data_[Tl3Ag6As3Br18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Ag  1.9300  1.6000  1.0867
  As  2.1800  1.1500  0.6600
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.5113]
_cell_length_b [7.5113]
_cell_length_c [20.2460]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [TlAg2AsBr6]
_chemical_formula_sum '[Tl3 Ag6 As3 Br18]'
_cell_volume [989.2253]
_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
[
  Tl  Tl0  3  0.0000  0.0000  0.4901  1.0
  Ag  Ag1  3  0.0000  0.0000  0.2406  1.0
  Ag  Ag2  3  0.0000  0.0000  0.8161  1.0
  As  As3  3  0.0000  0.0000  0.0057  1.0
  Br  Br4  9  0.0089  0.2959  0.9106  1.0
  Br  Br5  9  0.0633  0.7073  0.7362  1.0
]