data_[K12Tl4]
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
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [9.5822]
_cell_length_b [11.8284]
_cell_length_c [7.7470]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [K3Tl]
_chemical_formula_sum '[K12 Tl4]'
_cell_volume [878.0707]
_cell_formula_units_Z [4]
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  8  0.1789  0.5539  0.6309  1.0
  K  K1  4  0.0268  0.7500  0.1056  1.0
  Tl  Tl2  4  0.1166  0.2500  0.4176  1.0
]