data_[Cs2Rb1Nb1F6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Rb  0.8200  2.3500  1.6600
  Nb  1.6000  1.4500  0.8200
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [6.5745]
_cell_length_b [6.6999]
_cell_length_c [6.7733]
_cell_angle_alpha [62.9056]
_cell_angle_beta [61.0544]
_cell_angle_gamma [61.7408]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Cs2RbNbF6]
_chemical_formula_sum '[Cs2 Rb1 Nb1 F6]'
_cell_volume [219.8315]
_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
[
  Cs  Cs0  2  0.2551  0.2466  0.2406  1.0
  Rb  Rb1  1  0.5000  0.5000  0.5000  1.0
  Nb  Nb2  1  0.0000  0.0000  0.0000  1.0
  F  F3  2  0.1608  0.2725  0.8172  1.0
  F  F4  2  0.2235  0.8546  0.7179  1.0
  F  F5  2  0.2541  0.7494  0.1826  1.0
]