data_[Cu2Ge2Au4Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  Ge  2.0100  1.2500  0.7700
  Au  2.5400  1.3500  1.0700
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [5.8816]
_cell_length_b [5.8816]
_cell_length_c [11.4085]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [CuGe(AuSe2)2]
_chemical_formula_sum '[Cu2 Ge2 Au4 Se8]'
_cell_volume [394.6617]
_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
  Ge  Ge1  2  0.0000  0.5000  0.7500  1.0
  Au  Au2  2  0.0000  0.0000  0.0000  1.0
  Au  Au3  2  0.0000  0.5000  0.2500  1.0
  Se  Se4  8  0.2255  0.2474  0.6230  1.0
]