data_[Ge8Pb8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ge  2.0100  1.2500  0.7700
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P2_12_12_1]
_cell_length_a [8.1749]
_cell_length_b [8.2247]
_cell_length_c [9.3728]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [19]
_chemical_formula_structural [GePb]
_chemical_formula_sum '[Ge8 Pb8]'
_cell_volume [630.1810]
_cell_formula_units_Z [8]
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
[
  Ge  Ge0  4  0.1415  0.4368  0.2615  1
  Ge  Ge1  4  0.1533  0.9054  0.5430  1
  Pb  Pb2  4  0.1557  0.0942  0.2933  1
  Pb  Pb3  4  0.1940  0.3879  0.9699  1
]