data_[Na8Mg4Tl20Cd4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Mg  1.3100  1.5000  0.8600
  Tl  1.6200  1.9000  1.3325
  Cd  1.6900  1.5500  1.0900
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [5.3270]
_cell_length_b [18.0778]
_cell_length_c [10.9053]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Na2MgTl5Cd]
_chemical_formula_sum '[Na8 Mg4 Tl20 Cd4]'
_cell_volume [1050.1829]
_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
[
  Na  Na0  4  0.0000  0.0873  0.3106  1.0
  Na  Na1  4  0.0000  0.1240  0.7245  1.0
  Mg  Mg2  4  0.0000  0.2004  0.0352  1.0
  Tl  Tl3  4  0.0000  0.0244  0.0288  1.0
  Tl  Tl4  4  0.0000  0.2508  0.3661  1.0
  Tl  Tl5  4  0.0000  0.3069  0.6992  1.0
  Tl  Tl6  4  0.0000  0.3746  0.0002  1.0
  Tl  Tl7  4  0.0000  0.4954  0.7159  1.0
  Cd  Cd8  4  0.0000  0.4082  0.4433  1.0
]