data_[Na2Ag2Sn2Te4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ag  1.9300  1.6000  1.0867
  Sn  1.9600  1.4500  0.8300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [7.7580]
_cell_length_b [5.3670]
_cell_length_c [8.3651]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.7754]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [NaAgSnTe2]
_chemical_formula_sum '[Na2 Ag2 Sn2 Te4]'
_cell_volume [323.4505]
_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  0.5000  0.2104  0.2500  1
  Ag  Ag1  2  0.0000  0.0000  0.0000  1
  Sn  Sn2  2  0.0000  0.3879  0.7500  1
  Te  Te3  4  0.2809  0.2998  0.5114  1
]