data_[Sr6Tl3Ag3Cl18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Tl  1.6200  1.9000  1.3325
  Ag  1.9300  1.6000  1.0867
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.4599]
_cell_length_b [7.4599]
_cell_length_c [20.0351]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Sr2TlAgCl6]
_chemical_formula_sum '[Sr6 Tl3 Ag3 Cl18]'
_cell_volume [965.5929]
_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
[
  Sr  Sr0  3  0.0000  0.0000  0.4828  1.0
  Sr  Sr1  3  0.0000  0.0000  0.9906  1.0
  Tl  Tl2  3  0.0000  0.0000  0.1962  1.0
  Ag  Ag3  3  0.0000  0.0000  0.6846  1.0
  Cl  Cl4  9  0.0151  0.3456  0.7447  1.0
  Cl  Cl5  9  0.0283  0.6257  0.2501  1.0
]