data_Pb8W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.76
_cell_length_b   7.76
_cell_length_c   7.76
_cell_angle_alpha   95.47
_cell_angle_beta   95.47
_cell_angle_gamma   144.02
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Pb8W
_chemical_formula_sum   'Pb8 W1'
_cell_volume   260.77
_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
  Pb  Pb0  1  0.6  0.4  0.4  1.0
  Pb  Pb1  1  0.4  0.6  0.4  1.0
  Pb  Pb2  1  0.25  0.0  0.0  1.0
  Pb  Pb3  1  0.6  0.6  0.4  1.0
  Pb  Pb4  1  0.0  0.25  0.0  1.0
  Pb  Pb5  1  0.61  0.61  0.0  1.0
  Pb  Pb6  1  0.18  0.0  0.0  1.0
  Pb  Pb7  1  0.0  0.18  0.0  1.0
  W  W8  1  0.0  0.0  0.0  1.0

data_Pb8W
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.79
_cell_length_b   14.75
_cell_length_c   7.76
_cell_angle_alpha   90.0
_cell_angle_beta   107.99
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Pb8W
_chemical_formula_sum   'Pb16 W2'
_cell_volume   521.54
_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
  Pb  Pb0  4  0.37  0.37  0.0  1.0
  Pb  Pb1  4  0.4  0.4  0.4  1.0
  Pb  Pb2  4  0.41  0.41  0.0  1.0
  Pb  Pb3  2  0.29  0.5  0.4  1.0
  Pb  Pb4  2  0.39  0.0  0.0  1.0
  W  W5  2  0.0  0.0  0.0  1.0

Pb Pb Pb Pb Pb Pb Pb Pb W