data_GeSb2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.69
_cell_length_b   3.69
_cell_length_c   7.85
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GeSb2Pb
_chemical_formula_sum   'Ge1 Sb2 Pb1'
_cell_volume   106.72
_cell_formula_units_Z   1
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  1  0.0  0.0  0.68  1.0
  Sb  Sb2  1  0.0  0.0  0.14  1.0
  Sb  Sb3  1  0.84  0.84  0.19  1.0
  Pb  Pb1  1  0.84  0.84  0.76  1.0

data_GeSb2Pb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.21
_cell_length_b   5.21
_cell_length_c   7.85
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   GeSb2Pb
_chemical_formula_sum   'Ge2 Sb4 Pb2'
_cell_volume   213.43
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.0  0.0  0.68  1.0
  Sb  Sb1  2  0.0  0.0  0.14  1.0
  Sb  Sb2  2  0.34  0.5  0.19  1.0
  Pb  Pb3  2  0.34  0.5  0.76  1.0

Ge Sb Sb Pb
Ge Sb Sb Pb 0 3 - - o 1 2 - - o 