data_[Sm8Tl4Pb4]
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
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [6.4821]
_cell_length_b [6.4813]
_cell_length_c [12.1360]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.2015]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [Sm2TlPb]
_chemical_formula_sum '[Sm8 Tl4 Pb4]'
_cell_volume [492.0278]
_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  4  0.1952  0.3754  0.1324  1.0
  Sm  Sm1  4  0.3142  0.1280  0.8638  1.0
  Tl  Tl2  4  0.1640  0.1227  0.5930  1.0
  Pb  Pb3  4  0.3232  0.3696  0.4067  1.0
]