data_[Pm4Nd12Tm20]
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 [15.3691]
_cell_length_b [11.1724]
_cell_length_c [10.0477]
_cell_angle_alpha [90.0000]
_cell_angle_beta [130.5722]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [PmNd3Tm5]
_chemical_formula_sum '[Pm4 Nd12 Tm20]'
_cell_volume [1310.5125]
_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  4  0.2469  0.0000  0.0919  1
  Nd  Nd1  4  0.0095  0.5000  0.2137  1
  Nd  Nd2  4  0.0277  0.0000  0.6876  1
  Nd  Nd3  2  0.0000  0.0000  0.0000  1
  Nd  Nd4  2  0.0000  0.5000  0.5000  1
  Tm  Tm5  8  0.1581  0.7521  0.5614  1
  Tm  Tm6  4  0.0000  0.2605  0.0000  1
  Tm  Tm7  4  0.2126  0.5000  0.2041  1
  Tm  Tm8  4  0.2223  0.0000  0.4101  1
]