data_[Na2Sb2Te6As2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sb  2.0500  1.4500  0.8300
  Te  2.1000  1.4000  1.2933
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.5860]
_cell_length_b [4.3509]
_cell_length_c [10.8117]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.2795]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaSbTe3As]
_chemical_formula_sum '[Na2 Sb2 Te6 As2]'
_cell_volume [385.6610]
_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  0.2348  0.7500  0.2829  1
  Sb  Sb1  2  0.3750  0.2500  0.8254  1
  Te  Te2  2  0.1016  0.7500  0.7715  1
  Te  Te3  2  0.3598  0.2500  0.1036  1
  Te  Te4  2  0.3663  0.2500  0.5330  1
  As  As5  2  0.1007  0.7500  0.5272  1
]