data_[Rb4Na2Tb2F12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Tb  1.1000  1.7500  0.9815
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.3826]
_cell_length_b [6.3614]
_cell_length_c [11.0466]
_cell_angle_alpha [90.0000]
_cell_angle_beta [125.3442]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Rb2NaTbF6]
_chemical_formula_sum '[Rb4 Na2 Tb2 F12]'
_cell_volume [365.8535]
_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
[
  Rb  Rb0  4  0.2487  0.0133  0.2506  1.0
  Na  Na1  2  0.5000  0.0000  0.0000  1.0
  Tb  Tb2  2  0.0000  0.0000  0.5000  1.0
  F  F3  4  0.1954  0.2345  0.9765  1.0
  F  F4  4  0.2420  0.7196  0.9774  1.0
  F  F5  4  0.2872  0.0064  0.7422  1.0
]