data_[Cu4Si4Cl4]
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
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Fmm2]
_cell_length_a [3.5728]
_cell_length_b [5.4320]
_cell_length_c [11.5326]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [42]
_chemical_formula_structural [CuSiCl]
_chemical_formula_sum '[Cu4 Si4 Cl4]'
_cell_volume [223.8175]
_cell_formula_units_Z [4]
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  4  0.0000  0.0000  0.3342  1
  Si  Si1  4  0.0000  0.0000  0.7013  1
  Cl  Cl2  4  0.0000  0.0000  0.9645  1
]