data_[Rb1Tb1Hg2F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Tb  1.1000  1.7500  0.9815
  Hg  2.0000  1.5000  1.2450
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [4.1743]
_cell_length_b [6.1256]
_cell_length_c [8.4504]
_cell_angle_alpha [82.2712]
_cell_angle_beta [86.6935]
_cell_angle_gamma [80.4138]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [RbTbHg2F8]
_chemical_formula_sum '[Rb1 Tb1 Hg2 F8]'
_cell_volume [210.9847]
_cell_formula_units_Z [1]
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
[
  Rb  Rb0  1  0.0000  0.0000  0.5000  1.0
  Tb  Tb1  1  0.0000  0.0000  0.0000  1.0
  Hg  Hg2  2  0.4138  0.4557  0.7249  1.0
  F  F3  2  0.0387  0.7477  0.2329  1.0
  F  F4  2  0.0859  0.7663  0.8168  1.0
  F  F5  2  0.4217  0.3012  0.4699  1.0
  F  F6  2  0.4538  0.1998  0.9529  1.0
]