data_[Tb14Zn4Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Zn  1.6500  1.3500  0.8800
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [7.5696]
_cell_length_b [11.0373]
_cell_length_c [7.6355]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Tb7(ZnHg)2]
_chemical_formula_sum '[Tb14 Zn4 Hg4]'
_cell_volume [637.9237]
_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  8  0.2500  0.2500  0.2787  1
  Tb  Tb1  4  0.0000  0.5000  0.2441  1
  Tb  Tb2  2  0.0000  0.0000  0.0000  1
  Zn  Zn3  4  0.0000  0.2906  0.0000  1
  Hg  Hg4  4  0.1866  0.0000  0.5000  1
]