data_[Pm12Y3Tm1]
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 [P4/mmm]
_cell_length_a [5.1295]
_cell_length_b [5.1295]
_cell_length_c [20.4715]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [Pm12Y3Tm]
_chemical_formula_sum '[Pm12 Y3 Tm1]'
_cell_volume [538.6318]
_cell_formula_units_Z [1]
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  4  0.0000  0.5000  0.1237  1
  Pm  Pm1  4  0.0000  0.5000  0.3745  1
  Pm  Pm2  2  0.5000  0.5000  0.2489  1
  Pm  Pm3  1  0.5000  0.5000  0.0000  1
  Pm  Pm4  1  0.5000  0.5000  0.5000  1
  Y  Y5  2  0.0000  0.0000  0.2491  1
  Y  Y6  1  0.0000  0.0000  0.5000  1
  Tm  Tm7  1  0.0000  0.0000  0.0000  1
]