data_[Sm12Tl20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [10.4159]
_cell_length_b [8.2852]
_cell_length_c [10.5502]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Sm3Tl5]
_chemical_formula_sum '[Sm12 Tl20]'
_cell_volume [910.4607]
_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
[
  Sm  Sm0  8  0.2020  0.0000  0.0000  1
  Sm  Sm1  4  0.0000  0.3747  0.7500  1
  Tl  Tl2  8  0.0000  0.3058  0.0498  1
  Tl  Tl3  8  0.2263  0.2850  0.2500  1
  Tl  Tl4  4  0.0000  0.0027  0.2500  1
]