data_[Pm6Nd8Tm16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Nd  1.1400  1.8500  1.2765
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.4097]
_cell_length_b [12.8612]
_cell_length_c [6.7434]
_cell_angle_alpha [90.0000]
_cell_angle_beta [120.1376]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm3(NdTm2)4]
_chemical_formula_sum '[Pm6 Nd8 Tm16]'
_cell_volume [1005.7935]
_cell_formula_units_Z [2]
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  0.2500  0.2500  0.0000  1
  Pm  Pm1  2  0.0000  0.5000  0.5000  1
  Nd  Nd2  4  0.2500  0.2500  0.5000  1
  Nd  Nd3  2  0.0000  0.0000  0.0000  1
  Nd  Nd4  2  0.0000  0.0000  0.5000  1
  Tm  Tm5  4  0.0000  0.2560  0.5000  1
  Tm  Tm6  4  0.0000  0.3620  0.0000  1
  Tm  Tm7  4  0.2316  0.5000  0.4706  1
  Tm  Tm8  4  0.2317  0.5000  0.9920  1
]