data_[Er16Ag8Hg24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Fmmm]
_cell_length_a [6.7708]
_cell_length_b [9.7414]
_cell_length_c [16.9651]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [69]
_chemical_formula_structural [Er2AgHg3]
_chemical_formula_sum '[Er16 Ag8 Hg24]'
_cell_volume [1118.9762]
_cell_formula_units_Z [8]
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  0.2489  0.0000  0.5000  1
  Er  Er1  8  0.2500  0.2500  0.2500  1
  Ag  Ag2  8  0.0000  0.0000  0.3327  1
  Hg  Hg3  16  0.0000  0.2459  0.4156  1
  Hg  Hg4  8  0.0000  0.0000  0.1687  1
]