data_Cu2PbW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.32
_cell_length_b   9.32
_cell_length_c   9.32
_cell_angle_alpha   18.26
_cell_angle_beta   18.26
_cell_angle_gamma   18.26
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu2PbW
_chemical_formula_sum   'Cu2 Pb1 W1'
_cell_volume   69.42
_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
  Cu  Cu0  1  0.0  0.0  0.08  1.0
  Cu  Cu1  1  0.0  0.0  0.4  1.0
  Pb  Pb2  1  0.0  0.0  0.74  1.0
  W  W3  1  0.0  0.0  0.0  1.0

data_Cu2PbW
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.12
_cell_length_b   2.96
_cell_length_c   9.32
_cell_angle_alpha   90.0
_cell_angle_beta   100.56
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Cu2PbW
_chemical_formula_sum   'Cu4 Pb2 W2'
_cell_volume   138.85
_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
  Cu  Cu0  2  0.0  0.0  0.6  1.0
  Cu  Cu1  2  0.0  0.0  0.92  1.0
  Pb  Pb2  2  0.0  0.0  0.26  1.0
  W  W3  2  0.0  0.0  0.0  1.0

Cu Cu Pb W
Cu Cu Pb W 0 3 o o o 0 1 o o o 0 2 o o - 1 1 o + - 1 1 + - o 1 1 + o - 1 2 o o o 2 2 o + - 2 2 + - o 2 2 + o - 2 3 o o + 
WCu2Pb crystallizes in the monoclinic Cm space group. W(1) is bonded in a single-bond geometry to one Cu(1) and one Pb(1) atom. The W(1)-Cu(1) bond length is 0.77 Å. The W(1)-Pb(1) bond length is 2.40 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a single-bond geometry to one W(1) and one Cu(2) atom. The Cu(1)-Cu(2) bond length is 2.97 Å. In the second Cu site, Cu(2) is bonded to one Cu(1), six equivalent Cu(2), and one Pb(1) atom to form a mixture of distorted corner and edge-sharing CuCu7Pb hexagonal bipyramids. All Cu(2)-Cu(2) bond lengths are 2.96 Å. The Cu(2)-Pb(1) bond length is 3.18 Å. Pb(1) is bonded in a distorted linear geometry to one W(1) and one Cu(2) atom.