data_[Mg16Bi2Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Bi  2.0200  1.6000  1.0350
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.9983]
_cell_length_b [4.5966]
_cell_length_c [7.1767]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.0788]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Mg8BiPb2]
_chemical_formula_sum '[Mg16 Bi2 Pb4]'
_cell_volume [548.3242]
_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  4  0.0421  0.0000  0.7249  1
  Mg  Mg1  4  0.0909  0.5000  0.4602  1
  Mg  Mg2  4  0.1773  0.5000  0.9101  1
  Mg  Mg3  4  0.2198  0.0000  0.6406  1
  Bi  Bi4  2  0.0000  0.5000  0.0000  1
  Pb  Pb5  4  0.1525  0.0000  0.1981  1
]