data_[Tb6Hg3Cl3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Hg  2.0000  1.5000  1.2450
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [3.6063]
_cell_length_b [3.6063]
_cell_length_c [27.1358]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [Tb2HgCl]
_chemical_formula_sum '[Tb6 Hg3 Cl3]'
_cell_volume [305.6324]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.0872  1
  Tb  Tb1  3  0.0000  0.0000  0.2463  1
  Hg  Hg2  3  0.0000  0.0000  0.6668  1
  Cl  Cl3  3  0.0000  0.0000  0.4997  1
]