data_[Mg16Zn4Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Zn  1.6500  1.3500  0.8800
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.9811]
_cell_length_b [4.5487]
_cell_length_c [7.2832]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.9124]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Mg8Zn2Pb]
_chemical_formula_sum '[Mg16 Zn4 Pb2]'
_cell_volume [480.1791]
_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  0.0330  0.0000  0.7410  1
  Mg  Mg1  4  0.0999  0.5000  0.4744  1
  Mg  Mg2  4  0.1791  0.5000  0.9293  1
  Mg  Mg3  4  0.1802  0.0000  0.2720  1
  Zn  Zn4  4  0.1926  0.0000  0.6739  1
  Pb  Pb5  2  0.0000  0.5000  0.0000  1
]