data_[Er20Co8]
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
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [15.7444]
_cell_length_b [6.2379]
_cell_length_c [6.8853]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.8219]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Er5Co2]
_chemical_formula_sum '[Er20 Co8]'
_cell_volume [671.4354]
_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  8  0.0946  0.1085  0.4133  1.0
  Er  Er1  8  0.2161  0.4316  0.8152  1.0
  Er  Er2  4  0.0000  0.4292  0.7500  1.0
  Co  Co3  8  0.1113  0.2873  0.0723  1.0
]