data_[K2Mg3Tl1Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Mg  1.3100  1.5000  0.8600
  Tl  1.6200  1.9000  1.3325
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P-4m2]
_cell_length_a [4.8533]
_cell_length_b [4.8533]
_cell_length_c [12.8692]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [115]
_chemical_formula_structural [K2Mg3TlSn4]
_chemical_formula_sum '[K2 Mg3 Tl1 Sn4]'
_cell_volume [303.1223]
_cell_formula_units_Z [1]
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  2  0.0000  0.5000  0.7507  1
  Mg  Mg1  2  0.0000  0.5000  0.1359  1
  Mg  Mg2  1  0.0000  0.0000  0.5000  1
  Tl  Tl3  1  0.5000  0.5000  0.5000  1
  Sn  Sn4  2  0.0000  0.5000  0.3599  1
  Sn  Sn5  1  0.0000  0.0000  0.0000  1
  Sn  Sn6  1  0.5000  0.5000  0.0000  1
]