data_[K3Tl3Pb6Br18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Tl  1.6200  1.9000  1.3325
  Pb  2.3300  1.8000  1.1225
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [8.1412]
_cell_length_b [8.1412]
_cell_length_c [20.8728]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [KTl(PbBr3)2]
_chemical_formula_sum '[K3 Tl3 Pb6 Br18]'
_cell_volume [1198.0932]
_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
[
  K  K0  3  0.0000  0.0000  0.3030  1.0
  Tl  Tl1  3  0.0000  0.0000  0.8041  1.0
  Pb  Pb2  3  0.0000  0.0000  0.0133  1.0
  Pb  Pb3  3  0.0000  0.0000  0.5130  1.0
  Br  Br4  9  0.0644  0.3507  0.5876  1.0
  Br  Br5  9  0.0694  0.7192  0.0877  1.0
]