data_[Cu10Si2Te8Cl4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  Si  1.9000  1.1000  0.5400
  Te  2.1000  1.4000  1.2933
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [7.7643]
_cell_length_b [11.8044]
_cell_length_c [6.2538]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Cu5Si(Te2Cl)2]
_chemical_formula_sum '[Cu10 Si2 Te8 Cl4]'
_cell_volume [573.1790]
_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  8  0.2303  0.1673  0.9120  1
  Si  Si1  2  0.0000  0.0000  0.4368  1
  Cu  Cu2  2  0.5000  0.0000  0.3515  1
  Te  Te3  4  0.0000  0.1822  0.2151  1
  Te  Te4  4  0.2695  0.0000  0.6570  1
  Cl  Cl5  4  0.5000  0.1602  0.1126  1
]