data_[Na2Sn10Te12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sn  1.9600  1.4500  0.8300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.8058]
_cell_length_b [13.5701]
_cell_length_c [7.8252]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.8085]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaSn5Te6]
_chemical_formula_sum '[Na2 Sn10 Te12]'
_cell_volume [779.8377]
_cell_formula_units_Z [2]
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  2  0.0000  0.0000  0.0000  1.0
  Sn  Sn1  4  0.0000  0.1674  0.5000  1.0
  Sn  Sn2  4  0.0000  0.3355  0.0000  1.0
  Sn  Sn3  2  0.0000  0.5000  0.5000  1.0
  Te  Te4  8  0.2459  0.3308  0.7476  1.0
  Te  Te5  4  0.2441  0.5000  0.2485  1.0
]