data_[Na4Tl4Cr4Cl16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tl  1.6200  1.9000  1.3325
  Cr  1.6600  1.4000  0.9400
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [7.9489]
_cell_length_b [9.4830]
_cell_length_c [10.3267]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [NaTlCrCl4]
_chemical_formula_sum '[Na4 Tl4 Cr4 Cl16]'
_cell_volume [778.4166]
_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  0.0000  0.5000  1.0
  Tl  Tl1  4  0.0000  0.2500  0.1758  1.0
  Cr  Cr2  4  0.2500  0.2500  0.7500  1.0
  Cl  Cl3  8  0.0000  0.0731  0.7603  1.0
  Cl  Cl4  8  0.2233  0.2500  0.5179  1.0
]