data_[Zn6Cu6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Zn  1.6500  1.3500  0.8800
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.2579]
_cell_length_b [7.9803]
_cell_length_c [4.6135]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [ZnCu]
_chemical_formula_sum '[Zn6 Cu6]'
_cell_volume [156.7641]
_cell_formula_units_Z [6]
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
[
  Zn  Zn0  4  0.0000  0.1696  0.1736  1.0
  Zn  Zn1  2  0.5000  0.0000  0.9912  1.0
  Cu  Cu2  4  0.5000  0.1654  0.4989  1.0
  Cu  Cu3  2  0.0000  0.0000  0.6658  1.0
]