data_[Tb2Er6Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Er  1.2400  1.7500  1.0300
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [5.0697]
_cell_length_b [9.1765]
_cell_length_c [7.0449]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [TbEr3Hg2]
_chemical_formula_sum '[Tb2 Er6 Hg4]'
_cell_volume [327.7475]
_cell_formula_units_Z [2]
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
[
  Tb  Tb0  2  0.5000  0.4443  0.5159  1
  Er  Er1  2  0.0000  0.0559  0.4838  1
  Er  Er2  2  0.0000  0.3232  0.8318  1
  Er  Er3  2  0.5000  0.1737  0.1687  1
  Hg  Hg4  2  0.0000  0.3510  0.2614  1
  Hg  Hg5  2  0.5000  0.1481  0.7385  1
]