data_[Er12Co4Cu4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Co  1.8800  1.3500  0.7683
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [9.8766]
_cell_length_b [6.0853]
_cell_length_c [8.1370]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.2449]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er3CoCu]
_chemical_formula_sum '[Er12 Co4 Cu4]'
_cell_volume [442.3436]
_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  0.0127  0.0000  0.2307  1.0
  Er  Er1  4  0.1891  0.5000  0.8580  1.0
  Er  Er2  4  0.2010  0.5000  0.3349  1.0
  Co  Co3  4  0.0000  0.3117  0.0000  1.0
  Cu  Cu4  4  0.0000  0.2953  0.5000  1.0
]