data_Rb2NbF6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.26
_cell_length_b   6.26
_cell_length_c   4.78
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Rb2NbF6
_chemical_formula_sum   'Rb2 Nb1 F6'
_cell_volume   162.41
_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  Rb6  1  0.0  0.62  0.33  1.0
  Rb  Rb7  1  0.13  0.81  0.45  1.0
  Nb  Nb8  1  0.0  0.0  0.0  1.0
  F  F0  1  0.76  0.87  0.74  1.0
  F  F1  1  0.13  0.69  0.74  1.0
  F  F2  1  0.5  0.87  0.74  1.0
  F  F3  1  0.37  0.56  0.04  1.0
  F  F4  1  0.0  0.73  0.04  1.0
  F  F5  1  0.63  0.56  0.04  1.0

data_Rb2NbF6
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.78
_cell_length_b   6.26
_cell_length_c   6.26
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Rb2NbF6
_chemical_formula_sum   'Rb2 Nb1 F6'
_cell_volume   162.41
_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  0.33  0.0  0.62  1.0
  Rb  Rb1  1  0.45  0.13  0.81  1.0
  Nb  Nb2  1  0.0  0.0  0.0  1.0
  F  F3  1  0.04  0.0  0.73  1.0
  F  F4  1  0.04  0.37  0.56  1.0
  F  F5  1  0.04  0.63  0.56  1.0
  F  F6  1  0.74  0.13  0.69  1.0
  F  F7  1  0.74  0.5  0.87  1.0
  F  F8  1  0.74  0.76  0.87  1.0

Rb Rb Nb F F F F F F