data_[Tm20Tl4Tc8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tm  1.2500  1.7500  1.0950
  Tl  1.6200  1.9000  1.3325
  Tc  1.9000  1.3500  0.7417
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [7.4384]
_cell_length_b [7.4384]
_cell_length_c [14.6246]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [Tm5TlTc2]
_chemical_formula_sum '[Tm20 Tl4 Tc8]'
_cell_volume [809.1688]
_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  0.1730  0.3270  0.6347  1
  Tm  Tm1  4  0.0000  0.0000  0.0000  1
  Tl  Tl2  4  0.0000  0.0000  0.2500  1
  Tc  Tc3  8  0.1199  0.3801  0.0000  1
]