data_[Rb3Tl6Cr3Br18]
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
  Cr  1.6600  1.4000  0.9400
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [8.0471]
_cell_length_b [8.0471]
_cell_length_c [20.0555]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [RbTl2CrBr6]
_chemical_formula_sum '[Rb3 Tl6 Cr3 Br18]'
_cell_volume [1124.7037]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.8163  1.0
  Tl  Tl1  3  0.0000  0.0000  0.0232  1.0
  Tl  Tl2  3  0.0000  0.0000  0.5349  1.0
  Cr  Cr3  3  0.0000  0.0000  0.3252  1.0
  Br  Br4  9  0.0265  0.7598  0.4006  1.0
  Br  Br5  9  0.0938  0.3881  0.9201  1.0
]