data_[Er1Zn3Cu2]
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 [P6/mmm]
_cell_length_a [5.1293]
_cell_length_b [5.1293]
_cell_length_c [4.2175]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [191]
_chemical_formula_structural [ErZn3Cu2]
_chemical_formula_sum '[Er1 Zn3 Cu2]'
_cell_volume [96.0952]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.0000  1.0
  Zn  Zn1  3  0.0000  0.5000  0.5000  1.0
  Cu  Cu2  2  0.3333  0.6667  0.0000  1.0
]