data_[Rb10Na2F12]
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
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.8545]
_cell_length_b [11.8788]
_cell_length_c [6.8301]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.5873]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb5NaF6]
_chemical_formula_sum '[Rb10 Na2 F12]'
_cell_volume [523.9457]
_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  0.0000  0.1652  0.5000  1.0
  Rb  Rb1  4  0.0000  0.3332  0.0000  1.0
  Rb  Rb2  2  0.0000  0.5000  0.5000  1.0
  Na  Na3  2  0.0000  0.0000  0.0000  1.0
  F  F4  8  0.2328  0.1537  0.2368  1.0
  F  F5  4  0.2261  0.0000  0.7701  1.0
]