data_[Mg2Tl8Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Tl  1.6200  1.9000  1.3325
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.7926]
_cell_length_b [6.7279]
_cell_length_c [9.1449]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.0440]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [MgTl4Pb]
_chemical_formula_sum '[Mg2 Tl8 Pb2]'
_cell_volume [354.4125]
_cell_formula_units_Z [2]
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
[
  Mg  Mg0  2  0.1388  0.2500  0.4573  1
  Tl  Tl1  4  0.2185  0.0068  0.7644  1
  Tl  Tl2  2  0.2308  0.7500  0.0816  1
  Tl  Tl3  2  0.3467  0.7500  0.4410  1
  Pb  Pb4  2  0.2875  0.2500  0.1405  1
]