pm18Sm6Bi18]
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
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [9.3693]
_cell_length_b [9.3693]
_cell_length_c [19.2239]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Pm3SmBi3]
_chemical_formula_sum '[Pm18 Sm6 Bi18]'
_cell_volume [1461.4615]
_cell_formula_units_Z [6]
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  0.0030  0.2634  0.0846  1
  Sm  Sm1  6  0.0000  0.0000  0.3332  1
  Bi  Bi2  18  0.0031  0.3884  0.9183  1
]