data_[Pm4Dy16Tl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Dy  1.2200  1.7500  1.1310
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.6756]
_cell_length_b [5.4270]
_cell_length_c [9.8796]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.5328]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm(Dy2Tl)2]
_chemical_formula_sum '[Pm4 Dy16 Tl8]'
_cell_volume [857.1251]
_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  0.0993  0.0000  0.0734  1
  Dy  Dy1  4  0.0342  0.0000  0.6872  1
  Dy  Dy2  4  0.1401  0.5000  0.3269  1
  Dy  Dy3  4  0.2027  0.5000  0.6931  1
  Dy  Dy4  4  0.2418  0.5000  0.0812  1
  Tl  Tl5  4  0.0510  0.5000  0.8685  1
  Tl  Tl6  4  0.1581  0.0000  0.5003  1
]