data_[Y12Tm1Tl3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Tm  1.2500  1.7500  1.0950
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [4.8846]
_cell_length_b [4.8846]
_cell_length_c [19.9150]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [Y12TmTl3]
_chemical_formula_sum '[Y12 Tm1 Tl3]'
_cell_volume [475.1634]
_cell_formula_units_Z [1]
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
[
  Y  Y0  4  0.0000  0.5000  0.1298  1
  Y  Y1  4  0.0000  0.5000  0.3773  1
  Y  Y2  2  0.5000  0.5000  0.2547  1
  Y  Y3  1  0.5000  0.5000  0.0000  1
  Y  Y4  1  0.5000  0.5000  0.5000  1
  Tm  Tm5  1  0.0000  0.0000  0.0000  1
  Tl  Tl6  2  0.0000  0.0000  0.2563  1
  Tl  Tl7  1  0.0000  0.0000  0.5000  1
]