data_[Cu2Ag4Sn2Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  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 [I-42m]
_cell_length_a [6.2245]
_cell_length_b [6.2245]
_cell_length_c [13.1054]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [121]
_chemical_formula_structural [CuAg2SnTe4]
_chemical_formula_sum '[Cu2 Ag4 Sn2 Te8]'
_cell_volume [507.7556]
_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
[
  Cu  Cu0  2  0.0000  0.0000  0.5000  1.0
  Ag  Ag1  4  0.0000  0.5000  0.2500  1.0
  Sn  Sn2  2  0.0000  0.0000  0.0000  1.0
  Te  Te3  8  0.2323  0.7677  0.3786  1.0
]