data_[Ho20Zn8Hg8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Zn  1.6500  1.3500  0.8800
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Cmce]
_cell_length_a [16.6979]
_cell_length_b [7.3998]
_cell_length_c [7.4797]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [64]
_chemical_formula_structural [Ho5(ZnHg)2]
_chemical_formula_sum '[Ho20 Zn8 Hg8]'
_cell_volume [924.2109]
_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  16  0.1346  0.1813  0.6769  1.0
  Ho  Ho1  4  0.0000  0.0000  0.0000  1.0
  Zn  Zn2  8  0.0000  0.1190  0.3777  1.0
  Hg  Hg3  8  0.2198  0.0000  0.0000  1.0
]