data_Sb2PbW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.53
_cell_length_b   3.53
_cell_length_c   7.97
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sb2PbW
_chemical_formula_sum   'Sb2 Pb1 W1'
_cell_volume   99.36
_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
  Sb  Sb1  1  0.0  0.0  0.42  1.0
  Sb  Sb2  1  0.77  0.77  0.37  1.0
  Pb  Pb0  1  0.77  0.77  0.61  1.0
  W  W3  1  0.0  0.0  0.56  1.0

data_Sb2PbW
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.99
_cell_length_b   4.99
_cell_length_c   7.97
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Sb2PbW
_chemical_formula_sum   'Sb4 Pb2 W2'
_cell_volume   198.71
_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
  Sb  Sb0  2  0.0  0.0  0.42  1.0
  Sb  Sb1  2  0.27  0.5  0.37  1.0
  Pb  Pb2  2  0.27  0.5  0.61  1.0
  W  W3  2  0.0  0.0  0.56  1.0

Sb Sb Pb W
Sb Sb Pb W 0 1 - - o 0 3 o o o 2 3 + + o 
WPbSb2 is alpha Niobium phosphide-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two WPbSb2 clusters. W(1) is bonded in a distorted single-bond geometry to one Pb(1) and one Sb(1) atom. The W(1)-Pb(1) bond length is 1.24 Å. The W(1)-Sb(1) bond length is 1.10 Å. Pb(1) is bonded in a 2-coordinate geometry to one W(1) and one Sb(2) atom. The Pb(1)-Sb(2) bond length is 1.92 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a distorted single-bond geometry to one W(1) and one Sb(2) atom. The Sb(1)-Sb(2) bond length is 1.24 Å. In the second Sb site, Sb(2) is bonded in a 2-coordinate geometry to one Pb(1) and one Sb(1) atom.