data_[Tm20Ni8Bi4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tm  1.2500  1.7500  1.0950
  Ni  1.9100  1.3500  0.7400
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [7.5125]
_cell_length_b [7.5125]
_cell_length_c [13.6433]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [Tm5Ni2Bi]
_chemical_formula_sum '[Tm20 Ni8 Bi4]'
_cell_volume [770.0066]
_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
[
  Tm  Tm0  16  0.1565  0.3435  0.6331  1.0
  Tm  Tm1  4  0.0000  0.0000  0.0000  1.0
  Ni  Ni2  8  0.1309  0.6309  0.5000  1.0
  Bi  Bi3  4  0.0000  0.0000  0.2500  1.0
]