data_[Eu4Mg8Tl4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Eu  1.2000  1.8500  1.1985
  Mg  1.3100  1.5000  0.8600
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [5.0494]
_cell_length_b [8.3673]
_cell_length_c [10.2851]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [EuMg2Tl]
_chemical_formula_sum '[Eu4 Mg8 Tl4]'
_cell_volume [434.5477]
_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
[
  Eu  Eu0  4  0.0000  0.2182  0.6151  1
  Mg  Mg1  4  0.5000  0.1995  0.3772  1
  Mg  Mg2  2  0.0000  0.0000  0.8879  1
  Mg  Mg3  2  0.5000  0.0000  0.0901  1
  Tl  Tl4  2  0.0000  0.0000  0.3319  1
  Tl  Tl5  2  0.5000  0.0000  0.7054  1
]