data_[Ho12Er20Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.7544]
_cell_length_b [7.9835]
_cell_length_c [10.9058]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.0896]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ho3Er5Sn]
_chemical_formula_sum '[Ho12 Er20 Sn4]'
_cell_volume [1190.7804]
_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
[
  Ho  Ho0  4  0.1660  0.5000  0.2137  1
  Ho  Ho1  4  0.2336  0.5000  0.5337  1
  Ho  Ho2  2  0.0000  0.0000  0.0000  1
  Ho  Ho3  2  0.0000  0.0000  0.5000  1
  Er  Er4  8  0.1255  0.1984  0.7674  1
  Er  Er5  4  0.0000  0.3340  0.0000  1
  Er  Er6  4  0.0045  0.5000  0.6438  1
  Er  Er7  4  0.2392  0.0000  0.0454  1
  Sn  Sn8  4  0.0943  0.0000  0.2609  1
]