data_[Er8Zn8Cu4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Zn  1.6500  1.3500  0.8800
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [9.8595]
_cell_length_b [4.3559]
_cell_length_c [10.5038]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.6891]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er2Zn2Cu]
_chemical_formula_sum '[Er8 Zn8 Cu4]'
_cell_volume [406.5247]
_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
[
  Er  Er0  4  0.0134  0.0000  0.3355  1.0
  Er  Er1  4  0.1955  0.0000  0.1112  1.0
  Zn  Zn2  4  0.0107  0.5000  0.8840  1.0
  Zn  Zn3  4  0.1456  0.5000  0.5634  1.0
  Cu  Cu4  4  0.2241  0.5000  0.3453  1.0
]