data_[Pm20Tl8Sb8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Tl  1.6200  1.9000  1.3325
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Cmce]
_cell_length_a [15.9499]
_cell_length_b [8.3467]
_cell_length_c [8.3766]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [64]
_chemical_formula_structural [Pm5(TlSb)2]
_chemical_formula_sum '[Pm20 Tl8 Sb8]'
_cell_volume [1115.1729]
_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  16  0.1354  0.1706  0.6647  1
  Pm  Pm1  4  0.0000  0.0000  0.0000  1
  Tl  Tl2  8  0.2067  0.0000  0.0000  1
  Sb  Sb3  8  0.0000  0.1375  0.3600  1
]