data_[Tb4Ce4Tc4Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ce  1.1200  1.8500  1.0800
  Tc  1.9000  1.3500  0.7417
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [F-43m]
_cell_length_a [7.2062]
_cell_length_b [7.2062]
_cell_length_c [7.2062]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [216]
_chemical_formula_structural [TbCeTcHg]
_chemical_formula_sum '[Tb4 Ce4 Tc4 Hg4]'
_cell_volume [374.2069]
_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
[
  Tb  Tb0  4  0.0000  0.0000  0.0000  1
  Ce  Ce1  4  0.0000  0.0000  0.5000  1
  Tc  Tc2  4  0.2500  0.2500  0.2500  1
  Hg  Hg3  4  0.2500  0.2500  0.7500  1
]