data_[Rb4Ni2P2F12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ni  1.9100  1.3500  0.7400
  P  2.1900  1.0000  0.5500
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [5.7026]
_cell_length_b [5.7026]
_cell_length_c [10.3825]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Rb2NiPF6]
_chemical_formula_sum '[Rb4 Ni2 P2 F12]'
_cell_volume [337.6281]
_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  0.5000  0.2500  1
  Ni  Ni1  2  0.0000  0.0000  0.0000  1
  P  P2  2  0.0000  0.0000  0.5000  1
  F  F3  8  0.2407  0.2407  0.5000  1
  F  F4  4  0.0000  0.0000  0.1881  1
]