data_[Pm8Y12Tm8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Y  1.2200  1.8000  1.0400
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [I2_13]
_cell_length_a [9.7567]
_cell_length_b [9.7567]
_cell_length_c [9.7567]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [199]
_chemical_formula_structural [Pm2Y3Tm2]
_chemical_formula_sum '[Pm8 Y12 Tm8]'
_cell_volume [928.7781]
_cell_formula_units_Z [4]
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  8  0.1545  0.6545  0.8455  1
  Y  Y1  12  0.0000  0.2500  0.3102  1
  Tm  Tm2  8  0.0457  0.0457  0.0457  1
]