data_[Na8Sm4Al4Te16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sm  1.1700  1.8500  1.2290
  Al  1.6100  1.2500  0.6750
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [8.5325]
_cell_length_b [9.0952]
_cell_length_c [12.5857]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [Na2SmAlTe4]
_chemical_formula_sum '[Na8 Sm4 Al4 Te16]'
_cell_volume [976.7211]
_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
[
  Na  Na0  4  0.0000  0.0000  0.5000  1
  Na  Na1  4  0.2500  0.2500  0.2500  1
  Sm  Sm2  4  0.0000  0.0000  0.0000  1
  Al  Al3  4  0.2500  0.2500  0.7500  1
  Te  Te4  8  0.0000  0.0385  0.7501  1
  Te  Te5  8  0.2498  0.2500  0.9875  1
]