data_[Rb2Ca1Sn1F6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ca  1.0000  1.8000  1.1400
  Sn  1.9600  1.4500  0.8300
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [4.6448]
_cell_length_b [4.6448]
_cell_length_c [9.3046]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [Rb2CaSnF6]
_chemical_formula_sum '[Rb2 Ca1 Sn1 F6]'
_cell_volume [200.7429]
_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  2  0.0000  0.0000  0.2413  1.0
  Ca  Ca1  1  0.5000  0.5000  0.0000  1.0
  Sn  Sn2  1  0.5000  0.5000  0.5000  1.0
  F  F3  2  0.0000  0.5000  0.0000  1.0
  F  F4  2  0.0000  0.5000  0.5000  1.0
  F  F5  2  0.5000  0.5000  0.2405  1.0
]