data_[Rb4Tl2Sn4I14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Tl  1.6200  1.9000  1.3325
  Sn  1.9600  1.4500  0.8300
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.8162]
_cell_length_b [8.9149]
_cell_length_c [15.9264]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.4623]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2TlSn2I7]
_chemical_formula_sum '[Rb4 Tl2 Sn4 I14]'
_cell_volume [1206.4408]
_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  0.2292  0.0000  0.3537  1.0
  Tl  Tl1  2  0.0000  0.0000  0.0000  1.0
  Sn  Sn2  4  0.1243  0.5000  0.2068  1.0
  I  I3  8  0.1131  0.2343  0.8063  1.0
  I  I4  4  0.1956  0.5000  0.4085  1.0
  I  I5  2  0.0000  0.5000  0.0000  1.0
]