data_[Sm28Sb16Te16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Sb  2.0500  1.4500  0.8300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [15.5170]
_cell_length_b [15.5170]
_cell_length_c [8.1526]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Sm7(SbTe)4]
_chemical_formula_sum '[Sm28 Sb16 Te16]'
_cell_volume [1962.9568]
_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  0.0000  0.2810  0.0000  1
  Sm  Sm1  8  0.0000  0.3615  0.5000  1
  Sm  Sm2  8  0.2065  0.7935  0.5000  1
  Sm  Sm3  4  0.0000  0.0000  0.2413  1
  Sb  Sb4  16  0.1481  0.3519  0.2500  1
  Te  Te5  8  0.0000  0.1645  0.5000  1
  Te  Te6  8  0.1218  0.1218  0.0000  1
]