data_[Rb4Sn4F12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sn  1.9600  1.4500  0.8300
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.5155]
_cell_length_b [16.1357]
_cell_length_c [6.3170]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbSnF3]
_chemical_formula_sum '[Rb4 Sn4 F12]'
_cell_volume [460.2644]
_cell_formula_units_Z [4]
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  0.1823  0.2500  1.0
  Sn  Sn1  4  0.0000  0.4317  0.2500  1.0
  F  F2  8  0.0000  0.3395  0.0207  1.0
  F  F3  4  0.0000  0.0896  0.7500  1.0
]