data_[Ho20Co4Hg8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Co  1.8800  1.3500  0.7683
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.2217]
_cell_length_b [15.8486]
_cell_length_c [12.2239]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Ho5CoHg2]
_chemical_formula_sum '[Ho20 Co4 Hg8]'
_cell_volume [1011.6126]
_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  8  0.0000  0.0772  0.1051  1
  Ho  Ho1  8  0.0000  0.3039  0.0807  1
  Ho  Ho2  4  0.0000  0.2964  0.7500  1
  Co  Co3  4  0.0000  0.1954  0.2500  1
  Hg  Hg4  8  0.0000  0.1125  0.6335  1
]