data_[Ag3Sn3Te6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  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 [R3m]
_cell_length_a [4.1944]
_cell_length_b [4.1944]
_cell_length_c [22.4206]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [AgSnTe2]
_chemical_formula_sum '[Ag3 Sn3 Te6]'
_cell_volume [341.6068]
_cell_formula_units_Z [3]
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
[
  Ag  Ag0  3  0.0000  0.0000  0.3320  1
  Sn  Sn1  3  0.0000  0.0000  0.4999  1
  Te  Te2  3  0.0000  0.0000  0.7428  1
  Te  Te3  3  0.0000  0.0000  0.9251  1
]