data_[Rb2Sr2Tl2Cl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sr  0.9500  2.0000  1.3200
  Tl  1.6200  1.9000  1.3325
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [5.6649]
_cell_length_b [5.6649]
_cell_length_c [16.6318]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [RbSrTlCl4]
_chemical_formula_sum '[Rb2 Sr2 Tl2 Cl8]'
_cell_volume [533.7406]
_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  2  0.0000  0.0000  0.6359  1.0
  Sr  Sr1  2  0.0000  0.0000  0.9981  1.0
  Tl  Tl2  2  0.0000  0.0000  0.3475  1.0
  Cl  Cl3  4  0.0000  0.5000  0.0077  1.0
  Cl  Cl4  2  0.0000  0.0000  0.1752  1.0
  Cl  Cl5  2  0.0000  0.0000  0.8278  1.0
]